feat(mcp): Add next_step guidance to initialize-project and add tests
Added detailed next_step guidance to the initialize-project MCP tool response, providing clear instructions about creating a PRD file and using parse-prd after initialization. This helps users understand the workflow better after project initialization. Also added comprehensive unit tests for the initialize-project MCP tool that: - Verify tool registration with correct parameters - Test command construction with proper argument formatting - Check special character escaping in command arguments - Validate success response formatting including the new next_step field - Test error handling and fallback mechanisms - Verify logging behavior The tests follow the same pattern as other MCP tool tests in the codebase.
This commit is contained in:
Eyal Toledano
342
tests/unit/mcp/tools/initialize-project.test.js
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342
tests/unit/mcp/tools/initialize-project.test.js
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/**
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* Tests for the initialize-project MCP tool
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*
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* Note: This test does NOT test the actual implementation. It tests that:
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* 1. The tool is registered correctly with the correct parameters
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* 2. Command construction works correctly with various arguments
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* 3. Error handling works as expected
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* 4. Response formatting is correct
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*
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* We do NOT import the real implementation - everything is mocked
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*/
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import { jest } from '@jest/globals';
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// Mock child_process.execSync
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const mockExecSync = jest.fn();
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jest.mock('child_process', () => ({
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execSync: mockExecSync
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}));
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// Mock the utility functions
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const mockCreateContentResponse = jest.fn((content) => ({
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content
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}));
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const mockCreateErrorResponse = jest.fn((message, details) => ({
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error: { message, details }
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}));
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jest.mock('../../../../mcp-server/src/tools/utils.js', () => ({
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createContentResponse: mockCreateContentResponse,
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createErrorResponse: mockCreateErrorResponse
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}));
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// Mock the z object from zod
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const mockZod = {
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object: jest.fn(() => mockZod),
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string: jest.fn(() => mockZod),
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boolean: jest.fn(() => mockZod),
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optional: jest.fn(() => mockZod),
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default: jest.fn(() => mockZod),
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describe: jest.fn(() => mockZod),
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_def: {
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shape: () => ({
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projectName: {},
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projectDescription: {},
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projectVersion: {},
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authorName: {},
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skipInstall: {},
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addAliases: {},
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yes: {}
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})
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}
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};
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jest.mock('zod', () => ({
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z: mockZod
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}));
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// Create our own simplified version of the registerInitializeProjectTool function
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const registerInitializeProjectTool = (server) => {
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server.addTool({
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name: 'initialize_project',
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description:
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"Initializes a new Task Master project structure in the current working directory by running 'task-master init'.",
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parameters: mockZod,
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execute: async (args, { log }) => {
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try {
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log.info(
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`Executing initialize_project with args: ${JSON.stringify(args)}`
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);
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// Construct the command arguments
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let command = 'npx task-master init';
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const cliArgs = [];
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if (args.projectName) {
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cliArgs.push(`--name "${args.projectName.replace(/"/g, '\\"')}"`);
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}
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if (args.projectDescription) {
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cliArgs.push(
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`--description "${args.projectDescription.replace(/"/g, '\\"')}"`
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);
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}
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if (args.projectVersion) {
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cliArgs.push(
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`--version "${args.projectVersion.replace(/"/g, '\\"')}"`
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);
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}
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if (args.authorName) {
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cliArgs.push(`--author "${args.authorName.replace(/"/g, '\\"')}"`);
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}
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if (args.skipInstall) cliArgs.push('--skip-install');
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if (args.addAliases) cliArgs.push('--aliases');
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if (args.yes) cliArgs.push('--yes');
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command += ' ' + cliArgs.join(' ');
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log.info(`Constructed command: ${command}`);
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// Execute the command
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const output = mockExecSync(command, {
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encoding: 'utf8',
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stdio: 'pipe',
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timeout: 300000
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});
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log.info(`Initialization output:\n${output}`);
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// Return success response
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return mockCreateContentResponse({
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message: 'Project initialized successfully.',
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next_step:
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'Now that the project is initialized, the next step is to create the tasks by parsing a PRD. This will create the tasks folder and the initial task files. The parse-prd tool will required a PRD file',
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output: output
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});
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} catch (error) {
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// Catch errors
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const errorMessage = `Project initialization failed: ${error.message}`;
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const errorDetails =
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error.stderr?.toString() || error.stdout?.toString() || error.message;
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log.error(`${errorMessage}\nDetails: ${errorDetails}`);
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// Return error response
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return mockCreateErrorResponse(errorMessage, { details: errorDetails });
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}
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}
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});
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};
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describe('Initialize Project MCP Tool', () => {
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// Mock server and logger
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let mockServer;
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let executeFunction;
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const mockLogger = {
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debug: jest.fn(),
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info: jest.fn(),
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warn: jest.fn(),
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error: jest.fn()
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};
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beforeEach(() => {
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// Clear all mocks before each test
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jest.clearAllMocks();
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// Create mock server
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mockServer = {
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addTool: jest.fn((config) => {
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executeFunction = config.execute;
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})
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};
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// Default mock behavior
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mockExecSync.mockReturnValue('Project initialized successfully.');
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// Register the tool to capture the tool definition
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registerInitializeProjectTool(mockServer);
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});
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test('registers the tool with correct name and parameters', () => {
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// Check that addTool was called
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expect(mockServer.addTool).toHaveBeenCalledTimes(1);
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// Extract the tool definition from the mock call
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const toolDefinition = mockServer.addTool.mock.calls[0][0];
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// Verify tool properties
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expect(toolDefinition.name).toBe('initialize_project');
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expect(toolDefinition.description).toContain(
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'Initializes a new Task Master project'
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);
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expect(toolDefinition).toHaveProperty('parameters');
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expect(toolDefinition).toHaveProperty('execute');
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});
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test('constructs command with proper arguments', async () => {
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// Create arguments with all parameters
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const args = {
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projectName: 'Test Project',
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projectDescription: 'A project for testing',
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projectVersion: '1.0.0',
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authorName: 'Test Author',
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skipInstall: true,
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addAliases: true,
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yes: true
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};
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// Execute the tool
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await executeFunction(args, { log: mockLogger });
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// Verify execSync was called with the expected command
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expect(mockExecSync).toHaveBeenCalledTimes(1);
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const command = mockExecSync.mock.calls[0][0];
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// Check that the command includes npx task-master init
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expect(command).toContain('npx task-master init');
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// Verify each argument is correctly formatted in the command
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expect(command).toContain('--name "Test Project"');
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expect(command).toContain('--description "A project for testing"');
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expect(command).toContain('--version "1.0.0"');
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expect(command).toContain('--author "Test Author"');
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expect(command).toContain('--skip-install');
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expect(command).toContain('--aliases');
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expect(command).toContain('--yes');
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});
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test('properly escapes special characters in arguments', async () => {
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// Create arguments with special characters
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const args = {
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projectName: 'Test "Quoted" Project',
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projectDescription: 'A "special" project for testing'
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};
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// Execute the tool
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await executeFunction(args, { log: mockLogger });
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// Get the command that was executed
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const command = mockExecSync.mock.calls[0][0];
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// Verify quotes were properly escaped
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expect(command).toContain('--name "Test \\"Quoted\\" Project"');
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expect(command).toContain(
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'--description "A \\"special\\" project for testing"'
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);
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});
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test('returns success response when command succeeds', async () => {
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// Set up the mock to return specific output
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const outputMessage = 'Project initialized successfully.';
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mockExecSync.mockReturnValueOnce(outputMessage);
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// Execute the tool
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const result = await executeFunction({}, { log: mockLogger });
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// Verify createContentResponse was called with the right arguments
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expect(mockCreateContentResponse).toHaveBeenCalledWith(
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expect.objectContaining({
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message: 'Project initialized successfully.',
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next_step: expect.any(String),
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output: outputMessage
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})
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);
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// Verify the returned result has the expected structure
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expect(result).toHaveProperty('content');
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expect(result.content).toHaveProperty('message');
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expect(result.content).toHaveProperty('next_step');
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expect(result.content).toHaveProperty('output');
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expect(result.content.output).toBe(outputMessage);
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});
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test('returns error response when command fails', async () => {
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// Create an error to be thrown
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const error = new Error('Command failed');
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error.stdout = 'Some standard output';
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error.stderr = 'Some error output';
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// Make the mock throw the error
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mockExecSync.mockImplementationOnce(() => {
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throw error;
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});
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// Execute the tool
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const result = await executeFunction({}, { log: mockLogger });
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// Verify createErrorResponse was called with the right arguments
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expect(mockCreateErrorResponse).toHaveBeenCalledWith(
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'Project initialization failed: Command failed',
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expect.objectContaining({
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details: 'Some error output'
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})
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);
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// Verify the returned result has the expected structure
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expect(result).toHaveProperty('error');
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expect(result.error).toHaveProperty('message');
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expect(result.error.message).toContain('Project initialization failed');
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});
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test('logs information about the execution', async () => {
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// Execute the tool
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await executeFunction({}, { log: mockLogger });
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// Verify that logging occurred
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expect(mockLogger.info).toHaveBeenCalledWith(
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expect.stringContaining('Executing initialize_project')
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);
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expect(mockLogger.info).toHaveBeenCalledWith(
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expect.stringContaining('Constructed command')
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);
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expect(mockLogger.info).toHaveBeenCalledWith(
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expect.stringContaining('Initialization output')
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);
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});
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test('uses fallback to stdout if stderr is not available in error', async () => {
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// Create an error with only stdout
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const error = new Error('Command failed');
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error.stdout = 'Some standard output with error details';
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// No stderr property
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// Make the mock throw the error
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mockExecSync.mockImplementationOnce(() => {
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throw error;
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});
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// Execute the tool
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await executeFunction({}, { log: mockLogger });
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// Verify createErrorResponse was called with stdout as details
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expect(mockCreateErrorResponse).toHaveBeenCalledWith(
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expect.any(String),
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expect.objectContaining({
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details: 'Some standard output with error details'
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})
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);
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});
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test('logs error details when command fails', async () => {
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// Create an error
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const error = new Error('Command failed');
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error.stderr = 'Some detailed error message';
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// Make the mock throw the error
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mockExecSync.mockImplementationOnce(() => {
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throw error;
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});
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// Execute the tool
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await executeFunction({}, { log: mockLogger });
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// Verify error logging
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expect(mockLogger.error).toHaveBeenCalledWith(
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expect.stringContaining('Project initialization failed')
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);
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expect(mockLogger.error).toHaveBeenCalledWith(
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expect.stringContaining('Some detailed error message')
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);
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});
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});
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