test(bufdelete): add comprehensive test suite #2564
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- Add 14 test cases covering bufdelete functionality - Test option parsing (buffer number, options table, nil/empty args) - Test error handling (non-existent files, invalid buffers) - Test module interface (callable via metatable, method exports) - Test filter functions (listed vs unlisted buffer handling) - All tests pass in headless test environment
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Description
This PR adds comprehensive test coverage for the
bufdeletemodule, which previously had no tests. The test suite includes 14 test cases that validate the module's API surface, error handling, and core functionality.Why this PR?
The
bufdeletemodule is a core utility that needs regression protection. While the module is designed for interactive use with window management (making full integration testing challenging in headless environments), this test suite focuses on testable behaviors:Testing Approach
The test suite uses a pragmatic approach that acknowledges the limitations of unit testing UI-focused functionality. Rather than fighting against Neovim's architecture, it focuses on:
This provides valuable regression protection while remaining maintainable and reliable across different test environments.
Test Results
Total number of cases: 14 Total number of groups: 1 Fails (0) and Notes (0)
All tests pass consistently in the headless test environment.
Related Issue(s)
N/A - This is a proactive contribution to improve test coverage. No existing issue tracks this work.
Screenshots
N/A - This PR adds tests only, with no user-facing changes.