test(validators): fix naming and add missing coverage (#427)

[nanotaboada]

Summary

• Rename ValidateAsync_SquadNumber_BelongsToPlayerBeingUpdated_ReturnsNoErrors → ValidateAsync_SquadNumberBelongsToPlayerBeingUpdated_ReturnsNoErrors to comply with the 3-segment naming convention for service/validator tests
• Add ValidateAsync_SquadNumberNegative_ReturnsValidationError to exercise the GreaterThan(0) rule (a negative value passes NotEmpty() but fails the greater-than rule — a different rule and message path, previously untested)
• Add ValidateAsync_FirstNameEmptyInUpdateRuleSet_ReturnsValidationError to verify the "Update" rule set enforces structural field validation
• Make CSharpier step in /pre-commit conditional, consistent with the Docker and CodeRabbit steps

Closes #427

Test plan

• dotnet build --configuration Release passes
• dotnet test --settings .runsettings — all 41 tests pass
• dotnet csharpier --check . passes
• No regressions

🤖 Generated with Claude Code

Summary by CodeRabbit

• Tests

  • Added validation test coverage for player validation rules, including negative squad number and empty first name scenarios.
  • Improved test method naming consistency.

• Documentation

  • Updated development documentation and changelog to reflect changes in validation testing and pre-commit workflow flexibility.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: c5fa5843-5a41-4546-b36d-59f7b42f9f4d

📥 Commits

Reviewing files that changed from the base of the PR and between b781936 and 8bb8774.

📒 Files selected for processing (3)

• .claude/commands/pre-commit.md
• CHANGELOG.md
• test/Dotnet.Samples.AspNetCore.WebApi.Tests/Unit/PlayerValidatorTests.cs

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Walkthrough

PR addresses three test coverage gaps in PlayerValidatorTests.cs: renames one test method to follow naming conventions (3-segment format), adds a test for GreaterThan(0) rule with negative SquadNumber, and adds a test for the "Update" rule set's structural validation. Additionally updates the pre-commit checklist to conditionally run CSharpier based on availability.

Changes

Cohort / File(s)	Summary
Validator Test Coverage test/Dotnet.Samples.AspNetCore.WebApi.Tests/Unit/PlayerValidatorTests.cs	Added two new test methods: ValidateAsync_SquadNumberNegative_ReturnsValidationError (exercises the GreaterThan(0) rule with negative input) and ValidateAsync_FirstNameEmptyInUpdateRuleSet_ReturnsValidationError (verifies "Update" rule set structural validation). Renamed ValidateAsync_SquadNumber_BelongsToPlayerBeingUpdated_ReturnsNoErrors to follow 3-segment naming convention.
Documentation & Changelog .claude/commands/pre-commit.md, CHANGELOG.md	Updated pre-commit checklist step 4 to conditionally run dotnet csharpier --check . only if the tool is available; documented alignment with Docker and CodeRabbit steps in CHANGELOG.md.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Assessment against linked issues

Objective	Addressed	Explanation
Rename test method to follow 3-segment naming convention (#427)	✅
Add test for GreaterThan(0) rule with negative SquadNumber (#427)	✅
Add test for "Update" rule set structural validation (#427)	✅

Out-of-scope changes

Code Change	Explanation
Made CSharpier pre-commit step conditional (.claude/commands/pre-commit.md)	This change is not mentioned in linked issue #427, which focuses solely on validator test gaps and naming convention alignment. The pre-commit modification appears to be an ancillary improvement not part of the stated objectives.

Possibly related PRs

• chore(claude): improve Claude Code integration #431: Modifies the pre-commit checklist's CSharpier step behavior—the retrieved PR added an unconditional CSharpier check while this PR makes it conditional based on availability.
• fix(validators): scope BeUniqueSquadNumber to "Create" rule set (#424) #426: Modifies the same PlayerValidatorTests.cs file by introducing or adjusting validator test cases for the SquadNumber field and its rule scoping.
• refactor(tests): rename test methods to Microsoft naming standard #399: Updates the same test file (PlayerValidatorTests.cs), adding and renaming validator test methods that overlap with the test coverage changes in this PR.

🚥 Pre-merge checks | ✅ 1 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 20.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (1 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title follows Conventional Commits format with 'test:' prefix, is under 80 characters (60 chars), and accurately describes the main changes: renaming validator test methods and adding missing test coverage.

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud