/
sourceMap-option.test.js
783 lines (737 loc) · 24.1 KB
/
sourceMap-option.test.js
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import path from "path";
import postcssPresetEnv from "postcss-preset-env";
import MiniCssExtractPlugin from "mini-css-extract-plugin";
import {
compile,
getCompiler,
getErrors,
getExecutedCode,
getModuleSource,
getWarnings,
readAsset,
} from "./helpers/index";
jest.setTimeout(10000);
describe('"sourceMap" option', () => {
describe("not specified", () => {
it("should not generate source maps", async () => {
const compiler = getCompiler("./source-map/basic.js");
const stats = await compile(compiler);
expect(getModuleSource("./source-map/basic.css", stats)).toMatchSnapshot(
"module"
);
expect(
getExecutedCode("main.bundle.js", compiler, stats)
).toMatchSnapshot("result");
expect(getWarnings(stats)).toMatchSnapshot("warnings");
expect(getErrors(stats)).toMatchSnapshot("errors");
});
});
describe("true", () => {
it("should generate source maps", async () => {
const compiler = getCompiler("./source-map/basic.js", {
sourceMap: true,
});
const stats = await compile(compiler);
expect(getModuleSource("./source-map/basic.css", stats)).toMatchSnapshot(
"module"
);
expect(
getExecutedCode("main.bundle.js", compiler, stats)
).toMatchSnapshot("result");
expect(getWarnings(stats)).toMatchSnapshot("warnings");
expect(getErrors(stats)).toMatchSnapshot("errors");
});
it("should generate source maps #2", async () => {
const compiler = getCompiler("./source-map/with-query.js", {
sourceMap: true,
});
const stats = await compile(compiler);
expect(
getModuleSource("./source-map/with-query.css?url=false", stats)
).toMatchSnapshot("module");
expect(
getExecutedCode("main.bundle.js", compiler, stats)
).toMatchSnapshot("result");
expect(getWarnings(stats)).toMatchSnapshot("warnings");
expect(getErrors(stats)).toMatchSnapshot("errors");
});
it("should generate source maps when previous loader does not generate source maps", async () => {
const compiler = getCompiler(
"./source-map/basic.js",
{},
{
module: {
rules: [
{
test: /\.css$/i,
use: [
{
loader: path.resolve(__dirname, "../src"),
options: { sourceMap: true },
},
{
loader: path.resolve(
__dirname,
"./fixtures/source-map-loader.js"
),
options: {
sourceMap: null,
},
},
],
},
],
},
}
);
const stats = await compile(compiler);
expect(getModuleSource("./source-map/basic.css", stats)).toMatchSnapshot(
"module"
);
expect(
getExecutedCode("main.bundle.js", compiler, stats)
).toMatchSnapshot("result");
expect(getWarnings(stats)).toMatchSnapshot("warnings");
expect(getErrors(stats)).toMatchSnapshot("errors");
});
it('should generate source maps when previous loader generates source maps without "sourceRoot"', async () => {
const absolutePath = path.resolve(
__dirname,
"fixtures",
"source-map",
"basic.css"
);
const compiler = getCompiler(
"./source-map/basic.js",
{},
{
module: {
rules: [
{
test: /\.css$/i,
use: [
{
loader: path.resolve(__dirname, "../src"),
options: { sourceMap: true },
},
{
loader: path.resolve(
__dirname,
"./fixtures/source-map-loader.js"
),
options: {
sourceMap: JSON.stringify({
version: 3,
sources: [absolutePath],
names: [],
mappings: "AAAA,6BAA6B;;AAE7B;EACE,UAAU;AACZ",
file: absolutePath,
sourcesContent: [
'@import "./nested/nested.css";\n\n.class {\n color: red;\n}\n',
],
}),
},
},
],
},
],
},
}
);
const stats = await compile(compiler);
expect(getModuleSource("./source-map/basic.css", stats)).toMatchSnapshot(
"module"
);
expect(
getExecutedCode("main.bundle.js", compiler, stats)
).toMatchSnapshot("result");
expect(getWarnings(stats)).toMatchSnapshot("warnings");
expect(getErrors(stats)).toMatchSnapshot("errors");
});
it("should generate source maps when previous loader generates different source in source maps", async () => {
const absoluteSourceRoot = path.resolve(
__dirname,
"fixtures",
"source-map"
);
const absolutePath = path.resolve(absoluteSourceRoot, "basic-1.css");
const relativePath = path.relative(
absoluteSourceRoot,
path.resolve(__dirname, "fixtures", "source-map", "basic-2.css")
);
const compiler = getCompiler(
"./source-map/basic.js",
{},
{
module: {
rules: [
{
test: /\.css$/i,
use: [
{
loader: path.resolve(__dirname, "../src"),
options: { sourceMap: true },
},
{
loader: path.resolve(
__dirname,
"./fixtures/source-map-loader.js"
),
options: {
sourceMap: JSON.stringify({
version: 3,
sourceRoot: absoluteSourceRoot,
sources: [
// Absolute path
absolutePath,
// Relative path
relativePath,
// Absolute URL
"https://example.com/foo.css",
// Scheme-relative URL,
"//example.com/foo.css",
// Non-standard postcss syntax
`</foo/bar/baz.css`,
],
names: [],
mappings: "AAAA,6BAA6B;;AAE7B;EACE,UAAU;AACZ",
file: absolutePath,
sourcesContent: [
'@import "./nested/nested.css";\n\n.class {\n color: red;\n}\n',
"a { color: red; }",
"a { color: green; }",
"a { color: blue; }",
"a { color: azure; }",
],
}),
},
},
],
},
],
},
}
);
const stats = await compile(compiler);
expect(getModuleSource("./source-map/basic.css", stats)).toMatchSnapshot(
"module"
);
expect(
getExecutedCode("main.bundle.js", compiler, stats)
).toMatchSnapshot("result");
expect(getWarnings(stats)).toMatchSnapshot("warnings");
expect(getErrors(stats)).toMatchSnapshot("errors");
});
it('should generate source maps when previous loader generates source maps with "sourceRoot"', async () => {
const absoluteSourceRoot = path.resolve(
__dirname,
"fixtures",
"source-map"
);
const compiler = getCompiler(
"./source-map/basic.js",
{},
{
module: {
rules: [
{
test: /\.css$/i,
use: [
{
loader: path.resolve(__dirname, "../src"),
options: { sourceMap: true },
},
{
loader: path.resolve(
__dirname,
"./fixtures/source-map-loader.js"
),
options: {
sourceMap: JSON.stringify({
foo: "bar",
version: 3,
sources: ["basic.css"],
sourceRoot: absoluteSourceRoot,
names: [],
mappings: "AAAA,6BAA6B;;AAE7B;EACE,UAAU;AACZ",
file: "basic.css",
sourcesContent: [
'@import "./nested/nested.css";\n\n.class {\n color: red;\n}\n',
],
}),
},
},
],
},
],
},
}
);
const stats = await compile(compiler);
expect(getModuleSource("./source-map/basic.css", stats)).toMatchSnapshot(
"module"
);
expect(
getExecutedCode("main.bundle.js", compiler, stats)
).toMatchSnapshot("result");
expect(getWarnings(stats)).toMatchSnapshot("warnings");
expect(getErrors(stats)).toMatchSnapshot("errors");
});
it('should generate source maps when previous loader generates source maps ("postcss-loader")', async () => {
const compiler = getCompiler(
"./source-map/basic-postcss.js",
{},
{
module: {
rules: [
{
test: /\.css$/i,
use: [
{
loader: path.resolve(__dirname, "../src"),
options: {
sourceMap: true,
},
},
{
loader: "postcss-loader",
options: {
postcssOptions: {
plugins: [postcssPresetEnv({ stage: 0 })],
},
sourceMap: true,
},
},
],
},
],
},
}
);
const stats = await compile(compiler);
expect(
getModuleSource("./source-map/basic.postcss.css", stats)
).toMatchSnapshot("module");
expect(
getExecutedCode("main.bundle.js", compiler, stats)
).toMatchSnapshot("result");
expect(getWarnings(stats)).toMatchSnapshot("warnings");
expect(getErrors(stats)).toMatchSnapshot("errors");
});
it('should generate source maps when previous loader generates source maps ("sass-loader")', async () => {
const compiler = getCompiler(
"./source-map/basic-scss.js",
{},
{
module: {
rules: [
{
test: /\.s[ca]ss$/i,
use: [
{
loader: path.resolve(__dirname, "../src"),
options: {
sourceMap: true,
},
},
{
loader: "sass-loader",
options: {
// eslint-disable-next-line global-require
implementation: require("sass"),
sourceMap: true,
},
},
],
},
],
},
}
);
const stats = await compile(compiler);
expect(getModuleSource("./source-map/basic.scss", stats)).toMatchSnapshot(
"module"
);
expect(
getExecutedCode("main.bundle.js", compiler, stats)
).toMatchSnapshot("result");
expect(getWarnings(stats)).toMatchSnapshot("warnings");
expect(getErrors(stats)).toMatchSnapshot("errors");
});
it('should generate source maps when previous loader generates source maps ("less-loader")', async () => {
const compiler = getCompiler(
"./source-map/basic-less.js",
{},
{
module: {
rules: [
{
test: /\.less$/i,
use: [
{
loader: path.resolve(__dirname, "../src"),
options: {
sourceMap: true,
},
},
{
loader: "less-loader",
options: {
sourceMap: true,
},
},
],
},
],
},
}
);
const stats = await compile(compiler);
expect(getModuleSource("./source-map/base.less", stats)).toMatchSnapshot(
"module"
);
expect(
getExecutedCode("main.bundle.js", compiler, stats)
).toMatchSnapshot("result");
expect(getWarnings(stats)).toMatchSnapshot("warnings");
expect(getErrors(stats)).toMatchSnapshot("errors");
});
it('should generate source maps when previous loader generates source maps ("stylus-loader")', async () => {
const compiler = getCompiler(
"./source-map/basic-styl.js",
{},
{
module: {
rules: [
{
test: /\.styl$/i,
use: [
{
loader: path.resolve(__dirname, "../src"),
options: {
sourceMap: true,
},
},
{
loader: "stylus-loader",
options: {
sourceMap: true,
},
},
],
},
],
},
}
);
const stats = await compile(compiler);
expect(getModuleSource("./source-map/base.styl", stats)).toMatchSnapshot(
"module"
);
expect(
getExecutedCode("main.bundle.js", compiler, stats)
).toMatchSnapshot("result");
expect(getWarnings(stats)).toMatchSnapshot("warnings");
expect(getErrors(stats)).toMatchSnapshot("errors");
});
it('should generate source maps and do not change "[contenthash]" on different platform', async () => {
const compiler = getCompiler(
"./source-map/basic.js",
{},
{
devtool: "source-map",
// webpack@4 has bug
// It uses readableIdentifier to generate the sources, which uses the RequestShortener,
// which has some problems with paths that are 2 folders above the context
context: path.resolve(__dirname, ".."),
output: {
path: path.resolve(__dirname, "./outputs"),
filename: "[name].[contenthash].bundle.js",
chunkFilename: "[name].[contenthash].chunk.js",
publicPath: "/webpack/public/path/",
},
module: {
rules: [
{
test: /\.css$/i,
rules: [
{
loader: path.resolve(__dirname, "../src"),
options: { sourceMap: true },
},
],
},
],
},
}
);
const stats = await compile(compiler);
const chunkName = Object.keys(stats.compilation.assets).find(
(assetName) => /\.js$/.test(assetName)
);
expect(chunkName).toBe("main.25338c5bc4249008fa47.bundle.js");
expect(
getModuleSource("fixtures/source-map/basic.css", stats)
).toMatchSnapshot("module");
expect(getExecutedCode(chunkName, compiler, stats)).toMatchSnapshot(
"result"
);
expect(getWarnings(stats)).toMatchSnapshot("warnings");
expect(getErrors(stats)).toMatchSnapshot("errors");
});
it("should generate source maps when css was extracted", async () => {
const compiler = getCompiler(
"./source-map/extract.js",
{},
{
devtool: "source-map",
output: {
path: path.resolve(__dirname, "../outputs"),
filename: "[name].bundle.js",
chunkFilename: "[name].chunk.js",
publicPath: "/webpack/public/path/",
},
plugins: [
new MiniCssExtractPlugin({
filename: "[name].css",
}),
],
module: {
rules: [
{
test: /\.css$/i,
rules: [
{
loader: MiniCssExtractPlugin.loader,
},
{
loader: path.resolve(__dirname, "../src"),
options: { sourceMap: true },
},
],
},
],
},
}
);
const stats = await compile(compiler);
expect(readAsset("main.css", compiler, stats)).toMatchSnapshot(
"extracted css"
);
expect(
JSON.parse(readAsset("main.css.map", compiler, stats))
).toMatchSnapshot("source map");
expect(getWarnings(stats)).toMatchSnapshot("warnings");
expect(getErrors(stats)).toMatchSnapshot("errors");
});
it('should generate source maps when css was extracted and do not change "[contenthash]" on different platform', async () => {
const compiler = getCompiler(
"./source-map/extract.js",
{},
{
devtool: "source-map",
// webpack@4 has bug
// It uses readableIdentifier to generate the sources, which uses the RequestShortener,
// which has some problems with paths that are 2 folders above the context
context: path.resolve(__dirname, ".."),
output: {
path: path.resolve(__dirname, "../outputs"),
filename: "[name].bundle.js",
chunkFilename: "[name].chunk.js",
publicPath: "/webpack/public/path/",
},
plugins: [
new MiniCssExtractPlugin({
filename: "[name].[contenthash].css",
}),
],
module: {
rules: [
{
test: /\.css$/i,
rules: [
{
loader: MiniCssExtractPlugin.loader,
},
{
loader: path.resolve(__dirname, "../src"),
options: { sourceMap: true },
},
],
},
],
},
}
);
const stats = await compile(compiler);
const chunkName = Object.keys(stats.compilation.assets).find(
(assetName) => /\.css$/.test(assetName)
);
const extractedCSS = readAsset(chunkName, compiler, stats);
expect(chunkName).toBe("main.166835fe802ce402ea56.css");
expect(
extractedCSS.replace(
/=(.+?)\..+?\.css\.map/,
"=$1.xxxxxxxxxxxxxxxxxxxx.css.map"
)
).toMatchSnapshot("extracted css");
const sourceMap = JSON.parse(
readAsset(`${chunkName}.map`, compiler, stats)
);
sourceMap.file = sourceMap.file.replace(
/^(.+?)\..+?\.css$/,
"$1.xxxxxxxxxxxxxxxxxxxx.css"
);
sourceMap.sources = sourceMap.sources.map((source) =>
source.replace("css-loader", "")
);
expect(sourceMap).toMatchSnapshot("source map");
expect(getWarnings(stats)).toMatchSnapshot("warnings");
expect(getErrors(stats)).toMatchSnapshot("errors");
});
});
describe("false", () => {
it("should not generate source maps", async () => {
const compiler = getCompiler("./source-map/basic.js", {
sourceMap: false,
});
const stats = await compile(compiler);
expect(getModuleSource("./source-map/basic.css", stats)).toMatchSnapshot(
"module"
);
expect(
getExecutedCode("main.bundle.js", compiler, stats)
).toMatchSnapshot("result");
expect(getWarnings(stats)).toMatchSnapshot("warnings");
expect(getErrors(stats)).toMatchSnapshot("errors");
});
it("should not generate source maps when previous loader does not generate source maps", async () => {
const compiler = getCompiler(
"./source-map/basic.js",
{},
{
module: {
rules: [
{
test: /\.css$/i,
use: [
{
loader: path.resolve(__dirname, "../src"),
options: { sourceMap: false },
},
{
loader: path.resolve(
__dirname,
"./fixtures/source-map-loader.js"
),
options: {
// eslint-disable-next-line no-undefined
sourceMap: undefined,
},
},
],
},
],
},
}
);
const stats = await compile(compiler);
expect(getModuleSource("./source-map/basic.css", stats)).toMatchSnapshot(
"module"
);
expect(
getExecutedCode("main.bundle.js", compiler, stats)
).toMatchSnapshot("result");
expect(getWarnings(stats)).toMatchSnapshot("warnings");
expect(getErrors(stats)).toMatchSnapshot("errors");
});
it("should not generate source maps when previous loader generates source maps", async () => {
const compiler = getCompiler(
"./source-map/basic.js",
{},
{
module: {
rules: [
{
test: /\.css$/i,
use: [
{
loader: path.resolve(__dirname, "../src"),
options: { sourceMap: false },
},
{
loader: path.resolve(
__dirname,
"./fixtures/source-map-loader.js"
),
options: {
sourceMap: JSON.stringify({
foo: "bar",
version: 3,
sources: ["basic.css"],
names: [],
mappings: "AAAA;EACE,UAAU;AACZ",
file: "basic.css",
sourcesContent: [".class {\n color: red;\n}\n"],
}),
},
},
],
},
],
},
}
);
const stats = await compile(compiler);
expect(getModuleSource("./source-map/basic.css", stats)).toMatchSnapshot(
"module"
);
expect(
getExecutedCode("main.bundle.js", compiler, stats)
).toMatchSnapshot("result");
expect(getWarnings(stats)).toMatchSnapshot("warnings");
expect(getErrors(stats)).toMatchSnapshot("errors");
});
it("should generate source maps when css was extracted", async () => {
const compiler = getCompiler(
"./source-map/extract.js",
{},
{
output: {
path: path.resolve(__dirname, "../outputs"),
filename: "[name].bundle.js",
chunkFilename: "[name].chunk.js",
publicPath: "/webpack/public/path/",
},
plugins: [
new MiniCssExtractPlugin({
filename: "[name].css",
}),
],
module: {
rules: [
{
test: /\.css$/i,
rules: [
{
loader: MiniCssExtractPlugin.loader,
},
{
loader: path.resolve(__dirname, "../src"),
options: { sourceMap: false },
},
],
},
],
},
}
);
const stats = await compile(compiler);
expect(readAsset("main.css", compiler, stats)).toMatchSnapshot(
"extracted css"
);
expect(getWarnings(stats)).toMatchSnapshot("warnings");
expect(getErrors(stats)).toMatchSnapshot("errors");
});
});
});