Add comprehensive edge case tests for CLI library #5
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Enhanced test coverage across multiple areas: - Added 15+ new edge case tests in parse_test.go for command validation, flag handling, and argument parsing - Added 8 new runtime edge case tests in run_test.go for panic handling, nil context, and I/O operations - Created usage_test.go with 15 comprehensive tests for DefaultUsage function (previously 0% coverage) - Created path_test.go with 12 tests for command path operations and terminal() functionality - Tests cover deeply nested hierarchies, special characters, boundary conditions, and error scenarios 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
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Pull Request Overview
This PR adds extensive edge case tests for the CLI library to improve coverage and robustness. Key changes include adding new tests for usage string generation, runtime behavior (including panic handling and I/O redirection), and command parsing/path operations, as well as a minor update to an error message in run.go.
Reviewed Changes
Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.
Show a summary per file
| File | Description |
|---|---|
| usage_test.go | Added comprehensive tests for generating usage strings with various configurations. |
| run_test.go | Introduced tests covering nil context handling, panic scenarios, I/O redirection, and concurrency. |
| run.go | Updated error message for unparsed commands. |
| path_test.go | Added tests for verifying command path generation in various nesting scenarios. |
| parse_test.go | Extended tests for edge cases in command naming, flag parsing, argument handling, and duplicate subcommands. |
Comments suppressed due to low confidence (1)
run_test.go:150
- Consider using a sync.WaitGroup or another synchronization mechanism to ensure the launched goroutine completes before the test finishes, to better capture potential concurrency issues.
go func() { _ = GetFlag[string](s, "value") }()
🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
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Summary
• Enhanced test coverage across multiple areas of the CLI library
• Added 15+ new edge case tests in parse_test.go for command validation, flag handling, and argument parsing
• Added 8 new runtime edge case tests in run_test.go for panic handling, nil context, and I/O operations
• Created usage_test.go with 15 comprehensive tests for DefaultUsage function (previously 0% coverage)
• Created path_test.go with 12 tests for command path operations and terminal() functionality
Test plan
🤖 Generated with Claude Code