389 lines
15 KiB
TypeScript
389 lines
15 KiB
TypeScript
/**
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* @license
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* Copyright 2025 Google LLC
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* SPDX-License-Identifier: Apache-2.0
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*/
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import { describe, it, expect, beforeEach, afterEach, vi } from 'vitest';
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import { GrepTool, GrepToolParams } from './grep.js';
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import path from 'path';
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import fs from 'fs/promises';
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import os from 'os';
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import { Config } from '../config/config.js';
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import { createMockWorkspaceContext } from '../test-utils/mockWorkspaceContext.js';
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// Mock the child_process module to control grep/git grep behavior
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vi.mock('child_process', () => ({
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spawn: vi.fn(() => ({
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on: (event: string, cb: (...args: unknown[]) => void) => {
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if (event === 'error' || event === 'close') {
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// Simulate command not found or error for git grep and system grep
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// to force it to fall back to JS implementation.
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setTimeout(() => cb(1), 0); // cb(1) for error/close
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}
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},
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stdout: { on: vi.fn() },
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stderr: { on: vi.fn() },
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})),
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}));
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describe('GrepTool', () => {
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let tempRootDir: string;
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let grepTool: GrepTool;
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const abortSignal = new AbortController().signal;
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const mockConfig = {
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getTargetDir: () => tempRootDir,
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getWorkspaceContext: () => createMockWorkspaceContext(tempRootDir),
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} as unknown as Config;
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beforeEach(async () => {
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tempRootDir = await fs.mkdtemp(path.join(os.tmpdir(), 'grep-tool-root-'));
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grepTool = new GrepTool(mockConfig);
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// Create some test files and directories
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await fs.writeFile(
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path.join(tempRootDir, 'fileA.txt'),
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'hello world\nsecond line with world',
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);
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await fs.writeFile(
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path.join(tempRootDir, 'fileB.js'),
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'const foo = "bar";\nfunction baz() { return "hello"; }',
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);
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await fs.mkdir(path.join(tempRootDir, 'sub'));
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await fs.writeFile(
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path.join(tempRootDir, 'sub', 'fileC.txt'),
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'another world in sub dir',
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);
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await fs.writeFile(
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path.join(tempRootDir, 'sub', 'fileD.md'),
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'# Markdown file\nThis is a test.',
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);
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});
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afterEach(async () => {
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await fs.rm(tempRootDir, { recursive: true, force: true });
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});
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describe('validateToolParams', () => {
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it('should return null for valid params (pattern only)', () => {
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const params: GrepToolParams = { pattern: 'hello' };
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expect(grepTool.validateToolParams(params)).toBeNull();
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});
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it('should return null for valid params (pattern and path)', () => {
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const params: GrepToolParams = { pattern: 'hello', path: '.' };
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expect(grepTool.validateToolParams(params)).toBeNull();
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});
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it('should return null for valid params (pattern, path, and include)', () => {
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const params: GrepToolParams = {
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pattern: 'hello',
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path: '.',
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include: '*.txt',
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};
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expect(grepTool.validateToolParams(params)).toBeNull();
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});
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it('should return error if pattern is missing', () => {
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const params = { path: '.' } as unknown as GrepToolParams;
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expect(grepTool.validateToolParams(params)).toBe(
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`params must have required property 'pattern'`,
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);
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});
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it('should return error for invalid regex pattern', () => {
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const params: GrepToolParams = { pattern: '[[' };
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expect(grepTool.validateToolParams(params)).toContain(
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'Invalid regular expression pattern',
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);
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});
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it('should return error if path does not exist', () => {
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const params: GrepToolParams = { pattern: 'hello', path: 'nonexistent' };
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// Check for the core error message, as the full path might vary
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expect(grepTool.validateToolParams(params)).toContain(
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'Failed to access path stats for',
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);
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expect(grepTool.validateToolParams(params)).toContain('nonexistent');
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});
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it('should return error if path is a file, not a directory', async () => {
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const filePath = path.join(tempRootDir, 'fileA.txt');
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const params: GrepToolParams = { pattern: 'hello', path: filePath };
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expect(grepTool.validateToolParams(params)).toContain(
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`Path is not a directory: ${filePath}`,
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);
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});
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});
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describe('execute', () => {
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it('should find matches for a simple pattern in all files', async () => {
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const params: GrepToolParams = { pattern: 'world' };
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const invocation = grepTool.build(params);
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const result = await invocation.execute(abortSignal);
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expect(result.llmContent).toContain(
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'Found 3 matches for pattern "world" in the workspace directory',
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);
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expect(result.llmContent).toContain('File: fileA.txt');
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expect(result.llmContent).toContain('L1: hello world');
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expect(result.llmContent).toContain('L2: second line with world');
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expect(result.llmContent).toContain(
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`File: ${path.join('sub', 'fileC.txt')}`,
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);
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expect(result.llmContent).toContain('L1: another world in sub dir');
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expect(result.returnDisplay).toBe('Found 3 matches');
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});
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it('should find matches in a specific path', async () => {
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const params: GrepToolParams = { pattern: 'world', path: 'sub' };
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const invocation = grepTool.build(params);
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const result = await invocation.execute(abortSignal);
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expect(result.llmContent).toContain(
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'Found 1 match for pattern "world" in path "sub"',
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);
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expect(result.llmContent).toContain('File: fileC.txt'); // Path relative to 'sub'
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expect(result.llmContent).toContain('L1: another world in sub dir');
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expect(result.returnDisplay).toBe('Found 1 match');
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});
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it('should find matches with an include glob', async () => {
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const params: GrepToolParams = { pattern: 'hello', include: '*.js' };
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const invocation = grepTool.build(params);
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const result = await invocation.execute(abortSignal);
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expect(result.llmContent).toContain(
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'Found 1 match for pattern "hello" in the workspace directory (filter: "*.js"):',
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);
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expect(result.llmContent).toContain('File: fileB.js');
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expect(result.llmContent).toContain(
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'L2: function baz() { return "hello"; }',
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);
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expect(result.returnDisplay).toBe('Found 1 match');
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});
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it('should find matches with an include glob and path', async () => {
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await fs.writeFile(
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path.join(tempRootDir, 'sub', 'another.js'),
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'const greeting = "hello";',
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);
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const params: GrepToolParams = {
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pattern: 'hello',
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path: 'sub',
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include: '*.js',
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};
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const invocation = grepTool.build(params);
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const result = await invocation.execute(abortSignal);
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expect(result.llmContent).toContain(
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'Found 1 match for pattern "hello" in path "sub" (filter: "*.js")',
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);
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expect(result.llmContent).toContain('File: another.js');
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expect(result.llmContent).toContain('L1: const greeting = "hello";');
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expect(result.returnDisplay).toBe('Found 1 match');
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});
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it('should return "No matches found" when pattern does not exist', async () => {
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const params: GrepToolParams = { pattern: 'nonexistentpattern' };
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const invocation = grepTool.build(params);
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const result = await invocation.execute(abortSignal);
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expect(result.llmContent).toContain(
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'No matches found for pattern "nonexistentpattern" in the workspace directory.',
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);
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expect(result.returnDisplay).toBe('No matches found');
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});
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it('should handle regex special characters correctly', async () => {
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const params: GrepToolParams = { pattern: 'foo.*bar' }; // Matches 'const foo = "bar";'
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const invocation = grepTool.build(params);
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const result = await invocation.execute(abortSignal);
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expect(result.llmContent).toContain(
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'Found 1 match for pattern "foo.*bar" in the workspace directory:',
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);
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expect(result.llmContent).toContain('File: fileB.js');
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expect(result.llmContent).toContain('L1: const foo = "bar";');
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});
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it('should be case-insensitive by default (JS fallback)', async () => {
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const params: GrepToolParams = { pattern: 'HELLO' };
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const invocation = grepTool.build(params);
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const result = await invocation.execute(abortSignal);
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expect(result.llmContent).toContain(
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'Found 2 matches for pattern "HELLO" in the workspace directory:',
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);
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expect(result.llmContent).toContain('File: fileA.txt');
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expect(result.llmContent).toContain('L1: hello world');
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expect(result.llmContent).toContain('File: fileB.js');
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expect(result.llmContent).toContain(
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'L2: function baz() { return "hello"; }',
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);
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});
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it('should throw an error if params are invalid', async () => {
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const params = { path: '.' } as unknown as GrepToolParams; // Invalid: pattern missing
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expect(() => grepTool.build(params)).toThrow(
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/params must have required property 'pattern'/,
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);
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});
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});
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describe('multi-directory workspace', () => {
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it('should search across all workspace directories when no path is specified', async () => {
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// Create additional directory with test files
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const secondDir = await fs.mkdtemp(
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path.join(os.tmpdir(), 'grep-tool-second-'),
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);
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await fs.writeFile(
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path.join(secondDir, 'other.txt'),
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'hello from second directory\nworld in second',
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);
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await fs.writeFile(
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path.join(secondDir, 'another.js'),
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'function world() { return "test"; }',
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);
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// Create a mock config with multiple directories
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const multiDirConfig = {
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getTargetDir: () => tempRootDir,
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getWorkspaceContext: () =>
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createMockWorkspaceContext(tempRootDir, [secondDir]),
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} as unknown as Config;
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const multiDirGrepTool = new GrepTool(multiDirConfig);
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const params: GrepToolParams = { pattern: 'world' };
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const invocation = multiDirGrepTool.build(params);
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const result = await invocation.execute(abortSignal);
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// Should find matches in both directories
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expect(result.llmContent).toContain(
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'Found 5 matches for pattern "world"',
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);
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// Matches from first directory
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expect(result.llmContent).toContain('fileA.txt');
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expect(result.llmContent).toContain('L1: hello world');
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expect(result.llmContent).toContain('L2: second line with world');
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expect(result.llmContent).toContain('fileC.txt');
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expect(result.llmContent).toContain('L1: another world in sub dir');
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// Matches from second directory (with directory name prefix)
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const secondDirName = path.basename(secondDir);
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expect(result.llmContent).toContain(
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`File: ${path.join(secondDirName, 'other.txt')}`,
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);
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expect(result.llmContent).toContain('L2: world in second');
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expect(result.llmContent).toContain(
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`File: ${path.join(secondDirName, 'another.js')}`,
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);
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expect(result.llmContent).toContain('L1: function world()');
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// Clean up
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await fs.rm(secondDir, { recursive: true, force: true });
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});
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it('should search only specified path within workspace directories', async () => {
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// Create additional directory
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const secondDir = await fs.mkdtemp(
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path.join(os.tmpdir(), 'grep-tool-second-'),
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);
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await fs.mkdir(path.join(secondDir, 'sub'));
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await fs.writeFile(
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path.join(secondDir, 'sub', 'test.txt'),
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'hello from second sub directory',
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);
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// Create a mock config with multiple directories
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const multiDirConfig = {
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getTargetDir: () => tempRootDir,
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getWorkspaceContext: () =>
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createMockWorkspaceContext(tempRootDir, [secondDir]),
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} as unknown as Config;
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const multiDirGrepTool = new GrepTool(multiDirConfig);
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// Search only in the 'sub' directory of the first workspace
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const params: GrepToolParams = { pattern: 'world', path: 'sub' };
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const invocation = multiDirGrepTool.build(params);
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const result = await invocation.execute(abortSignal);
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// Should only find matches in the specified sub directory
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expect(result.llmContent).toContain(
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'Found 1 match for pattern "world" in path "sub"',
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);
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expect(result.llmContent).toContain('File: fileC.txt');
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expect(result.llmContent).toContain('L1: another world in sub dir');
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// Should not contain matches from second directory
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expect(result.llmContent).not.toContain('test.txt');
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// Clean up
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await fs.rm(secondDir, { recursive: true, force: true });
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});
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});
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describe('getDescription', () => {
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it('should generate correct description with pattern only', () => {
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const params: GrepToolParams = { pattern: 'testPattern' };
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const invocation = grepTool.build(params);
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expect(invocation.getDescription()).toBe("'testPattern'");
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});
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it('should generate correct description with pattern and include', () => {
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const params: GrepToolParams = {
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pattern: 'testPattern',
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include: '*.ts',
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};
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const invocation = grepTool.build(params);
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expect(invocation.getDescription()).toBe("'testPattern' in *.ts");
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});
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it('should generate correct description with pattern and path', async () => {
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const dirPath = path.join(tempRootDir, 'src', 'app');
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await fs.mkdir(dirPath, { recursive: true });
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const params: GrepToolParams = {
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pattern: 'testPattern',
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path: path.join('src', 'app'),
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};
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const invocation = grepTool.build(params);
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// The path will be relative to the tempRootDir, so we check for containment.
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expect(invocation.getDescription()).toContain("'testPattern' within");
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expect(invocation.getDescription()).toContain(path.join('src', 'app'));
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});
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it('should indicate searching across all workspace directories when no path specified', () => {
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// Create a mock config with multiple directories
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const multiDirConfig = {
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getTargetDir: () => tempRootDir,
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getWorkspaceContext: () =>
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createMockWorkspaceContext(tempRootDir, ['/another/dir']),
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} as unknown as Config;
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const multiDirGrepTool = new GrepTool(multiDirConfig);
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const params: GrepToolParams = { pattern: 'testPattern' };
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const invocation = multiDirGrepTool.build(params);
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expect(invocation.getDescription()).toBe(
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"'testPattern' across all workspace directories",
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);
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});
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it('should generate correct description with pattern, include, and path', async () => {
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const dirPath = path.join(tempRootDir, 'src', 'app');
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await fs.mkdir(dirPath, { recursive: true });
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const params: GrepToolParams = {
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pattern: 'testPattern',
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include: '*.ts',
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path: path.join('src', 'app'),
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};
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const invocation = grepTool.build(params);
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expect(invocation.getDescription()).toContain(
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"'testPattern' in *.ts within",
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);
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expect(invocation.getDescription()).toContain(path.join('src', 'app'));
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});
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it('should use ./ for root path in description', () => {
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const params: GrepToolParams = { pattern: 'testPattern', path: '.' };
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const invocation = grepTool.build(params);
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expect(invocation.getDescription()).toBe("'testPattern' within ./");
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});
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});
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});
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