webpack/test/MultiCompiler.test.js

"use strict";

/* globals describe it */
const path = require("path");
const MemoryFs = require("memory-fs");
const webpack = require("../");

const createMultiCompiler = () => {
	const compiler = webpack([{
		context: path.join(__dirname, "fixtures"),
		entry: "./a.js"
	}, {
		context: path.join(__dirname, "fixtures"),
		entry: "./b.js"
	}]);
	compiler.outputFileSystem = new MemoryFs();
	return compiler;
};

describe("MultiCompiler", function() {
	it("should trigger 'run' for each child compiler", done => {
		const compiler = createMultiCompiler();
		let called = 0;

		compiler.hooks.run.tap("MultiCompiler test", () => called++);
		compiler.run(err => {
			if(err) {
				throw err;
			} else {
				expect(called).toBe(2);
				done();
			}
		});
	});

	it("should trigger 'watchRun' for each child compiler", done => {
		const compiler = createMultiCompiler();
		let called = 0;

		compiler.hooks.watchRun.tap("MultiCompiler test", () => called++);
		const watcher = compiler.watch(1000, err => {
			if(err) {
				throw err;
			} else {
				watcher.close();
				expect(called).toBe(2);
				done();
			}
		});
	});
});