mirror of https://github.com/webpack/webpack.git
474 lines
12 KiB
JavaScript
474 lines
12 KiB
JavaScript
/* globals describe, it */
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"use strict";
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const path = require("path");
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const webpack = require("../");
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const WebpackOptionsDefaulter = require("../lib/WebpackOptionsDefaulter");
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const MemoryFs = require("memory-fs");
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describe("Compiler", () => {
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function compile(entry, options, callback) {
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const noOutputPath = !options.output || !options.output.path;
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if (!options.mode) options.mode = "production";
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options = new WebpackOptionsDefaulter().process(options);
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options.entry = entry;
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options.context = path.join(__dirname, "fixtures");
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if (noOutputPath) options.output.path = "/";
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options.output.pathinfo = true;
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options.optimization = {
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minimize: false
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};
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const logs = {
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mkdirp: [],
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writeFile: []
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};
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const c = webpack(options);
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const files = {};
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c.outputFileSystem = {
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join() {
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return [].join.call(arguments, "/").replace(/\/+/g, "/");
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},
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mkdirp(path, callback) {
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logs.mkdirp.push(path);
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callback();
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},
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writeFile(name, content, callback) {
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logs.writeFile.push(name, content);
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files[name] = content.toString("utf-8");
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callback();
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}
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};
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c.hooks.compilation.tap(
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"CompilerTest",
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compilation => (compilation.bail = true)
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);
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c.run((err, stats) => {
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if (err) throw err;
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expect(typeof stats).toBe("object");
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const compilation = stats.compilation;
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stats = stats.toJson({
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modules: true,
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reasons: true
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});
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expect(typeof stats).toBe("object");
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expect(stats).toHaveProperty("errors");
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expect(Array.isArray(stats.errors)).toBe(true);
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if (stats.errors.length > 0) {
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expect(stats.errors[0]).toBeInstanceOf(Error);
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throw stats.errors[0];
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}
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stats.logs = logs;
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callback(stats, files, compilation);
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});
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}
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it("should compile a single file to deep output", done => {
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compile(
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"./c",
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{
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output: {
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path: "/what",
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filename: "the/hell.js"
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}
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},
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(stats, files) => {
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expect(stats.logs.mkdirp).toEqual(["/what", "/what/the"]);
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done();
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}
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);
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});
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it("should compile a single file", done => {
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compile("./c", {}, (stats, files) => {
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expect(Object.keys(files)).toEqual(["/main.js"]);
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const bundle = files["/main.js"];
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expect(bundle).toMatch("function __webpack_require__(");
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expect(bundle).toMatch(/__webpack_require__\(\/\*! \.\/a \*\/ \d\);/);
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expect(bundle).toMatch("./c.js");
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expect(bundle).toMatch("./a.js");
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expect(bundle).toMatch("This is a");
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expect(bundle).toMatch("This is c");
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expect(bundle).not.toMatch("2: function(");
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expect(bundle).not.toMatch("window");
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expect(bundle).not.toMatch("jsonp");
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expect(bundle).not.toMatch("fixtures");
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done();
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});
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});
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it("should compile a complex file", done => {
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compile("./main1", {}, (stats, files) => {
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expect(Object.keys(files)).toEqual(["/main.js"]);
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const bundle = files["/main.js"];
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expect(bundle).toMatch("function __webpack_require__(");
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expect(bundle).toMatch("__webpack_require__(/*! ./a */");
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expect(bundle).toMatch("./main1.js");
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expect(bundle).toMatch("./a.js");
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expect(bundle).toMatch("./b.js");
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expect(bundle).toMatch("./node_modules/m1/a.js");
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expect(bundle).toMatch("This is a");
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expect(bundle).toMatch("This is b");
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expect(bundle).toMatch("This is m1/a");
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expect(bundle).not.toMatch("4: function(");
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expect(bundle).not.toMatch("window");
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expect(bundle).not.toMatch("jsonp");
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expect(bundle).not.toMatch("fixtures");
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done();
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});
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});
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it("should compile a file with transitive dependencies", done => {
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compile("./abc", {}, (stats, files) => {
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expect(Object.keys(files)).toEqual(["/main.js"]);
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const bundle = files["/main.js"];
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expect(bundle).toMatch("function __webpack_require__(");
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expect(bundle).toMatch("__webpack_require__(/*! ./a */");
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expect(bundle).toMatch("__webpack_require__(/*! ./b */");
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expect(bundle).toMatch("__webpack_require__(/*! ./c */");
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expect(bundle).toMatch("./abc.js");
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expect(bundle).toMatch("./a.js");
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expect(bundle).toMatch("./b.js");
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expect(bundle).toMatch("./c.js");
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expect(bundle).toMatch("This is a");
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expect(bundle).toMatch("This is b");
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expect(bundle).toMatch("This is c");
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expect(bundle).not.toMatch("4: function(");
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expect(bundle).not.toMatch("window");
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expect(bundle).not.toMatch("jsonp");
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expect(bundle).not.toMatch("fixtures");
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done();
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});
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});
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it("should compile a file with multiple chunks", done => {
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compile("./chunks", {}, (stats, files) => {
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expect(stats.chunks).toHaveLength(2);
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expect(Object.keys(files)).toEqual(["/main.js", "/1.js"]);
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const bundle = files["/main.js"];
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const chunk = files["/1.js"];
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expect(bundle).toMatch("function __webpack_require__(");
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expect(bundle).toMatch("__webpack_require__(/*! ./b */");
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expect(chunk).not.toMatch("__webpack_require__(/* ./b */");
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expect(bundle).toMatch("./chunks.js");
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expect(chunk).toMatch("./a.js");
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expect(chunk).toMatch("./b.js");
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expect(chunk).toMatch("This is a");
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expect(bundle).not.toMatch("This is a");
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expect(chunk).toMatch("This is b");
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expect(bundle).not.toMatch("This is b");
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expect(bundle).not.toMatch("4: function(");
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expect(bundle).not.toMatch("fixtures");
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expect(chunk).not.toMatch("fixtures");
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expect(bundle).toMatch("webpackJsonp");
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expect(chunk).toMatch('window["webpackJsonp"] || []).push');
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done();
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});
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});
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describe("methods", () => {
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let compiler;
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beforeEach(() => {
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compiler = webpack({
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entry: "./c",
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context: path.join(__dirname, "fixtures"),
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output: {
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path: "/",
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pathinfo: true
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}
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});
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});
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describe("purgeInputFileSystem", () => {
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it("invokes purge() if inputFileSystem.purge", done => {
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const mockPurge = jest.fn();
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compiler.inputFileSystem = {
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purge: mockPurge
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};
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compiler.purgeInputFileSystem();
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expect(mockPurge.mock.calls.length).toBe(1);
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done();
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});
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it("does NOT invoke purge() if !inputFileSystem.purge", done => {
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const mockPurge = jest.fn();
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compiler.inputFileSystem = null;
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compiler.purgeInputFileSystem();
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expect(mockPurge.mock.calls.length).toBe(0);
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done();
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});
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});
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describe("isChild", () => {
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it("returns booleanized this.parentCompilation", done => {
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compiler.parentCompilation = "stringyStringString";
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const response1 = compiler.isChild();
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expect(response1).toBe(true);
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compiler.parentCompilation = 123456789;
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const response2 = compiler.isChild();
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expect(response2).toBe(true);
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compiler.parentCompilation = {
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what: "I belong to an object"
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};
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const response3 = compiler.isChild();
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expect(response3).toBe(true);
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compiler.parentCompilation = ["Array", 123, true, null, [], () => {}];
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const response4 = compiler.isChild();
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expect(response4).toBe(true);
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compiler.parentCompilation = false;
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const response5 = compiler.isChild();
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expect(response5).toBe(false);
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compiler.parentCompilation = 0;
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const response6 = compiler.isChild();
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expect(response6).toBe(false);
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compiler.parentCompilation = null;
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const response7 = compiler.isChild();
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expect(response7).toBe(false);
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compiler.parentCompilation = "";
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const response8 = compiler.isChild();
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expect(response8).toBe(false);
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compiler.parentCompilation = NaN;
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const response9 = compiler.isChild();
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expect(response9).toBe(false);
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done();
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});
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});
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});
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it("should not emit on errors", done => {
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const compiler = webpack({
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context: __dirname,
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mode: "production",
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entry: "./missing",
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output: {
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path: "/",
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filename: "bundle.js"
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}
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});
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compiler.outputFileSystem = new MemoryFs();
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compiler.run((err, stats) => {
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if (err) return done(err);
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if (compiler.outputFileSystem.existsSync("/bundle.js"))
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return done(new Error("Bundle should not be created on error"));
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done();
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});
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});
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it("should not emit on errors (watch)", done => {
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const compiler = webpack({
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context: __dirname,
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mode: "production",
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entry: "./missing",
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output: {
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path: "/",
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filename: "bundle.js"
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}
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});
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compiler.outputFileSystem = new MemoryFs();
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const watching = compiler.watch({}, (err, stats) => {
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watching.close();
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if (err) return done(err);
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if (compiler.outputFileSystem.existsSync("/bundle.js"))
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return done(new Error("Bundle should not be created on error"));
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done();
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});
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});
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it("should not be run twice at a time (run)", function(done) {
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const compiler = webpack({
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context: __dirname,
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mode: "production",
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entry: "./c",
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output: {
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path: "/",
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filename: "bundle.js"
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}
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});
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compiler.outputFileSystem = new MemoryFs();
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compiler.run((err, stats) => {
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if (err) return done(err);
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});
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compiler.run((err, stats) => {
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if (err) return done();
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});
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});
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it("should not be run twice at a time (watch)", function(done) {
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const compiler = webpack({
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context: __dirname,
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mode: "production",
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entry: "./c",
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output: {
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path: "/",
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filename: "bundle.js"
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}
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});
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compiler.outputFileSystem = new MemoryFs();
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compiler.watch({}, (err, stats) => {
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if (err) return done(err);
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});
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compiler.watch({}, (err, stats) => {
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if (err) return done();
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});
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});
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it("should not be run twice at a time (run - watch)", function(done) {
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const compiler = webpack({
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context: __dirname,
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mode: "production",
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entry: "./c",
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output: {
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path: "/",
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filename: "bundle.js"
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}
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});
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compiler.outputFileSystem = new MemoryFs();
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compiler.run((err, stats) => {
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if (err) return done(err);
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});
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compiler.watch({}, (err, stats) => {
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if (err) return done();
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});
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});
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it("should not be run twice at a time (watch - run)", function(done) {
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const compiler = webpack({
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context: __dirname,
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mode: "production",
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entry: "./c",
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output: {
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path: "/",
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filename: "bundle.js"
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}
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});
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compiler.outputFileSystem = new MemoryFs();
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compiler.watch({}, (err, stats) => {
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if (err) return done(err);
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});
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compiler.run((err, stats) => {
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if (err) return done();
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});
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});
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it("should not be run twice at a time (instance cb)", function(done) {
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const compiler = webpack(
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{
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context: __dirname,
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mode: "production",
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entry: "./c",
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output: {
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path: "/",
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filename: "bundle.js"
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}
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},
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() => {}
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);
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compiler.outputFileSystem = new MemoryFs();
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compiler.run((err, stats) => {
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if (err) return done();
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});
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});
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it("should run again correctly after first compilation", function(done) {
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const compiler = webpack({
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context: __dirname,
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mode: "production",
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entry: "./c",
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output: {
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path: "/",
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filename: "bundle.js"
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}
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});
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compiler.outputFileSystem = new MemoryFs();
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compiler.run((err, stats) => {
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if (err) return done(err);
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compiler.run((err, stats) => {
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if (err) return done(err);
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done();
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});
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});
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});
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it("should watch again correctly after first compilation", function(done) {
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const compiler = webpack({
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context: __dirname,
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mode: "production",
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entry: "./c",
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output: {
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path: "/",
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filename: "bundle.js"
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}
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});
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compiler.outputFileSystem = new MemoryFs();
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compiler.run((err, stats) => {
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if (err) return done(err);
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compiler.watch({}, (err, stats) => {
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if (err) return done(err);
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done();
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});
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});
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});
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it("should run again correctly after first closed watch", function(done) {
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const compiler = webpack({
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context: __dirname,
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mode: "production",
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entry: "./c",
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output: {
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path: "/",
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filename: "bundle.js"
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}
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});
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compiler.outputFileSystem = new MemoryFs();
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const watching = compiler.watch({}, (err, stats) => {
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if (err) return done(err);
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});
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watching.close(() => {
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compiler.run((err, stats) => {
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if (err) return done(err);
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done();
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});
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});
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});
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it("should watch again correctly after first closed watch", function(done) {
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const compiler = webpack({
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context: __dirname,
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mode: "production",
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entry: "./c",
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output: {
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path: "/",
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filename: "bundle.js"
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}
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});
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compiler.outputFileSystem = new MemoryFs();
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const watching = compiler.watch({}, (err, stats) => {
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if (err) return done(err);
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});
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watching.close(() => {
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compiler.watch({}, (err, stats) => {
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if (err) return done(err);
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done();
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});
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});
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});
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it("should use cache on second run call", function(done) {
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const compiler = webpack({
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context: __dirname,
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mode: "development",
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devtool: false,
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entry: "./fixtures/count-loader!./fixtures/count-loader",
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output: {
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path: "/"
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}
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});
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compiler.outputFileSystem = new MemoryFs();
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compiler.run(() => {
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compiler.run(() => {
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const result = compiler.outputFileSystem.readFileSync(
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"/main.js",
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"utf-8"
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);
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expect(result).toContain("module.exports = 0;");
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done();
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});
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});
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});
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});
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