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| 1 | +const generator = require('../generator') |
| 2 | +const fs = require('fs') |
| 3 | +jest.mock('fs') |
| 4 | + |
| 5 | +// Mock the generator api |
| 6 | +let completionCb |
| 7 | +const mockApi = { |
| 8 | + render: jest.fn(), |
| 9 | + onCreateComplete: jest.fn(cb => { |
| 10 | + completionCb = cb |
| 11 | + }), |
| 12 | + extendPackage: jest.fn(), |
| 13 | + // Make sure api.resolve(path) is used |
| 14 | + resolve: jest.fn(path => 'apiResolve_' + path), |
| 15 | + hasPlugin: jest.fn() |
| 16 | +} |
| 17 | +beforeEach(() => { |
| 18 | + // Reset mock status |
| 19 | + jest.clearAllMocks() |
| 20 | +}) |
| 21 | + |
| 22 | +test('extends gitignore if it exists', () => { |
| 23 | + fs.readFileSync.mockImplementation((path, encoding) => { |
| 24 | + // Check that utf8 encoding is set |
| 25 | + expect(encoding).toBe('utf8') |
| 26 | + // return mock content |
| 27 | + return 'existing_content' |
| 28 | + }) |
| 29 | + // Mock existence of .gitignore |
| 30 | + fs.existsSync = jest.fn(path => path === 'apiResolve_./.gitignore') |
| 31 | + // Run the generator with mock api |
| 32 | + generator(mockApi) |
| 33 | + // Run the onCreateComplete callback |
| 34 | + completionCb() |
| 35 | + // New .gitignore should have been written |
| 36 | + expect(fs.writeFileSync).toBeCalledWith( |
| 37 | + 'apiResolve_./.gitignore', |
| 38 | + 'existing_content\n#Electron-builder output\n/dist_electron' |
| 39 | + ) |
| 40 | +}) |
| 41 | +test("doesn't modify .gitignore if it doesn't exist", () => { |
| 42 | + // Mock lack of .gitignore |
| 43 | + fs.existsSync = jest.fn(path => !(path === 'apiResolve_./.gitignore')) |
| 44 | + // Run the generator with mock api |
| 45 | + generator(mockApi) |
| 46 | + // Run the onCreateComplete callback |
| 47 | + completionCb() |
| 48 | + // New .gitignore should not have been read from or written |
| 49 | + expect(fs.writeFileSync).not.toBeCalledWith( |
| 50 | + 'apiResolve_./.gitignore', |
| 51 | + 'existing_content\n#Electron-builder output\n/dist_electron' |
| 52 | + ) |
| 53 | + expect(fs.readFileSync).not.toBeCalledWith('apiResolve_./.gitignore', 'utf8') |
| 54 | + // Only index should have been read/written |
| 55 | + expect(fs.writeFileSync).toHaveBeenCalledTimes(1) |
| 56 | + expect(fs.readFileSync).toHaveBeenCalledTimes(1) |
| 57 | +}) |
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