// Copyright (c) Microsoft. All rights reserved. using System; using System.ClientModel; using System.ClientModel.Primitives; using System.Collections.Generic; using System.IO; using System.Linq; using System.Net; using System.Net.Http; using System.Text; using System.Text.Json; using System.Threading; using System.Threading.Tasks; using Azure.AI.Projects; using Azure.AI.Projects.OpenAI; using Microsoft.Extensions.AI; using Moq; using OpenAI.Responses; namespace Microsoft.Agents.AI.AzureAI.UnitTests; /// /// Unit tests for the class. /// public sealed class AzureAIProjectChatClientExtensionsTests { #region AsAIAgent(AIProjectClient, AgentRecord) Tests /// /// Verify that AsAIAgent throws ArgumentNullException when AIProjectClient is null. /// [Fact] public void AsAIAgent_WithAgentRecord_WithNullClient_ThrowsArgumentNullException() { // Arrange AIProjectClient? client = null; AgentRecord agentRecord = this.CreateTestAgentRecord(); // Act & Assert var exception = Assert.Throws(() => client!.AsAIAgent(agentRecord)); Assert.Equal("aiProjectClient", exception.ParamName); } /// /// Verify that AsAIAgent throws ArgumentNullException when agentRecord is null. /// [Fact] public void AsAIAgent_WithAgentRecord_WithNullAgentRecord_ThrowsArgumentNullException() { // Arrange var mockClient = new Mock(); // Act & Assert var exception = Assert.Throws(() => mockClient.Object.AsAIAgent((AgentRecord)null!)); Assert.Equal("agentRecord", exception.ParamName); } /// /// Verify that AsAIAgent with AgentRecord creates a valid agent. /// [Fact] public void AsAIAgent_WithAgentRecord_CreatesValidAgent() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); AgentRecord agentRecord = this.CreateTestAgentRecord(); // Act var agent = client.AsAIAgent(agentRecord); // Assert Assert.NotNull(agent); Assert.Equal("agent_abc123", agent.Name); } /// /// Verify that AsAIAgent with AgentRecord and clientFactory applies the factory. /// [Fact] public void AsAIAgent_WithAgentRecord_WithClientFactory_AppliesFactoryCorrectly() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); AgentRecord agentRecord = this.CreateTestAgentRecord(); TestChatClient? testChatClient = null; // Act var agent = client.AsAIAgent( agentRecord, clientFactory: (innerClient) => testChatClient = new TestChatClient(innerClient)); // Assert Assert.NotNull(agent); var retrievedTestClient = agent.GetService(); Assert.NotNull(retrievedTestClient); Assert.Same(testChatClient, retrievedTestClient); } #endregion #region AsAIAgent(AIProjectClient, AgentVersion) Tests /// /// Verify that AsAIAgent throws ArgumentNullException when AIProjectClient is null. /// [Fact] public void AsAIAgent_WithAgentVersion_WithNullClient_ThrowsArgumentNullException() { // Arrange AIProjectClient? client = null; AgentVersion agentVersion = this.CreateTestAgentVersion(); // Act & Assert var exception = Assert.Throws(() => client!.AsAIAgent(agentVersion)); Assert.Equal("aiProjectClient", exception.ParamName); } /// /// Verify that AsAIAgent throws ArgumentNullException when agentVersion is null. /// [Fact] public void AsAIAgent_WithAgentVersion_WithNullAgentVersion_ThrowsArgumentNullException() { // Arrange var mockClient = new Mock(); // Act & Assert var exception = Assert.Throws(() => mockClient.Object.AsAIAgent((AgentVersion)null!)); Assert.Equal("agentVersion", exception.ParamName); } /// /// Verify that AsAIAgent with AgentVersion creates a valid agent. /// [Fact] public void AsAIAgent_WithAgentVersion_CreatesValidAgent() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); AgentVersion agentVersion = this.CreateTestAgentVersion(); // Act var agent = client.AsAIAgent(agentVersion); // Assert Assert.NotNull(agent); Assert.Equal("agent_abc123", agent.Name); } /// /// Verify that AsAIAgent with AgentVersion and clientFactory applies the factory. /// [Fact] public void AsAIAgent_WithAgentVersion_WithClientFactory_AppliesFactoryCorrectly() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); AgentVersion agentVersion = this.CreateTestAgentVersion(); TestChatClient? testChatClient = null; // Act var agent = client.AsAIAgent( agentVersion, clientFactory: (innerClient) => testChatClient = new TestChatClient(innerClient)); // Assert Assert.NotNull(agent); var retrievedTestClient = agent.GetService(); Assert.NotNull(retrievedTestClient); Assert.Same(testChatClient, retrievedTestClient); } /// /// Verify that AsAIAgent with requireInvocableTools=true enforces invocable tools. /// [Fact] public void AsAIAgent_WithAgentVersion_WithRequireInvocableToolsTrue_EnforcesInvocableTools() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); AgentVersion agentVersion = this.CreateTestAgentVersion(); var tools = new List { AIFunctionFactory.Create(() => "test", "test_function", "A test function") }; // Act var agent = client.AsAIAgent(agentVersion, tools: tools); // Assert Assert.NotNull(agent); Assert.IsType(agent); } /// /// Verify that AsAIAgent with requireInvocableTools=false allows declarative functions. /// [Fact] public void AsAIAgent_WithAgentVersion_WithRequireInvocableToolsFalse_AllowsDeclarativeFunctions() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); AgentVersion agentVersion = this.CreateTestAgentVersion(); // Act - should not throw even without tools when requireInvocableTools is false var agent = client.AsAIAgent(agentVersion); // Assert Assert.NotNull(agent); Assert.IsType(agent); } #endregion #region GetAIAgentAsync(AIProjectClient, ChatClientAgentOptions) Tests /// /// Verify that GetAIAgentAsync with ChatClientAgentOptions throws ArgumentNullException when client is null. /// [Fact] public async Task GetAIAgentAsync_WithOptions_WithNullClient_ThrowsArgumentNullExceptionAsync() { // Arrange AIProjectClient? client = null; var options = new ChatClientAgentOptions { Name = "test-agent" }; // Act & Assert var exception = await Assert.ThrowsAsync(() => client!.GetAIAgentAsync(options)); Assert.Equal("aiProjectClient", exception.ParamName); } /// /// Verify that GetAIAgentAsync with ChatClientAgentOptions throws ArgumentNullException when options is null. /// [Fact] public async Task GetAIAgentAsync_WithOptions_WithNullOptions_ThrowsArgumentNullExceptionAsync() { // Arrange var mockClient = new Mock(); // Act & Assert var exception = await Assert.ThrowsAsync(() => mockClient.Object.GetAIAgentAsync((ChatClientAgentOptions)null!)); Assert.Equal("options", exception.ParamName); } /// /// Verify that GetAIAgentAsync with ChatClientAgentOptions creates a valid agent. /// [Fact] public async Task GetAIAgentAsync_WithOptions_CreatesValidAgentAsync() { // Arrange AIProjectClient client = this.CreateTestAgentClient(agentName: "test-agent"); var options = new ChatClientAgentOptions { Name = "test-agent" }; // Act var agent = await client.GetAIAgentAsync(options); // Assert Assert.NotNull(agent); Assert.Equal("test-agent", agent.Name); } #endregion #region AsAIAgent(AIProjectClient, string) Tests /// /// Verify that AsAIAgent throws ArgumentNullException when AIProjectClient is null. /// [Fact] public void AsAIAgent_ByName_WithNullClient_ThrowsArgumentNullException() { // Arrange AIProjectClient? client = null; // Act & Assert var exception = Assert.Throws(() => client!.AsAIAgent("test-agent")); Assert.Equal("aiProjectClient", exception.ParamName); } /// /// Verify that AsAIAgent throws ArgumentNullException when name is null. /// [Fact] public void AsAIAgent_ByName_WithNullName_ThrowsArgumentNullException() { // Arrange var mockClient = new Mock(); // Act & Assert var exception = Assert.Throws(() => mockClient.Object.AsAIAgent((string)null!)); Assert.Equal("name", exception.ParamName); } /// /// Verify that AsAIAgent throws ArgumentException when name is empty. /// [Fact] public void AsAIAgent_ByName_WithEmptyName_ThrowsArgumentException() { // Arrange var mockClient = new Mock(); // Act & Assert var exception = Assert.Throws(() => mockClient.Object.AsAIAgent(string.Empty)); Assert.Equal("name", exception.ParamName); } #endregion #region GetAIAgentAsync(AIProjectClient, string) Tests /// /// Verify that GetAIAgentAsync throws ArgumentNullException when AIProjectClient is null. /// [Fact] public async Task GetAIAgentAsync_ByName_WithNullClient_ThrowsArgumentNullExceptionAsync() { // Arrange AIProjectClient? client = null; // Act & Assert var exception = await Assert.ThrowsAsync(() => client!.GetAIAgentAsync("test-agent")); Assert.Equal("aiProjectClient", exception.ParamName); } /// /// Verify that GetAIAgentAsync throws ArgumentNullException when name is null. /// [Fact] public async Task GetAIAgentAsync_ByName_WithNullName_ThrowsArgumentNullExceptionAsync() { // Arrange var mockClient = new Mock(); // Act & Assert var exception = await Assert.ThrowsAsync(() => mockClient.Object.GetAIAgentAsync(name: null!)); Assert.Equal("name", exception.ParamName); } /// /// Verify that GetAIAgentAsync throws InvalidOperationException when agent is not found. /// [Fact] public async Task GetAIAgentAsync_ByName_WithNonExistentAgent_ThrowsInvalidOperationExceptionAsync() { // Arrange var mockAgentOperations = new Mock(); mockAgentOperations .Setup(c => c.GetAgentAsync(It.IsAny(), It.IsAny())) .ReturnsAsync(ClientResult.FromOptionalValue((AgentRecord)null!, new MockPipelineResponse(200, BinaryData.FromString("null")))); var mockClient = new Mock(); mockClient.SetupGet(c => c.Agents).Returns(mockAgentOperations.Object); mockClient.Setup(x => x.GetConnection(It.IsAny())).Returns(new ClientConnection("fake-connection-id", "http://localhost", ClientPipeline.Create(), CredentialKind.None)); // Act & Assert var exception = await Assert.ThrowsAsync(() => mockClient.Object.GetAIAgentAsync("non-existent-agent")); Assert.Contains("not found", exception.Message); } #endregion #region AsAIAgent(AIProjectClient, AgentRecord) with tools Tests /// /// Verify that AsAIAgent with additional tools when the definition has no tools does not throw and results in an agent with no tools. /// [Fact] public void AsAIAgent_WithAgentRecordAndAdditionalTools_WhenDefinitionHasNoTools_ShouldNotThrow() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); AgentRecord agentRecord = this.CreateTestAgentRecord(); var tools = new List { AIFunctionFactory.Create(() => "test", "test_function", "A test function") }; // Act var agent = client.AsAIAgent(agentRecord, tools: tools); // Assert Assert.NotNull(agent); Assert.IsType(agent); var chatClient = agent.GetService(); Assert.NotNull(chatClient); var agentVersion = chatClient.GetService(); Assert.NotNull(agentVersion); var definition = Assert.IsType(agentVersion.Definition); Assert.Empty(definition.Tools); } /// /// Verify that AsAIAgent with null tools works correctly. /// [Fact] public void AsAIAgent_WithAgentRecordAndNullTools_WorksCorrectly() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); AgentRecord agentRecord = this.CreateTestAgentRecord(); // Act var agent = client.AsAIAgent(agentRecord, tools: null); // Assert Assert.NotNull(agent); Assert.Equal("agent_abc123", agent.Name); } #endregion #region GetAIAgentAsync(AIProjectClient, string) with tools Tests /// /// Verify that GetAIAgentAsync with tools parameter creates an agent. /// [Fact] public async Task GetAIAgentAsync_WithNameAndTools_CreatesAgentAsync() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); var tools = new List { AIFunctionFactory.Create(() => "test", "test_function", "A test function") }; // Act var agent = await client.GetAIAgentAsync("test-agent", tools: tools); // Assert Assert.NotNull(agent); Assert.IsType(agent); } /// /// Verify that CreateAIAgentAsync with model and options creates a valid agent. /// [Fact] public async Task CreateAIAgentAsync_WithModelAndOptions_CreatesValidAgentAsync() { // Arrange using var testClient = CreateTestAgentClientWithHandler(agentName: "test-agent", instructions: "Test instructions"); var options = new ChatClientAgentOptions { Name = "test-agent", ChatOptions = new() { Instructions = "Test instructions" } }; // Act var agent = await testClient.Client.CreateAIAgentAsync("test-model", options); // Assert Assert.NotNull(agent); Assert.Equal("test-agent", agent.Name); Assert.Equal("Test instructions", agent.Instructions); } /// /// Verify that CreateAIAgentAsync with model and options and clientFactory applies the factory. /// [Fact] public async Task CreateAIAgentAsync_WithModelAndOptions_WithClientFactory_AppliesFactoryCorrectlyAsync() { // Arrange using var testClient = CreateTestAgentClientWithHandler(agentName: "test-agent", instructions: "Test instructions"); var options = new ChatClientAgentOptions { Name = "test-agent", ChatOptions = new() { Instructions = "Test instructions" } }; TestChatClient? testChatClient = null; // Act var agent = await testClient.Client.CreateAIAgentAsync( "test-model", options, clientFactory: (innerClient) => testChatClient = new TestChatClient(innerClient)); // Assert Assert.NotNull(agent); var retrievedTestClient = agent.GetService(); Assert.NotNull(retrievedTestClient); Assert.Same(testChatClient, retrievedTestClient); } #endregion #region CreateAIAgentAsync(AIProjectClient, string, AgentDefinition) Tests /// /// Verify that CreateAIAgentAsync throws ArgumentNullException when AIProjectClient is null. /// [Fact] public async Task CreateAIAgentAsync_WithAgentDefinition_WithNullClient_ThrowsArgumentNullExceptionAsync() { // Arrange AIProjectClient? client = null; var definition = new PromptAgentDefinition("test-model"); var options = new AgentVersionCreationOptions(definition); // Act & Assert var exception = await Assert.ThrowsAsync(() => client!.CreateAIAgentAsync("agent-name", options)); Assert.Equal("aiProjectClient", exception.ParamName); } /// /// Verify that CreateAIAgentAsync throws ArgumentNullException when creationOptions is null. /// [Fact] public async Task CreateAIAgentAsync_WithAgentDefinition_WithNullDefinition_ThrowsArgumentNullExceptionAsync() { // Arrange var mockClient = new Mock(); // Act & Assert var exception = await Assert.ThrowsAsync(() => mockClient.Object.CreateAIAgentAsync(name: "agent-name", null!)); Assert.Equal("creationOptions", exception.ParamName); } #endregion #region Tool Validation Tests /// /// Verify that CreateAIAgent creates an agent successfully. /// [Fact] public async Task CreateAIAgentAsync_WithDefinition_CreatesAgentSuccessfullyAsync() { // Arrange using var testClient = CreateTestAgentClientWithHandler(); var definition = new PromptAgentDefinition("test-model") { Instructions = "Test" }; var options = new AgentVersionCreationOptions(definition); // Act var agent = await testClient.Client.CreateAIAgentAsync("test-agent", options); // Assert Assert.NotNull(agent); Assert.IsType(agent); } /// /// Verify that CreateAIAgent without tools parameter creates an agent successfully. /// [Fact] public async Task CreateAIAgentAsync_WithoutToolsParameter_CreatesAgentSuccessfullyAsync() { // Arrange var definition = new PromptAgentDefinition("test-model") { Instructions = "Test" }; var definitionResponse = GeneratePromptDefinitionResponse(definition, null); using var testClient = CreateTestAgentClientWithHandler(agentName: "test-agent", agentDefinitionResponse: definitionResponse); var options = new AgentVersionCreationOptions(definition); // Act var agent = await testClient.Client.CreateAIAgentAsync("test-agent", options); // Assert Assert.NotNull(agent); Assert.IsType(agent); } /// /// Verify that CreateAIAgent without tools in definition creates an agent successfully. /// [Fact] public async Task CreateAIAgentAsync_WithoutToolsInDefinition_CreatesAgentSuccessfullyAsync() { // Arrange var definition = new PromptAgentDefinition("test-model") { Instructions = "Test" }; using var testClient = CreateTestAgentClientWithHandler(agentName: "test-agent", agentDefinitionResponse: definition); var options = new AgentVersionCreationOptions(definition); // Act var agent = await testClient.Client.CreateAIAgentAsync("test-agent", options); // Assert Assert.NotNull(agent); Assert.IsType(agent); } /// /// Verify that CreateAIAgent uses tools from the definition when no separate tools parameter is provided. /// [Fact] public async Task CreateAIAgentAsync_WithDefinitionTools_UsesDefinitionToolsAsync() { // Arrange var definition = new PromptAgentDefinition("test-model") { Instructions = "Test" }; // Add a function tool to the definition definition.Tools.Add(ResponseTool.CreateFunctionTool("required_tool", BinaryData.FromString("{}"), strictModeEnabled: false)); // Create a response definition with the same tool var definitionResponse = GeneratePromptDefinitionResponse(definition, definition.Tools.Select(t => t.AsAITool()).ToList()); using var testClient = CreateTestAgentClientWithHandler(agentName: "test-agent", agentDefinitionResponse: definitionResponse); var options = new AgentVersionCreationOptions(definition); // Act var agent = await testClient.Client.CreateAIAgentAsync("test-agent", options); // Assert Assert.NotNull(agent); Assert.IsType(agent); var agentVersion = agent.GetService(); Assert.NotNull(agentVersion); if (agentVersion.Definition is PromptAgentDefinition promptDef) { Assert.NotEmpty(promptDef.Tools); Assert.Single(promptDef.Tools); Assert.Equal("required_tool", (promptDef.Tools.First() as FunctionTool)?.FunctionName); } } /// /// Verify that CreateAIAgent creates an agent successfully when definition has a mix of custom and hosted tools. /// [Fact] public async Task CreateAIAgentAsync_WithMixedToolsInDefinition_CreatesAgentSuccessfullyAsync() { // Arrange var definition = new PromptAgentDefinition("test-model") { Instructions = "Test instructions" }; definition.Tools.Add(ResponseTool.CreateFunctionTool("create_tool", BinaryData.FromString("{}"), strictModeEnabled: false)); definition.Tools.Add(new HostedWebSearchTool().GetService() ?? new HostedWebSearchTool().AsOpenAIResponseTool()); definition.Tools.Add(new HostedFileSearchTool().GetService() ?? new HostedFileSearchTool().AsOpenAIResponseTool()); // Simulate agent definition response with the tools var definitionResponse = new PromptAgentDefinition("test-model") { Instructions = "Test instructions" }; foreach (var tool in definition.Tools) { definitionResponse.Tools.Add(tool); } using var testClient = CreateTestAgentClientWithHandler(agentDefinitionResponse: definitionResponse); var options = new AgentVersionCreationOptions(definition); // Act var agent = await testClient.Client.CreateAIAgentAsync("test-agent", options); // Assert Assert.NotNull(agent); Assert.IsType(agent); var agentVersion = agent.GetService(); Assert.NotNull(agentVersion); if (agentVersion.Definition is PromptAgentDefinition promptDef) { Assert.NotEmpty(promptDef.Tools); Assert.Equal(3, promptDef.Tools.Count); } } /// /// Verify that CreateAIAgentAsync when AI Tools are provided, uses them for the definition via http request. /// [Fact] public async Task CreateAIAgentAsync_WithNameAndAITools_SendsToolDefinitionViaHttpAsync() { // Arrange using var httpHandler = new HttpHandlerAssert(async (request) => { if (request.Content is not null) { var requestBody = await request.Content.ReadAsStringAsync().ConfigureAwait(false); Assert.Contains("required_tool", requestBody); } return new HttpResponseMessage(HttpStatusCode.OK) { Content = new StringContent(TestDataUtil.GetAgentVersionResponseJson(), Encoding.UTF8, "application/json") }; }); #pragma warning disable CA5399 using var httpClient = new HttpClient(httpHandler); #pragma warning restore CA5399 var client = new AIProjectClient(new Uri("https://test.openai.azure.com/"), new FakeAuthenticationTokenProvider(), new() { Transport = new HttpClientPipelineTransport(httpClient) }); // Act var agent = await client.CreateAIAgentAsync( name: "test-agent", model: "test-model", instructions: "Test", tools: [AIFunctionFactory.Create(() => true, "required_tool")]); // Assert Assert.NotNull(agent); Assert.IsType(agent); var agentVersion = agent.GetService(); Assert.NotNull(agentVersion); Assert.IsType(agentVersion.Definition); } /// /// Verify that when providing AITools with AsAIAgent, any additional tool that doesn't match the tools in agent definition are ignored. /// [Fact] public void AsAIAgent_AdditionalAITools_WhenNotInTheDefinitionAreIgnored() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); var agentVersion = this.CreateTestAgentVersion(); // Manually add tools to the definition to simulate inline tools if (agentVersion.Definition is PromptAgentDefinition promptDef) { promptDef.Tools.Add(ResponseTool.CreateFunctionTool("inline_tool", BinaryData.FromString("{}"), strictModeEnabled: false)); } var invocableInlineAITool = AIFunctionFactory.Create(() => "test", "inline_tool", "An invocable AIFunction for the inline function"); var shouldBeIgnoredTool = AIFunctionFactory.Create(() => "test", "additional_tool", "An additional test function that should be ignored"); // Act & Assert var agent = client.AsAIAgent(agentVersion, tools: [invocableInlineAITool, shouldBeIgnoredTool]); Assert.NotNull(agent); var version = agent.GetService(); Assert.NotNull(version); var definition = Assert.IsType(version.Definition); Assert.NotEmpty(definition.Tools); Assert.NotNull(GetAgentChatOptions(agent)); Assert.NotNull(GetAgentChatOptions(agent)!.Tools); Assert.Single(GetAgentChatOptions(agent)!.Tools!); Assert.Equal("inline_tool", (definition.Tools.First() as FunctionTool)?.FunctionName); } #endregion #region Inline Tools vs Parameter Tools Tests /// /// Verify that tools passed as parameters are accepted by AsAIAgent. /// [Fact] public void AsAIAgent_WithParameterTools_AcceptsTools() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); AgentRecord agentRecord = this.CreateTestAgentRecord(); var tools = new List { AIFunctionFactory.Create(() => "tool1", "param_tool_1", "First parameter tool"), AIFunctionFactory.Create(() => "tool2", "param_tool_2", "Second parameter tool") }; // Act var agent = client.AsAIAgent(agentRecord, tools: tools); // Assert Assert.NotNull(agent); Assert.IsType(agent); var chatClient = agent.GetService(); Assert.NotNull(chatClient); var agentVersion = chatClient.GetService(); Assert.NotNull(agentVersion); } /// /// Verify that CreateAIAgent with string parameters and tools creates an agent. /// [Fact] public async Task CreateAIAgentAsync_WithStringParamsAndTools_CreatesAgentAsync() { // Arrange var tools = new List { AIFunctionFactory.Create(() => "weather", "string_param_tool", "Tool from string params") }; var definitionResponse = GeneratePromptDefinitionResponse(new PromptAgentDefinition("test-model") { Instructions = "Test instructions" }, tools); using var testClient = CreateTestAgentClientWithHandler(agentName: "test-agent", agentDefinitionResponse: definitionResponse); // Act var agent = await testClient.Client.CreateAIAgentAsync( "test-agent", "test-model", "Test instructions", tools: tools); // Assert Assert.NotNull(agent); Assert.IsType(agent); var agentVersion = agent.GetService(); Assert.NotNull(agentVersion); if (agentVersion.Definition is PromptAgentDefinition promptDef) { Assert.NotEmpty(promptDef.Tools); Assert.Single(promptDef.Tools); } } /// /// Verify that CreateAIAgentAsync with tools in definition creates an agent. /// [Fact] public async Task CreateAIAgentAsync_WithDefinitionTools_CreatesAgentAsync() { // Arrange using var testClient = CreateTestAgentClientWithHandler(); var definition = new PromptAgentDefinition("test-model") { Instructions = "Test instructions" }; definition.Tools.Add(ResponseTool.CreateFunctionTool("async_tool", BinaryData.FromString("{}"), strictModeEnabled: false)); var options = new AgentVersionCreationOptions(definition); // Act var agent = await testClient.Client.CreateAIAgentAsync("test-agent", options); // Assert Assert.NotNull(agent); Assert.IsType(agent); } /// /// Verify that GetAIAgentAsync with tools parameter creates an agent. /// [Fact] public async Task GetAIAgentAsync_WithToolsParameter_CreatesAgentAsync() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); var tools = new List { AIFunctionFactory.Create(() => "async_get_result", "async_get_tool", "An async get tool") }; // Act var agent = await client.GetAIAgentAsync("test-agent", tools: tools); // Assert Assert.NotNull(agent); Assert.IsType(agent); } #endregion #region Declarative Function Handling Tests /// /// Verifies that CreateAIAgent uses tools from definition when they are ResponseTool instances, resulting in successful agent creation. /// [Fact] public async Task CreateAIAgentAsync_WithResponseToolsInDefinition_CreatesAgentSuccessfullyAsync() { // Arrange var definition = new PromptAgentDefinition("test-model") { Instructions = "Test instructions" }; var fabricToolOptions = new FabricDataAgentToolOptions(); fabricToolOptions.ProjectConnections.Add(new ToolProjectConnection("connection-id")); var sharepointOptions = new SharePointGroundingToolOptions(); sharepointOptions.ProjectConnections.Add(new ToolProjectConnection("connection-id")); var structuredOutputs = new StructuredOutputDefinition("name", "description", new Dictionary { ["schema"] = BinaryData.FromString(AIJsonUtilities.CreateJsonSchema(new { id = "test" }.GetType()).ToString()) }, false); // Add tools to the definition definition.Tools.Add(ResponseTool.CreateFunctionTool("create_tool", BinaryData.FromString("{}"), strictModeEnabled: false)); definition.Tools.Add((ResponseTool)AgentTool.CreateBingCustomSearchTool(new BingCustomSearchToolParameters([new BingCustomSearchConfiguration("connection-id", "instance-name")]))); definition.Tools.Add((ResponseTool)AgentTool.CreateBrowserAutomationTool(new BrowserAutomationToolParameters(new BrowserAutomationToolConnectionParameters("id")))); definition.Tools.Add(AgentTool.CreateA2ATool(new Uri("https://test-uri.microsoft.com"))); definition.Tools.Add((ResponseTool)AgentTool.CreateBingGroundingTool(new BingGroundingSearchToolOptions([new BingGroundingSearchConfiguration("connection-id")]))); definition.Tools.Add((ResponseTool)AgentTool.CreateMicrosoftFabricTool(fabricToolOptions)); definition.Tools.Add((ResponseTool)AgentTool.CreateOpenApiTool(new OpenAPIFunctionDefinition("name", BinaryData.FromString(OpenAPISpec), new OpenAPIAnonymousAuthenticationDetails()))); definition.Tools.Add((ResponseTool)AgentTool.CreateSharepointTool(sharepointOptions)); definition.Tools.Add((ResponseTool)AgentTool.CreateStructuredOutputsTool(structuredOutputs)); definition.Tools.Add((ResponseTool)AgentTool.CreateAzureAISearchTool(new AzureAISearchToolOptions([new AzureAISearchToolIndex() { IndexName = "name" }]))); // Generate agent definition response with the tools var definitionResponse = GeneratePromptDefinitionResponse(definition, definition.Tools.Select(t => t.AsAITool()).ToList()); using var testClient = CreateTestAgentClientWithHandler(agentDefinitionResponse: definitionResponse); var options = new AgentVersionCreationOptions(definition); // Act var agent = await testClient.Client.CreateAIAgentAsync("test-agent", options); // Assert Assert.NotNull(agent); Assert.IsType(agent); var agentVersion = agent.GetService(); Assert.NotNull(agentVersion); if (agentVersion.Definition is PromptAgentDefinition promptDef) { Assert.NotEmpty(promptDef.Tools); Assert.Equal(10, promptDef.Tools.Count); } } /// /// Verify that CreateAIAgentAsync accepts FunctionTools from definition. /// [Fact] public async Task CreateAIAgentAsync_WithFunctionToolsInDefinition_AcceptsDeclarativeFunctionAsync() { // Arrange var functionTool = ResponseTool.CreateFunctionTool( functionName: "get_user_name", functionParameters: BinaryData.FromString("{}"), strictModeEnabled: false, functionDescription: "Gets the user's name, as used for friendly address." ); var definition = new PromptAgentDefinition("test-model") { Instructions = "Test" }; definition.Tools.Add(functionTool); // Generate response with the declarative function var definitionResponse = new PromptAgentDefinition("test-model") { Instructions = "Test" }; definitionResponse.Tools.Add(functionTool); using var testClient = CreateTestAgentClientWithHandler(agentName: "test-agent", agentDefinitionResponse: definitionResponse); var options = new AgentVersionCreationOptions(definition); // Act var agent = await testClient.Client.CreateAIAgentAsync("test-agent", options); // Assert Assert.NotNull(agent); Assert.IsType(agent); } /// /// Verify that CreateAIAgentAsync accepts declarative functions from definition. /// [Fact] public async Task CreateAIAgentAsync_WithDeclarativeFunctionFromDefinition_AcceptsDeclarativeFunctionAsync() { // Arrange using var testClient = CreateTestAgentClientWithHandler(); var definition = new PromptAgentDefinition("test-model") { Instructions = "Test" }; // Create a declarative function (not invocable) using AIFunctionFactory.CreateDeclaration using var doc = JsonDocument.Parse("{}"); var declarativeFunction = AIFunctionFactory.CreateDeclaration("test_function", "A test function", doc.RootElement); // Add to definition definition.Tools.Add(declarativeFunction.AsOpenAIResponseTool() ?? throw new InvalidOperationException()); var options = new AgentVersionCreationOptions(definition); // Act var agent = await testClient.Client.CreateAIAgentAsync("test-agent", options); // Assert Assert.NotNull(agent); Assert.IsType(agent); } /// /// Verify that CreateAIAgentAsync accepts declarative functions from definition. /// [Fact] public async Task CreateAIAgentAsync_WithDeclarativeFunctionInDefinition_AcceptsDeclarativeFunctionAsync() { // Arrange var definition = new PromptAgentDefinition("test-model") { Instructions = "Test" }; // Create a declarative function (not invocable) using AIFunctionFactory.CreateDeclaration using var doc = JsonDocument.Parse("{}"); var declarativeFunction = AIFunctionFactory.CreateDeclaration("test_function", "A test function", doc.RootElement); // Add to definition definition.Tools.Add(declarativeFunction.AsOpenAIResponseTool() ?? throw new InvalidOperationException()); // Generate response with the declarative function var definitionResponse = new PromptAgentDefinition("test-model") { Instructions = "Test" }; definitionResponse.Tools.Add(declarativeFunction.AsOpenAIResponseTool() ?? throw new InvalidOperationException()); using var testClient = CreateTestAgentClientWithHandler(agentName: "test-agent", agentDefinitionResponse: definitionResponse); var options = new AgentVersionCreationOptions(definition); // Act var agent = await testClient.Client.CreateAIAgentAsync("test-agent", options); // Assert Assert.NotNull(agent); Assert.IsType(agent); } #endregion #region Options Generation Validation Tests /// /// Verify that ChatClientAgentOptions are generated correctly without tools. /// [Fact] public async Task CreateAIAgentAsync_GeneratesCorrectChatClientAgentOptionsAsync() { // Arrange var definition = new PromptAgentDefinition("test-model") { Instructions = "Test instructions" }; var definitionResponse = GeneratePromptDefinitionResponse(definition, null); using var testClient = CreateTestAgentClientWithHandler(agentName: "test-agent", agentDefinitionResponse: definitionResponse); var options = new AgentVersionCreationOptions(definition); // Act var agent = await testClient.Client.CreateAIAgentAsync("test-agent", options); // Assert Assert.NotNull(agent); var agentVersion = agent.GetService(); Assert.NotNull(agentVersion); Assert.Equal("test-agent", agentVersion.Name); Assert.Equal("Test instructions", (agentVersion.Definition as PromptAgentDefinition)?.Instructions); } /// /// Verify that GetAIAgentAsync with options preserves custom properties from input options. /// [Fact] public async Task GetAIAgentAsync_WithOptions_PreservesCustomPropertiesAsync() { // Arrange AIProjectClient client = this.CreateTestAgentClient(agentName: "test-agent", instructions: "Custom instructions", description: "Custom description"); var options = new ChatClientAgentOptions { Name = "test-agent", Description = "Custom description", ChatOptions = new ChatOptions { Instructions = "Custom instructions" } }; // Act var agent = await client.GetAIAgentAsync(options); // Assert Assert.NotNull(agent); Assert.Equal("test-agent", agent.Name); Assert.Equal("Custom instructions", agent.Instructions); Assert.Equal("Custom description", agent.Description); } /// /// Verify that CreateAIAgentAsync with options and tools generates correct ChatClientAgentOptions. /// [Fact] public async Task CreateAIAgentAsync_WithOptionsAndTools_GeneratesCorrectOptionsAsync() { // Arrange var tools = new List { AIFunctionFactory.Create(() => "result", "option_tool", "A tool from options") }; var definitionResponse = GeneratePromptDefinitionResponse( new PromptAgentDefinition("test-model") { Instructions = "Test" }, tools); using var testClient = CreateTestAgentClientWithHandler(agentName: "test-agent", agentDefinitionResponse: definitionResponse); var options = new ChatClientAgentOptions { Name = "test-agent", ChatOptions = new ChatOptions { Instructions = "Test", Tools = tools } }; // Act var agent = await testClient.Client.CreateAIAgentAsync("test-model", options); // Assert Assert.NotNull(agent); var agentVersion = agent.GetService(); Assert.NotNull(agentVersion); if (agentVersion.Definition is PromptAgentDefinition promptDef) { Assert.NotEmpty(promptDef.Tools); Assert.Single(promptDef.Tools); } } #endregion #region AgentName Validation Tests /// /// Verify that AsAIAgent throws ArgumentException when agent name is invalid. /// [Theory] [MemberData(nameof(InvalidAgentNameTestData.GetInvalidAgentNames), MemberType = typeof(InvalidAgentNameTestData))] public void AsAIAgent_ByName_WithInvalidAgentName_ThrowsArgumentException(string invalidName) { // Arrange var mockClient = new Mock(); // Act & Assert var exception = Assert.Throws(() => mockClient.Object.AsAIAgent(invalidName)); Assert.Equal("name", exception.ParamName); Assert.Contains("Agent name must be 1-63 characters long", exception.Message); } /// /// Verify that GetAIAgentAsync throws ArgumentException when agent name is invalid. /// [Theory] [MemberData(nameof(InvalidAgentNameTestData.GetInvalidAgentNames), MemberType = typeof(InvalidAgentNameTestData))] public async Task GetAIAgentAsync_ByName_WithInvalidAgentName_ThrowsArgumentExceptionAsync(string invalidName) { // Arrange var mockClient = new Mock(); // Act & Assert var exception = await Assert.ThrowsAsync(() => mockClient.Object.GetAIAgentAsync(invalidName)); Assert.Equal("name", exception.ParamName); Assert.Contains("Agent name must be 1-63 characters long", exception.Message); } /// /// Verify that GetAIAgentAsync with ChatClientAgentOptions throws ArgumentException when agent name is invalid. /// [Theory] [MemberData(nameof(InvalidAgentNameTestData.GetInvalidAgentNames), MemberType = typeof(InvalidAgentNameTestData))] public async Task GetAIAgentAsync_WithOptions_WithInvalidAgentName_ThrowsArgumentExceptionAsync(string invalidName) { // Arrange AIProjectClient client = this.CreateTestAgentClient(); var options = new ChatClientAgentOptions { Name = invalidName }; // Act & Assert var exception = await Assert.ThrowsAsync(() => client.GetAIAgentAsync(options)); Assert.Equal("name", exception.ParamName); Assert.Contains("Agent name must be 1-63 characters long", exception.Message); } /// /// Verify that CreateAIAgentAsync throws ArgumentException when agent name is invalid. /// [Theory] [MemberData(nameof(InvalidAgentNameTestData.GetInvalidAgentNames), MemberType = typeof(InvalidAgentNameTestData))] public async Task CreateAIAgentAsync_WithBasicParams_WithInvalidAgentName_ThrowsArgumentExceptionAsync(string invalidName) { // Arrange var mockClient = new Mock(); // Act & Assert var exception = await Assert.ThrowsAsync(() => mockClient.Object.CreateAIAgentAsync(invalidName, "model", "instructions")); Assert.Equal("name", exception.ParamName); Assert.Contains("Agent name must be 1-63 characters long", exception.Message); } /// /// Verify that CreateAIAgentAsync with AgentVersionCreationOptions throws ArgumentException when agent name is invalid. /// [Theory] [MemberData(nameof(InvalidAgentNameTestData.GetInvalidAgentNames), MemberType = typeof(InvalidAgentNameTestData))] public async Task CreateAIAgentAsync_WithAgentDefinition_WithInvalidAgentName_ThrowsArgumentExceptionAsync(string invalidName) { // Arrange var mockClient = new Mock(); var definition = new PromptAgentDefinition("test-model"); var options = new AgentVersionCreationOptions(definition); // Act & Assert var exception = await Assert.ThrowsAsync(() => mockClient.Object.CreateAIAgentAsync(invalidName, options)); Assert.Equal("name", exception.ParamName); Assert.Contains("Agent name must be 1-63 characters long", exception.Message); } /// /// Verify that CreateAIAgentAsync with ChatClientAgentOptions throws ArgumentException when agent name is invalid. /// [Theory] [MemberData(nameof(InvalidAgentNameTestData.GetInvalidAgentNames), MemberType = typeof(InvalidAgentNameTestData))] public async Task CreateAIAgentAsync_WithOptions_WithInvalidAgentName_ThrowsArgumentExceptionAsync(string invalidName) { // Arrange AIProjectClient client = this.CreateTestAgentClient(); var options = new ChatClientAgentOptions { Name = invalidName }; // Act & Assert var exception = await Assert.ThrowsAsync(() => client.CreateAIAgentAsync("test-model", options)); Assert.Equal("name", exception.ParamName); Assert.Contains("Agent name must be 1-63 characters long", exception.Message); } /// /// Verify that AsAIAgent with AgentReference throws ArgumentException when agent name is invalid. /// [Theory] [MemberData(nameof(InvalidAgentNameTestData.GetInvalidAgentNames), MemberType = typeof(InvalidAgentNameTestData))] public void AsAIAgent_WithAgentReference_WithInvalidAgentName_ThrowsArgumentException(string invalidName) { // Arrange var mockClient = new Mock(); var agentReference = new AgentReference(invalidName, "1"); // Act & Assert var exception = Assert.Throws(() => mockClient.Object.AsAIAgent(agentReference)); Assert.Equal("name", exception.ParamName); Assert.Contains("Agent name must be 1-63 characters long", exception.Message); } #endregion #region AzureAIChatClient Behavior Tests /// /// Verify that the underlying chat client created by extension methods can be wrapped with clientFactory. /// [Fact] public void AsAIAgent_WithClientFactory_WrapsUnderlyingChatClient() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); AgentRecord agentRecord = this.CreateTestAgentRecord(); int factoryCallCount = 0; // Act var agent = client.AsAIAgent( agentRecord, clientFactory: (innerClient) => { factoryCallCount++; return new TestChatClient(innerClient); }); // Assert Assert.NotNull(agent); Assert.Equal(1, factoryCallCount); var wrappedClient = agent.GetService(); Assert.NotNull(wrappedClient); } /// /// Verify that clientFactory is called with the correct underlying chat client. /// [Fact] public async Task CreateAIAgentAsync_WithClientFactory_ReceivesCorrectUnderlyingClientAsync() { // Arrange using var testClient = CreateTestAgentClientWithHandler(); var definition = new PromptAgentDefinition("test-model") { Instructions = "Test" }; IChatClient? receivedClient = null; var options = new AgentVersionCreationOptions(definition); // Act var agent = await testClient.Client.CreateAIAgentAsync( "test-agent", options, clientFactory: (innerClient) => { receivedClient = innerClient; return new TestChatClient(innerClient); }); // Assert Assert.NotNull(agent); Assert.NotNull(receivedClient); var wrappedClient = agent.GetService(); Assert.NotNull(wrappedClient); } /// /// Verify that multiple clientFactory calls create independent wrapped clients. /// [Fact] public void AsAIAgent_MultipleCallsWithClientFactory_CreatesIndependentClients() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); AgentRecord agentRecord = this.CreateTestAgentRecord(); // Act var agent1 = client.AsAIAgent( agentRecord, clientFactory: (innerClient) => new TestChatClient(innerClient)); var agent2 = client.AsAIAgent( agentRecord, clientFactory: (innerClient) => new TestChatClient(innerClient)); // Assert Assert.NotNull(agent1); Assert.NotNull(agent2); var client1 = agent1.GetService(); var client2 = agent2.GetService(); Assert.NotNull(client1); Assert.NotNull(client2); Assert.NotSame(client1, client2); } /// /// Verify that agent created with clientFactory maintains agent properties. /// [Fact] public async Task CreateAIAgentAsync_WithClientFactory_PreservesAgentPropertiesAsync() { // Arrange const string AgentName = "test-agent"; const string Model = "test-model"; const string Instructions = "Test instructions"; using var testClient = CreateTestAgentClientWithHandler(AgentName, Instructions); // Act var agent = await testClient.Client.CreateAIAgentAsync( AgentName, Model, Instructions, clientFactory: (innerClient) => new TestChatClient(innerClient)); // Assert Assert.NotNull(agent); Assert.Equal(AgentName, agent.Name); Assert.Equal(Instructions, agent.Instructions); var wrappedClient = agent.GetService(); Assert.NotNull(wrappedClient); } /// /// Verify that agent created with clientFactory is created successfully. /// [Fact] public async Task CreateAIAgentAsync_WithClientFactory_CreatesAgentSuccessfullyAsync() { // Arrange var definition = new PromptAgentDefinition("test-model") { Instructions = "Test" }; var agentDefinitionResponse = GeneratePromptDefinitionResponse(definition, null); using var testClient = CreateTestAgentClientWithHandler(agentName: "test-agent", agentDefinitionResponse: agentDefinitionResponse); var options = new AgentVersionCreationOptions(definition); // Act var agent = await testClient.Client.CreateAIAgentAsync( "test-agent", options, clientFactory: (innerClient) => new TestChatClient(innerClient)); // Assert Assert.NotNull(agent); var wrappedClient = agent.GetService(); Assert.NotNull(wrappedClient); var agentVersion = agent.GetService(); Assert.NotNull(agentVersion); } #endregion #region User-Agent Header Tests /// /// Verifies that the MEAI user-agent header is added to CreateAIAgentAsync POST requests /// via the protocol method's RequestOptions pipeline policy. /// [Fact] public async Task CreateAIAgentAsync_UserAgentHeaderAddedToRequestsAsync() { using var httpHandler = new HttpHandlerAssert(request => { Assert.Equal("POST", request.Method.Method); // Verify MEAI user-agent header is present on CreateAgentVersion POST request Assert.True(request.Headers.TryGetValues("User-Agent", out var userAgentValues)); Assert.Contains(userAgentValues, v => v.Contains("MEAI")); return new HttpResponseMessage(HttpStatusCode.OK) { Content = new StringContent(TestDataUtil.GetAgentVersionResponseJson(), Encoding.UTF8, "application/json") }; }); #pragma warning disable CA5399 using var httpClient = new HttpClient(httpHandler); #pragma warning restore CA5399 // Arrange var aiProjectClient = new AIProjectClient(new Uri("https://test.openai.azure.com/"), new FakeAuthenticationTokenProvider(), new() { Transport = new HttpClientPipelineTransport(httpClient) }); var agentOptions = new ChatClientAgentOptions { Name = "test-agent" }; // Act var agent = await aiProjectClient.CreateAIAgentAsync("test", agentOptions); // Assert Assert.NotNull(agent); } /// /// Verifies that the user-agent header is added to asynchronous GetAIAgentAsync requests. /// [Fact] public async Task GetAIAgent_UserAgentHeaderAddedToRequestsAsync() { using var httpHandler = new HttpHandlerAssert(request => { Assert.Equal("GET", request.Method.Method); Assert.Contains("MEAI", request.Headers.UserAgent.ToString()); return new HttpResponseMessage(HttpStatusCode.OK) { Content = new StringContent(TestDataUtil.GetAgentResponseJson(), Encoding.UTF8, "application/json") }; }); #pragma warning disable CA5399 using var httpClient = new HttpClient(httpHandler); #pragma warning restore CA5399 // Arrange var aiProjectClient = new AIProjectClient(new Uri("https://test.openai.azure.com/"), new FakeAuthenticationTokenProvider(), new() { Transport = new HttpClientPipelineTransport(httpClient) }); // Act var agent = await aiProjectClient.GetAIAgentAsync("test"); // Assert Assert.NotNull(agent); } #endregion #region GetAIAgent(AIProjectClient, AgentReference) Tests /// /// Verify that AsAIAgent throws ArgumentNullException when AIProjectClient is null. /// [Fact] public void AsAIAgent_WithAgentReference_WithNullClient_ThrowsArgumentNullException() { // Arrange AIProjectClient? client = null; var agentReference = new AgentReference("test-name", "1"); // Act & Assert var exception = Assert.Throws(() => client!.AsAIAgent(agentReference)); Assert.Equal("aiProjectClient", exception.ParamName); } /// /// Verify that AsAIAgent throws ArgumentNullException when agentReference is null. /// [Fact] public void AsAIAgent_WithAgentReference_WithNullAgentReference_ThrowsArgumentNullException() { // Arrange var mockClient = new Mock(); // Act & Assert var exception = Assert.Throws(() => mockClient.Object.AsAIAgent((AgentReference)null!)); Assert.Equal("agentReference", exception.ParamName); } /// /// Verify that AsAIAgent with AgentReference creates a valid agent. /// [Fact] public void AsAIAgent_WithAgentReference_CreatesValidAgent() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); var agentReference = new AgentReference("test-name", "1"); // Act var agent = client.AsAIAgent(agentReference); // Assert Assert.NotNull(agent); Assert.Equal("test-name", agent.Name); Assert.Equal("test-name:1", agent.Id); } /// /// Verify that AsAIAgent with AgentReference and clientFactory applies the factory. /// [Fact] public void AsAIAgent_WithAgentReference_WithClientFactory_AppliesFactoryCorrectly() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); var agentReference = new AgentReference("test-name", "1"); TestChatClient? testChatClient = null; // Act var agent = client.AsAIAgent( agentReference, clientFactory: (innerClient) => testChatClient = new TestChatClient(innerClient)); // Assert Assert.NotNull(agent); var retrievedTestClient = agent.GetService(); Assert.NotNull(retrievedTestClient); Assert.Same(testChatClient, retrievedTestClient); } /// /// Verify that AsAIAgent with AgentReference sets the agent ID correctly. /// [Fact] public void AsAIAgent_WithAgentReference_SetsAgentIdCorrectly() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); var agentReference = new AgentReference("test-name", "2"); // Act var agent = client.AsAIAgent(agentReference); // Assert Assert.NotNull(agent); Assert.Equal("test-name:2", agent.Id); } /// /// Verify that AsAIAgent with AgentReference and tools includes the tools in ChatOptions. /// [Fact] public void AsAIAgent_WithAgentReference_WithTools_IncludesToolsInChatOptions() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); var agentReference = new AgentReference("test-name", "1"); var tools = new List { AIFunctionFactory.Create(() => "test", "test_function", "A test function") }; // Act var agent = client.AsAIAgent(agentReference, tools: tools); // Assert Assert.NotNull(agent); var chatOptions = GetAgentChatOptions(agent); Assert.NotNull(chatOptions); Assert.NotNull(chatOptions.Tools); Assert.Single(chatOptions.Tools); } #endregion #region GetService Tests /// /// Verify that GetService returns AgentRecord for agents created from AgentRecord. /// [Fact] public void GetService_WithAgentRecord_ReturnsAgentRecord() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); AgentRecord agentRecord = this.CreateTestAgentRecord(); // Act var agent = client.AsAIAgent(agentRecord); var retrievedRecord = agent.GetService(); // Assert Assert.NotNull(retrievedRecord); Assert.Equal(agentRecord.Id, retrievedRecord.Id); } /// /// Verify that GetService returns null for AgentRecord when agent is created from AgentReference. /// [Fact] public void GetService_WithAgentReference_ReturnsNullForAgentRecord() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); var agentReference = new AgentReference("test-name", "1"); // Act var agent = client.AsAIAgent(agentReference); var retrievedRecord = agent.GetService(); // Assert Assert.Null(retrievedRecord); } #endregion #region GetService Tests /// /// Verify that GetService returns AgentVersion for agents created from AgentVersion. /// [Fact] public void GetService_WithAgentVersion_ReturnsAgentVersion() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); AgentVersion agentVersion = this.CreateTestAgentVersion(); // Act var agent = client.AsAIAgent(agentVersion); var retrievedVersion = agent.GetService(); // Assert Assert.NotNull(retrievedVersion); Assert.Equal(agentVersion.Id, retrievedVersion.Id); } /// /// Verify that GetService returns null for AgentVersion when agent is created from AgentReference. /// [Fact] public void GetService_WithAgentReference_ReturnsNullForAgentVersion() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); var agentReference = new AgentReference("test-name", "1"); // Act var agent = client.AsAIAgent(agentReference); var retrievedVersion = agent.GetService(); // Assert Assert.Null(retrievedVersion); } #endregion #region ChatClientMetadata Tests /// /// Verify that ChatClientMetadata is properly populated for agents created from AgentRecord. /// [Fact] public void ChatClientMetadata_WithAgentRecord_IsPopulatedCorrectly() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); AgentRecord agentRecord = this.CreateTestAgentRecord(); // Act var agent = client.AsAIAgent(agentRecord); var metadata = agent.GetService(); // Assert Assert.NotNull(metadata); Assert.NotNull(metadata.DefaultModelId); } /// /// Verify that ChatClientMetadata.DefaultModelId is set from PromptAgentDefinition model property. /// [Fact] public void ChatClientMetadata_WithPromptAgentDefinition_SetsDefaultModelIdFromModel() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); var definition = new PromptAgentDefinition("gpt-4-turbo") { Instructions = "Test instructions" }; AgentRecord agentRecord = this.CreateTestAgentRecord(definition); // Act var agent = client.AsAIAgent(agentRecord); var metadata = agent.GetService(); // Assert Assert.NotNull(metadata); // The metadata should contain the model information from the agent definition Assert.NotNull(metadata.DefaultModelId); Assert.Equal("gpt-4-turbo", metadata.DefaultModelId); } /// /// Verify that ChatClientMetadata is properly populated for agents created from AgentVersion. /// [Fact] public void ChatClientMetadata_WithAgentVersion_IsPopulatedCorrectly() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); AgentVersion agentVersion = this.CreateTestAgentVersion(); // Act var agent = client.AsAIAgent(agentVersion); var metadata = agent.GetService(); // Assert Assert.NotNull(metadata); Assert.NotNull(metadata.DefaultModelId); Assert.Equal((agentVersion.Definition as PromptAgentDefinition)!.Model, metadata.DefaultModelId); } #endregion #region AgentReference Availability Tests /// /// Verify that GetService returns AgentReference for agents created from AgentReference. /// [Fact] public void GetService_WithAgentReference_ReturnsAgentReference() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); var agentReference = new AgentReference("test-agent", "1.0"); // Act var agent = client.AsAIAgent(agentReference); var retrievedReference = agent.GetService(); // Assert Assert.NotNull(retrievedReference); Assert.Equal("test-agent", retrievedReference.Name); Assert.Equal("1.0", retrievedReference.Version); } /// /// Verify that GetService returns null for AgentReference when agent is created from AgentRecord. /// [Fact] public void GetService_WithAgentRecord_ReturnsAlsoAgentReference() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); AgentRecord agentRecord = this.CreateTestAgentRecord(); // Act var agent = client.AsAIAgent(agentRecord); var retrievedReference = agent.GetService(); // Assert Assert.NotNull(retrievedReference); Assert.Equal(agentRecord.Name, retrievedReference.Name); } /// /// Verify that GetService returns null for AgentReference when agent is created from AgentVersion. /// [Fact] public void GetService_WithAgentVersion_ReturnsAlsoAgentReference() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); AgentVersion agentVersion = this.CreateTestAgentVersion(); // Act var agent = client.AsAIAgent(agentVersion); var retrievedReference = agent.GetService(); // Assert Assert.NotNull(retrievedReference); Assert.Equal(agentVersion.Name, retrievedReference.Name); } /// /// Verify that GetService returns AgentReference with correct version information. /// [Fact] public void GetService_WithAgentReference_ReturnsCorrectVersionInformation() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); var agentReference = new AgentReference("versioned-agent", "3.5"); // Act var agent = client.AsAIAgent(agentReference); var retrievedReference = agent.GetService(); // Assert Assert.NotNull(retrievedReference); Assert.Equal("versioned-agent", retrievedReference.Name); Assert.Equal("3.5", retrievedReference.Version); } #endregion #region GetAIAgentAsync - Empty Name Tests /// /// Verify that GetAIAgentAsync with ChatClientAgentOptions throws ArgumentException when name is null. /// [Fact] public async Task GetAIAgentAsync_WithOptions_WithNullName_ThrowsArgumentExceptionAsync() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); var options = new ChatClientAgentOptions { Name = null }; // Act & Assert ArgumentException exception = await Assert.ThrowsAsync(() => client.GetAIAgentAsync(options)); Assert.Equal("options", exception.ParamName); Assert.Contains("Agent name must be provided", exception.Message); } /// /// Verify that GetAIAgentAsync with ChatClientAgentOptions throws ArgumentException when name is empty. /// [Fact] public async Task GetAIAgentAsync_WithOptions_WithEmptyName_ThrowsArgumentExceptionAsync() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); var options = new ChatClientAgentOptions { Name = string.Empty }; // Act & Assert ArgumentException exception = await Assert.ThrowsAsync(() => client.GetAIAgentAsync(options)); Assert.Equal("options", exception.ParamName); Assert.Contains("Agent name must be provided", exception.Message); } /// /// Verify that GetAIAgentAsync with ChatClientAgentOptions throws ArgumentException when name is whitespace. /// [Fact] public async Task GetAIAgentAsync_WithOptions_WithWhitespaceName_ThrowsArgumentExceptionAsync() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); var options = new ChatClientAgentOptions { Name = " " }; // Act & Assert ArgumentException exception = await Assert.ThrowsAsync(() => client.GetAIAgentAsync(options)); Assert.Equal("options", exception.ParamName); Assert.Contains("Agent name must be provided", exception.Message); } #endregion #region CreateAIAgentAsync - Empty Name Tests /// /// Verify that CreateAIAgentAsync with model and options throws ArgumentException when name is null. /// [Fact] public async Task CreateAIAgentAsync_WithModelAndOptions_WithNullName_ThrowsArgumentExceptionAsync() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); var options = new ChatClientAgentOptions { Name = null, ChatOptions = new ChatOptions { Instructions = "Test" } }; // Act & Assert ArgumentException exception = await Assert.ThrowsAsync(() => client.CreateAIAgentAsync("test-model", options)); Assert.Equal("options", exception.ParamName); Assert.Contains("Agent name must be provided", exception.Message); } /// /// Verify that CreateAIAgentAsync with model and options throws ArgumentException when name is empty. /// [Fact] public async Task CreateAIAgentAsync_WithModelAndOptions_WithEmptyName_ThrowsArgumentExceptionAsync() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); var options = new ChatClientAgentOptions { Name = string.Empty, ChatOptions = new ChatOptions { Instructions = "Test" } }; // Act & Assert ArgumentException exception = await Assert.ThrowsAsync(() => client.CreateAIAgentAsync("test-model", options)); Assert.Equal("options", exception.ParamName); Assert.Contains("Agent name must be provided", exception.Message); } /// /// Verify that CreateAIAgentAsync with model and options throws ArgumentException when name is whitespace. /// [Fact] public async Task CreateAIAgentAsync_WithModelAndOptions_WithWhitespaceName_ThrowsArgumentExceptionAsync() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); var options = new ChatClientAgentOptions { Name = " ", ChatOptions = new ChatOptions { Instructions = "Test" } }; // Act & Assert ArgumentException exception = await Assert.ThrowsAsync(() => client.CreateAIAgentAsync("test-model", options)); Assert.Equal("options", exception.ParamName); Assert.Contains("Agent name must be provided", exception.Message); } #endregion #region CreateAIAgentAsync - Response Format Tests /// /// Verify that CreateAIAgentAsync with ChatResponseFormatText response format creates agent successfully. /// [Fact] public async Task CreateAIAgentAsync_WithTextResponseFormat_CreatesAgentSuccessfullyAsync() { // Arrange using var testClient = CreateTestAgentClientWithHandler(); var options = new ChatClientAgentOptions { Name = "test-agent", ChatOptions = new ChatOptions { Instructions = "Test", ResponseFormat = ChatResponseFormat.Text } }; // Act ChatClientAgent agent = await testClient.Client.CreateAIAgentAsync("test-model", options); // Assert Assert.NotNull(agent); Assert.IsType(agent); } /// /// Verify that CreateAIAgentAsync with ChatResponseFormatJson response format without schema creates agent successfully. /// [Fact] public async Task CreateAIAgentAsync_WithJsonResponseFormatWithoutSchema_CreatesAgentSuccessfullyAsync() { // Arrange using var testClient = CreateTestAgentClientWithHandler(); var options = new ChatClientAgentOptions { Name = "test-agent", ChatOptions = new ChatOptions { Instructions = "Test", ResponseFormat = ChatResponseFormat.Json } }; // Act ChatClientAgent agent = await testClient.Client.CreateAIAgentAsync("test-model", options); // Assert Assert.NotNull(agent); Assert.IsType(agent); } /// /// Verify that CreateAIAgentAsync with ChatResponseFormatJson with schema creates agent successfully. /// [Fact] public async Task CreateAIAgentAsync_WithJsonResponseFormatWithSchema_CreatesAgentSuccessfullyAsync() { // Arrange using var testClient = CreateTestAgentClientWithHandler(); JsonElement schemaElement = AIJsonUtilities.CreateJsonSchema(typeof(TestSchema)); var jsonFormat = ChatResponseFormat.ForJsonSchema(schemaElement, "test_schema", "A test schema"); var options = new ChatClientAgentOptions { Name = "test-agent", ChatOptions = new ChatOptions { Instructions = "Test", ResponseFormat = jsonFormat } }; // Act ChatClientAgent agent = await testClient.Client.CreateAIAgentAsync("test-model", options); // Assert Assert.NotNull(agent); Assert.IsType(agent); } /// /// Verify that CreateAIAgentAsync with ChatResponseFormatJson with schema and strict mode creates agent successfully. /// [Fact] public async Task CreateAIAgentAsync_WithJsonResponseFormatWithSchemaAndStrictMode_CreatesAgentSuccessfullyAsync() { // Arrange using var testClient = CreateTestAgentClientWithHandler(); JsonElement schemaElement = AIJsonUtilities.CreateJsonSchema(typeof(TestSchema)); var jsonFormat = ChatResponseFormat.ForJsonSchema(schemaElement, "test_schema", "A test schema"); var additionalProps = new AdditionalPropertiesDictionary { ["strictJsonSchema"] = true }; var options = new ChatClientAgentOptions { Name = "test-agent", ChatOptions = new ChatOptions { Instructions = "Test", ResponseFormat = jsonFormat, AdditionalProperties = additionalProps } }; // Act ChatClientAgent agent = await testClient.Client.CreateAIAgentAsync("test-model", options); // Assert Assert.NotNull(agent); Assert.IsType(agent); } /// /// Verify that CreateAIAgentAsync with ChatResponseFormatJson with schema and strict mode false creates agent successfully. /// [Fact] public async Task CreateAIAgentAsync_WithJsonResponseFormatWithSchemaAndStrictModeFalse_CreatesAgentSuccessfullyAsync() { // Arrange using var testClient = CreateTestAgentClientWithHandler(); JsonElement schemaElement = AIJsonUtilities.CreateJsonSchema(typeof(TestSchema)); var jsonFormat = ChatResponseFormat.ForJsonSchema(schemaElement, "test_schema", "A test schema"); var additionalProps = new AdditionalPropertiesDictionary { ["strictJsonSchema"] = false }; var options = new ChatClientAgentOptions { Name = "test-agent", ChatOptions = new ChatOptions { Instructions = "Test", ResponseFormat = jsonFormat, AdditionalProperties = additionalProps } }; // Act ChatClientAgent agent = await testClient.Client.CreateAIAgentAsync("test-model", options); // Assert Assert.NotNull(agent); Assert.IsType(agent); } #endregion #region CreateAIAgentAsync - RawRepresentationFactory Tests /// /// Verify that CreateAIAgentAsync with RawRepresentationFactory that returns CreateResponseOptions creates agent successfully. /// [Fact] public async Task CreateAIAgentAsync_WithRawRepresentationFactory_CreatesAgentSuccessfullyAsync() { // Arrange using var testClient = CreateTestAgentClientWithHandler(); var options = new ChatClientAgentOptions { Name = "test-agent", ChatOptions = new ChatOptions { Instructions = "Test", RawRepresentationFactory = _ => new CreateResponseOptions() } }; // Act ChatClientAgent agent = await testClient.Client.CreateAIAgentAsync("test-model", options); // Assert Assert.NotNull(agent); Assert.IsType(agent); } /// /// Verify that CreateAIAgentAsync with RawRepresentationFactory that returns null does not fail. /// [Fact] public async Task CreateAIAgentAsync_WithRawRepresentationFactoryReturningNull_CreatesAgentSuccessfullyAsync() { // Arrange using var testClient = CreateTestAgentClientWithHandler(); var options = new ChatClientAgentOptions { Name = "test-agent", ChatOptions = new ChatOptions { Instructions = "Test", RawRepresentationFactory = _ => null } }; // Act ChatClientAgent agent = await testClient.Client.CreateAIAgentAsync("test-model", options); // Assert Assert.NotNull(agent); Assert.IsType(agent); } /// /// Verify that CreateAIAgentAsync with RawRepresentationFactory that returns non-CreateResponseOptions does not fail. /// [Fact] public async Task CreateAIAgentAsync_WithRawRepresentationFactoryReturningNonCreateResponseOptions_CreatesAgentSuccessfullyAsync() { // Arrange using var testClient = CreateTestAgentClientWithHandler(); var options = new ChatClientAgentOptions { Name = "test-agent", ChatOptions = new ChatOptions { Instructions = "Test", RawRepresentationFactory = _ => new object() } }; // Act ChatClientAgent agent = await testClient.Client.CreateAIAgentAsync("test-model", options); // Assert Assert.NotNull(agent); Assert.IsType(agent); } #endregion #region CreateAIAgentAsync - Description Tests /// /// Verify that CreateAIAgentAsync with description sets description on the agent. /// [Fact] public async Task CreateAIAgentAsync_WithDescription_SetsDescriptionAsync() { // Arrange using var testClient = CreateTestAgentClientWithHandler(description: "Test description"); var options = new ChatClientAgentOptions { Name = "test-agent", Description = "Test description", ChatOptions = new ChatOptions { Instructions = "Test" } }; // Act ChatClientAgent agent = await testClient.Client.CreateAIAgentAsync("test-model", options); // Assert Assert.NotNull(agent); Assert.Equal("Test description", agent.Description); } /// /// Verify that CreateAIAgentAsync without description still creates agent successfully. /// [Fact] public async Task CreateAIAgentAsync_WithoutDescription_CreatesAgentSuccessfullyAsync() { // Arrange using var testClient = CreateTestAgentClientWithHandler(); var options = new ChatClientAgentOptions { Name = "test-agent", ChatOptions = new ChatOptions { Instructions = "Test" } }; // Act ChatClientAgent agent = await testClient.Client.CreateAIAgentAsync("test-model", options); // Assert Assert.NotNull(agent); } #endregion #region CreateChatClientAgentOptions - Missing Tools Tests /// /// Verify that when invocable tools are required but not provided, an exception is thrown. /// [Fact] public async Task GetAIAgentAsync_WithToolsRequiredButNotProvided_ThrowsArgumentExceptionAsync() { // Arrange PromptAgentDefinition definition = new("test-model") { Instructions = "Test" }; definition.Tools.Add(ResponseTool.CreateFunctionTool("required_function", BinaryData.FromString("{}"), strictModeEnabled: false)); AIProjectClient client = this.CreateTestAgentClient(agentDefinitionResponse: definition); var options = new ChatClientAgentOptions { Name = "test-agent", ChatOptions = new ChatOptions { Instructions = "Test" } }; // Act & Assert ArgumentException exception = await Assert.ThrowsAsync(() => client.GetAIAgentAsync(options)); Assert.Contains("in-process tools must be provided", exception.Message); } /// /// Verify that when specific invocable tools are required but wrong ones are provided, InvalidOperationException is thrown. /// [Fact] public async Task GetAIAgentAsync_WithWrongToolsProvided_ThrowsInvalidOperationExceptionAsync() { // Arrange PromptAgentDefinition definition = new("test-model") { Instructions = "Test" }; definition.Tools.Add(ResponseTool.CreateFunctionTool("required_function", BinaryData.FromString("{}"), strictModeEnabled: false)); AIProjectClient client = this.CreateTestAgentClient(agentDefinitionResponse: definition); var tools = new List { AIFunctionFactory.Create(() => "test", "wrong_function", "Wrong function") }; var options = new ChatClientAgentOptions { Name = "test-agent", ChatOptions = new ChatOptions { Instructions = "Test", Tools = tools } }; // Act & Assert InvalidOperationException exception = await Assert.ThrowsAsync(() => client.GetAIAgentAsync(options)); Assert.Contains("required_function", exception.Message); Assert.Contains("were not provided", exception.Message); } /// /// Verify that when tools are provided that match the definition, agent is created successfully. /// [Fact] public async Task GetAIAgentAsync_WithMatchingToolsProvided_CreatesAgentSuccessfullyAsync() { // Arrange PromptAgentDefinition definition = new("test-model") { Instructions = "Test" }; definition.Tools.Add(ResponseTool.CreateFunctionTool("required_function", BinaryData.FromString("{}"), strictModeEnabled: false)); AIProjectClient client = this.CreateTestAgentClient(agentDefinitionResponse: definition); var tools = new List { AIFunctionFactory.Create(() => "test", "required_function", "Required function") }; var options = new ChatClientAgentOptions { Name = "test-agent", ChatOptions = new ChatOptions { Instructions = "Test", Tools = tools } }; // Act ChatClientAgent agent = await client.GetAIAgentAsync(options); // Assert Assert.NotNull(agent); Assert.IsType(agent); } #endregion #region CreateChatClientAgentOptions - Options Preservation Tests /// /// Verify that CreateChatClientAgentOptions preserves AIContextProviders. /// [Fact] public async Task GetAIAgentAsync_WithAIContextProviders_PreservesProviderAsync() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); var options = new ChatClientAgentOptions { Name = "test-agent", ChatOptions = new ChatOptions { Instructions = "Test" }, AIContextProviders = [new TestAIContextProvider()] }; // Act ChatClientAgent agent = await client.GetAIAgentAsync(options); // Assert Assert.NotNull(agent); } /// /// Verify that CreateChatClientAgentOptions preserves ChatHistoryProvider. /// [Fact] public async Task GetAIAgentAsync_WithChatHistoryProvider_PreservesProviderAsync() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); var options = new ChatClientAgentOptions { Name = "test-agent", ChatOptions = new ChatOptions { Instructions = "Test" }, ChatHistoryProvider = new TestChatHistoryProvider() }; // Act ChatClientAgent agent = await client.GetAIAgentAsync(options); // Assert Assert.NotNull(agent); } /// /// Verify that CreateChatClientAgentOptions preserves UseProvidedChatClientAsIs. /// [Fact] public async Task GetAIAgentAsync_WithUseProvidedChatClientAsIs_PreservesSettingAsync() { // Arrange AIProjectClient client = this.CreateTestAgentClient(); var options = new ChatClientAgentOptions { Name = "test-agent", ChatOptions = new ChatOptions { Instructions = "Test" }, UseProvidedChatClientAsIs = true }; // Act ChatClientAgent agent = await client.GetAIAgentAsync(options); // Assert Assert.NotNull(agent); } /// /// Verify that GetAIAgentAsync with UseProvidedChatClientAsIs=true skips tool validation /// and does not throw even when server-side function tools exist without matching invocable tools. /// [Fact] public async Task GetAIAgentAsync_WithUseProvidedChatClientAsIs_SkipsToolValidationAsync() { // Arrange PromptAgentDefinition definition = new("test-model") { Instructions = "Test" }; definition.Tools.Add(ResponseTool.CreateFunctionTool("required_function", BinaryData.FromString("{}"), strictModeEnabled: false)); AIProjectClient client = this.CreateTestAgentClient(agentDefinitionResponse: definition); var options = new ChatClientAgentOptions { Name = "test-agent", ChatOptions = new ChatOptions { Instructions = "Test" }, UseProvidedChatClientAsIs = true }; // Act - should not throw even without tools when UseProvidedChatClientAsIs is true ChatClientAgent agent = await client.GetAIAgentAsync(options); // Assert Assert.NotNull(agent); } /// /// Verify that GetAIAgentAsync with UseProvidedChatClientAsIs=true still matches provided AIFunction tools /// to server-side function definitions, instead of falling back to the ResponseToolAITool wrapper. /// [Fact] public async Task GetAIAgentAsync_WithUseProvidedChatClientAsIs_PreservesProvidedToolsAsync() { // Arrange PromptAgentDefinition definition = new("test-model") { Instructions = "Test" }; definition.Tools.Add(ResponseTool.CreateFunctionTool("my_function", BinaryData.FromString("{}"), strictModeEnabled: false)); AIProjectClient client = this.CreateTestAgentClient(agentDefinitionResponse: definition); var providedTool = AIFunctionFactory.Create(() => "test", "my_function", "A test function"); var options = new ChatClientAgentOptions { Name = "test-agent", UseProvidedChatClientAsIs = true, ChatOptions = new ChatOptions { Instructions = "Test", Tools = [providedTool] }, }; // Act - UseProvidedChatClientAsIs is true, but provided AIFunctions should still be matched and preserved ChatClientAgent agent = await client.GetAIAgentAsync(options); // Assert Assert.NotNull(agent); // Verify the provided AIFunction was matched and preserved in ChatOptions.Tools (not replaced by AsAITool wrapper) var chatOptions = agent.GetService(); Assert.NotNull(chatOptions); Assert.NotNull(chatOptions!.Tools); Assert.Contains(chatOptions.Tools, t => t is AIFunction af && af.Name == "my_function"); } #endregion #region Empty Version and ID Handling Tests /// /// Verify that GetAIAgentAsync handles an agent with empty version by using "latest" as fallback. /// [Fact] public async Task GetAIAgentAsync_WithEmptyVersion_CreatesAgentSuccessfullyAsync() { // Arrange AIProjectClient client = this.CreateTestAgentClientWithEmptyVersion(); var options = new ChatClientAgentOptions { Name = "test-agent", ChatOptions = new ChatOptions { Instructions = "Test" } }; // Act ChatClientAgent agent = await client.GetAIAgentAsync(options); // Assert Assert.NotNull(agent); Assert.IsType(agent); // Verify the agent ID is generated from server-returned name ("agent_abc123") and "latest" Assert.Equal("agent_abc123:latest", agent.Id); } /// /// Verify that AsAIAgent with AgentRecord handles empty version by using "latest" as fallback. /// [Fact] public void AsAIAgent_WithAgentRecordEmptyVersion_CreatesAgentWithGeneratedId() { // Arrange AIProjectClient client = this.CreateTestAgentClientWithEmptyVersion(); AgentRecord agentRecord = this.CreateTestAgentRecordWithEmptyVersion(); // Act var agent = client.AsAIAgent(agentRecord); // Assert Assert.NotNull(agent); // Verify the agent ID is generated from agent record name ("agent_abc123") and "latest" Assert.Equal("agent_abc123:latest", agent.Id); } /// /// Verify that AsAIAgent with AgentVersion handles empty version by using "latest" as fallback. /// [Fact] public void AsAIAgent_WithAgentVersionEmptyVersion_CreatesAgentWithGeneratedId() { // Arrange AIProjectClient client = this.CreateTestAgentClientWithEmptyVersion(); AgentVersion agentVersion = this.CreateTestAgentVersionWithEmptyVersion(); // Act var agent = client.AsAIAgent(agentVersion); // Assert Assert.NotNull(agent); // Verify the agent ID is generated from agent version name ("agent_abc123") and "latest" Assert.Equal("agent_abc123:latest", agent.Id); } /// /// Verify that GetAIAgentAsync handles an agent with whitespace-only version by using "latest" as fallback. /// [Fact] public async Task GetAIAgentAsync_WithWhitespaceVersion_CreatesAgentSuccessfullyAsync() { // Arrange AIProjectClient client = this.CreateTestAgentClientWithWhitespaceVersion(); var options = new ChatClientAgentOptions { Name = "test-agent", ChatOptions = new ChatOptions { Instructions = "Test" } }; // Act ChatClientAgent agent = await client.GetAIAgentAsync(options); // Assert Assert.NotNull(agent); Assert.IsType(agent); // Verify the agent ID is generated from server-returned name ("agent_abc123") and "latest" Assert.Equal("agent_abc123:latest", agent.Id); } /// /// Verify that AsAIAgent with AgentRecord handles whitespace-only version by using "latest" as fallback. /// [Fact] public void AsAIAgent_WithAgentRecordWhitespaceVersion_CreatesAgentWithGeneratedId() { // Arrange AIProjectClient client = this.CreateTestAgentClientWithWhitespaceVersion(); AgentRecord agentRecord = this.CreateTestAgentRecordWithWhitespaceVersion(); // Act var agent = client.AsAIAgent(agentRecord); // Assert Assert.NotNull(agent); // Verify the agent ID is generated from agent record name ("agent_abc123") and "latest" Assert.Equal("agent_abc123:latest", agent.Id); } /// /// Verify that AsAIAgent with AgentVersion handles whitespace-only version by using "latest" as fallback. /// [Fact] public void AsAIAgent_WithAgentVersionWhitespaceVersion_CreatesAgentWithGeneratedId() { // Arrange AIProjectClient client = this.CreateTestAgentClientWithWhitespaceVersion(); AgentVersion agentVersion = this.CreateTestAgentVersionWithWhitespaceVersion(); // Act var agent = client.AsAIAgent(agentVersion); // Assert Assert.NotNull(agent); // Verify the agent ID is generated from agent version name ("agent_abc123") and "latest" Assert.Equal("agent_abc123:latest", agent.Id); } #endregion #region ApplyToolsToAgentDefinition Tests /// /// Verify that CreateAIAgentAsync with non-PromptAgentDefinition and tools throws ArgumentException. /// [Fact] public async Task CreateAIAgentAsync_WithNonPromptAgentDefinitionAndTools_ThrowsArgumentExceptionAsync() { // Arrange var tools = new List { AIFunctionFactory.Create(() => "test", "test_function", "A test function") }; using HttpHandlerAssert httpHandler = new(_ => new HttpResponseMessage(HttpStatusCode.OK) { Content = new StringContent(TestDataUtil.GetAgentVersionResponseJson(), Encoding.UTF8, "application/json") }); #pragma warning disable CA5399 using HttpClient httpClient = new(httpHandler); #pragma warning restore CA5399 AIProjectClient client = new(new Uri("https://test.openai.azure.com/"), new FakeAuthenticationTokenProvider(), new() { Transport = new HttpClientPipelineTransport(httpClient) }); // Create a mock AgentDefinition that is not PromptAgentDefinition // Since we can't easily create a non-PromptAgentDefinition in the public API, we test this path via the CreateAIAgentAsync that builds a PromptAgentDefinition // The ApplyToolsToAgentDefinition is only called when tools.Count > 0, and we provide tools // But PromptAgentDefinition is always created by CreateAIAgentAsync(name, model, instructions, tools) // So this path is hard to hit without mocking. Let's test the declarative function rejection instead. var declarativeFunction = AIFunctionFactory.CreateDeclaration("test_function", "A test function", JsonDocument.Parse("{}").RootElement); // Act & Assert InvalidOperationException exception = await Assert.ThrowsAsync(() => client.CreateAIAgentAsync( name: "test-agent", model: "test-model", instructions: "Test", tools: [declarativeFunction])); Assert.Contains("invokable AIFunctions", exception.Message); } /// /// Verify that CreateAIAgentAsync with AIFunctionDeclaration tools throws InvalidOperationException. /// [Fact] public async Task CreateAIAgentAsync_WithAIFunctionDeclarationTool_ThrowsInvalidOperationExceptionAsync() { // Arrange using var doc = JsonDocument.Parse("{}"); var declarativeFunction = AIFunctionFactory.CreateDeclaration("test_function", "A test function", doc.RootElement); using HttpHandlerAssert httpHandler = new(_ => new HttpResponseMessage(HttpStatusCode.OK) { Content = new StringContent(TestDataUtil.GetAgentVersionResponseJson(), Encoding.UTF8, "application/json") }); #pragma warning disable CA5399 using HttpClient httpClient = new(httpHandler); #pragma warning restore CA5399 AIProjectClient client = new(new Uri("https://test.openai.azure.com/"), new FakeAuthenticationTokenProvider(), new() { Transport = new HttpClientPipelineTransport(httpClient) }); // Act & Assert InvalidOperationException exception = await Assert.ThrowsAsync(() => client.CreateAIAgentAsync( name: "test-agent", model: "test-model", instructions: "Test", tools: [declarativeFunction])); Assert.Contains("invokable AIFunctions", exception.Message); } /// /// Verify that CreateAIAgentAsync with ResponseTool converted via AsAITool works. /// [Fact] public async Task CreateAIAgentAsync_WithResponseToolAsAITool_CreatesAgentSuccessfullyAsync() { // Arrange ResponseTool responseTool = ResponseTool.CreateFunctionTool("response_tool", BinaryData.FromString("{}"), strictModeEnabled: false); AITool convertedTool = responseTool.AsAITool(); // Create a definition with the function tool already in it PromptAgentDefinition definition = new("test-model") { Instructions = "Test" }; definition.Tools.Add(responseTool); AIProjectClient client = this.CreateTestAgentClient(agentDefinitionResponse: definition); // Matching invokable tool must be provided var invokableTool = AIFunctionFactory.Create(() => "test", "response_tool", "Invokable version of the tool"); var options = new ChatClientAgentOptions { Name = "test-agent", ChatOptions = new ChatOptions { Instructions = "Test", Tools = [invokableTool] } }; // Act ChatClientAgent agent = await client.GetAIAgentAsync(options); // Assert Assert.NotNull(agent); Assert.IsType(agent); } /// /// Verify that CreateAIAgentAsync with hosted tool types works correctly. /// [Fact] public async Task CreateAIAgentAsync_WithHostedToolTypes_CreatesAgentSuccessfullyAsync() { // Arrange using var testClient = CreateTestAgentClientWithHandler(); var webSearchTool = new HostedWebSearchTool(); var options = new ChatClientAgentOptions { Name = "test-agent", ChatOptions = new ChatOptions { Instructions = "Test", Tools = [webSearchTool] } }; // Act ChatClientAgent agent = await testClient.Client.CreateAIAgentAsync("test-model", options); // Assert Assert.NotNull(agent); Assert.IsType(agent); } /// /// Verify that when the server returns tools but matching tools are provided, the agent is created. /// [Fact] public async Task GetAIAgentAsync_WithServerDefinedToolsAndMatchingProvidedTools_CreatesAgentAsync() { // Arrange PromptAgentDefinition definition = new("test-model") { Instructions = "Test" }; // Add multiple function tools definition.Tools.Add(ResponseTool.CreateFunctionTool("tool_one", BinaryData.FromString("{}"), strictModeEnabled: false)); definition.Tools.Add(ResponseTool.CreateFunctionTool("tool_two", BinaryData.FromString("{}"), strictModeEnabled: false)); AIProjectClient client = this.CreateTestAgentClient(agentDefinitionResponse: definition); var tools = new List { AIFunctionFactory.Create(() => "one", "tool_one", "Tool one"), AIFunctionFactory.Create(() => "two", "tool_two", "Tool two") }; var options = new ChatClientAgentOptions { Name = "test-agent", ChatOptions = new ChatOptions { Instructions = "Test", Tools = tools } }; // Act ChatClientAgent agent = await client.GetAIAgentAsync(options); // Assert Assert.NotNull(agent); Assert.IsType(agent); } /// /// Verify that when the server returns mixed tools (function and hosted), the agent handles them correctly. /// [Fact] public async Task GetAIAgentAsync_WithMixedServerTools_MatchesFunctionToolsOnlyAsync() { // Arrange PromptAgentDefinition definition = new("test-model") { Instructions = "Test" }; // Add a function tool definition.Tools.Add(ResponseTool.CreateFunctionTool("function_tool", BinaryData.FromString("{}"), strictModeEnabled: false)); // Add a hosted tool definition.Tools.Add(new HostedWebSearchTool().GetService() ?? new HostedWebSearchTool().AsOpenAIResponseTool()); AIProjectClient client = this.CreateTestAgentClient(agentDefinitionResponse: definition); var tools = new List { AIFunctionFactory.Create(() => "result", "function_tool", "The function tool") }; var options = new ChatClientAgentOptions { Name = "test-agent", ChatOptions = new ChatOptions { Instructions = "Test", Tools = tools } }; // Act ChatClientAgent agent = await client.GetAIAgentAsync(options); // Assert Assert.NotNull(agent); Assert.IsType(agent); } /// /// Verify that when partial tools are provided (some missing), InvalidOperationException is thrown listing missing tools. /// [Fact] public async Task GetAIAgentAsync_WithPartialToolsProvided_ThrowsInvalidOperationWithMissingToolNamesAsync() { // Arrange PromptAgentDefinition definition = new("test-model") { Instructions = "Test" }; definition.Tools.Add(ResponseTool.CreateFunctionTool("provided_tool", BinaryData.FromString("{}"), strictModeEnabled: false)); definition.Tools.Add(ResponseTool.CreateFunctionTool("missing_tool", BinaryData.FromString("{}"), strictModeEnabled: false)); AIProjectClient client = this.CreateTestAgentClient(agentDefinitionResponse: definition); var tools = new List { // Only providing one of two required tools AIFunctionFactory.Create(() => "result", "provided_tool", "The provided tool") }; var options = new ChatClientAgentOptions { Name = "test-agent", ChatOptions = new ChatOptions { Instructions = "Test", Tools = tools } }; // Act & Assert InvalidOperationException exception = await Assert.ThrowsAsync(() => client.GetAIAgentAsync(options)); Assert.Contains("missing_tool", exception.Message); Assert.DoesNotContain("provided_tool", exception.Message); } /// /// Verify that when AsAIAgent is called without requireInvocableTools, hosted tools are correctly added. /// [Fact] public void AsAIAgent_WithServerHostedTools_AddsToolsToAgentOptions() { // Arrange PromptAgentDefinition definition = new("test-model") { Instructions = "Test" }; definition.Tools.Add(new HostedWebSearchTool().GetService() ?? new HostedWebSearchTool().AsOpenAIResponseTool()); AIProjectClient client = this.CreateTestAgentClient(); AgentVersion agentVersion = ModelReaderWriter.Read(BinaryData.FromString(TestDataUtil.GetAgentVersionResponseJson(agentDefinition: definition)))!; // Act - no tools provided, but requireInvocableTools is false when no tools param is passed ChatClientAgent agent = client.AsAIAgent(agentVersion); // Assert Assert.NotNull(agent); Assert.IsType(agent); } #endregion #region Helper Methods /// /// Creates a test AIProjectClient with fake behavior. /// private FakeAgentClient CreateTestAgentClient(string? agentName = null, string? instructions = null, string? description = null, AgentDefinition? agentDefinitionResponse = null) { return new FakeAgentClient(agentName, instructions, description, agentDefinitionResponse); } /// /// Creates a test AIProjectClient backed by an HTTP handler that returns canned responses. /// Used for tests that exercise the protocol-method code path (CreateAgentVersion). /// The returned client must be disposed to clean up the underlying HttpClient/handler. /// private static DisposableTestClient CreateTestAgentClientWithHandler(string? agentName = null, string? instructions = null, string? description = null, AgentDefinition? agentDefinitionResponse = null) { var responseJson = TestDataUtil.GetAgentVersionResponseJson(agentName, agentDefinitionResponse, instructions, description); var httpHandler = new HttpHandlerAssert(_ => new HttpResponseMessage(HttpStatusCode.OK) { Content = new StringContent(responseJson, Encoding.UTF8, "application/json") }); #pragma warning disable CA5399 var httpClient = new HttpClient(httpHandler); #pragma warning restore CA5399 var client = new AIProjectClient( new Uri("https://test.openai.azure.com/"), new FakeAuthenticationTokenProvider(), new() { Transport = new HttpClientPipelineTransport(httpClient) }); return new DisposableTestClient(client, httpClient, httpHandler); } /// /// Wraps an AIProjectClient and its disposable dependencies for deterministic cleanup. /// private sealed class DisposableTestClient : IDisposable { private readonly HttpClient _httpClient; private readonly HttpHandlerAssert _httpHandler; public DisposableTestClient(AIProjectClient client, HttpClient httpClient, HttpHandlerAssert httpHandler) { this.Client = client; this._httpClient = httpClient; this._httpHandler = httpHandler; } public AIProjectClient Client { get; } public void Dispose() { this._httpClient.Dispose(); this._httpHandler.Dispose(); } } /// /// Creates a test AgentRecord for testing. /// private AgentRecord CreateTestAgentRecord(AgentDefinition? agentDefinition = null) { return ModelReaderWriter.Read(BinaryData.FromString(TestDataUtil.GetAgentResponseJson(agentDefinition: agentDefinition)))!; } /// /// Creates a test AIProjectClient with empty version fields for testing hosted MCP agents. /// private FakeAgentClient CreateTestAgentClientWithEmptyVersion(string? agentName = null, string? instructions = null, string? description = null, AgentDefinition? agentDefinitionResponse = null) { return new FakeAgentClient(agentName, instructions, description, agentDefinitionResponse, useEmptyVersion: true); } /// /// Creates a test AgentRecord with empty version for testing hosted MCP agents. /// private AgentRecord CreateTestAgentRecordWithEmptyVersion(AgentDefinition? agentDefinition = null) { return ModelReaderWriter.Read(BinaryData.FromString(TestDataUtil.GetAgentResponseJsonWithEmptyVersion(agentDefinition: agentDefinition)))!; } /// /// Creates a test AgentVersion with empty version for testing hosted MCP agents. /// private AgentVersion CreateTestAgentVersionWithEmptyVersion() { return ModelReaderWriter.Read(BinaryData.FromString(TestDataUtil.GetAgentVersionResponseJsonWithEmptyVersion()))!; } /// /// Creates a test AIProjectClient with whitespace-only version fields for testing hosted MCP agents. /// private FakeAgentClient CreateTestAgentClientWithWhitespaceVersion(string? agentName = null, string? instructions = null, string? description = null, AgentDefinition? agentDefinitionResponse = null) { return new FakeAgentClient(agentName, instructions, description, agentDefinitionResponse, versionMode: VersionMode.Whitespace); } /// /// Creates a test AgentRecord with whitespace-only version for testing hosted MCP agents. /// private AgentRecord CreateTestAgentRecordWithWhitespaceVersion(AgentDefinition? agentDefinition = null) { return ModelReaderWriter.Read(BinaryData.FromString(TestDataUtil.GetAgentResponseJsonWithWhitespaceVersion(agentDefinition: agentDefinition)))!; } /// /// Creates a test AgentVersion with whitespace-only version for testing hosted MCP agents. /// private AgentVersion CreateTestAgentVersionWithWhitespaceVersion() { return ModelReaderWriter.Read(BinaryData.FromString(TestDataUtil.GetAgentVersionResponseJsonWithWhitespaceVersion()))!; } private const string OpenAPISpec = """ { "openapi": "3.0.3", "info": { "title": "Tiny Test API", "version": "1.0.0" }, "paths": { "/ping": { "get": { "summary": "Health check", "operationId": "getPing", "responses": { "200": { "description": "OK", "content": { "application/json": { "schema": { "type": "object", "properties": { "message": { "type": "string" } }, "required": ["message"] }, "example": { "message": "pong" } } } } } } } } } """; /// /// Creates a test AgentVersion for testing. /// private AgentVersion CreateTestAgentVersion() { return ModelReaderWriter.Read(BinaryData.FromString(TestDataUtil.GetAgentVersionResponseJson()))!; } /// /// Specifies the version mode for test data generation. /// private enum VersionMode { Normal, Empty, Whitespace } /// /// Fake AIProjectClient for testing. /// private sealed class FakeAgentClient : AIProjectClient { public FakeAgentClient(string? agentName = null, string? instructions = null, string? description = null, AgentDefinition? agentDefinitionResponse = null, bool useEmptyVersion = false, VersionMode versionMode = VersionMode.Normal) { // Handle backward compatibility with bool parameter var effectiveVersionMode = useEmptyVersion ? VersionMode.Empty : versionMode; this.Agents = new FakeAIProjectAgentsOperations(agentName, instructions, description, agentDefinitionResponse, effectiveVersionMode); } public override ClientConnection GetConnection(string connectionId) { return new ClientConnection("fake-connection-id", "http://localhost", ClientPipeline.Create(), CredentialKind.None); } public override AIProjectAgentsOperations Agents { get; } private sealed class FakeAIProjectAgentsOperations : AIProjectAgentsOperations { private readonly string? _agentName; private readonly string? _instructions; private readonly string? _description; private readonly AgentDefinition? _agentDefinition; private readonly VersionMode _versionMode; public FakeAIProjectAgentsOperations(string? agentName = null, string? instructions = null, string? description = null, AgentDefinition? agentDefinitionResponse = null, VersionMode versionMode = VersionMode.Normal) { this._agentName = agentName; this._instructions = instructions; this._description = description; this._agentDefinition = agentDefinitionResponse; this._versionMode = versionMode; } private string GetAgentResponseJson() { return this._versionMode switch { VersionMode.Empty => TestDataUtil.GetAgentResponseJsonWithEmptyVersion(this._agentName, this._agentDefinition, this._instructions, this._description), VersionMode.Whitespace => TestDataUtil.GetAgentResponseJsonWithWhitespaceVersion(this._agentName, this._agentDefinition, this._instructions, this._description), _ => TestDataUtil.GetAgentResponseJson(this._agentName, this._agentDefinition, this._instructions, this._description) }; } private string GetAgentVersionResponseJson() { return this._versionMode switch { VersionMode.Empty => TestDataUtil.GetAgentVersionResponseJsonWithEmptyVersion(this._agentName, this._agentDefinition, this._instructions, this._description), VersionMode.Whitespace => TestDataUtil.GetAgentVersionResponseJsonWithWhitespaceVersion(this._agentName, this._agentDefinition, this._instructions, this._description), _ => TestDataUtil.GetAgentVersionResponseJson(this._agentName, this._agentDefinition, this._instructions, this._description) }; } public override ClientResult GetAgent(string agentName, RequestOptions options) { var responseJson = this.GetAgentResponseJson(); return ClientResult.FromValue(ModelReaderWriter.Read(BinaryData.FromString(responseJson))!, new MockPipelineResponse(200, BinaryData.FromString(responseJson))); } public override ClientResult GetAgent(string agentName, CancellationToken cancellationToken = default) { var responseJson = this.GetAgentResponseJson(); return ClientResult.FromValue(ModelReaderWriter.Read(BinaryData.FromString(responseJson))!, new MockPipelineResponse(200)); } public override Task GetAgentAsync(string agentName, RequestOptions options) { var responseJson = this.GetAgentResponseJson(); return Task.FromResult(ClientResult.FromValue(ModelReaderWriter.Read(BinaryData.FromString(responseJson))!, new MockPipelineResponse(200, BinaryData.FromString(responseJson)))); } public override Task> GetAgentAsync(string agentName, CancellationToken cancellationToken = default) { var responseJson = this.GetAgentResponseJson(); return Task.FromResult(ClientResult.FromValue(ModelReaderWriter.Read(BinaryData.FromString(responseJson))!, new MockPipelineResponse(200))); } public override ClientResult CreateAgentVersion(string agentName, AgentVersionCreationOptions? options = null, string? foundryFeatures = null, CancellationToken cancellationToken = default) { var responseJson = this.GetAgentVersionResponseJson(); return ClientResult.FromValue(ModelReaderWriter.Read(BinaryData.FromString(responseJson))!, new MockPipelineResponse(200)); } public override Task> CreateAgentVersionAsync(string agentName, AgentVersionCreationOptions? options = null, string? foundryFeatures = null, CancellationToken cancellationToken = default) { var responseJson = this.GetAgentVersionResponseJson(); return Task.FromResult(ClientResult.FromValue(ModelReaderWriter.Read(BinaryData.FromString(responseJson))!, new MockPipelineResponse(200))); } } } private static PromptAgentDefinition GeneratePromptDefinitionResponse(PromptAgentDefinition inputDefinition, List? tools) { var definitionResponse = new PromptAgentDefinition(inputDefinition.Model) { Instructions = inputDefinition.Instructions }; if (tools is not null) { foreach (var tool in tools) { definitionResponse.Tools.Add(tool.GetService() ?? tool.AsOpenAIResponseTool()); } } return definitionResponse; } /// /// Test custom chat client that can be used to verify clientFactory functionality. /// private sealed class TestChatClient : DelegatingChatClient { public TestChatClient(IChatClient innerClient) : base(innerClient) { } } /// /// Mock pipeline response for testing ClientResult wrapping. /// private sealed class MockPipelineResponse : PipelineResponse { private readonly int _status; private readonly MockPipelineResponseHeaders _headers; public MockPipelineResponse(int status, BinaryData? content = null) { this._status = status; this.Content = content ?? BinaryData.Empty; this._headers = new MockPipelineResponseHeaders(); } public override int Status => this._status; public override string ReasonPhrase => "OK"; public override Stream? ContentStream { get => null; set { } } public override BinaryData Content { get; } protected override PipelineResponseHeaders HeadersCore => this._headers; public override BinaryData BufferContent(CancellationToken cancellationToken = default) => throw new NotSupportedException("Buffering content is not supported for mock responses."); public override ValueTask BufferContentAsync(CancellationToken cancellationToken = default) => throw new NotSupportedException("Buffering content asynchronously is not supported for mock responses."); public override void Dispose() { } private sealed class MockPipelineResponseHeaders : PipelineResponseHeaders { private readonly Dictionary _headers = new(StringComparer.OrdinalIgnoreCase) { { "Content-Type", "application/json" }, { "x-ms-request-id", "test-request-id" } }; public override bool TryGetValue(string name, out string? value) { return this._headers.TryGetValue(name, out value); } public override bool TryGetValues(string name, out IEnumerable? values) { if (this._headers.TryGetValue(name, out var value)) { values = [value]; return true; } values = null; return false; } public override IEnumerator> GetEnumerator() { return this._headers.GetEnumerator(); } } } #endregion /// /// Helper method to access internal ChatOptions property via reflection. /// private static ChatOptions? GetAgentChatOptions(ChatClientAgent agent) { if (agent is null) { return null; } var chatOptionsProperty = typeof(ChatClientAgent).GetProperty( "ChatOptions", System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance); return chatOptionsProperty?.GetValue(agent) as ChatOptions; } /// /// Test schema for JSON response format tests. /// #pragma warning disable CA1812 // Avoid uninstantiated internal classes - used via reflection by AIJsonUtilities private sealed class TestSchema { public string? Name { get; set; } public int Value { get; set; } } #pragma warning restore CA1812 /// /// Test AIContextProvider for options preservation tests. /// private sealed class TestAIContextProvider : AIContextProvider { protected override ValueTask InvokingCoreAsync(InvokingContext context, CancellationToken cancellationToken = default) { return new ValueTask(context.AIContext); } } /// /// Test ChatHistoryProvider for options preservation tests. /// private sealed class TestChatHistoryProvider : ChatHistoryProvider { protected override ValueTask> InvokingCoreAsync(InvokingContext context, CancellationToken cancellationToken = default) { return new ValueTask>(context.RequestMessages); } protected override ValueTask InvokedCoreAsync(InvokedContext context, CancellationToken cancellationToken = default) { return default; } } } /// /// Provides test data for invalid agent name validation tests. /// internal static class InvalidAgentNameTestData { /// /// Gets a collection of invalid agent names for theory-based testing. /// /// Collection of invalid agent name test cases. public static IEnumerable GetInvalidAgentNames() { yield return new object[] { "-agent" }; yield return new object[] { "agent-" }; yield return new object[] { "agent_name" }; yield return new object[] { "agent name" }; yield return new object[] { "agent@name" }; yield return new object[] { "agent#name" }; yield return new object[] { "agent$name" }; yield return new object[] { "agent%name" }; yield return new object[] { "agent&name" }; yield return new object[] { "agent*name" }; yield return new object[] { "agent.name" }; yield return new object[] { "agent/name" }; yield return new object[] { "agent\\name" }; yield return new object[] { "agent:name" }; yield return new object[] { "agent;name" }; yield return new object[] { "agent,name" }; yield return new object[] { "agentname" }; yield return new object[] { "agent?name" }; yield return new object[] { "agent!name" }; yield return new object[] { "agent~name" }; yield return new object[] { "agent`name" }; yield return new object[] { "agent^name" }; yield return new object[] { "agent|name" }; yield return new object[] { "agent[name" }; yield return new object[] { "agent]name" }; yield return new object[] { "agent{name" }; yield return new object[] { "agent}name" }; yield return new object[] { "agent(name" }; yield return new object[] { "agent)name" }; yield return new object[] { "agent+name" }; yield return new object[] { "agent=name" }; yield return new object[] { "a" + new string('b', 63) }; } }