9 lines
1.0 KiB
Markdown
9 lines
1.0 KiB
Markdown
# Testing and Code Quality Rules
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- **No non-null assertions**: Non-null assertions (the `!` operator) are a hack for missing null checks or extraneous null types. Always use proper null checks and handle possible null/undefined values explicitly.
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- **Do not throw errors within tests**: Use proper test assertions (e.g., `expect(value).not.toBeNull()`) instead of throwing errors from within tests. This ensures test failures are reported clearly and consistently.
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- **Do not use `any`**: Use proper types instead of `any`.
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- **Do not use `jest.fn()`**: Use proper test assertions (e.g., `expect(value).not.toBeNull()`) instead of throwing errors from within tests. This ensures test failures are reported clearly and consistently.
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- **Use the in-memory database for tests**: Use the in-memory database for tests. This is a good way to test the code without having to set up a real database.
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- **Always use repositories for database operations**: Use repositories for database operations. This is a good way to test the code without having to set up a real database.
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