General
PromptBeginner5 minmarkdown
- Check for conflicts between existing tools (ESLint vs Prettier
multiple configs).
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General
PromptBeginner5 minmarkdown
- Review any existing style guides
CLAUDE.md notes
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General
PromptBeginner5 minmarkdown
- Examine the project structure
technology stack
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General
PromptBeginner5 minmarkdown
- **Configure** ESLint
Prettier
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General
PromptBeginner5 minmarkdown
- [ ] Edge cases
error scenarios
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General
PromptBeginner5 minmarkdown
- **Setup**: Required fixtures
mocks
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General
PromptBeginner5 minmarkdown
- **Scope**: Unit
integration
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General
PromptBeginner5 minmarkdown
Before finalizing
verify:
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General
PromptBeginner5 minmarkdown
- **No edge case coverage**: Only testing the happy path and ignoring boundaries
nulls
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General
PromptBeginner5 minmarkdown
- **Testing implementation details**: Asserting on internal state
private methods
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General
PromptBeginner5 minmarkdown
- Use AssertJ for fluent
readable assertions.
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General
PromptBeginner5 minmarkdown
- Query elements by accessible roles and text
not implementation selectors.
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General
PromptBeginner5 minmarkdown
- Apply markers to categorize tests (slow
integration
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General
PromptBeginner5 minmarkdown
- Use fixtures with appropriate scopes (function
class
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Data
PromptBeginner5 minmarkdown
- Log relevant context (input data
state) on failure for faster diagnosis.
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General
PromptBeginner5 minmarkdown
- Configure test environments (jsdom
node) appropriately per test suite.
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General
PromptBeginner5 minmarkdown
- Handle flaky tests with proper waits and retries
never `cy.wait(ms)`.
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General
PromptBeginner5 minmarkdown
- Follow the test pyramid: many unit tests
fewer integration tests
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General
PromptBeginner5 minmarkdown
- Mock external services at the boundary
not internal implementation details.
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General
PromptBeginner5 minmarkdown
- [ ] All tests follow AAA pattern with clear arrange
act
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General
PromptBeginner5 minmarkdown
After writing or updating tests
verify:
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General
PromptBeginner5 minmarkdown
- [ ] Edge cases
boundary values
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General
PromptBeginner5 minmarkdown
- Replace non-deterministic elements (time
randomness) with controlled values.
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General
PromptBeginner5 minmarkdown
- Monitor resource consumption (CPU
memory
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