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golang
docs: describe testing pattern
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README.md
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README.md
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## Development
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Requires Go v1.24+
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### Testing
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#### Handlers
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The command handlers (`cmd/handlers/`) use a multi-layered testing approach for happy and error paths:
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- Environment Isolation
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- Tests manipulate environment variables to simulate configuration failures
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- File System Simulation
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- By creating temporary directories with controlled permissions, tests verify that handlers properly handle file system errors like read-only directories, missing files, and permission denied scenarios.
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- Data Corruption Testing
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- Tests intentionally corrupt database schemas and configuration files to ensure handlers detect and report data integrity issues.
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- Table-Driven Error Testing
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- Systematic testing of multiple error scenarios using structured test tables