Files
codex/codex-rs/utils/path-uri/src/api_path_string_tests.rs
T
Adam Perry @ OpenAI 322b83de5e Clarify model-generated and legacy app path types (#28577)
## Why

`ApiPathString` kind of implies that it can be used anywhere we pull a
path out of JSON, but it's not really appropriate for tool arguments
when the model might generate relative paths.

Prefer `String` for model-generated paths and we can handle the
conversion per feature for now and define a shared abstraction later if
it makes sense.

# What

Rename `ApiPathString` to `AppLegacyPathString` to clarify its role.

Expand the `path-types` skill to tell the model to leave tool args as
bare strings.
2026-06-16 20:47:43 +00:00

502 lines
16 KiB
Rust
Raw Blame History

This file contains ambiguous Unicode characters
This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
use super::*;
use crate::PathUri;
use codex_utils_absolute_path::AbsolutePathBuf;
use pretty_assertions::assert_eq;
#[derive(Clone, Copy, Debug)]
struct RenderCase {
uri: &'static str,
convention: PathConvention,
expected: RenderExpectation,
}
impl RenderCase {
const fn round_trips(
uri: &'static str,
convention: PathConvention,
rendered: &'static str,
) -> Self {
Self {
uri,
convention,
expected: RenderExpectation::RoundTrip(rendered),
}
}
const fn rejects(uri: &'static str, convention: PathConvention, error: ExpectedError) -> Self {
Self {
uri,
convention,
expected: RenderExpectation::Error(error),
}
}
const fn renders_lossily(
uri: &'static str,
convention: PathConvention,
rendered: &'static str,
) -> Self {
Self {
uri,
convention,
expected: RenderExpectation::RenderOnly(rendered),
}
}
}
#[derive(Clone, Copy, Debug)]
enum RenderExpectation {
RoundTrip(&'static str),
RenderOnly(&'static str),
Error(ExpectedError),
}
#[derive(Clone, Copy, Debug)]
enum ExpectedError {
OpaqueFallback,
IncompatibleConvention,
}
const RENDER_CASES: &[RenderCase] = &[
// POSIX paths.
RenderCase::round_trips("file:///", PathConvention::Posix, "/"),
RenderCase::round_trips(
"file:///home/alice/src/main.rs",
PathConvention::Posix,
"/home/alice/src/main.rs",
),
RenderCase::round_trips(
"file:///home/alice/a%20file.rs",
PathConvention::Posix,
"/home/alice/a file.rs",
),
RenderCase::round_trips(
"file:///workspace/src/lib.rs",
PathConvention::Posix,
"/workspace/src/lib.rs",
),
RenderCase::round_trips(
"file:///workspace/tests/test.rs",
PathConvention::Posix,
"/workspace/tests/test.rs",
),
RenderCase::round_trips("file:///etc", PathConvention::Posix, "/etc"),
RenderCase::round_trips("file:///tmp/", PathConvention::Posix, "/tmp/"),
RenderCase::round_trips("file:///C:/Project", PathConvention::Posix, "/C:/Project"),
RenderCase::round_trips("file:///C:", PathConvention::Posix, "/C:"),
RenderCase::round_trips("file:///tmp/%E2%98%83", PathConvention::Posix, "/tmp/☃"),
RenderCase::round_trips("file:///tmp/a%5Cb", PathConvention::Posix, "/tmp/a\\b"),
RenderCase::round_trips(
"file:///tmp/100%25/file",
PathConvention::Posix,
"/tmp/100%/file",
),
RenderCase::round_trips(
"file:///tmp/a%3Fb%23c%25d",
PathConvention::Posix,
"/tmp/a?b#c%d",
),
RenderCase::round_trips("file:///tmp/a%252Fb", PathConvention::Posix, "/tmp/a%2Fb"),
RenderCase::round_trips(
"file:///bad/path/L3RtcC9udWxsLQAt_y1ieXRl",
PathConvention::Posix,
"/bad/path/L3RtcC9udWxsLQAt_y1ieXRl",
),
RenderCase::round_trips(
"FILE:///workspace/src",
PathConvention::Posix,
"/workspace/src",
),
RenderCase::round_trips(
"file:/workspace/src",
PathConvention::Posix,
"/workspace/src",
),
RenderCase::round_trips(
"file://localhost/workspace/src",
PathConvention::Posix,
"/workspace/src",
),
RenderCase::round_trips(
"file://LOCALHOST/workspace/src",
PathConvention::Posix,
"/workspace/src",
),
// Windows drive paths.
RenderCase::round_trips(
"file:///C:/Users/Alice%20Smith/src/main.rs",
PathConvention::Windows,
r"C:\Users\Alice Smith\src\main.rs",
),
RenderCase::round_trips("file:///C:/", PathConvention::Windows, "C:\\"),
RenderCase::renders_lossily("file:///C:", PathConvention::Windows, "C:\\"),
RenderCase::round_trips("file:///C:/Users", PathConvention::Windows, r"C:\Users"),
RenderCase::round_trips("file:///C:/Windows", PathConvention::Windows, r"C:\Windows"),
RenderCase::round_trips(
"file:///d:/snowman/%E2%98%83",
PathConvention::Windows,
r"d:\snowman\☃",
),
RenderCase::round_trips("file:///C:/tmp/", PathConvention::Windows, "C:\\tmp\\"),
RenderCase::round_trips(
"file:///C:/test%20with%20%25/path",
PathConvention::Windows,
r"C:\test with %\path",
),
RenderCase::round_trips(
"file:///C:/test%20with%20%2525/c%23code",
PathConvention::Windows,
r"C:\test with %25\c#code",
),
RenderCase::round_trips(
"file:///C:/Source/Z%C3%BCrich%20or%20Zurich%20(%CB%88zj%CA%8A%C9%99r%C9%AAk,/Code/resources/app/plugins/c%23/plugin.json",
PathConvention::Windows,
r"C:\Source\Zürich or Zurich (ˈzjʊərɪk,\Code\resources\app\plugins\c#\plugin.json",
),
RenderCase::round_trips(
"file:///C:/project/owner's_file/database.sqlite",
PathConvention::Windows,
r"C:\project\owner's_file\database.sqlite",
),
RenderCase::round_trips(
"file:///C:/project/%25A0.txt",
PathConvention::Windows,
r"C:\project\%A0.txt",
),
RenderCase::round_trips(
"file:///C:/project/%252e.txt",
PathConvention::Windows,
r"C:\project\%2e.txt",
),
// Windows UNC paths.
RenderCase::round_trips(
"file://server/share/src/main.rs",
PathConvention::Windows,
r"\\server\share\src\main.rs",
),
RenderCase::round_trips(
"file://server/share",
PathConvention::Windows,
r"\\server\share",
),
RenderCase::round_trips(
"file://server/share/",
PathConvention::Windows,
"\\\\server\\share\\",
),
RenderCase::round_trips(
"file://shares/files/c%23/p.cs",
PathConvention::Windows,
r"\\shares\files\c#\p.cs",
),
RenderCase::round_trips(
"file://monacotools1/certificates/SSL/",
PathConvention::Windows,
"\\\\monacotools1\\certificates\\SSL\\",
),
// Opaque fallbacks rendered according to their source convention.
RenderCase::renders_lossily(
"file:///%00/bad/path/L3RtcC9udWxsLQAt_y1ieXRl",
PathConvention::Posix,
"/tmp/null-\0--byte",
),
RenderCase::round_trips(
"file:///%00/bad/path/XABcAC4AXABDAE8ATQAxAFwA",
PathConvention::Windows,
r"\\.\COM1\",
),
RenderCase::round_trips(
"file:///%00/bad/path/XABcAD8AXABWAG8AbAB1AG0AZQB7ADAAMAAwADAAMAAwADAAMAAtADAAMAAwADAALQAwADAAMAAwAC0AMAAwADAAMAAtADAAMAAwADAAMAAwADAAMAAwADAAMAAwAH0AXABmAGkAbABlAC4AcgBzAA",
PathConvention::Windows,
r"\\?\Volume{00000000-0000-0000-0000-000000000000}\file.rs",
),
// Windows rendering preserves path text without filesystem validation.
RenderCase::round_trips("file:///C:/a%3Fb", PathConvention::Windows, "C:\\a?b"),
RenderCase::round_trips("file:///C:/a*b", PathConvention::Windows, "C:\\a*b"),
RenderCase::round_trips(
"file:///C:/trailing.",
PathConvention::Windows,
"C:\\trailing.",
),
RenderCase::round_trips(
"file:///C:/trailing%20",
PathConvention::Windows,
"C:\\trailing ",
),
RenderCase::round_trips(
"file:///C:/control-%01",
PathConvention::Windows,
"C:\\control-\u{1}",
),
RenderCase::round_trips(
"file:///C:/file.txt:stream",
PathConvention::Windows,
"C:\\file.txt:stream",
),
RenderCase::round_trips(
"file://server/sh%3Fare/file.rs",
PathConvention::Windows,
"\\\\server\\sh?are\\file.rs",
),
// These renderings intentionally lose URI byte or segment boundaries.
RenderCase::renders_lossily(
"file:///tmp/non-utf8-%FF",
PathConvention::Posix,
"/tmp/non-utf8-",
),
RenderCase::renders_lossily(
"file:///tmp/non-utf8-%A0",
PathConvention::Posix,
"/tmp/non-utf8-",
),
RenderCase::renders_lossily("file:///tmp/a%2Fb", PathConvention::Posix, "/tmp/a/b"),
RenderCase::renders_lossily("file:///C:/a%2Fb", PathConvention::Windows, "C:\\a/b"),
RenderCase::renders_lossily("file:///C:/a%5Cb", PathConvention::Windows, "C:\\a\\b"),
// URI shapes that do not match the requested convention.
RenderCase::rejects(
"file://server/share/file.txt",
PathConvention::Posix,
ExpectedError::IncompatibleConvention,
),
RenderCase::rejects(
"file://server/share/file.rs",
PathConvention::Posix,
ExpectedError::IncompatibleConvention,
),
RenderCase::rejects(
"file:///usr/local/file.txt",
PathConvention::Windows,
ExpectedError::IncompatibleConvention,
),
RenderCase::rejects(
"file:///home/alice/file.rs",
PathConvention::Windows,
ExpectedError::IncompatibleConvention,
),
RenderCase::rejects(
"file://server/",
PathConvention::Windows,
ExpectedError::IncompatibleConvention,
),
RenderCase::rejects(
"file:///_:/path",
PathConvention::Windows,
ExpectedError::IncompatibleConvention,
),
// Invalid opaque fallback payloads.
RenderCase::rejects(
"file:///%00/bad/path/YQ",
PathConvention::Posix,
ExpectedError::OpaqueFallback,
),
RenderCase::rejects(
"file:///%00/bad/path/L3RtcC9udWxsLQAt_y1ieXRl",
PathConvention::Windows,
ExpectedError::OpaqueFallback,
),
];
#[test]
fn renders_native_paths_from_shared_cases() {
for case in RENDER_CASES {
let path = PathUri::parse(case.uri).expect("valid file URI");
let expected = match case.expected {
RenderExpectation::RoundTrip(rendered) => Ok(LegacyAppPathString(rendered.to_string())),
RenderExpectation::RenderOnly(rendered) => {
Ok(LegacyAppPathString(rendered.to_string()))
}
RenderExpectation::Error(ExpectedError::OpaqueFallback) => {
Err(LegacyAppPathStringError::OpaqueFallback {
path: path.to_string(),
})
}
RenderExpectation::Error(ExpectedError::IncompatibleConvention) => {
Err(LegacyAppPathStringError::IncompatibleConvention {
path: path.to_string(),
convention: case.convention,
})
}
};
let actual = LegacyAppPathString::from_path_uri(&path, case.convention);
assert_eq!(actual, expected, "rendering {case:?}");
if let Ok(rendered) = &actual {
assert_eq!(
rendered.infer_absolute_path_convention(),
Some(case.convention),
"inferring {case:?}"
);
}
if let RenderExpectation::RoundTrip(rendered) = case.expected {
let api_path =
serde_json::from_value::<LegacyAppPathString>(serde_json::json!(rendered))
.expect("native path should deserialize from API text");
let reparsed = api_path
.to_path_uri(case.convention)
.expect("native path should parse using its convention");
assert_eq!(reparsed, path, "parsing {case:?}");
assert_eq!(
LegacyAppPathString::from_path_uri(&reparsed, case.convention),
Ok(api_path),
"round-tripping {case:?}"
);
}
}
}
#[test]
fn relative_api_path_serializes_and_deserializes_unchanged() {
for raw_path in [".", "subdir", "subdir/file.rs"] {
let path = serde_json::from_value::<LegacyAppPathString>(serde_json::json!(raw_path))
.expect("relative API path should deserialize");
assert_eq!(
serde_json::to_value(path).expect("relative API path should serialize"),
serde_json::json!(raw_path)
);
}
}
#[test]
fn relative_api_path_is_invalid_when_converted_to_a_path_uri() {
let raw_path = "subdir";
let path = serde_json::from_value::<LegacyAppPathString>(serde_json::json!(raw_path))
.expect("relative API path should deserialize");
assert_eq!(path.infer_absolute_path_convention(), None);
assert_eq!(
path.to_path_uri(PathConvention::Posix),
Err(LegacyAppPathStringError::InvalidNativePath {
path: raw_path.to_string(),
convention: PathConvention::Posix,
})
);
}
#[test]
fn other_non_absolute_api_paths_cannot_be_converted_to_path_uris() {
for (raw_path, convention) in [
(r"workspace\file.rs", PathConvention::Windows),
(r"C:file.rs", PathConvention::Windows),
] {
let path = serde_json::from_value::<LegacyAppPathString>(serde_json::json!(raw_path))
.expect("API path should deserialize without validation");
assert_eq!(path.infer_absolute_path_convention(), None);
assert_eq!(
path.to_path_uri(convention),
Err(LegacyAppPathStringError::InvalidNativePath {
path: raw_path.to_string(),
convention,
})
);
}
}
#[test]
fn infers_absolute_path_conventions_from_api_text() {
for (raw_path, expected) in [
(r"C:\workspace\file.rs", Some(PathConvention::Windows)),
("c:/workspace/file.rs", Some(PathConvention::Windows)),
(r"\\server\share\file.rs", Some(PathConvention::Windows)),
(r"\\?\C:\workspace\file.rs", Some(PathConvention::Windows)),
(r"\\.\COM1", Some(PathConvention::Windows)),
("/workspace/file.rs", Some(PathConvention::Posix)),
("/C:/workspace/file.rs", Some(PathConvention::Posix)),
("//server/share/file.rs", Some(PathConvention::Posix)),
("", None),
(".", None),
("subdir/file.rs", None),
(r"subdir\file.rs", None),
(r"C:file.rs", None),
(r"\rooted-without-drive", None),
] {
let path = serde_json::from_value::<LegacyAppPathString>(serde_json::json!(raw_path))
.expect("API path should deserialize without validation");
assert_eq!(
path.infer_absolute_path_convention(),
expected,
"inferring {raw_path:?}"
);
}
}
#[test]
fn foreign_absolute_syntax_deserializes_without_host_interpretation() {
for (raw_path, convention) in [
(r"C:\workspace\file.rs", PathConvention::Windows),
("/workspace/file.rs", PathConvention::Posix),
] {
let path = serde_json::from_value::<LegacyAppPathString>(serde_json::json!(raw_path))
.expect("foreign API path should deserialize");
assert_eq!(path.as_str(), raw_path);
assert_eq!(path.infer_absolute_path_convention(), Some(convention));
}
}
#[test]
fn renders_an_absolute_path_using_the_host_convention() {
#[cfg(unix)]
let native_path = "/workspace/a file.rs";
#[cfg(windows)]
let native_path = r"C:\workspace\a file.rs";
let path = AbsolutePathBuf::from_absolute_path_checked(native_path)
.expect("native path should be absolute");
assert_eq!(
LegacyAppPathString::from(path),
LegacyAppPathString(native_path.to_string())
);
}
#[cfg(windows)]
#[test]
fn renders_native_non_unicode_windows_fallback_lossily() {
use std::os::windows::ffi::OsStringExt;
let native_path = std::path::PathBuf::from(std::ffi::OsString::from_wide(
&r"C:\bad\"
.encode_utf16()
.chain([0xd800])
.collect::<Vec<_>>(),
));
let native_path =
AbsolutePathBuf::from_absolute_path_checked(native_path).expect("absolute native path");
assert_eq!(
LegacyAppPathString::from_abs_path(&native_path),
LegacyAppPathString(r"C:\bad\".to_string())
);
let path = PathUri::from_abs_path(&native_path);
assert_eq!(
LegacyAppPathString::from_path_uri(&path, PathConvention::Windows),
Ok(LegacyAppPathString(r"C:\bad\".to_string()))
);
assert_eq!(
LegacyAppPathString::from_path_uri(&path, PathConvention::Posix),
Err(LegacyAppPathStringError::OpaqueFallback {
path: path.to_string(),
})
);
}
#[test]
fn serializes_and_deserializes_as_a_string() {
let path = PathUri::parse("file:///workspace/src/lib.rs").expect("valid file URI");
let rendered = LegacyAppPathString::from_path_uri(&path, PathConvention::Posix)
.expect("POSIX URI should render");
let json = serde_json::to_string(&rendered).expect("rendered path should serialize");
assert_eq!(json, r#""/workspace/src/lib.rs""#);
assert_eq!(
serde_json::from_str::<LegacyAppPathString>(&json)
.expect("rendered path should deserialize from a string"),
rendered
);
}