Files
gemini-cli/packages/core/src/tools/code_parser.test.ts
2025-06-07 12:07:58 -07:00

783 lines
29 KiB
TypeScript

/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import {
vi,
describe,
it,
expect,
beforeEach,
afterEach,
Mocked,
} from 'vitest';
import { CodeParserTool, CodeParserToolParams } from './code_parser.js';
import { Config } from '../config/config.js';
import fs from 'fs/promises';
import { Stats, PathLike } from 'fs'; // Added Stats import
import path from 'path';
import os from 'os';
import actualFs from 'fs'; // For actual fs operations in setup
// Mock fs/promises
vi.mock('fs/promises');
// Mock tree-sitter and its language grammars
const mockTreeSitterParse = vi.fn();
const mockSetLanguage = vi.fn();
vi.mock('tree-sitter', () => ({
default: vi.fn().mockImplementation(() => ({
setLanguage: mockSetLanguage,
parse: mockTreeSitterParse,
})),
}));
const mockPythonGrammar = vi.hoisted(() => ({ name: 'python' }));
const mockJavaGrammar = vi.hoisted(() => ({ name: 'java' }));
const mockGoGrammar = vi.hoisted(() => ({ name: 'go' }));
const mockCSharpGrammar = vi.hoisted(() => ({ name: 'csharp' }));
const mockTypeScriptGrammar = vi.hoisted(() => ({ name: 'typescript' }));
const mockTSXGrammar = vi.hoisted(() => ({ name: 'tsx' }));
const mockRustGrammar = vi.hoisted(() => ({ name: 'rust' })); // Added for Rust
vi.mock('tree-sitter-python', () => ({ default: mockPythonGrammar }));
vi.mock('tree-sitter-java', () => ({ default: mockJavaGrammar }));
vi.mock('tree-sitter-go', () => ({ default: mockGoGrammar }));
vi.mock('tree-sitter-c-sharp', () => ({ default: mockCSharpGrammar }));
vi.mock('tree-sitter-typescript', () => ({
default: {
typescript: mockTypeScriptGrammar,
tsx: mockTSXGrammar,
},
}));
vi.mock('tree-sitter-rust', () => ({ default: mockRustGrammar })); // Added for Rust
describe('CodeParserTool', () => {
let tempRootDir: string;
let tool: CodeParserTool;
let mockConfig: Config;
const abortSignal = new AbortController().signal;
// Use Mocked type for fs/promises
let mockFs: Mocked<typeof fs>;
beforeEach(() => {
const tempDirPrefix = path.join(os.tmpdir(), 'code-parser-tool-root-');
tempRootDir = actualFs.mkdtempSync(tempDirPrefix);
tempRootDir = path.resolve(tempRootDir);
mockConfig = { get: vi.fn() } as unknown as Config;
tool = new CodeParserTool(tempRootDir, mockConfig);
mockFs = fs as Mocked<typeof fs>;
mockTreeSitterParse.mockReset();
mockSetLanguage.mockReset();
mockFs.stat.mockReset();
mockFs.readFile.mockReset();
mockFs.readdir.mockReset();
mockTreeSitterParse.mockReturnValue({
rootNode: { toString: () => '(mock_ast)' },
});
});
afterEach(() => {
if (actualFs.existsSync(tempRootDir)) {
actualFs.rmSync(tempRootDir, { recursive: true, force: true });
}
vi.clearAllMocks();
});
describe('constructor and schema', () => {
it('should have correct name', () => {
expect(tool.name).toBe('code_parser');
});
it('should have correct schema definition', () => {
const schema = tool.schema.parameters!;
expect(schema.type).toBe('object');
expect(schema.properties).toHaveProperty('path');
expect(schema.properties!.path.type).toBe('string');
expect(schema.properties!.path.description).toContain('absolute path');
expect(schema.properties).toHaveProperty('languages');
expect(schema.properties!.languages.type).toBe('array');
expect(schema.properties!.languages.description).toContain('go');
expect(schema.properties!.languages.description).toContain('csharp');
expect(schema.properties!.languages.description).toContain('typescript');
expect(schema.properties!.languages.description).toContain('tsx');
expect(schema.properties!.languages.description).toContain('javascript');
expect(schema.properties!.languages.description).toContain('rust'); // Added for Rust
expect(schema.required).toEqual(['path']);
});
});
describe('validateToolParams', () => {
it('should return null for valid path with languages', () => {
const params: CodeParserToolParams = {
path: path.join(tempRootDir, 'dir'),
languages: [
'python',
'go',
'csharp',
'typescript',
'tsx',
'javascript',
],
};
expect(tool.validateToolParams(params)).toBeNull();
});
it('should return error for relative path', () => {
const params: CodeParserToolParams = { path: 'file.py' };
expect(tool.validateToolParams(params)).toMatch(/Path must be absolute/);
});
it('should return error for path outside root directory', () => {
const outsidePath = path.resolve(
os.tmpdir(),
'some-other-dir',
'file.py',
);
if (outsidePath.startsWith(tempRootDir)) {
console.warn(
'Skipping outside root test due to overlapping temp/outside paths',
);
return;
}
const params: CodeParserToolParams = { path: outsidePath };
expect(tool.validateToolParams(params)).toMatch(
/Path must be within the root directory/,
);
});
it('should return error if languages is not an array of strings', () => {
const params = {
path: path.join(tempRootDir, 'file.py'),
languages: [123],
} as unknown as CodeParserToolParams;
expect(tool.validateToolParams(params)).toBe(
'Languages parameter must be an array of strings.',
);
});
});
describe('getDescription', () => {
it('should return "Parse <shortened_relative_path>"', () => {
const filePath = path.join(tempRootDir, 'src', 'app', 'main.py');
const params: CodeParserToolParams = { path: filePath };
expect(tool.getDescription(params)).toBe('Parse src/app/main.py');
});
});
describe('execute', () => {
// --- Error Handling Tests ---
it('should return validation error if params are invalid', async () => {
const params: CodeParserToolParams = { path: 'relative/path.txt' };
const result = await tool.execute(params, abortSignal);
expect(result.llmContent).toMatch(
/Error: Invalid parameters provided. Reason: Path must be absolute/,
);
expect(result.returnDisplay).toBe('Error: Failed to execute tool.');
});
it('should return error if target path does not exist', async () => {
const targetPath = path.join(tempRootDir, 'nonexistent.py');
mockFs.stat.mockRejectedValue({
code: 'ENOENT',
} as NodeJS.ErrnoException);
const params: CodeParserToolParams = { path: targetPath };
const result = await tool.execute(params, abortSignal);
expect(result.llmContent).toMatch(
/Error: Path not found or inaccessible/,
);
expect(result.returnDisplay).toMatch(
/Error: Path not found or inaccessible/,
);
});
it('should return error if target path is not a file or directory', async () => {
const targetPath = path.join(tempRootDir, 'neither_file_nor_dir');
mockFs.stat.mockResolvedValue({
isFile: () => false,
isDirectory: () => false,
size: 0,
} as Stats);
const params: CodeParserToolParams = { path: targetPath };
const result = await tool.execute(params, abortSignal);
expect(result.llmContent).toMatch(
/Error: Path is not a file or directory/,
);
expect(result.returnDisplay).toMatch(
/Error: Path is not a file or directory/,
);
});
it('should return error if no supported languages are specified or available', async () => {
const targetPath = path.join(tempRootDir, 'file.py');
mockFs.stat.mockResolvedValue({
isFile: () => true,
isDirectory: () => false,
size: 100,
} as Stats);
// eslint-disable-next-line @typescript-eslint/no-explicit-any
const originalGetLanguageParser = (tool as any).getLanguageParser;
// eslint-disable-next-line @typescript-eslint/no-explicit-any
(tool as any).getLanguageParser = vi.fn().mockReturnValue(undefined);
const params: CodeParserToolParams = {
path: targetPath,
languages: ['fantasy-lang'],
};
const result = await tool.execute(params, abortSignal);
expect(result.llmContent).toMatch(
/Error: No supported languages specified for parsing/,
);
expect(result.returnDisplay).toMatch(
/Error: No supported languages to parse/,
);
// eslint-disable-next-line @typescript-eslint/no-explicit-any
(tool as any).getLanguageParser = originalGetLanguageParser; // Restore
});
// --- Single File Parsing Tests ---
it('should parse a single Python file successfully', async () => {
const targetPath = path.join(tempRootDir, 'test.py');
const fileContent = 'print("hello")';
mockFs.stat.mockResolvedValue({
isFile: () => true,
isDirectory: () => false,
size: fileContent.length,
} as Stats);
mockFs.readFile.mockResolvedValue(fileContent);
mockTreeSitterParse.mockReturnValue({
rootNode: { toString: () => '(python_ast)' },
});
const params: CodeParserToolParams = { path: targetPath };
const result = await tool.execute(params, abortSignal);
expect(mockSetLanguage).toHaveBeenCalledWith(mockPythonGrammar);
expect(mockTreeSitterParse).toHaveBeenCalledWith(fileContent);
expect(result.llmContent).toBe(
`Parsed code from ${targetPath}:\n-------------${targetPath}-------------\n(python_ast)\n\n`,
);
expect(result.returnDisplay).toBe('Parsed 1 file(s).');
});
it('should parse a single Java file successfully', async () => {
const targetPath = path.join(tempRootDir, 'Test.java');
const fileContent = 'class Test {}';
mockFs.stat.mockResolvedValue({
isFile: () => true,
isDirectory: () => false,
size: fileContent.length,
} as Stats);
mockFs.readFile.mockResolvedValue(fileContent);
mockTreeSitterParse.mockReturnValue({
rootNode: { toString: () => '(java_ast)' },
});
const params: CodeParserToolParams = { path: targetPath };
const result = await tool.execute(params, abortSignal);
expect(mockSetLanguage).toHaveBeenCalledWith(mockJavaGrammar);
expect(mockTreeSitterParse).toHaveBeenCalledWith(fileContent);
expect(result.llmContent).toBe(
`Parsed code from ${targetPath}:\n-------------${targetPath}-------------\n(java_ast)\n\n`,
);
expect(result.returnDisplay).toBe('Parsed 1 file(s).');
});
it('should parse a single Go file successfully', async () => {
const targetPath = path.join(tempRootDir, 'main.go');
const fileContent = 'package main\nfunc main(){}';
mockFs.stat.mockResolvedValue({
isFile: () => true,
isDirectory: () => false,
size: fileContent.length,
} as Stats);
mockFs.readFile.mockResolvedValue(fileContent);
mockTreeSitterParse.mockReturnValue({
rootNode: { toString: () => '(go_ast)' },
});
const params: CodeParserToolParams = { path: targetPath };
const result = await tool.execute(params, abortSignal);
expect(mockSetLanguage).toHaveBeenCalledWith(mockGoGrammar);
expect(mockTreeSitterParse).toHaveBeenCalledWith(fileContent);
expect(result.llmContent).toBe(
`Parsed code from ${targetPath}:\n-------------${targetPath}-------------\n(go_ast)\n\n`,
);
expect(result.returnDisplay).toBe('Parsed 1 file(s).');
});
it('should parse a single C# file successfully', async () => {
const targetPath = path.join(tempRootDir, 'Program.cs');
const fileContent =
'namespace HelloWorld { class Program { static void Main(string[] args) { System.Console.WriteLine("Hello World!"); } } }';
mockFs.stat.mockResolvedValue({
isFile: () => true,
isDirectory: () => false,
size: fileContent.length,
} as Stats);
mockFs.readFile.mockResolvedValue(fileContent);
mockTreeSitterParse.mockReturnValue({
rootNode: { toString: () => '(csharp_ast)' },
});
const params: CodeParserToolParams = { path: targetPath };
const result = await tool.execute(params, abortSignal);
expect(mockSetLanguage).toHaveBeenCalledWith(mockCSharpGrammar);
expect(mockTreeSitterParse).toHaveBeenCalledWith(fileContent);
expect(result.llmContent).toBe(
`Parsed code from ${targetPath}:\n-------------${targetPath}-------------\n(csharp_ast)\n\n`,
);
expect(result.returnDisplay).toBe('Parsed 1 file(s).');
});
it('should parse a single TypeScript (.ts) file successfully', async () => {
const targetPath = path.join(tempRootDir, 'app.ts');
const fileContent = 'const x: number = 10;';
mockFs.stat.mockResolvedValue({
isFile: () => true,
isDirectory: () => false,
size: fileContent.length,
} as Stats);
mockFs.readFile.mockResolvedValue(fileContent);
mockTreeSitterParse.mockReturnValue({
rootNode: { toString: () => '(ts_ast)' },
});
const params: CodeParserToolParams = { path: targetPath };
const result = await tool.execute(params, abortSignal);
expect(mockSetLanguage).toHaveBeenCalledWith(mockTypeScriptGrammar);
expect(mockTreeSitterParse).toHaveBeenCalledWith(fileContent);
expect(result.llmContent).toBe(
`Parsed code from ${targetPath}:\n-------------${targetPath}-------------\n(ts_ast)\n\n`,
);
expect(result.returnDisplay).toBe('Parsed 1 file(s).');
});
it('should parse a single TSX (.tsx) file successfully', async () => {
const targetPath = path.join(tempRootDir, 'component.tsx');
const fileContent = 'const Comp = () => <div />;';
mockFs.stat.mockResolvedValue({
isFile: () => true,
isDirectory: () => false,
size: fileContent.length,
} as Stats);
mockFs.readFile.mockResolvedValue(fileContent);
mockTreeSitterParse.mockReturnValue({
rootNode: { toString: () => '(tsx_ast)' },
});
const params: CodeParserToolParams = { path: targetPath };
const result = await tool.execute(params, abortSignal);
expect(mockSetLanguage).toHaveBeenCalledWith(mockTSXGrammar);
expect(mockTreeSitterParse).toHaveBeenCalledWith(fileContent);
expect(result.llmContent).toBe(
`Parsed code from ${targetPath}:\n-------------${targetPath}-------------\n(tsx_ast)\n\n`,
);
expect(result.returnDisplay).toBe('Parsed 1 file(s).');
});
it('should parse a single JavaScript (.js) file successfully', async () => {
const targetPath = path.join(tempRootDir, 'script.js');
const fileContent = 'console.log("hello");';
mockFs.stat.mockResolvedValue({
isFile: () => true,
isDirectory: () => false,
size: fileContent.length,
} as Stats);
mockFs.readFile.mockResolvedValue(fileContent);
mockTreeSitterParse.mockReturnValue({
rootNode: { toString: () => '(js_ast)' },
});
const params: CodeParserToolParams = { path: targetPath };
const result = await tool.execute(params, abortSignal);
expect(mockSetLanguage).toHaveBeenCalledWith(mockTypeScriptGrammar); // Uses TypeScript grammar for JS
expect(mockTreeSitterParse).toHaveBeenCalledWith(fileContent);
expect(result.llmContent).toBe(
`Parsed code from ${targetPath}:\n-------------${targetPath}-------------\n(js_ast)\n\n`,
);
expect(result.returnDisplay).toBe('Parsed 1 file(s).');
});
it('should parse a single Rust (.rs) file successfully', async () => {
const targetPath = path.join(tempRootDir, 'main.rs');
const fileContent = 'fn main() { println!("Hello, Rust!"); }';
mockFs.stat.mockResolvedValue({
isFile: () => true,
isDirectory: () => false,
size: fileContent.length,
} as Stats);
mockFs.readFile.mockResolvedValue(fileContent);
mockTreeSitterParse.mockReturnValue({
rootNode: { toString: () => '(rust_ast)' },
});
const params: CodeParserToolParams = { path: targetPath };
const result = await tool.execute(params, abortSignal);
expect(mockSetLanguage).toHaveBeenCalledWith(mockRustGrammar);
expect(mockTreeSitterParse).toHaveBeenCalledWith(fileContent);
expect(result.llmContent).toBe(
`Parsed code from ${targetPath}:\n-------------${targetPath}-------------\n(rust_ast)\n\n`,
);
expect(result.returnDisplay).toBe('Parsed 1 file(s).');
});
it('should parse a JavaScript JSX (.jsx) file successfully (using tsx parser)', async () => {
const targetPath = path.join(tempRootDir, 'component.jsx');
const fileContent = 'const Comp = () => <div />;';
mockFs.stat.mockResolvedValue({
isFile: () => true,
isDirectory: () => false,
size: fileContent.length,
} as Stats);
mockFs.readFile.mockResolvedValue(fileContent);
mockTreeSitterParse.mockReturnValue({
rootNode: { toString: () => '(jsx_ast)' },
});
const params: CodeParserToolParams = { path: targetPath };
const result = await tool.execute(params, abortSignal);
expect(mockSetLanguage).toHaveBeenCalledWith(mockTSXGrammar);
expect(mockTreeSitterParse).toHaveBeenCalledWith(fileContent);
expect(result.llmContent).toBe(
`Parsed code from ${targetPath}:\n-------------${targetPath}-------------\n(jsx_ast)\n\n`,
);
expect(result.returnDisplay).toBe('Parsed 1 file(s).');
});
it('should return error for unsupported file type if specified directly', async () => {
const targetPath = path.join(tempRootDir, 'notes.txt');
mockFs.stat.mockResolvedValue({
isFile: () => true,
isDirectory: () => false,
size: 10,
} as Stats);
const params: CodeParserToolParams = { path: targetPath };
const result = await tool.execute(params, abortSignal);
expect(result.llmContent).toMatch(
/Error: File .* is not of a supported language type/,
);
expect(result.returnDisplay).toMatch(
/Error: Unsupported file type or language/,
);
});
it('should skip file if it exceeds maxFileSize', async () => {
const targetPath = path.join(tempRootDir, 'large.py');
mockFs.stat.mockResolvedValue({
isFile: () => true,
isDirectory: () => false,
size: 1024 * 1024 + 1,
} as Stats); // 1MB + 1 byte
const params: CodeParserToolParams = { path: targetPath };
const result = await tool.execute(params, abortSignal);
expect(mockFs.readFile).not.toHaveBeenCalled();
expect(result.llmContent).toMatch(
/Error: Could not parse file .*large.py/,
);
expect(result.returnDisplay).toBe('Error: Failed to parse file.');
});
it('should return error if parsing a supported file fails internally', async () => {
const targetPath = path.join(tempRootDir, 'broken.py');
const fileContent = 'print("hello")';
mockFs.stat.mockResolvedValue({
isFile: () => true,
isDirectory: () => false,
size: fileContent.length,
} as Stats);
mockFs.readFile.mockResolvedValue(fileContent);
mockTreeSitterParse.mockImplementation(() => {
throw new Error('TreeSitterCrashed');
});
const params: CodeParserToolParams = { path: targetPath };
const result = await tool.execute(params, abortSignal);
expect(result.llmContent).toMatch(
/Error: Could not parse file .*broken.py/,
);
expect(result.returnDisplay).toMatch(/Error: Failed to parse file./);
});
// --- Directory Parsing Tests ---
it('should parse supported files in a directory (including Go, C#, TS, JS, TSX)', async () => {
const dirPath = path.join(tempRootDir, 'src');
const files = [
'main.py',
'helper.java',
'service.go',
'App.cs',
'logic.ts',
'ui.tsx',
'utils.js',
'main.rs', // Added Rust file
'config.txt',
];
const pythonContent = 'import os';
const javaContent = 'public class Helper {}';
const goContent = 'package main';
const csharpContent = 'public class App {}';
const tsContent = 'let val: number = 1;';
const tsxContent = 'const MyComp = () => <p />;';
const jsContent = 'function hello() {}';
const rustContent = 'fn start() {}'; // Added Rust content
mockFs.stat.mockImplementation(async (p) => {
if (p === dirPath)
return { isFile: () => false, isDirectory: () => true } as Stats;
if (p === path.join(dirPath, 'main.py'))
return {
isFile: () => true,
isDirectory: () => false,
size: pythonContent.length,
} as Stats;
if (p === path.join(dirPath, 'helper.java'))
return {
isFile: () => true,
isDirectory: () => false,
size: javaContent.length,
} as Stats;
if (p === path.join(dirPath, 'service.go'))
return {
isFile: () => true,
isDirectory: () => false,
size: goContent.length,
} as Stats;
if (p === path.join(dirPath, 'App.cs'))
return {
isFile: () => true,
isDirectory: () => false,
size: csharpContent.length,
} as Stats;
if (p === path.join(dirPath, 'logic.ts'))
return {
isFile: () => true,
isDirectory: () => false,
size: tsContent.length,
} as Stats;
if (p === path.join(dirPath, 'ui.tsx'))
return {
isFile: () => true,
isDirectory: () => false,
size: tsxContent.length,
} as Stats;
if (p === path.join(dirPath, 'utils.js'))
return {
isFile: () => true,
isDirectory: () => false,
size: jsContent.length,
} as Stats;
if (p === path.join(dirPath, 'main.rs'))
// Added for Rust
return {
isFile: () => true,
isDirectory: () => false,
size: rustContent.length,
} as Stats;
if (p === path.join(dirPath, 'config.txt'))
return {
isFile: () => true,
isDirectory: () => false,
size: 10,
} as Stats;
throw { code: 'ENOENT' };
});
mockFs.readdir.mockImplementation(
vi.fn(async (p: PathLike): Promise<string[]> => {
const dirPath = path.join(tempRootDir, 'src'); // Path for this specific test
if (p === dirPath) {
return files; // files is in scope for this test
}
throw new Error(
`fs.readdir mock: Unhandled path ${p} in test 'should parse supported files in a directory'`,
);
}) as unknown as typeof fs.readdir,
);
mockFs.readFile.mockImplementation(async (p) => {
if (p === path.join(dirPath, 'main.py')) return pythonContent;
if (p === path.join(dirPath, 'helper.java')) return javaContent;
if (p === path.join(dirPath, 'service.go')) return goContent;
if (p === path.join(dirPath, 'App.cs')) return csharpContent;
if (p === path.join(dirPath, 'logic.ts')) return tsContent;
if (p === path.join(dirPath, 'ui.tsx')) return tsxContent;
if (p === path.join(dirPath, 'utils.js')) return jsContent;
if (p === path.join(dirPath, 'main.rs')) return rustContent; // Added for Rust
return '';
});
mockTreeSitterParse.mockImplementation((content) => {
if (content === pythonContent)
return { rootNode: { toString: () => '(py_ast_dir)' } };
if (content === javaContent)
return { rootNode: { toString: () => '(java_ast_dir)' } };
if (content === goContent)
return { rootNode: { toString: () => '(go_ast_dir)' } };
if (content === csharpContent)
return { rootNode: { toString: () => '(csharp_ast_dir)' } };
if (content === tsContent)
return { rootNode: { toString: () => '(ts_ast_dir)' } };
if (content === tsxContent)
return { rootNode: { toString: () => '(tsx_ast_dir)' } };
if (content === jsContent)
return { rootNode: { toString: () => '(js_ast_dir)' } };
if (content === rustContent)
// Added for Rust
return { rootNode: { toString: () => '(rust_ast_dir)' } };
return { rootNode: { toString: () => '(other_ast)' } };
});
const params: CodeParserToolParams = { path: dirPath };
const result = await tool.execute(params, abortSignal);
expect(result.llmContent).toContain(
`-------------${path.join(dirPath, 'main.py')}-------------\n(py_ast_dir)\n`,
);
expect(result.llmContent).toContain(
`-------------${path.join(dirPath, 'helper.java')}-------------\n(java_ast_dir)\n`,
);
expect(result.llmContent).toContain(
`-------------${path.join(dirPath, 'service.go')}-------------\n(go_ast_dir)\n`,
);
expect(result.llmContent).toContain(
`-------------${path.join(dirPath, 'App.cs')}-------------\n(csharp_ast_dir)\n`,
);
expect(result.llmContent).toContain(
`-------------${path.join(dirPath, 'logic.ts')}-------------\n(ts_ast_dir)\n`,
);
expect(result.llmContent).toContain(
`-------------${path.join(dirPath, 'ui.tsx')}-------------\n(tsx_ast_dir)\n`,
);
expect(result.llmContent).toContain(
`-------------${path.join(dirPath, 'utils.js')}-------------\n(js_ast_dir)\n`,
);
expect(result.llmContent).toContain(
// Added for Rust
`-------------${path.join(dirPath, 'main.rs')}-------------\n(rust_ast_dir)\n`,
);
expect(result.llmContent).not.toContain('config.txt');
expect(result.returnDisplay).toBe('Parsed 8 file(s).'); // Updated count
});
it('should only parse languages specified in the languages parameter for directory', async () => {
const dirPath = path.join(tempRootDir, 'mixed_lang_project');
const files = [
'script.py',
'Main.java',
'another.py',
'app.go',
'Logic.cs',
'index.ts',
'view.tsx',
'helper.js',
'main.rs', // Added Rust file
];
mockFs.stat.mockImplementation(async (p) => {
if (p === dirPath)
return { isFile: () => false, isDirectory: () => true } as Stats;
return {
isFile: () => true,
isDirectory: () => false,
size: 10,
} as Stats;
});
mockFs.readdir.mockImplementation(
vi.fn(async (p: PathLike): Promise<string[]> => {
// dirPath and files are in scope for this specific test
if (p === dirPath) {
return files;
}
throw new Error(
`fs.readdir mock: Unhandled path ${p} in test 'should only parse languages specified'`,
);
}) as unknown as typeof fs.readdir,
);
mockFs.readFile.mockResolvedValue('content');
const params: CodeParserToolParams = {
path: dirPath,
languages: [
'java',
'go',
'csharp',
'typescript',
'tsx',
'javascript',
'rust',
], // Added rust
};
const result = await tool.execute(params, abortSignal);
expect(result.llmContent).toContain(path.join(dirPath, 'Main.java'));
expect(result.llmContent).toContain(path.join(dirPath, 'app.go'));
expect(result.llmContent).toContain(path.join(dirPath, 'Logic.cs'));
expect(result.llmContent).toContain(path.join(dirPath, 'index.ts'));
expect(result.llmContent).toContain(path.join(dirPath, 'view.tsx'));
expect(result.llmContent).toContain(path.join(dirPath, 'helper.js'));
expect(result.llmContent).toContain(path.join(dirPath, 'main.rs')); // Added for Rust
expect(result.llmContent).not.toContain('script.py');
expect(result.llmContent).not.toContain('another.py');
expect(result.returnDisplay).toBe('Parsed 7 file(s).'); // Updated count
});
it('should return "Directory is empty" for an empty directory', async () => {
const dirPath = path.join(tempRootDir, 'empty_dir');
mockFs.stat.mockResolvedValue({
isFile: () => false,
isDirectory: () => true,
} as Stats);
mockFs.readdir.mockResolvedValue([]);
const params: CodeParserToolParams = { path: dirPath };
const result = await tool.execute(params, abortSignal);
expect(result.llmContent).toBe(`Directory ${dirPath} is empty.`);
expect(result.returnDisplay).toBe('Directory is empty.');
});
it('should handle error if fs.readdir fails', async () => {
const dirPath = path.join(tempRootDir, 'unreadable_dir');
mockFs.stat.mockResolvedValue({
isFile: () => false,
isDirectory: () => true,
} as Stats);
mockFs.readdir.mockRejectedValue(new Error('Permission denied'));
const params: CodeParserToolParams = { path: dirPath };
const result = await tool.execute(params, abortSignal);
expect(result.llmContent).toMatch(
/Error listing or processing directory/,
);
expect(result.returnDisplay).toMatch(
/Error: Failed to process directory./,
);
});
});
describe('requiresConfirmation', () => {
it('should return null', async () => {
const params: CodeParserToolParams = { path: 'anypath' };
expect(await tool.requiresConfirmation(params)).toBeNull();
});
});
});