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/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import { describe, it, expect, beforeEach, vi, afterEach } from 'vitest';
import type { Mocked } from 'vitest';
import { FileDiscoveryService } from './fileDiscoveryService.js';
import { GitIgnoreParser } from '../utils/gitIgnoreParser.js';
// Mock the GitIgnoreParser
vi.mock('../utils/gitIgnoreParser.js');
// Mock gitUtils module
vi.mock('../utils/gitUtils.js', () => ({
isGitRepository: vi.fn(() => true),
findGitRoot: vi.fn(() => '/test/project'),
}));
describe('FileDiscoveryService', () => {
let service: FileDiscoveryService;
let mockGitIgnoreParser: Mocked<GitIgnoreParser>;
const mockProjectRoot = '/test/project';
beforeEach(() => {
service = new FileDiscoveryService(mockProjectRoot);
mockGitIgnoreParser = {
initialize: vi.fn(),
isIgnored: vi.fn(),
getIgnoredPatterns: vi.fn(() => ['.git/**', 'node_modules/**']),
parseGitIgnoreContent: vi.fn(),
} as unknown as Mocked<GitIgnoreParser>;
vi.mocked(GitIgnoreParser).mockImplementation(() => mockGitIgnoreParser);
vi.clearAllMocks();
});
afterEach(() => {
vi.restoreAllMocks();
});
describe('initialization', () => {
it('should initialize git ignore parser by default', async () => {
await service.initialize();
expect(GitIgnoreParser).toHaveBeenCalledWith(mockProjectRoot);
expect(mockGitIgnoreParser.initialize).toHaveBeenCalled();
});
it('should not initialize git ignore parser when respectGitIgnore is false', async () => {
await service.initialize({ respectGitIgnore: false });
expect(GitIgnoreParser).not.toHaveBeenCalled();
expect(mockGitIgnoreParser.initialize).not.toHaveBeenCalled();
});
it('should handle initialization errors gracefully', async () => {
mockGitIgnoreParser.initialize.mockRejectedValue(
new Error('Init failed'),
);
await expect(service.initialize()).rejects.toThrow('Init failed');
});
});
describe('filterFiles', () => {
beforeEach(async () => {
mockGitIgnoreParser.isIgnored.mockImplementation(
(path: string) =>
path.includes('node_modules') || path.includes('.git'),
);
await service.initialize();
});
it('should filter out git-ignored files by default', () => {
const files = [
'src/index.ts',
'node_modules/package/index.js',
'README.md',
'.git/config',
'dist/bundle.js',
];
const filtered = service.filterFiles(files);
expect(filtered).toEqual(['src/index.ts', 'README.md', 'dist/bundle.js']);
});
it('should not filter files when respectGitIgnore is false', () => {
const files = [
'src/index.ts',
'node_modules/package/index.js',
'.git/config',
];
const filtered = service.filterFiles(files, { respectGitIgnore: false });
expect(filtered).toEqual(files);
});
it('should handle empty file list', () => {
const filtered = service.filterFiles([]);
expect(filtered).toEqual([]);
});
});
describe('shouldIgnoreFile', () => {
beforeEach(async () => {
mockGitIgnoreParser.isIgnored.mockImplementation((path: string) =>
path.includes('node_modules'),
);
await service.initialize();
});
it('should return true for git-ignored files', () => {
expect(service.shouldIgnoreFile('node_modules/package/index.js')).toBe(
true,
);
});
it('should return false for non-ignored files', () => {
expect(service.shouldIgnoreFile('src/index.ts')).toBe(false);
});
it('should return false when respectGitIgnore is false', () => {
expect(
service.shouldIgnoreFile('node_modules/package/index.js', {
respectGitIgnore: false,
}),
).toBe(false);
});
it('should return false when git ignore parser is not initialized', async () => {
const uninitializedService = new FileDiscoveryService(mockProjectRoot);
expect(
uninitializedService.shouldIgnoreFile('node_modules/package/index.js'),
).toBe(false);
});
});
describe('getIgnoreInfo', () => {
beforeEach(async () => {
await service.initialize();
});
it('should return git ignored patterns', () => {
const info = service.getIgnoreInfo();
expect(info.gitIgnored).toEqual(['.git/**', 'node_modules/**']);
});
it('should return empty arrays when git ignore parser is not initialized', async () => {
const uninitializedService = new FileDiscoveryService(mockProjectRoot);
const info = uninitializedService.getIgnoreInfo();
expect(info.gitIgnored).toEqual([]);
});
it('should handle git ignore parser returning null patterns', async () => {
mockGitIgnoreParser.getIgnoredPatterns.mockReturnValue([] as string[]);
const info = service.getIgnoreInfo();
expect(info.gitIgnored).toEqual([]);
});
});
describe('isGitRepository', () => {
it('should return true when isGitRepo is explicitly set to true in options', () => {
const result = service.isGitRepository({ isGitRepo: true });
expect(result).toBe(true);
});
it('should return false when isGitRepo is explicitly set to false in options', () => {
const result = service.isGitRepository({ isGitRepo: false });
expect(result).toBe(false);
});
it('should use git utility function when isGitRepo is not specified', () => {
const result = service.isGitRepository();
expect(result).toBe(true); // mocked to return true
});
it('should use git utility function when options are undefined', () => {
const result = service.isGitRepository(undefined);
expect(result).toBe(true); // mocked to return true
});
});
describe('initialization with isGitRepo config', () => {
it('should initialize git ignore parser when isGitRepo is true in options', async () => {
await service.initialize({ isGitRepo: true });
expect(GitIgnoreParser).toHaveBeenCalledWith(mockProjectRoot);
expect(mockGitIgnoreParser.initialize).toHaveBeenCalled();
});
it('should not initialize git ignore parser when isGitRepo is false in options', async () => {
await service.initialize({ isGitRepo: false });
expect(GitIgnoreParser).not.toHaveBeenCalled();
expect(mockGitIgnoreParser.initialize).not.toHaveBeenCalled();
});
it('should initialize git ignore parser when isGitRepo is not specified but respectGitIgnore is true', async () => {
await service.initialize({ respectGitIgnore: true });
expect(GitIgnoreParser).toHaveBeenCalledWith(mockProjectRoot);
expect(mockGitIgnoreParser.initialize).toHaveBeenCalled();
});
});
describe('shouldIgnoreFile with isGitRepo config', () => {
it('should respect isGitRepo option when checking if file should be ignored', async () => {
mockGitIgnoreParser.isIgnored.mockImplementation((path: string) =>
path.includes('node_modules'),
);
await service.initialize({ isGitRepo: true });
expect(
service.shouldIgnoreFile('node_modules/package/index.js', {
isGitRepo: true,
}),
).toBe(true);
expect(
service.shouldIgnoreFile('node_modules/package/index.js', {
isGitRepo: false,
}),
).toBe(false);
});
});
describe('edge cases', () => {
it('should handle relative project root paths', () => {
const relativeService = new FileDiscoveryService('./relative/path');
expect(relativeService).toBeInstanceOf(FileDiscoveryService);
});
it('should handle undefined options', async () => {
await service.initialize(undefined);
expect(GitIgnoreParser).toHaveBeenCalled();
});
it('should handle filterFiles with undefined options', async () => {
await service.initialize();
const files = ['src/index.ts'];
const filtered = service.filterFiles(files, undefined);
expect(filtered).toEqual(files);
});
});
});
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