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| 1 | +/* eslint-disable max-classes-per-file */ |
| 2 | +/* eslint-disable global-require */ |
| 3 | +/** |
| 4 | + * Unit tests for bundlerUtils.js |
| 5 | + * Tests bundler auto-detection and helper functions |
| 6 | + * |
| 7 | + * Note: These tests verify the bundler selection logic without actually |
| 8 | + * loading Rspack (which requires Node.js globals not available in jsdom). |
| 9 | + * We use require() inside tests to ensure proper mocking order. |
| 10 | + */ |
| 11 | + |
| 12 | +// Mock the bundler packages to avoid loading them |
| 13 | +jest.mock('webpack', () => ({ |
| 14 | + ProvidePlugin: class MockProvidePlugin {}, |
| 15 | + optimize: { LimitChunkCountPlugin: class MockLimitChunkCount {} }, |
| 16 | +})); |
| 17 | + |
| 18 | +jest.mock('@rspack/core', () => ({ |
| 19 | + ProvidePlugin: class MockRspackProvidePlugin {}, |
| 20 | + CssExtractRspackPlugin: class MockCssExtractRspackPlugin {}, |
| 21 | + optimize: { LimitChunkCountPlugin: class MockRspackLimitChunkCount {} }, |
| 22 | +})); |
| 23 | + |
| 24 | +jest.mock('mini-css-extract-plugin', () => class MiniCssExtractPlugin {}); |
| 25 | + |
| 26 | +describe('bundlerUtils', () => { |
| 27 | + let mockConfig; |
| 28 | + |
| 29 | + beforeEach(() => { |
| 30 | + // Reset module cache |
| 31 | + jest.resetModules(); |
| 32 | + |
| 33 | + // Create fresh mock config |
| 34 | + mockConfig = { assets_bundler: 'webpack' }; |
| 35 | + }); |
| 36 | + |
| 37 | + afterEach(() => { |
| 38 | + jest.clearAllMocks(); |
| 39 | + }); |
| 40 | + |
| 41 | + describe('getBundler()', () => { |
| 42 | + it('returns webpack when assets_bundler is webpack', () => { |
| 43 | + mockConfig.assets_bundler = 'webpack'; |
| 44 | + jest.doMock('shakapacker', () => ({ config: mockConfig })); |
| 45 | + const utils = require('../../../config/webpack/bundlerUtils'); |
| 46 | + |
| 47 | + const bundler = utils.getBundler(); |
| 48 | + |
| 49 | + expect(bundler).toBeDefined(); |
| 50 | + expect(bundler.ProvidePlugin).toBeDefined(); |
| 51 | + expect(bundler.ProvidePlugin.name).toBe('MockProvidePlugin'); |
| 52 | + }); |
| 53 | + |
| 54 | + it('returns rspack when assets_bundler is rspack', () => { |
| 55 | + mockConfig.assets_bundler = 'rspack'; |
| 56 | + jest.doMock('shakapacker', () => ({ config: mockConfig })); |
| 57 | + const utils = require('../../../config/webpack/bundlerUtils'); |
| 58 | + |
| 59 | + const bundler = utils.getBundler(); |
| 60 | + |
| 61 | + expect(bundler).toBeDefined(); |
| 62 | + // Rspack has CssExtractRspackPlugin |
| 63 | + expect(bundler.CssExtractRspackPlugin).toBeDefined(); |
| 64 | + expect(bundler.CssExtractRspackPlugin.name).toBe('MockCssExtractRspackPlugin'); |
| 65 | + }); |
| 66 | + }); |
| 67 | + |
| 68 | + describe('isRspack()', () => { |
| 69 | + it('returns false when assets_bundler is webpack', () => { |
| 70 | + mockConfig.assets_bundler = 'webpack'; |
| 71 | + jest.doMock('shakapacker', () => ({ config: mockConfig })); |
| 72 | + const utils = require('../../../config/webpack/bundlerUtils'); |
| 73 | + |
| 74 | + expect(utils.isRspack()).toBe(false); |
| 75 | + }); |
| 76 | + |
| 77 | + it('returns true when assets_bundler is rspack', () => { |
| 78 | + mockConfig.assets_bundler = 'rspack'; |
| 79 | + jest.doMock('shakapacker', () => ({ config: mockConfig })); |
| 80 | + const utils = require('../../../config/webpack/bundlerUtils'); |
| 81 | + |
| 82 | + expect(utils.isRspack()).toBe(true); |
| 83 | + }); |
| 84 | + }); |
| 85 | + |
| 86 | + describe('getCssExtractPlugin()', () => { |
| 87 | + it('returns mini-css-extract-plugin when using webpack', () => { |
| 88 | + mockConfig.assets_bundler = 'webpack'; |
| 89 | + jest.doMock('shakapacker', () => ({ config: mockConfig })); |
| 90 | + const utils = require('../../../config/webpack/bundlerUtils'); |
| 91 | + |
| 92 | + const plugin = utils.getCssExtractPlugin(); |
| 93 | + |
| 94 | + expect(plugin).toBeDefined(); |
| 95 | + expect(plugin.name).toBe('MiniCssExtractPlugin'); |
| 96 | + }); |
| 97 | + |
| 98 | + it('returns CssExtractRspackPlugin when using rspack', () => { |
| 99 | + mockConfig.assets_bundler = 'rspack'; |
| 100 | + jest.doMock('shakapacker', () => ({ config: mockConfig })); |
| 101 | + const utils = require('../../../config/webpack/bundlerUtils'); |
| 102 | + |
| 103 | + const plugin = utils.getCssExtractPlugin(); |
| 104 | + |
| 105 | + expect(plugin).toBeDefined(); |
| 106 | + // Rspack plugin class name |
| 107 | + expect(plugin.name).toBe('MockCssExtractRspackPlugin'); |
| 108 | + }); |
| 109 | + }); |
| 110 | + |
| 111 | + describe('Edge cases and error handling', () => { |
| 112 | + it('defaults to webpack when assets_bundler is undefined', () => { |
| 113 | + mockConfig.assets_bundler = undefined; |
| 114 | + jest.doMock('shakapacker', () => ({ config: mockConfig })); |
| 115 | + const utils = require('../../../config/webpack/bundlerUtils'); |
| 116 | + |
| 117 | + const bundler = utils.getBundler(); |
| 118 | + |
| 119 | + expect(bundler).toBeDefined(); |
| 120 | + expect(bundler.ProvidePlugin.name).toBe('MockProvidePlugin'); |
| 121 | + }); |
| 122 | + |
| 123 | + it('throws error for invalid bundler type', () => { |
| 124 | + mockConfig.assets_bundler = 'invalid-bundler'; |
| 125 | + jest.doMock('shakapacker', () => ({ config: mockConfig })); |
| 126 | + const utils = require('../../../config/webpack/bundlerUtils'); |
| 127 | + |
| 128 | + expect(() => utils.getBundler()).toThrow('Invalid assets_bundler: "invalid-bundler"'); |
| 129 | + expect(() => utils.getBundler()).toThrow('Must be one of: webpack, rspack'); |
| 130 | + }); |
| 131 | + |
| 132 | + it('returns cached bundler on subsequent calls', () => { |
| 133 | + mockConfig.assets_bundler = 'webpack'; |
| 134 | + jest.doMock('shakapacker', () => ({ config: mockConfig })); |
| 135 | + const utils = require('../../../config/webpack/bundlerUtils'); |
| 136 | + |
| 137 | + const bundler1 = utils.getBundler(); |
| 138 | + const bundler2 = utils.getBundler(); |
| 139 | + |
| 140 | + // Should return same instance (memoized) |
| 141 | + expect(bundler1).toBe(bundler2); |
| 142 | + }); |
| 143 | + }); |
| 144 | +}); |
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