PostCSS support

demo/__tests__/style.test.tsx

@@ -2,6 +2,10 @@ import { render } from '@testing-library/react';
 
 import App from '../App';
 
+function getDocumentHTML() {
+  return document.documentElement.outerHTML.replace(/\r\n|\n|\r/g, '\n');
+}
+
 describe('Style', () => {
   it('should render CSS correctly in JSDOM', () => {
     render(<App />);
@@ -10,46 +14,49 @@ describe('Style', () => {
     // Global CSS
     // TODO: Global CSS is saved into the `.cache` folder, so we can't assert it directly within the JSDOM
     // Imported CSS
-    expect(document.documentElement.outerHTML).toContain(
-      '<link rel="stylesheet" href="/demo/App.css">',
+    expect(getDocumentHTML()).toContain(
+      `.App {
+  text-align: center;
+}`,
     );
-    expect(document.documentElement.outerHTML).toContain(
-      '<link rel="stylesheet" href="/demo/assets/css/App.css">',
+    expect(getDocumentHTML()).toContain(
+      `.logo2 {
+  max-width: 300px;
+  background: yellow;
+}`,
     );
 
     // styled-components
-    expect(document.documentElement.outerHTML).toContain(
+    expect(getDocumentHTML()).toContain(
       '<style data-styled="active" data-styled-version="5.3.5">',
     );
-    expect(document.documentElement.outerHTML).toContain('.dgihId{color:red;}');
+    expect(getDocumentHTML()).toContain('.dgihId{color:red;}');
 
     // emotion
-    expect(document.documentElement.outerHTML).toContain(
+    expect(getDocumentHTML()).toContain(
       '<style data-emotion="css" data-s="">.css-2m18qq{color:orange;}</style>',
     );
 
     // CSS Modules
     // Global
     // TODO: not implemented yet
     // Import
-    expect(
-      document.documentElement.outerHTML.replace(/\r\n|\n|\r/g, ''),
-    ).toContain(
-      `<style type=\"text/css\">._cssModule_1gc0y_1 {  color: green;}</style>`,
+    expect(getDocumentHTML()).toContain(
+      `._cssModule_1gc0y_1 {
+  color: green;
+}`,
     );
 
     // Sass
     // Global
     // TODO: Global SCSS is saved into the `.cache` folder, not in the JSDOM, need to find a way to test it
     // Import
-    expect(document.documentElement.outerHTML)
-      .toContain(`header .imported-sass {
+    expect(getDocumentHTML()).toContain(`header .imported-sass {
   text-transform: uppercase;
 }`);
-    expect(document.documentElement.outerHTML)
-      .toContain(`header .imported-sass {
+    expect(getDocumentHTML()).toContain(`header .imported-sass {
   color: pink;
-}</style>`);
+}`);
     // import ~
     // TODO: Not implemented yet
     // loadPaths

examples/angular/package.json

@@ -37,9 +37,12 @@
     "@types/jest": "^28.1.6",
     "@types/node": "16.11.7",
     "@types/testing-library__jest-dom": "^5.14.5",
+    "autoprefixer": "^10.4.8",
     "jest": "^28.1.3",
     "jest-preview": "^0.2.8",
+    "postcss": "^8.4.16",
     "start-server-and-test": "^1.14.0",
+    "tailwindcss": "^3.1.8",
     "typescript": "~4.7.2"
   }
 }

examples/angular/src/app/app.component.ts

@@ -29,6 +29,7 @@ export const styleUrls = [
           This text is styled by global configured SASS
         </p>
         <p class="imported-sass">This text is styled by imported SASS</p>
+        <p class="text-xanh">TailwindCSS Green</p>
         <p>
           <app-counter></app-counter>
         </p>

examples/angular/src/styles/index.css

@@ -1,3 +1,7 @@
+@tailwind base;
+@tailwind components;
+@tailwind utilities;
+
 body {
   margin: 0;
   font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',

examples/angular/tailwind.config.js

@@ -0,0 +1,11 @@
+/** @type {import('tailwindcss').Config} */
+module.exports = {
+  content: ['./src/**/*.{html,ts}'],
+  theme: {
+    extend: {},
+    colors: {
+      xanh: '#34eb4f',
+    },
+  },
+  plugins: [],
+};

examples/create-react-app/src/__tests__/transform.test.tsx

@@ -6,7 +6,9 @@ describe('transform', () => {
   it('should generate snapshots correctly in different OS', () => {
     render(<App />);
 
-    expect(document.body.outerHTML).toMatchInlineSnapshot(
+    expect(
+      document.body.outerHTML.replace(/\r\n|\n|\r/g, '\n'),
+    ).toMatchInlineSnapshot(
       `"<body><div><div class=\\"App\\"><header class=\\"App-header\\"><svg xmlns=\\"http://www.w3.org/2000/svg\\" viewBox=\\"0 0 841.9 595.3\\" class=\\"svg-component\\"><g fill=\\"#61DAFB\\"><path d=\\"M666.3 296.5c0-32.5-40.7-63.3-103.1-82.4 14.4-63.6 8-114.2-20.2-130.4-6.5-3.8-14.1-5.6-22.4-5.6v22.3c4.6 0 8.3.9 11.4 2.6 13.6 7.8 19.5 37.5 14.9 75.7-1.1 9.4-2.9 19.3-5.1 29.4-19.6-4.8-41-8.5-63.5-10.9-13.5-18.5-27.5-35.3-41.6-50 32.6-30.3 63.2-46.9 84-46.9V78c-27.5 0-63.5 19.6-99.9 53.6-36.4-33.8-72.4-53.2-99.9-53.2v22.3c20.7 0 51.4 16.5 84 46.6-14 14.7-28 31.4-41.3 49.9-22.6 2.4-44 6.1-63.6 11-2.3-10-4-19.7-5.2-29-4.7-38.2 1.1-67.9 14.6-75.8 3-1.8 6.9-2.6 11.5-2.6V78.5c-8.4 0-16 1.8-22.6 5.6-28.1 16.2-34.4 66.7-19.9 130.1-62.2 19.2-102.7 49.9-102.7 82.3 0 32.5 40.7 63.3 103.1 82.4-14.4 63.6-8 114.2 20.2 130.4 6.5 3.8 14.1 5.6 22.5 5.6 27.5 0 63.5-19.6 99.9-53.6 36.4 33.8 72.4 53.2 99.9 53.2 8.4 0 16-1.8 22.6-5.6 28.1-16.2 34.4-66.7 19.9-130.1 62-19.1 102.5-49.9 102.5-82.3zm-130.2-66.7c-3.7 12.9-8.3 26.2-13.5 39.5-4.1-8-8.4-16-13.1-24-4.6-8-9.5-15.8-14.4-23.4 14.2 2.1 27.9 4.7 41 7.9zm-45.8 106.5c-7.8 13.5-15.8 26.3-24.1 38.2-14.9 1.3-30 2-45.2 2-15.1 0-30.2-.7-45-1.9-8.3-11.9-16.4-24.6-24.2-38-7.6-13.1-14.5-26.4-20.8-39.8 6.2-13.4 13.2-26.8 20.7-39.9 7.8-13.5 15.8-26.3 24.1-38.2 14.9-1.3 30-2 45.2-2 15.1 0 30.2.7 45 1.9 8.3 11.9 16.4 24.6 24.2 38 7.6 13.1 14.5 26.4 20.8 39.8-6.3 13.4-13.2 26.8-20.7 39.9zm32.3-13c5.4 13.4 10 26.8 13.8 39.8-13.1 3.2-26.9 5.9-41.2 8 4.9-7.7 9.8-15.6 14.4-23.7 4.6-8 8.9-16.1 13-24.1zM421.2 430c-9.3-9.6-18.6-20.3-27.8-32 9 .4 18.2.7 27.5.7 9.4 0 18.7-.2 27.8-.7-9 11.7-18.3 22.4-27.5 32zm-74.4-58.9c-14.2-2.1-27.9-4.7-41-7.9 3.7-12.9 8.3-26.2 13.5-39.5 4.1 8 8.4 16 13.1 24 4.7 8 9.5 15.8 14.4 23.4zM420.7 163c9.3 9.6 18.6 20.3 27.8 32-9-.4-18.2-.7-27.5-.7-9.4 0-18.7.2-27.8.7 9-11.7 18.3-22.4 27.5-32zm-74 58.9c-4.9 7.7-9.8 15.6-14.4 23.7-4.6 8-8.9 16-13 24-5.4-13.4-10-26.8-13.8-39.8 13.1-3.1 26.9-5.8 41.2-7.9zm-90.5 125.2c-35.4-15.1-58.3-34.9-58.3-50.6 0-15.7 22.9-35.6 58.3-50.6 8.6-3.7 18-7 27.7-10.1 5.7 19.6 13.2 40 22.5 60.9-9.2 20.8-16.6 41.1-22.2 60.6-9.9-3.1-19.3-6.5-28-10.2zM310 490c-13.6-7.8-19.5-37.5-14.9-75.7 1.1-9.4 2.9-19.3 5.1-29.4 19.6 4.8 41 8.5 63.5 10.9 13.5 18.5 27.5 35.3 41.6 50-32.6 30.3-63.2 46.9-84 46.9-4.5-.1-8.3-1-11.3-2.7zm237.2-76.2c4.7 38.2-1.1 67.9-14.6 75.8-3 1.8-6.9 2.6-11.5 2.6-20.7 0-51.4-16.5-84-46.6 14-14.7 28-31.4 41.3-49.9 22.6-2.4 44-6.1 63.6-11 2.3 10.1 4.1 19.8 5.2 29.1zm38.5-66.7c-8.6 3.7-18 7-27.7 10.1-5.7-19.6-13.2-40-22.5-60.9 9.2-20.8 16.6-41.1 22.2-60.6 9.9 3.1 19.3 6.5 28.1 10.2 35.4 15.1 58.3 34.9 58.3 50.6-.1 15.7-23 35.6-58.4 50.6zM320.8 78.4z\\"></path><circle cx=\\"420.9\\" cy=\\"296.5\\" r=\\"45.7\\"></circle><path d=\\"M520.5 78.1z\\"></path></g></svg><img src=\\"/src/logo.svg\\" class=\\"App-logo\\" alt=\\"logo\\"><div><img src=\\"/src/assets/images/logo.svg\\" class=\\"logo2\\" alt=\\"logo2\\"><img src=\\"/src/assets/images/favicon.ico\\" alt=\\"static react\\"></div><p>Create React App example</p><p class=\\"_textOrange_p6ddy_1\\">Styled by CSS Modules</p><p class=\\"global-configured-sass\\">This text is styled by global configured SASS</p><p class=\\"imported-sass\\">This text is styled by imported SASS</p><p class=\\"load-path-sass\\">This text is styled by SASS from load paths</p><div class=\\"animated fadeIn\\"><p>An animated element style using @import ~</p><p>Watch me fade in!</p></div><button data-testid=\\"increase\\" type=\\"button\\">count is: <div data-testid=\\"count\\">0</div></button><a class=\\"App-link\\" href=\\"https://reactjs.org\\" target=\\"_blank\\" rel=\\"noopener noreferrer\\">Learn React</a></header></div></div></body>"`,
     );
   });

examples/vite-react/package.json

@@ -28,13 +28,16 @@
     "@vitejs/plugin-react": "^1.0.7",
     "animate-sass": "^0.8.2",
     "animate.css": "^4.1.1",
+    "autoprefixer": "^10.4.8",
     "cross-env": "^7.0.3",
     "jest": "^27.5.1",
     "jest-preview": "file:../..",
     "jest-watch-typeahead": "^1.0.0",
     "npm-run-all": "^4.1.5",
+    "postcss": "^8.4.16",
     "prettier": "^2.6.0",
     "sass": "^1.50.0",
+    "tailwindcss": "^3.1.8",
     "typescript": "^4.5.4",
     "vite": "^2.8.0"
   }

examples/vite-react/postcss.config.js

@@ -0,0 +1,6 @@
+module.exports = {
+  plugins: {
+    tailwindcss: {},
+    autoprefixer: {},
+  },
+}

examples/vite-react/src/App.tsx

@@ -27,6 +27,7 @@ function App() {
         <p className="load-path-sass">
           This text is styled by SASS from load paths
         </p>
+        <p className="text-xanh">TailwindCSS - Green</p>
         <p className="animate__animated animate__bounce">
           An animated element style using @use ~
         </p>

examples/vite-react/src/index.css

@@ -1,3 +1,7 @@
+@tailwind base;
+@tailwind components;
+@tailwind utilities;
+
 body {
   margin: 0;
   font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',

examples/vite-react/tailwind.config.js

@@ -0,0 +1,11 @@
+/** @type {import('tailwindcss').Config} */
+module.exports = {
+  content: ['./index.html', './src/**/*.{js,ts,jsx,tsx}'],
+  theme: {
+    extend: {},
+    colors: {
+      xanh: '#34eb4f',
+    },
+  },
+  plugins: [],
+};

package.json

@@ -50,6 +50,7 @@
     "server": "node cli/index.js",
     "server:watch": "nodemon cli/index.js",
     "test:dev": "cross-env NODE_ENV=test jest --watch --no-cache App",
+    "test:dev:cache": "cross-env NODE_ENV=test jest --watch App",
     "test:ci": "cross-env NODE_ENV=test jest",
     "clearCache": "node cli/clearCache.js",
     "test": "npm-run-all -p server test:dev",
@@ -69,6 +70,7 @@
     "connect": "^3.7.0",
     "find-node-modules": "^2.1.3",
     "open": "^8.4.0",
+    "postcss-load-config": "^4.0.1",
     "sirv": "^2.0.2",
     "slash": "^3.0.0",
     "string-hash": "^1.1.3",
@@ -106,6 +108,7 @@
     "npm-run-all": "^4.1.5",
     "postcss": "^8.4.14",
     "postcss-modules": "^4.3.1",
+    "postcss-trolling": "^0.1.7",
     "prettier": "^2.6.0",
     "react": "^17.0.2",
     "react-dom": "^17.0.2",

playground/index.css

@@ -0,0 +1,3 @@
+a {
+  color: aliceblue;
+}

playground/postcss-load-config.js

@@ -0,0 +1,45 @@
+const { spawnSync } = require('child_process');
+
+// const result = spawnSync('node', [
+//   '-e',
+//   `const postcss = require('postcss');
+//   const postcssrc = require('postcss-load-config');
+//   const { readFileSync } = require('fs');
+//   const css = readFileSync('index.css', 'utf8');
+
+//   postcssrc().then(({ plugins, options }) => {
+//     // console.log({ plugins, options });
+
+//     postcss(plugins)
+//       .process(css, { ...options, from: 'index.css' })
+//       .then((result) => console.log(result.css));
+//   });`,
+// ]);
+// const stderr = result.stderr.toString('utf-8').trim();
+// if (stderr) console.error(stderr);
+// if (result.error) throw result.error;
+// const a = result.stdout.toString();
+// console.log(a);
+
+function havePostCss() {
+  const result = spawnSync('node', [
+    '-e',
+    `const postcssrc = require('postcss-load-config');
+
+    postcssrc().then(({ plugins, options }) => {
+      console.log(true)
+    })
+    .catch(error=>{
+      if (!/No PostCSS Config found/.test(error.message)) {
+        throw new Error("Failed to load PostCSS config", error)
+      }
+      console.log(false)
+    });`,
+  ]);
+  const stderr = result.stderr.toString('utf-8').trim();
+  if (stderr) console.error(stderr);
+  if (result.error) throw result.error;
+  return result.stdout.toString().trim() === 'true';
+}
+
+console.log(havePostCss());

playground/postcss.config.js

@@ -0,0 +1,7 @@
+module.exports = {
+  plugins: {
+    tailwindcss: {},
+    autoprefixer: {},
+    // 'postcss-trolling': {},
+  },
+};