Write tests that focus on unique edge cases and avoid redundancy. When designing test suites: 1. Consolidate similar test cases that don't provide additional coverage
Write tests that focus on unique edge cases and avoid redundancy. When designing test suites:
Instead of redundant tests:
it('should return empty array for empty object input', () => {
expect(uniq({})).toStrictEqual([]);
});
it('should return empty array for object with properties', () => {
expect(uniq({key: 'value'})).toStrictEqual([]);
});
Write a more meaningful test:
it('should return empty array for array-like objects that are not arrays', () => {
const arrayLike = {0: 'a', 1: 'b', length: 2};
expect(uniq(arrayLike as any)).toStrictEqual([]);
});
For test fixtures, place them in dedicated directories (e.g., tests/js/fixtures/) and design them to accept parameters for customization:
// tests/js/fixtures/tabularColumn.ts
export const TabularColumnFixture = (params: Partial<TabularColumn> = {}): TabularColumn => ({
key: 'default-key',
name: 'Default Name',
type: 'string',
...params,
});
This approach improves test maintainability and ensures your test suite provides meaningful coverage without unnecessary bloat.
Enter the URL of a public GitHub repository