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test: postcss-loader (#830)
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‎package-lock.json

+544-78
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‎package.json

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@@ -43,6 +43,8 @@
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"jest": "^23.6.0",
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"lint-staged": "^8.1.0",
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"memory-fs": "^0.4.1",
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"postcss-loader": "^3.0.0",
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"postcss-preset-env": "^6.4.0",
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"prettier": "^1.15.2",
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"standard-version": "^4.0.0",
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"strip-ansi": "^5.0.0",

‎test/__snapshots__/loader.test.js.snap

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@@ -443,3 +443,87 @@ You may need an appropriate loader to handle this file type.
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`;
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exports[`loader should throws error when no loader for assets: warnings 1`] = `Array []`;
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exports[`loader using together with "postcss-loader": errors 1`] = `Array []`;
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exports[`loader using together with "postcss-loader": module (evaluated) 1`] = `
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Array [
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Array [
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1,
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":root {
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--fontSize: 1rem;
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--mainColor: rgba(18,52,86,0.47059);
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--secondaryColor: rgba(102, 51, 153, 0.9);
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}
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html {
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overflow-x: hidden;
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overflow-y: auto;
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overflow: hidden auto;
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}
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@media (max-width: 50rem) {
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body {
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color: rgba(18,52,86,0.47059);
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color: var(--mainColor);
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font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;
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font-size: 1rem;
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font-size: var(--fontSize);
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line-height: calc(1rem * 1.5);
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line-height: calc(var(--fontSize) * 1.5);
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word-wrap: break-word;
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padding-left: calc(1rem / 2 + 1px);
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padding-right: calc(1rem / 2 + 1px);
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padding-left: calc(var(--fontSize) / 2 + 1px);
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padding-right: calc(var(--fontSize) / 2 + 1px);
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}
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}
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h1,h2,h3,h4,h5,h6 {
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margin-top: 0;
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margin-bottom: 0;
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}
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main.hero, .hero.main {
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background-image: img1x.png;
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}
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@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
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main.hero, .hero.main {
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background-image: img2x.png;
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}
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}
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main.hero, .hero.main {
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background-image: -webkit-image-set(url(/webpack/public/path/img1x.png) 1x, url(/webpack/public/path/img2x.png) 2x);
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background-image: image-set(\\"img1x.png\\" 1x, \\"img2x.png\\" 2x);
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}
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a {
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color: rgba(0, 0, 255, 0.9)
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}
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a:hover {
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color: #639;
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}
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",
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"",
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],
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]
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`;
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exports[`loader using together with "postcss-loader": module 1`] = `
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"var escape = require(\\"../../../lib/runtime/escape.js\\");
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exports = module.exports = require(\\"../../../lib/runtime/api.js\\")(false);
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// imports
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// module
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exports.push([module.id, \\":root {\\\\n --fontSize: 1rem;\\\\n --mainColor: rgba(18,52,86,0.47059);\\\\n --secondaryColor: rgba(102, 51, 153, 0.9);\\\\n}\\\\n\\\\nhtml {\\\\n overflow-x: hidden;\\\\n overflow-y: auto;\\\\n overflow: hidden auto;\\\\n}\\\\n\\\\n@media (max-width: 50rem) {\\\\n body {\\\\n color: rgba(18,52,86,0.47059);\\\\n color: var(--mainColor);\\\\n font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;\\\\n font-size: 1rem;\\\\n font-size: var(--fontSize);\\\\n line-height: calc(1rem * 1.5);\\\\n line-height: calc(var(--fontSize) * 1.5);\\\\n word-wrap: break-word;\\\\n padding-left: calc(1rem / 2 + 1px);\\\\n padding-right: calc(1rem / 2 + 1px);\\\\n padding-left: calc(var(--fontSize) / 2 + 1px);\\\\n padding-right: calc(var(--fontSize) / 2 + 1px);\\\\n }\\\\n}\\\\n\\\\nh1,h2,h3,h4,h5,h6 {\\\\n margin-top: 0;\\\\n margin-bottom: 0;\\\\n}\\\\n\\\\nmain.hero, .hero.main {\\\\n background-image: img1x.png;\\\\n}\\\\n\\\\n@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {\\\\n\\\\nmain.hero, .hero.main {\\\\n background-image: img2x.png;\\\\n}\\\\n}\\\\n\\\\nmain.hero, .hero.main {\\\\n background-image: -webkit-image-set(url(\\" + escape(require(\\"./img1x.png\\")) + \\") 1x, url(\\" + escape(require(\\"./img2x.png\\")) + \\") 2x);\\\\n background-image: image-set(\\\\\\"img1x.png\\\\\\" 1x, \\\\\\"img2x.png\\\\\\" 2x);\\\\n}\\\\n\\\\na {\\\\n color: rgba(0, 0, 255, 0.9)\\\\n}\\\\n\\\\na:hover {\\\\n color: #639;\\\\n }\\\\n\\", \\"\\"]);
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// exports
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"
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`;
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exports[`loader using together with "postcss-loader": warnings 1`] = `Array []`;

‎test/fixtures/postcss-present-env/img1x.png

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‎test/fixtures/postcss-present-env/img2x.png

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‎test/fixtures/postcss-present-env/source.css

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@custom-media --viewport-medium (width <= 50rem);
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@custom-selector :--heading h1, h2, h3, h4, h5, h6;
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:root {
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--fontSize: 1rem;
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--mainColor: #12345678;
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--secondaryColor: lab(32.5 38.5 -47.6 / 90%);
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}
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html {
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overflow: hidden auto;
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}
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@media (--viewport-medium) {
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body {
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color: var(--mainColor);
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font-family: system-ui;
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font-size: var(--fontSize);
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line-height: calc(var(--fontSize) * 1.5);
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overflow-wrap: break-word;
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padding-inline: calc(var(--fontSize) / 2 + 1px);
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}
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}
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:--heading {
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margin-block: 0;
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}
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.hero:matches(main, .main) {
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background-image: image-set("img1x.png" 1x, "img2x.png" 2x);
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}
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a {
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color: rgb(0 0 100% / 90%);
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&:hover {
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color: rebeccapurple;
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}
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}

‎test/helpers.js

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@@ -31,6 +31,7 @@ function evaluated(output, modules, moduleId = 1) {
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const importedModule = modules.find((el) => {
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const modulePath = el.identifier.split('!').pop();
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const importedPaths = [
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'postcss-present-env',
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'icss/tests-cases/import',
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'import',
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'import/node_modules',
@@ -88,21 +89,32 @@ const moduleConfig = (config) => {
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loader: path.resolve(__dirname, '../index.js'),
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options: (config.loader && config.loader.options) || {},
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},
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].concat(
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config.sourceMap
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? [
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{
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loader: path.resolve(
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__dirname,
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'./fixtures/source-map-loader.js'
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),
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options: {
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sourceMap: config.sourceMap,
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]
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.concat(
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config.sourceMap
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? [
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{
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loader: path.resolve(
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__dirname,
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'./fixtures/source-map-loader.js'
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),
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options: {
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sourceMap: config.sourceMap,
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},
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},
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},
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]
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: []
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),
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]
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: []
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)
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.concat(
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config.postcssLoader
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? [
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{
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loader: 'postcss-loader',
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options: config.postcssLoaderOptions,
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},
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]
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: []
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),
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},
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{
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test: /\.(png|jpg|gif|svg|eot|ttf|woff|woff2)$/,

‎test/loader.test.js

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const path = require('path');
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const postcssPresetEnv = require('postcss-preset-env');
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const { webpack, evaluated, normalizeErrors } = require('./helpers');
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describe('loader', () => {
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);
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expect(normalizeErrors(stats.compilation.errors)).toMatchSnapshot('errors');
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});
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it('using together with "postcss-loader"', async () => {
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const config = {
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postcssLoader: true,
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postcssLoaderOptions: {
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plugins: () => [postcssPresetEnv({ stage: 0 })],
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},
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};
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const testId = './postcss-present-env/source.css';
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const stats = await webpack(testId, config);
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const { modules } = stats.toJson();
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const module = modules.find((m) => m.id === testId);
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expect(module.source).toMatchSnapshot('module');
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expect(evaluated(module.source, modules)).toMatchSnapshot(
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'module (evaluated)'
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);
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expect(stats.compilation.warnings).toMatchSnapshot('warnings');
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expect(stats.compilation.errors).toMatchSnapshot('errors');
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});
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});

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