| 1 | /** |
| 2 | * Copyright (c) Meta Platforms, Inc. and affiliates. |
| 3 | * |
| 4 | * This source code is licensed under the MIT license found in the |
| 5 | * LICENSE file in the root directory of this source tree. |
| 6 | * |
| 7 | * @flow |
| 8 | */ |
| 9 | |
| 10 | describe('Stylex plugin utils', () => { |
| 11 | let getStyleXData; |
| 12 | let styleElements; |
| 13 | |
| 14 | function defineStyles(style) { |
| 15 | const styleElement = document.createElement('style'); |
| 16 | styleElement.type = 'text/css'; |
| 17 | styleElement.appendChild(document.createTextNode(style)); |
| 18 | |
| 19 | styleElements.push(styleElement); |
| 20 | |
| 21 | document.head.appendChild(styleElement); |
| 22 | } |
| 23 | |
| 24 | beforeEach(() => { |
| 25 | getStyleXData = require('../utils').getStyleXData; |
| 26 | |
| 27 | styleElements = []; |
| 28 | }); |
| 29 | |
| 30 | afterEach(() => { |
| 31 | styleElements.forEach(styleElement => { |
| 32 | document.head.removeChild(styleElement); |
| 33 | }); |
| 34 | }); |
| 35 | |
| 36 | it('should gracefully handle empty values', () => { |
| 37 | expect(getStyleXData(null)).toMatchInlineSnapshot(` |
| 38 | { |
| 39 | "resolvedStyles": {}, |
| 40 | "sources": [], |
| 41 | } |
| 42 | `); |
| 43 | |
| 44 | expect(getStyleXData(undefined)).toMatchInlineSnapshot(` |
| 45 | { |
| 46 | "resolvedStyles": {}, |
| 47 | "sources": [], |
| 48 | } |
| 49 | `); |
| 50 | |
| 51 | expect(getStyleXData('')).toMatchInlineSnapshot(` |
| 52 | { |
| 53 | "resolvedStyles": {}, |
| 54 | "sources": [], |
| 55 | } |
| 56 | `); |
| 57 | |
| 58 | expect(getStyleXData([undefined])).toMatchInlineSnapshot(` |
| 59 | { |
| 60 | "resolvedStyles": {}, |
| 61 | "sources": [], |
| 62 | } |
| 63 | `); |
| 64 | }); |
| 65 | |
| 66 | it('should support simple style objects', () => { |
| 67 | defineStyles(` |
| 68 | .foo { |
| 69 | display: flex; |
| 70 | } |
| 71 | .bar: { |
| 72 | align-items: center; |
| 73 | } |
| 74 | .baz { |
| 75 | flex-direction: center; |
| 76 | } |
| 77 | `); |
| 78 | |
| 79 | expect( |
| 80 | getStyleXData({ |
| 81 | // The source/module styles are defined in |
| 82 | Example__style: 'Example__style', |
| 83 | |
| 84 | // Map of CSS style to StyleX class name, booleans, or nested structures |
| 85 | display: 'foo', |
| 86 | flexDirection: 'baz', |
| 87 | alignItems: 'bar', |
| 88 | }), |
| 89 | ).toMatchInlineSnapshot(` |
| 90 | { |
| 91 | "resolvedStyles": { |
| 92 | "alignItems": "center", |
| 93 | "display": "flex", |
| 94 | "flexDirection": "center", |
| 95 | }, |
| 96 | "sources": [ |
| 97 | "Example__style", |
| 98 | ], |
| 99 | } |
| 100 | `); |
| 101 | }); |
| 102 | |
| 103 | it('should support multiple style objects', () => { |
| 104 | defineStyles(` |
| 105 | .foo { |
| 106 | display: flex; |
| 107 | } |
| 108 | .bar: { |
| 109 | align-items: center; |
| 110 | } |
| 111 | .baz { |
| 112 | flex-direction: center; |
| 113 | } |
| 114 | `); |
| 115 | |
| 116 | expect( |
| 117 | getStyleXData([ |
| 118 | {Example1__style: 'Example1__style', display: 'foo'}, |
| 119 | { |
| 120 | Example2__style: 'Example2__style', |
| 121 | flexDirection: 'baz', |
| 122 | alignItems: 'bar', |
| 123 | }, |
| 124 | ]), |
| 125 | ).toMatchInlineSnapshot(` |
| 126 | { |
| 127 | "resolvedStyles": { |
| 128 | "alignItems": "center", |
| 129 | "display": "flex", |
| 130 | "flexDirection": "center", |
| 131 | }, |
| 132 | "sources": [ |
| 133 | "Example1__style", |
| 134 | "Example2__style", |
| 135 | ], |
| 136 | } |
| 137 | `); |
| 138 | }); |
| 139 | |
| 140 | it('should filter empty rules', () => { |
| 141 | defineStyles(` |
| 142 | .foo { |
| 143 | display: flex; |
| 144 | } |
| 145 | .bar: { |
| 146 | align-items: center; |
| 147 | } |
| 148 | .baz { |
| 149 | flex-direction: center; |
| 150 | } |
| 151 | `); |
| 152 | |
| 153 | expect( |
| 154 | getStyleXData([ |
| 155 | false, |
| 156 | {Example1__style: 'Example1__style', display: 'foo'}, |
| 157 | false, |
| 158 | false, |
| 159 | { |
| 160 | Example2__style: 'Example2__style', |
| 161 | flexDirection: 'baz', |
| 162 | alignItems: 'bar', |
| 163 | }, |
| 164 | false, |
| 165 | ]), |
| 166 | ).toMatchInlineSnapshot(` |
| 167 | { |
| 168 | "resolvedStyles": { |
| 169 | "alignItems": "center", |
| 170 | "display": "flex", |
| 171 | "flexDirection": "center", |
| 172 | }, |
| 173 | "sources": [ |
| 174 | "Example1__style", |
| 175 | "Example2__style", |
| 176 | ], |
| 177 | } |
| 178 | `); |
| 179 | }); |
| 180 | |
| 181 | it('should support pseudo-classes', () => { |
| 182 | defineStyles(` |
| 183 | .foo { |
| 184 | color: black; |
| 185 | } |
| 186 | .bar: { |
| 187 | color: blue; |
| 188 | } |
| 189 | .baz { |
| 190 | text-decoration: none; |
| 191 | } |
| 192 | `); |
| 193 | |
| 194 | expect( |
| 195 | getStyleXData({ |
| 196 | // The source/module styles are defined in |
| 197 | Example__style: 'Example__style', |
| 198 | |
| 199 | // Map of CSS style to StyleX class name, booleans, or nested structures |
| 200 | color: 'foo', |
| 201 | ':hover': { |
| 202 | color: 'bar', |
| 203 | textDecoration: 'baz', |
| 204 | }, |
| 205 | }), |
| 206 | ).toMatchInlineSnapshot(` |
| 207 | { |
| 208 | "resolvedStyles": { |
| 209 | ":hover": { |
| 210 | "color": "blue", |
| 211 | "textDecoration": "none", |
| 212 | }, |
| 213 | "color": "black", |
| 214 | }, |
| 215 | "sources": [ |
| 216 | "Example__style", |
| 217 | ], |
| 218 | } |
| 219 | `); |
| 220 | }); |
| 221 | |
| 222 | it('should support nested selectors', () => { |
| 223 | defineStyles(` |
| 224 | .foo { |
| 225 | display: flex; |
| 226 | } |
| 227 | .bar: { |
| 228 | align-items: center; |
| 229 | } |
| 230 | .baz { |
| 231 | flex-direction: center; |
| 232 | } |
| 233 | `); |
| 234 | |
| 235 | expect( |
| 236 | getStyleXData([ |
| 237 | {Example1__style: 'Example1__style', display: 'foo'}, |
| 238 | false, |
| 239 | [ |
| 240 | false, |
| 241 | {Example2__style: 'Example2__style', flexDirection: 'baz'}, |
| 242 | {Example3__style: 'Example3__style', alignItems: 'bar'}, |
| 243 | ], |
| 244 | false, |
| 245 | ]), |
| 246 | ).toMatchInlineSnapshot(` |
| 247 | { |
| 248 | "resolvedStyles": { |
| 249 | "alignItems": "center", |
| 250 | "display": "flex", |
| 251 | "flexDirection": "center", |
| 252 | }, |
| 253 | "sources": [ |
| 254 | "Example1__style", |
| 255 | "Example2__style", |
| 256 | "Example3__style", |
| 257 | ], |
| 258 | } |
| 259 | `); |
| 260 | }); |
| 261 | }); |