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/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import * as fs from 'fs';
import { vi, describe, it, expect, beforeEach } from 'vitest';
import * as fsPromises from 'fs/promises';
import * as gitUtils from './gitUtils.js';
import { bfsFileSearch } from './bfsFileSearch.js';
import { FileDiscoveryService } from '../services/fileDiscoveryService.js';
vi.mock('fs');
vi.mock('fs/promises');
vi.mock('./gitUtils.js');
const createMockDirent = (name: string, isFile: boolean): fs.Dirent => {
const dirent = new fs.Dirent();
dirent.name = name;
dirent.isFile = () => isFile;
dirent.isDirectory = () => !isFile;
return dirent;
};
// Type for the specific overload we're using
type ReaddirWithFileTypes = (
path: fs.PathLike,
options: { withFileTypes: true },
) => Promise<fs.Dirent[]>;
describe('bfsFileSearch', () => {
beforeEach(() => {
vi.resetAllMocks();
});
it('should find a file in the root directory', async () => {
const mockFs = vi.mocked(fsPromises);
const mockReaddir = mockFs.readdir as unknown as ReaddirWithFileTypes;
vi.mocked(mockReaddir).mockResolvedValue([
createMockDirent('file1.txt', true),
createMockDirent('file2.txt', true),
]);
const result = await bfsFileSearch('/test', { fileName: 'file1.txt' });
expect(result).toEqual(['/test/file1.txt']);
});
it('should find a file in a subdirectory', async () => {
const mockFs = vi.mocked(fsPromises);
const mockReaddir = mockFs.readdir as unknown as ReaddirWithFileTypes;
vi.mocked(mockReaddir).mockImplementation(async (dir) => {
if (dir === '/test') {
return [createMockDirent('subdir', false)];
}
if (dir === '/test/subdir') {
return [createMockDirent('file1.txt', true)];
}
return [];
});
const result = await bfsFileSearch('/test', { fileName: 'file1.txt' });
expect(result).toEqual(['/test/subdir/file1.txt']);
});
it('should ignore specified directories', async () => {
const mockFs = vi.mocked(fsPromises);
const mockReaddir = mockFs.readdir as unknown as ReaddirWithFileTypes;
vi.mocked(mockReaddir).mockImplementation(async (dir) => {
if (dir === '/test') {
return [
createMockDirent('subdir1', false),
createMockDirent('subdir2', false),
];
}
if (dir === '/test/subdir1') {
return [createMockDirent('file1.txt', true)];
}
if (dir === '/test/subdir2') {
return [createMockDirent('file1.txt', true)];
}
return [];
});
const result = await bfsFileSearch('/test', {
fileName: 'file1.txt',
ignoreDirs: ['subdir2'],
});
expect(result).toEqual(['/test/subdir1/file1.txt']);
});
it('should respect maxDirs limit', async () => {
const mockFs = vi.mocked(fsPromises);
const mockReaddir = mockFs.readdir as unknown as ReaddirWithFileTypes;
vi.mocked(mockReaddir).mockImplementation(async (dir) => {
if (dir === '/test') {
return [
createMockDirent('subdir1', false),
createMockDirent('subdir2', false),
];
}
if (dir === '/test/subdir1') {
return [createMockDirent('file1.txt', true)];
}
if (dir === '/test/subdir2') {
return [createMockDirent('file1.txt', true)];
}
return [];
});
const result = await bfsFileSearch('/test', {
fileName: 'file1.txt',
maxDirs: 2,
});
expect(result).toEqual(['/test/subdir1/file1.txt']);
});
it('should respect .gitignore files', async () => {
const mockFs = vi.mocked(fsPromises);
const mockGitUtils = vi.mocked(gitUtils);
mockGitUtils.isGitRepository.mockReturnValue(true);
const mockReaddir = mockFs.readdir as unknown as ReaddirWithFileTypes;
vi.mocked(mockReaddir).mockImplementation(async (dir) => {
if (dir === '/test') {
return [
createMockDirent('.gitignore', true),
createMockDirent('subdir1', false),
createMockDirent('subdir2', false),
];
}
if (dir === '/test/subdir1') {
return [createMockDirent('file1.txt', true)];
}
if (dir === '/test/subdir2') {
return [createMockDirent('file1.txt', true)];
}
return [];
});
vi.mocked(fs).readFileSync.mockReturnValue('subdir2');
const fileService = new FileDiscoveryService('/test');
const result = await bfsFileSearch('/test', {
fileName: 'file1.txt',
fileService,
});
expect(result).toEqual(['/test/subdir1/file1.txt']);
});
it('should respect .geminiignore files', async () => {
const mockFs = vi.mocked(fsPromises);
const mockGitUtils = vi.mocked(gitUtils);
mockGitUtils.isGitRepository.mockReturnValue(false);
const mockReaddir = mockFs.readdir as unknown as ReaddirWithFileTypes;
vi.mocked(mockReaddir).mockImplementation(async (dir) => {
if (dir === '/test') {
return [
createMockDirent('.geminiignore', true),
createMockDirent('subdir1', false),
createMockDirent('subdir2', false),
];
}
if (dir === '/test/subdir1') {
return [createMockDirent('file1.txt', true)];
}
if (dir === '/test/subdir2') {
return [createMockDirent('file1.txt', true)];
}
return [];
});
vi.mocked(fs).readFileSync.mockReturnValue('subdir2');
const fileService = new FileDiscoveryService('/test');
const result = await bfsFileSearch('/test', {
fileName: 'file1.txt',
fileService,
fileFilteringOptions: {
respectGitIgnore: true,
respectGeminiIgnore: true,
},
});
expect(result).toEqual(['/test/subdir1/file1.txt']);
});
});
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