[Test Improver] Add unit tests for CommandLineOption#8319
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Evangelink merged 4 commits intoMay 18, 2026
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Tests cover constructor validation (null/empty/whitespace name and description, invalid arity, invalid characters in name), property initialization, equality (Equals/GetHashCode) for same and differing values. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Pull request overview
Adds a new unit test file CommandLineOptionTests.cs covering constructor validation, property initialization, equality, and hash code behavior of the public CommandLineOption class in Microsoft.Testing.Platform.
Changes:
- Adds 26 MSTest test methods (some
[DataRow]-driven) forCommandLineOptionconstructor argument validation (null/empty/whitespace name & description, invalid arity, invalid name characters). - Adds tests for valid name characters, property assignment, and
IsHiddenhandling. - Adds tests for
Equals(typed and object overloads, including null) andGetHashCodebehavior.
Show a summary per file
| File | Description |
|---|---|
| test/UnitTests/Microsoft.Testing.Platform.UnitTests/CommandLine/CommandLineOptionTests.cs | New unit test file exercising CommandLineOption constructor validation, property initialization, equality, and hashing. |
Copilot's findings
- Files reviewed: 1/1 changed files
- Comments generated: 0
Evangelink
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May 18, 2026
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| # | Dimension | Verdict |
|---|---|---|
| 1 | Algorithmic Correctness | 🟠 1 MODERATE |
| 10 | Test Isolation / Assertion Quality | 🔵 1 NIT |
✅ 19/21 dimensions clean.
- Algorithmic Correctness —
GetHashCode_DifferentValues_ReturnsDifferentHashasserts hash uniqueness, which is not part of theGetHashCodecontract and is coincidentally true rather than contractually guaranteed. - Test Coverage — whitespace description guard is tested for
name(3 variants) but only 2 variants fordescription;Ensure.NotNullOrWhiteSpace(description)should also reject whitespace.
Everything else looks solid: the tests are well-structured, follow the project's Assert.* naming conventions, cover null/empty/invalid-char/valid-char scenarios, and correctly verify both Equals(T) and Equals(object) overloads.
Generated by Expert Code Review (on open) for issue #8319 · ● 6.6M
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@copilot address review comments |
Co-authored-by: Evangelink <11340282+Evangelink@users.noreply.github.com>
Contributor
Addressed the review comments in commit |
Evangelink
commented
May 18, 2026
YuliiaKovalova
approved these changes
May 18, 2026
Evangelink
deleted the
test-assist/command-line-option-tests-287cfe29f0af8b9e
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This was referenced May 20, 2026
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Tests cover constructor validation (null/empty/whitespace name and description,
invalid arity, invalid characters in name), property initialization, equality
(Equals/GetHashCode) for same and differing values.
Co-authored-by: Copilot 223556219+Copilot@users.noreply.github.com
Fix #8310