test-patterns

Name: test-patterns
Rating: 5 (2 reviews)
Author: atuljha23

Reference for writing tests that actually protect against regressions, focusing on deep assertions over spies, table-driven tests, fixture hygiene, and AAA structure. Use when writing, reviewing, or refactoring tests.

2stars

Updated 2 months ago

View on GitHub ↗License: MIT

How to add

/plugin marketplace add atuljha23/holocron

The exact command may vary by repository. Check the README on GitHub.

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#sql #ai #test

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Test patterns

A test's job is to fail when the behavior is wrong. Most mediocre tests pass whether the code is right or not.

Rules of thumb

Assert behavior, not implementation

Bad:

expect(spy).toHaveBeenCalled()

Good:

expect(response.body.status).toBe('completed')
expect(db.getUser(id).lastSeenAt).toBe(mockNow)

Spy-assertions fail on refactor and protect nothing. Behavior-assertions fail when the user-visible contract breaks.

One logical check per test

Man

[Description truncada. Veja o README completo no GitHub.]

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