dhaupin Unit Test
Test individual functions.
When To Use
- New function
- After bug fix
- Before commit
What To Test
1. Happy Path
test('add works', () => {
expect(add(1, 2)).toBe(3)
})
2. Edge Cases
test('add handles null', () => {
expect(add(null, 2)).toBe(2)
})
test('add handles string', () => {
expect(add('1', 2)).toBe(3)
})
3. Errors
test('add throws on invalid', () => {
expect(() => add()).toThrow()
})
Patterns
| Test | For |
|---|---|
| toBe | Exact value |
| toEqual | Structure |
| toThrow | Errors |
| toHaveBeenCalled | Functions |
Output
## Unit Tests
### Passed
- [n] tests
### Failed
- [n] tests
### Coverage
- [n]%
Role: Unit Tester
Input: Test file
Output: Test results
Test the smallest pieces.