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webpack/test/Defaults.unittest.js

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const jestDiff = require("jest-diff");
const stripAnsi = require("strip-ansi");
const {
applyWebpackOptionsDefaults,
getNormalizedWebpackOptions
} = require("..").config;
/**
* Escapes regular expression metacharacters
* @param {string} str String to quote
* @returns {string} Escaped string
*/
const quotemeta = str => {
return str.replace(/[-[\]\\/{}()*+?.^$|]/g, "\\$&");
};
describe("Defaults", () => {
const cwd = process.cwd();
const cwdRegExp = new RegExp(
`${quotemeta(cwd)}((?:\\\\)?(?:[a-zA-Z.\\-_]+\\\\)*)`,
"g"
);
const escapedCwd = JSON.stringify(cwd).slice(1, -1);
const escapedCwdRegExp = new RegExp(
`${quotemeta(escapedCwd)}((?:\\\\\\\\)?(?:[a-zA-Z.\\-_]+\\\\\\\\)*)`,
"g"
);
const normalizeCwd = str => {
if (cwd.startsWith("/")) {
str = str.replace(new RegExp(quotemeta(cwd), "g"), "<cwd>");
} else {
str = str.replace(cwdRegExp, (m, g) => `<cwd>${g.replace(/\\/g, "/")}`);
str = str.replace(
escapedCwdRegExp,
(m, g) => `<cwd>${g.replace(/\\\\/g, "/")}`
);
}
return str;
};
class Diff {
constructor(value) {
this.value = value;
}
}
expect.addSnapshotSerializer({
test(value) {
return value instanceof Diff;
},
print(received) {
return normalizeCwd(received.value);
}
});
expect.addSnapshotSerializer({
test(value) {
return typeof value === "string";
},
print(received) {
return JSON.stringify(normalizeCwd(received));
}
});
const getDefaultConfig = config => {
config = getNormalizedWebpackOptions(config);
applyWebpackOptionsDefaults(config);
return config;
};
const baseConfig = getDefaultConfig({ mode: "none" });
it("should have the correct base config", () => {
expect(baseConfig).toMatchInlineSnapshot(`
Object {
"amd": undefined,
"bail": undefined,
"cache": false,
"context": "<cwd>",
"dependencies": undefined,
"devServer": undefined,
"devtool": false,
"entry": Object {
"main": Object {
"import": Array [
"./src",
],
},
},
"experiments": Object {
"asset": false,
"asyncWebAssembly": false,
"importAsync": false,
"importAwait": false,
"mjs": false,
"outputModule": false,
"syncWebAssembly": false,
"topLevelAwait": false,
},
"externals": undefined,
"externalsType": "var",
"infrastructureLogging": Object {
"debug": false,
"level": "info",
},
"loader": undefined,
"mode": "none",
"module": Object {
"defaultRules": Array [
Object {
"resolve": Object {},
"type": "javascript/auto",
},
Object {
"test": /\\\\\\.json\\$/i,
"type": "json",
},
],
"exprContextCritical": true,
"exprContextRecursive": true,
"exprContextRegExp": false,
"exprContextRequest": ".",
"rules": Array [],
"strictExportPresence": false,
"strictThisContextOnImports": false,
"unknownContextCritical": true,
"unknownContextRecursive": true,
"unknownContextRegExp": false,
"unknownContextRequest": ".",
"unsafeCache": false,
"wrappedContextCritical": false,
"wrappedContextRecursive": true,
"wrappedContextRegExp": /\\.\\*/,
},
"name": undefined,
"node": Object {
"__dirname": "mock",
"__filename": "mock",
"global": true,
},
"optimization": Object {
"checkWasmTypes": false,
"chunkIds": "natural",
"concatenateModules": false,
"flagIncludedChunks": false,
"innerGraph": true,
"mangleExports": false,
"mangleWasmImports": false,
"mergeDuplicateChunks": true,
"minimize": false,
"minimizer": Array [
Object {
"apply": [Function],
},
],
"moduleIds": "natural",
"noEmitOnErrors": false,
"nodeEnv": false,
"portableRecords": false,
"providedExports": true,
"removeAvailableModules": false,
"removeEmptyChunks": true,
"runtimeChunk": false,
"sideEffects": true,
"splitChunks": Object {
"automaticNameDelimiter": "-",
"cacheGroups": Object {
"default": Object {
"idHint": "",
"minChunks": 2,
"priority": -20,
"reuseExistingChunk": true,
},
"defaultVendors": Object {
"idHint": "vendors",
"priority": -10,
"reuseExistingChunk": true,
"test": /\\[\\\\\\\\/\\]node_modules\\[\\\\\\\\/\\]/i,
},
},
"chunks": "async",
"hidePathInfo": false,
"maxAsyncRequests": Infinity,
"maxInitialRequests": Infinity,
"minChunks": 1,
"minRemainingSize": undefined,
"minSize": 10000,
},
"usedExports": true,
},
"output": Object {
"assetModuleFilename": "[hash][ext]",
"chunkCallbackName": "webpackChunkwebpack",
"chunkFilename": "[name].js",
"chunkLoadTimeout": 120000,
"compareBeforeEmit": true,
"crossOriginLoading": false,
"devtoolFallbackModuleFilenameTemplate": undefined,
"devtoolModuleFilenameTemplate": undefined,
"devtoolNamespace": "webpack",
"ecmaVersion": 6,
"enabledLibraryTypes": Array [],
"filename": "[name].js",
"globalObject": "window",
"hashDigest": "hex",
"hashDigestLength": 20,
"hashFunction": "md4",
"hashSalt": undefined,
"hotUpdateChunkFilename": "[id].[fullhash].hot-update.js",
"hotUpdateFunction": "webpackHotUpdatewebpack",
"hotUpdateMainFilename": "[fullhash].hot-update.json",
"iife": true,
"jsonpFunction": "webpackJsonpwebpack",
"jsonpScriptType": false,
"library": undefined,
"libraryTarget": "var",
"module": false,
"path": "<cwd>/dist",
"pathinfo": false,
"publicPath": "",
"sourceMapFilename": "[file].map[query]",
"sourcePrefix": undefined,
"strictModuleExceptionHandling": false,
"uniqueName": "webpack",
"webassemblyModuleFilename": "[hash].module.wasm",
},
"parallelism": 100,
"performance": false,
"plugins": Array [],
"profile": false,
"recordsInputPath": false,
"recordsOutputPath": false,
"resolve": Object {
"aliasFields": Array [
"browser",
],
"cache": false,
"extensions": Array [
".js",
".json",
".wasm",
],
"mainFields": Array [
"browser",
"module",
"main",
],
"mainFiles": Array [
"index",
],
"modules": Array [
"node_modules",
],
},
"resolveLoader": Object {
"cache": false,
"extensions": Array [
".js",
],
"mainFields": Array [
"loader",
"main",
],
"mainFiles": Array [
"index",
],
},
"stats": Object {},
"target": "web",
"watch": false,
"watchOptions": Object {},
}
`);
});
const test = (name, options, fn) => {
it(`should generate the correct defaults from ${name}`, () => {
if (!("mode" in options)) options.mode = "none";
const result = getDefaultConfig(options);
const diff = stripAnsi(
jestDiff(baseConfig, result, { expand: false, contextLines: 0 })
);
fn(expect(new Diff(diff)), expect(result));
});
};
test("empty config", {}, e =>
e.toMatchInlineSnapshot(`Compared values have no visual difference.`)
);
test("none mode", { mode: "none" }, e =>
e.toMatchInlineSnapshot(`Compared values have no visual difference.`)
);
test("no mode provided", { mode: undefined }, e =>
e.toMatchInlineSnapshot(`
- Expected
+ Received
@@ -33,1 +33,1 @@
- "mode": "none",
+ "mode": undefined,
@@ -68,4 +68,4 @@
- "checkWasmTypes": false,
- "chunkIds": "natural",
- "concatenateModules": false,
- "flagIncludedChunks": false,
+ "checkWasmTypes": true,
+ "chunkIds": "deterministic",
+ "concatenateModules": true,
+ "flagIncludedChunks": true,
@@ -73,1 +73,1 @@
- "mangleExports": false,
+ "mangleExports": true,
@@ -76,1 +76,1 @@
- "minimize": false,
+ "minimize": true,
@@ -82,3 +82,3 @@
- "moduleIds": "natural",
- "noEmitOnErrors": false,
- "nodeEnv": false,
+ "moduleIds": "deterministic",
+ "noEmitOnErrors": true,
+ "nodeEnv": "production",
@@ -108,3 +108,3 @@
- "hidePathInfo": false,
- "maxAsyncRequests": Infinity,
- "maxInitialRequests": Infinity,
+ "hidePathInfo": true,
+ "maxAsyncRequests": 6,
+ "maxInitialRequests": 4,
@@ -113,1 +113,1 @@
- "minSize": 10000,
+ "minSize": 30000,
@@ -154,1 +154,5 @@
- "performance": false,
+ "performance": Object {
+ "hints": "warning",
+ "maxAssetSize": 250000,
+ "maxEntrypointSize": 250000,
+ },
`)
);
test("production", { mode: "production" }, e =>
e.toMatchInlineSnapshot(`
- Expected
+ Received
@@ -33,1 +33,1 @@
- "mode": "none",
+ "mode": "production",
@@ -68,4 +68,4 @@
- "checkWasmTypes": false,
- "chunkIds": "natural",
- "concatenateModules": false,
- "flagIncludedChunks": false,
+ "checkWasmTypes": true,
+ "chunkIds": "deterministic",
+ "concatenateModules": true,
+ "flagIncludedChunks": true,
@@ -73,1 +73,1 @@
- "mangleExports": false,
+ "mangleExports": true,
@@ -76,1 +76,1 @@
- "minimize": false,
+ "minimize": true,
@@ -82,3 +82,3 @@
- "moduleIds": "natural",
- "noEmitOnErrors": false,
- "nodeEnv": false,
+ "moduleIds": "deterministic",
+ "noEmitOnErrors": true,
+ "nodeEnv": "production",
@@ -108,3 +108,3 @@
- "hidePathInfo": false,
- "maxAsyncRequests": Infinity,
- "maxInitialRequests": Infinity,
+ "hidePathInfo": true,
+ "maxAsyncRequests": 6,
+ "maxInitialRequests": 4,
@@ -113,1 +113,1 @@
- "minSize": 10000,
+ "minSize": 30000,
@@ -154,1 +154,5 @@
- "performance": false,
+ "performance": Object {
+ "hints": "warning",
+ "maxAssetSize": 250000,
+ "maxEntrypointSize": 250000,
+ },
`)
);
test("development", { mode: "development" }, e =>
e.toMatchInlineSnapshot(`
- Expected
+ Received
@@ -4,1 +4,7 @@
- "cache": false,
+ "cache": Object {
+ "immutablePaths": Array [],
+ "managedPaths": Array [
+ "<cwd>/node_modules",
+ ],
+ "type": "memory",
+ },
@@ -8,1 +14,1 @@
- "devtool": false,
+ "devtool": "eval",
@@ -33,1 +39,1 @@
- "mode": "none",
+ "mode": "development",
@@ -56,1 +62,1 @@
- "unsafeCache": false,
+ "unsafeCache": [Function anonymous],
@@ -69,1 +75,1 @@
- "chunkIds": "natural",
+ "chunkIds": "named",
@@ -82,1 +88,1 @@
- "moduleIds": "natural",
+ "moduleIds": "named",
@@ -84,1 +90,1 @@
- "nodeEnv": false,
+ "nodeEnv": "development",
@@ -112,1 +118,1 @@
- "minRemainingSize": undefined,
+ "minRemainingSize": 0,
@@ -145,1 +151,1 @@
- "pathinfo": false,
+ "pathinfo": true,
@@ -163,1 +169,1 @@
- "cache": false,
+ "cache": true,
@@ -182,1 +188,1 @@
- "cache": false,
+ "cache": true,
`)
);
test("sync wasm", { experiments: { syncWebAssembly: true } }, e =>
e.toMatchInlineSnapshot(`
- Expected
+ Received
@@ -23,1 +23,1 @@
- "syncWebAssembly": false,
+ "syncWebAssembly": true,
@@ -43,0 +43,4 @@
+ },
+ Object {
+ "test": /\\.wasm$/i,
+ "type": "webassembly/sync",
`)
);
test("mjs", { experiments: { mjs: true } }, e =>
e.toMatchInlineSnapshot(`
- Expected
+ Received
@@ -21,1 +21,1 @@
- "mjs": false,
+ "mjs": true,
@@ -44,0 +44,5 @@
+ Object {
+ "resolve": Object {
+ "mainFields": Array [
+ "browser",
+ "main",
@@ -45,0 +50,5 @@
+ },
+ "test": /\\.mjs$/i,
+ "type": "javascript/esm",
+ },
+ ],
@@ -165,0 +175,1 @@
+ ".mjs",
`)
);
test("output module", { experiments: { outputModule: true } }, e =>
e.toMatchInlineSnapshot(`
- Expected
+ Received
@@ -22,1 +22,1 @@
- "outputModule": false,
+ "outputModule": true,
@@ -27,1 +27,1 @@
- "externalsType": "var",
+ "externalsType": "module",
@@ -138,1 +138,1 @@
- "iife": true,
+ "iife": false,
@@ -140,1 +140,1 @@
- "jsonpScriptType": false,
+ "jsonpScriptType": "module",
@@ -142,2 +142,2 @@
- "libraryTarget": "var",
- "module": false,
+ "libraryTarget": "module",
+ "module": true,
`)
);
test("async wasm", { experiments: { asyncWebAssembly: true } }, e =>
e.toMatchInlineSnapshot(`
- Expected
+ Received
@@ -18,1 +18,1 @@
- "asyncWebAssembly": false,
+ "asyncWebAssembly": true,
@@ -43,0 +43,4 @@
+ },
+ Object {
+ "test": /\\.wasm$/i,
+ "type": "webassembly/async",
`)
);
test(
"both wasm",
{ experiments: { syncWebAssembly: true, asyncWebAssembly: true } },
e =>
e.toMatchInlineSnapshot(`
- Expected
+ Received
@@ -18,1 +18,1 @@
- "asyncWebAssembly": false,
+ "asyncWebAssembly": true,
@@ -23,1 +23,1 @@
- "syncWebAssembly": false,
+ "syncWebAssembly": true,
@@ -43,0 +43,4 @@
+ },
+ Object {
+ "test": /\\.wasm$/i,
+ "type": "webassembly/async",
`)
);
test("const filename", { output: { filename: "bundle.js" } }, e =>
e.toMatchInlineSnapshot(`
- Expected
+ Received
@@ -120,1 +120,1 @@
- "chunkFilename": "[name].js",
+ "chunkFilename": "[id].bundle.js",
@@ -129,1 +129,1 @@
- "filename": "[name].js",
+ "filename": "bundle.js",
`)
);
test("function filename", { output: { filename: () => "bundle.js" } }, e =>
e.toMatchInlineSnapshot(`
- Expected
+ Received
@@ -120,1 +120,1 @@
- "chunkFilename": "[name].js",
+ "chunkFilename": "[id].js",
@@ -129,1 +129,1 @@
- "filename": "[name].js",
+ "filename": [Function filename],
`)
);
test("library", { output: { library: ["myLib", "awesome"] } }, e =>
e.toMatchInlineSnapshot(`
- Expected
+ Received
@@ -119,1 +119,1 @@
- "chunkCallbackName": "webpackChunkwebpack",
+ "chunkCallbackName": "webpackChunkmyLib_awesome",
@@ -126,1 +126,1 @@
- "devtoolNamespace": "webpack",
+ "devtoolNamespace": "myLib.awesome",
@@ -128,1 +128,3 @@
- "enabledLibraryTypes": Array [],
+ "enabledLibraryTypes": Array [
+ "var",
+ ],
@@ -136,1 +138,1 @@
- "hotUpdateFunction": "webpackHotUpdatewebpack",
+ "hotUpdateFunction": "webpackHotUpdatemyLib_awesome",
@@ -139,1 +141,1 @@
- "jsonpFunction": "webpackJsonpwebpack",
+ "jsonpFunction": "webpackJsonpmyLib_awesome",
@@ -141,1 +143,10 @@
- "library": undefined,
+ "library": Object {
+ "auxiliaryComment": undefined,
+ "export": undefined,
+ "name": Array [
+ "myLib",
+ "awesome",
+ ],
+ "type": "var",
+ "umdNamedDefine": undefined,
+ },
@@ -150,1 +161,1 @@
- "uniqueName": "webpack",
+ "uniqueName": "myLib.awesome",
`)
);
test("target node", { target: "node" }, e =>
e.toMatchInlineSnapshot(`
- Expected
+ Received
@@ -63,3 +63,3 @@
- "__dirname": "mock",
- "__filename": "mock",
- "global": true,
+ "__dirname": false,
+ "__filename": false,
+ "global": false,
@@ -130,1 +130,1 @@
- "globalObject": "window",
+ "globalObject": "global",
@@ -160,3 +160,1 @@
- "aliasFields": Array [
- "browser",
- ],
+ "aliasFields": Array [],
@@ -170,1 +168,0 @@
- "browser",
@@ -195,1 +192,1 @@
- "target": "web",
+ "target": "node",
`)
);
test("target webworker", { target: "webworker" }, e =>
e.toMatchInlineSnapshot(`
- Expected
+ Received
@@ -130,1 +130,1 @@
- "globalObject": "window",
+ "globalObject": "self",
@@ -195,1 +195,1 @@
- "target": "web",
+ "target": "webworker",
`)
);
test("records", { recordsPath: "some-path" }, e =>
e.toMatchInlineSnapshot(`
- Expected
+ Received
@@ -85,1 +85,1 @@
- "portableRecords": false,
+ "portableRecords": true,
@@ -157,2 +157,2 @@
- "recordsInputPath": false,
- "recordsOutputPath": false,
+ "recordsInputPath": "some-path",
+ "recordsOutputPath": "some-path",
`)
);
test("ecamVersion", { output: { ecmaVersion: 2020 } }, e =>
e.toMatchInlineSnapshot(`
- Expected
+ Received
@@ -127,1 +127,1 @@
- "ecmaVersion": 6,
+ "ecmaVersion": 11,
`)
);
test("single runtimeChunk", { optimization: { runtimeChunk: "single" } }, e =>
e.toMatchInlineSnapshot(`
- Expected
+ Received
@@ -89,1 +89,3 @@
- "runtimeChunk": false,
+ "runtimeChunk": Object {
+ "name": [Function name],
+ },
`)
);
test(
"single runtimeChunk",
{ optimization: { runtimeChunk: "multiple" } },
e =>
e.toMatchInlineSnapshot(`
- Expected
+ Received
@@ -89,1 +89,3 @@
- "runtimeChunk": false,
+ "runtimeChunk": Object {
+ "name": [Function name],
+ },
`)
);
test("single runtimeChunk", { optimization: { runtimeChunk: true } }, e =>
e.toMatchInlineSnapshot(`
- Expected
+ Received
@@ -89,1 +89,3 @@
- "runtimeChunk": false,
+ "runtimeChunk": Object {
+ "name": [Function name],
+ },
`)
);
test("cache true", { cache: true }, e =>
e.toMatchInlineSnapshot(`
- Expected
+ Received
@@ -4,1 +4,7 @@
- "cache": false,
+ "cache": Object {
+ "immutablePaths": Array [],
+ "managedPaths": Array [
+ "<cwd>/node_modules",
+ ],
+ "type": "memory",
+ },
@@ -56,1 +62,1 @@
- "unsafeCache": false,
+ "unsafeCache": [Function anonymous],
@@ -163,1 +169,1 @@
- "cache": false,
+ "cache": true,
@@ -182,1 +188,1 @@
- "cache": false,
+ "cache": true,
`)
);
test("cache filesystem", { cache: { type: "filesystem" } }, e =>
e.toMatchInlineSnapshot(`
- Expected
+ Received
@@ -4,1 +4,20 @@
- "cache": false,
+ "cache": Object {
+ "buildDependencies": Object {
+ "defaultWebpack": Array [
+ "<cwd>/lib/",
+ ],
+ },
+ "cacheDirectory": "<cwd>/node_modules/.cache/webpack",
+ "cacheLocation": "<cwd>/node_modules/.cache/webpack/default-none",
+ "hashAlgorithm": "md4",
+ "idleTimeout": 60000,
+ "idleTimeoutForInitialStore": 0,
+ "immutablePaths": Array [],
+ "managedPaths": Array [
+ "<cwd>/node_modules",
+ ],
+ "name": "default-none",
+ "store": "pack",
+ "type": "filesystem",
+ "version": "",
+ },
@@ -56,1 +75,1 @@
- "unsafeCache": false,
+ "unsafeCache": [Function anonymous],
@@ -163,1 +182,1 @@
- "cache": false,
+ "cache": true,
@@ -182,1 +201,1 @@
- "cache": false,
+ "cache": true,
`)
);
test(
"disable",
{
cache: false,
node: false,
amd: false,
optimization: { splitChunks: false }
},
e =>
e.toMatchInlineSnapshot(`
- Expected
+ Received
@@ -2,1 +2,1 @@
- "amd": undefined,
+ "amd": false,
@@ -62,5 +62,1 @@
- "node": Object {
- "__dirname": "mock",
- "__filename": "mock",
- "global": true,
- },
+ "node": false,
@@ -91,24 +87,1 @@
- "splitChunks": Object {
- "automaticNameDelimiter": "-",
- "cacheGroups": Object {
- "default": Object {
- "idHint": "",
- "minChunks": 2,
- "priority": -20,
- "reuseExistingChunk": true,
- },
- "defaultVendors": Object {
- "idHint": "vendors",
- "priority": -10,
- "reuseExistingChunk": true,
- "test": /[\\\\/]node_modules[\\\\/]/i,
- },
- },
- "chunks": "async",
- "hidePathInfo": false,
- "maxAsyncRequests": Infinity,
- "maxInitialRequests": Infinity,
- "minChunks": 1,
- "minRemainingSize": undefined,
- "minSize": 10000,
- },
+ "splitChunks": false,
`)
);
test(
"uniqueName",
{
output: {
uniqueName: "@@@Hello World!"
}
},
e =>
e.toMatchInlineSnapshot(`
- Expected
+ Received
@@ -119,1 +119,1 @@
- "chunkCallbackName": "webpackChunkwebpack",
+ "chunkCallbackName": "webpackChunk_Hello_World_",
@@ -126,1 +126,1 @@
- "devtoolNamespace": "webpack",
+ "devtoolNamespace": "@@@Hello World!",
@@ -136,1 +136,1 @@
- "hotUpdateFunction": "webpackHotUpdatewebpack",
+ "hotUpdateFunction": "webpackHotUpdate_Hello_World_",
@@ -139,1 +139,1 @@
- "jsonpFunction": "webpackJsonpwebpack",
+ "jsonpFunction": "webpackJsonp_Hello_World_",
@@ -150,1 +150,1 @@
- "uniqueName": "webpack",
+ "uniqueName": "@@@Hello World!",
`)
);
});
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