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Copy pathparse-diff.test.ts
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99 lines (83 loc) · 3.74 KB
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import { describe, it, expect } from 'vitest';
import { parseDiffNames, enrichFileStatuses } from '../../scripts/impact-utils/parse-diff.mjs';
// ── parseDiffNames ──────────────────────────────────────────────────────
describe('parseDiffNames', () => {
it('parses a normal multi-line diff output', () => {
const result = parseDiffNames('src/a.ts\nsrc/b.ts\n');
expect(result.all).toEqual(['src/a.ts', 'src/b.ts']);
expect(result.modified).toEqual(['src/a.ts', 'src/b.ts']);
expect(result.added).toEqual([]);
expect(result.deleted).toEqual([]);
});
it('returns empty arrays for empty string input', () => {
const result = parseDiffNames('');
expect(result.all).toEqual([]);
expect(result.modified).toEqual([]);
});
it('returns empty arrays for whitespace-only input', () => {
const result = parseDiffNames(' \n \n ');
expect(result.all).toEqual([]);
});
it('handles trailing newlines without creating empty entries', () => {
const result = parseDiffNames('file.ts\n\n\n');
expect(result.all).toEqual(['file.ts']);
});
it('trims leading/trailing whitespace from filenames', () => {
const result = parseDiffNames(' src/a.ts \n src/b.ts \n');
expect(result.all).toEqual(['src/a.ts', 'src/b.ts']);
});
it('handles a single file with no trailing newline', () => {
const result = parseDiffNames('only-file.ts');
expect(result.all).toEqual(['only-file.ts']);
});
});
// ── enrichFileStatuses ──────────────────────────────────────────────────
describe('enrichFileStatuses', () => {
it('classifies added files', () => {
const result = enrichFileStatuses([{ filename: 'new.ts', status: 'added' }]);
expect(result.added).toEqual(['new.ts']);
expect(result.modified).toEqual([]);
expect(result.deleted).toEqual([]);
expect(result.all).toEqual(['new.ts']);
});
it('classifies removed files', () => {
const result = enrichFileStatuses([{ filename: 'old.ts', status: 'removed' }]);
expect(result.deleted).toEqual(['old.ts']);
expect(result.added).toEqual([]);
});
it('classifies modified files', () => {
const result = enrichFileStatuses([{ filename: 'mod.ts', status: 'modified' }]);
expect(result.modified).toEqual(['mod.ts']);
});
it('classifies renamed files as modified', () => {
const result = enrichFileStatuses([{ filename: 'renamed.ts', status: 'renamed' }]);
expect(result.modified).toEqual(['renamed.ts']);
});
it('classifies copied files as modified', () => {
const result = enrichFileStatuses([{ filename: 'copy.ts', status: 'copied' }]);
expect(result.modified).toEqual(['copy.ts']);
});
it('classifies changed files as modified', () => {
const result = enrichFileStatuses([{ filename: 'chg.ts', status: 'changed' }]);
expect(result.modified).toEqual(['chg.ts']);
});
it('handles empty array input', () => {
const result = enrichFileStatuses([]);
expect(result.all).toEqual([]);
expect(result.added).toEqual([]);
expect(result.modified).toEqual([]);
expect(result.deleted).toEqual([]);
});
it('handles a mix of all statuses', () => {
const result = enrichFileStatuses([
{ filename: 'a.ts', status: 'added' },
{ filename: 'b.ts', status: 'removed' },
{ filename: 'c.ts', status: 'modified' },
{ filename: 'd.ts', status: 'renamed' },
]);
expect(result.added).toEqual(['a.ts']);
expect(result.deleted).toEqual(['b.ts']);
expect(result.modified).toEqual(['c.ts', 'd.ts']);
expect(result.all).toEqual(['a.ts', 'b.ts', 'c.ts', 'd.ts']);
});
});