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/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import { vi, describe, it, expect, beforeEach, afterEach } from 'vitest';
import * as fs from 'fs';
import * as path from 'path';
import { initCommand } from './initCommand.js';
import { createMockCommandContext } from '../../test-utils/mockCommandContext.js';
import { type CommandContext } from './types.js';
// Mock the 'fs' module
vi.mock('fs', () => ({
existsSync: vi.fn(),
writeFileSync: vi.fn(),
}));
describe('initCommand', () => {
let mockContext: CommandContext;
const targetDir = '/test/dir';
const geminiMdPath = path.join(targetDir, 'GEMINI.md');
beforeEach(() => {
// Create a fresh mock context for each test
mockContext = createMockCommandContext({
services: {
config: {
getTargetDir: () => targetDir,
},
},
});
});
afterEach(() => {
// Clear all mocks after each test
vi.clearAllMocks();
});
it('should inform the user if GEMINI.md already exists', async () => {
// Arrange: Simulate that the file exists
vi.mocked(fs.existsSync).mockReturnValue(true);
// Act: Run the command's action
const result = await initCommand.action!(mockContext, '');
// Assert: Check for the correct informational message
expect(result).toEqual({
type: 'message',
messageType: 'info',
content:
'A GEMINI.md file already exists in this directory. No changes were made.',
});
// Assert: Ensure no file was written
expect(fs.writeFileSync).not.toHaveBeenCalled();
});
it('should create GEMINI.md and submit a prompt if it does not exist', async () => {
// Arrange: Simulate that the file does not exist
vi.mocked(fs.existsSync).mockReturnValue(false);
// Act: Run the command's action
const result = await initCommand.action!(mockContext, '');
// Assert: Check that writeFileSync was called correctly
expect(fs.writeFileSync).toHaveBeenCalledWith(geminiMdPath, '', 'utf8');
// Assert: Check that an informational message was added to the UI
expect(mockContext.ui.addItem).toHaveBeenCalledWith(
{
type: 'info',
text: 'Empty GEMINI.md created. Now analyzing the project to populate it.',
},
expect.any(Number),
);
// Assert: Check that the correct prompt is submitted
expect(result.type).toBe('submit_prompt');
expect(result.content).toContain(
'You are an AI agent that brings the power of Gemini',
);
});
it('should return an error if config is not available', async () => {
// Arrange: Create a context without config
const noConfigContext = createMockCommandContext();
if (noConfigContext.services) {
noConfigContext.services.config = null;
}
// Act: Run the command's action
const result = await initCommand.action!(noConfigContext, '');
// Assert: Check for the correct error message
expect(result).toEqual({
type: 'message',
messageType: 'error',
content: 'Configuration not available.',
});
});
});
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