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feat(reporters): add file and line to JUnit test cases - #7738
The JUnit reporter now writes file and line attributes on each <testcase>, from the test's TestFileLocationProperty.
CI tools use these two attributes to put a failed test on its source line. For example, publish-unit-test-result-action reads them from each test case (junit.py) and turns them into check run annotations. pytest and jest-junit also write these attributes.
How the writer picks the values:
line is LineSpan.Start.Line. TUnit already stores it 1-based, and the GitHub and HTML reporters use the same value for their source links.
file goes through SourcePathResolver.ToRepoRelativePath with the workspace and repository from SourceControlContext.Detect, the same call the HTML reporter makes. On GitHub Actions, GitLab CI and Bitbucket Pipelines this gives a path relative to the repository root, also for deterministic builds (/_/...). When the path cannot be resolved, the writer uses the path that the compiler recorded, unchanged.
A test without a known location gets neither attribute. That covers a node with no TestFileLocationProperty, an empty path, and line 0 (the "Unknown" placeholder that failed-discovery tests carry).
The new attributes come after name, classname and time. TUnit does not validate its JUnit output against a schema, and JUnit readers such as GitLab ignore attributes they do not use.
The docs page execution/ci-cd-reporting.md gets a short section on the attributes, with an example and a link to the JUnit documentation.
Sample from TUnit.TestProject (JUnitReporterInvalidXmlCharacterTests, net10.0, with GITHUB_ACTIONS, GITHUB_WORKSPACE and GITHUB_REPOSITORY set). Source-generated and reflection mode give the same file and line values. The stack trace is shortened:
<testcasename="TestWithValidString(Some valid string)"classname="JUnitReporterInvalidXmlCharacterTests"time="0.015"file="tests/TUnit.TestProject/JUnitReporterInvalidXmlCharacterTests.cs"line="7" />
<testcasename="TestFailingWithInvalidCharacterInException"classname="JUnitReporterInvalidXmlCharacterTests"time="0.050"file="tests/TUnit.TestProject/JUnitReporterInvalidXmlCharacterTests.cs"line="35">
<errormessage="Error with invalid [0x4] character in exception message"type="System.InvalidOperationException">System.InvalidOperationException: Error with invalid [0x4] character in exception message
at TUnit.TestProject.JUnitReporterInvalidXmlCharacterTests.TestFailingWithInvalidCharacterInException() ...</error>
</testcase>
Related Issue
None.
Type of Change
Bug fix (non-breaking change that fixes an issue)
New feature (non-breaking change that adds functionality)
Breaking change (fix or feature that would cause existing functionality to change)
Snapshot Tests: If I changed source generator output or public APIs:
I ran TUnit.Core.SourceGenerator.Tests and/or TUnit.PublicAPI tests
I reviewed the .received.txt files and accepted them as .verified.txt
I committed the updated .verified.txt files
Performance: If this change affects hot paths (test discovery, execution, assertions):
I minimized allocations and avoided LINQ in hot paths
I cached reflection results where appropriate
AOT Compatibility: If this change uses reflection:
I added appropriate [DynamicallyAccessedMembers] annotations
I verified the change works with dotnet publish -p:PublishAot=true
Testing
All existing tests pass (dotnet test)
I have added tests that cover my changes
I have tested both source-generated and reflection modes (if applicable)
Additional Notes
The change does not touch discovery, execution, public APIs or reflection. The writer runs once at the end of a session, so the extra property check is not on a hot path.
Tests:
JUnitXmlWriterTests has two new parameterized tests. One covers the path forms: no CI context, a GitHub Actions workspace on Linux and on Windows, and a deterministic /_/ path. The other covers the cases that omit both attributes. TUnit.UnitTests passes on net10.0 and net11.0.
I ran JUnitReporterInvalidXmlCharacterTests in TUnit.TestProject with the JUnit reporter on, in source-generated and reflection mode, and checked the output above. The one failure in that class is intentional.
I did not run TUnit.Engine.Tests locally, as AGENTS.md asks.
I did not open a discussion first because the change is small. I can open one if you prefer.
Summary by CodeRabbit
New Features
JUnit reports now include test source file and line information when available. File paths are repository-relative when they can be resolved.
Documentation
Updated the CI/CD reporting guide with details and an example of source locations in JUnit XML.
The JUnit reporter writes file and line attributes on each testcase from
the test's TestFileLocationProperty, so CI tools can show a failure on its
source line. The file path is relative to the repository root when the CI
provider is detected, else the full path with forward slashes. Tests with
no known location get neither attribute.
JUnit reporting now includes qualifying test source locations as file and line attributes in JUnit XML. The reporter passes filter and source-control context to the XML writer. Tests and documentation cover the generated attributes.
Changes: JUnit Source Locations
Layer / File(s)
Summary
Write source locations in JUnit XML src/TUnit.Engine/Reporters/JUnitReporter.cs, src/TUnit.Engine/Xml/JUnitXmlWriter.cs, tests/TUnit.UnitTests/JUnitXmlWriterTests.cs, docs/docs/execution/ci-cd-reporting.md
The reporter passes its filter and detected source-control context to the XML writer. The writer adds file and line attributes when a test has a nonempty source path and a positive start line. It writes a repository-relative path when resolution succeeds, and otherwise writes the original path. Tests cover path handling and cases where attributes are omitted. The guide documents the attributes.
sequenceDiagram
participant JUnitReporter
participant JUnitXmlWriter
participant JUnitXML
JUnitReporter->>JUnitXmlWriter: Pass filter and source-control context to GenerateXml
JUnitXmlWriter->>JUnitXML: Write file and line attributes for qualifying locations
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Possibly related PRs
thomhurst/TUnit#7296: Adds the unobserved-exceptions parameter and reporter call shape that this change extends.
Suggested reviewers:thomhurst
Merge Risk: Low · up to 51cc9
JUnit file attributes can be wrong when a test source sits in a sibling directory whose name starts with the workspace name. The case is narrow and the fix is a one-line separator check. Fix it before or soon after merge.
Pre-merge checks: 4
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The title "feat(reporters): add file and line to JUnit test cases" matches the main change. The JUnit XML writer now emits file and line attributes on testcase elements, taken from the test location p…
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Explanation
The title "feat(reporters): add file and line to JUnit test cases" matches the main change. The JUnit XML writer now emits file and line attributes on testcase elements, taken from the test location property, with repository-relative path resolution. The summary and objectives describe the same change, and the title is concise and specific.
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A rabbit checks the test report, And finds each file and line. The paths are set in XML, The tests confirm the signs. Then off it hops, content and fine.
This is a clean, small change, and I found no blocking issues.
It reuses SourcePathResolver.ToRepoRelativePath and SourceControlContext.Detect, the same helpers the HTML reporter uses. There is no duplicated path logic.
Omitting file and line when the path is empty or the line is 0 correctly covers the "Unknown" placeholder case.
SourceControlContext? sourceControl = null falls back to Empty, so existing callers and tests keep working. The fallback to the full path with / separators is sensible.
file goes through SanitizeForXml, and line is formatted with the invariant culture.
The unit tests cover Windows paths, GitHub-style workspaces, deterministic /_/ paths and the unknown-location cases. The docs section is concise.
Optional nits:
The early-exit condition in the property loop now has four conjuncts. It works, but it will get harder to read if more properties are added.
A test with a non-empty SourceControlContext that goes through JUnitReporter end to end would be nice, but it is not required.
This PR looks good, and I found no blocking issues.
It reuses the existing SourceControlContext.Detect and SourcePathResolver.ToRepoRelativePath helpers, the same ones the GitHub and HTML reporters use. Path handling therefore stays consistent across reporters.
It handles the unknown-location cases: no property, an empty path, and line 0 each omit both attributes.
SanitizeForXml is applied to the path. The sourceControl ?? Empty default keeps existing callers working.
The single-pass property loop with early exit is still correct. It just needs one more property before it can break.
The new tests cover the path forms (Windows and Linux paths, deterministic /_/ paths) and the omission cases. The docs section is accurate.
Optional nit: SourceControlContext.Detect is called in AfterRunAsync even when the context is not otherwise needed. It only runs once per session, so the cost is negligible.
No dual-mode or AOT concerns, since the change only touches reporter output.
The change is clean and well scoped. file and line are written only when a location is known (line > 0 and a non-empty path). Reusing SourcePathResolver.ToRepoRelativePath keeps the paths consistent with the HTML reporter, and the fallback to a /-separated full path is sensible. GenerateXml takes sourceControl as an optional parameter, so existing callers keep working. The unit tests cover the Windows, Linux and deterministic-build (/_/) paths, plus the omitted cases. The docs section is concise.
Minor observations, none blocking:
The single-pass loop only breaks early once all four properties are found. Tests with no TestFileLocationProperty (failed discovery) now scan the whole bag. The bag is small, so this is negligible.
SourceControlContext.Detect runs once per report in AfterRunAsync, not per test, so there is no hot-path cost.
SanitizeForXml on the path is the right call, since paths can contain unusual characters.
LGTM.
I reviewed the diff by hand because the code-review skill failed to run.
The change is small and consistent with the existing reporters. I found no blocking issues.
It reuses SourcePathResolver.ToRepoRelativePath and SourceControlContext.Detect, as the HTML and GitHub reporters do. It falls back to the compiler-recorded path when the path can't be resolved.
Tests with no known location (no property, empty path, or line 0) get neither attribute.
The optional sourceControl parameter defaults to SourceControlContext.Empty, so existing callers of GenerateXml are unaffected.
The unit tests cover the Windows, Linux, GitHub Actions and deterministic-build (/_/) path cases, plus the omit cases.
The docs section is concise.
Optional: the break condition in the property loop now needs four properties. Tests without a file location will always scan the whole bag. That's negligible for typical bag sizes.
I did not build the PR or run the tests. This review comes from reading the diff and checking that SourceControlContext.Empty and SourcePathResolver.ToRepoRelativePath exist in pr-head.
Review: feat(reporters): add file and line to JUnit test cases
I read the diff and checked it against SourceControlContext and SourcePathResolver. I did not build the change or run its tests, and the Skill-based /code-review run failed, so this is a manual review. I found no blocking issues.
Reuse: The writer uses SourcePathResolver.ToRepoRelativePath and SourceControlContext.Detect, the same calls the HTML reporter makes. That keeps path handling consistent across reporters.
Defaults:SourceControlContext.Empty exists, so a null context falls back safely. When the path cannot be resolved, the writer uses the compiler-recorded path.
Omitting the attributes: A test with no location, an empty path, or line 0 gets neither attribute. This stops the "Unknown" placeholder from showing up as a bogus file.
Scope: The writer runs once at the end of the session, so the extra property check adds nothing to a hot path. The change does not touch discovery or execution, so the dual-mode requirement does not apply.
Tests: The parameterized tests cover Windows and Linux workspaces, a deterministic /_/ path, and the cases where both attributes are omitted.
Optional suggestions, none blocking:
SourceControlContext.Detect is now also called from JUnitReporter, and the HTML reporter has its own call. If a third caller appears, cache the result or share one detection step.
The new sourceControl parameter on GenerateXml is optional and is last, so existing callers still compile. The public API snapshot tests should be unaffected if JUnitXmlWriter is internal. Please confirm that in CI.
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Actionable comments posted: 1
Fix comments: Fix CodeRabbit comments on this PR
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Inline comments:
Review comments at @src/TUnit.Engine/Xml/JUnitXmlWriter.cs:
- Line 244: Update SourcePathResolver.ToRepoRelativePath to require the
normalized file path to begin with the workspace path followed by a
path-separator boundary, so partial directory-name matches return null while
valid workspace descendants retain the existing relative-path behavior. Add a
regression case to the SourcePathResolver tests in HtmlReporterTests for a file
under a similarly prefixed but distinct directory.
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Files selected for processing: 4
docs/docs/execution/ci-cd-reporting.md
src/TUnit.Engine/Reporters/JUnitReporter.cs
src/TUnit.Engine/Xml/JUnitXmlWriter.cs
tests/TUnit.UnitTests/JUnitXmlWriterTests.cs
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@thomhurst I was planning on opening an issue to discuss this change & build a small POC app to show off the change before I took the PR out of draft, but my day got away from me. So, if you'd like to take it I'd be happy to skip all that?
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Description
The JUnit reporter now writes
fileandlineattributes on each<testcase>, from the test'sTestFileLocationProperty.CI tools use these two attributes to put a failed test on its source line. For example, publish-unit-test-result-action reads them from each test case (junit.py) and turns them into check run annotations. pytest and jest-junit also write these attributes.
How the writer picks the values:
lineisLineSpan.Start.Line. TUnit already stores it 1-based, and the GitHub and HTML reporters use the same value for their source links.filegoes throughSourcePathResolver.ToRepoRelativePathwith the workspace and repository fromSourceControlContext.Detect, the same call the HTML reporter makes. On GitHub Actions, GitLab CI and Bitbucket Pipelines this gives a path relative to the repository root, also for deterministic builds (/_/...). When the path cannot be resolved, the writer uses the path that the compiler recorded, unchanged.TestFileLocationProperty, an empty path, and line 0 (the"Unknown"placeholder that failed-discovery tests carry).The new attributes come after
name,classnameandtime. TUnit does not validate its JUnit output against a schema, and JUnit readers such as GitLab ignore attributes they do not use.The docs page
execution/ci-cd-reporting.mdgets a short section on the attributes, with an example and a link to the JUnit documentation.Sample from
TUnit.TestProject(JUnitReporterInvalidXmlCharacterTests, net10.0, withGITHUB_ACTIONS,GITHUB_WORKSPACEandGITHUB_REPOSITORYset). Source-generated and reflection mode give the samefileandlinevalues. The stack trace is shortened:Related Issue
None.
Type of Change
Checklist
Required
TUnit-Specific Requirements
TUnit.Core.SourceGenerator)TUnit.Engine)TUnit.Core.SourceGenerator.Testsand/orTUnit.PublicAPItests.received.txtfiles and accepted them as.verified.txt.verified.txtfiles[DynamicallyAccessedMembers]annotationsdotnet publish -p:PublishAot=trueTesting
dotnet test)Additional Notes
The change does not touch discovery, execution, public APIs or reflection. The writer runs once at the end of a session, so the extra property check is not on a hot path.
Tests:
JUnitXmlWriterTestshas two new parameterized tests. One covers the path forms: no CI context, a GitHub Actions workspace on Linux and on Windows, and a deterministic/_/path. The other covers the cases that omit both attributes.TUnit.UnitTestspasses on net10.0 and net11.0.JUnitReporterInvalidXmlCharacterTestsinTUnit.TestProjectwith the JUnit reporter on, in source-generated and reflection mode, and checked the output above. The one failure in that class is intentional.TUnit.Engine.Testslocally, asAGENTS.mdasks.I did not open a discussion first because the change is small. I can open one if you prefer.
Summary by CodeRabbit