webpack/test/buildDeps.js

Packs CommonJs Modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support loading of js, json, jade, coffee, css, ... out of the box and more with custom loaders.

/*
	MIT License http://www.opensource.org/licenses/mit-license.php
	Author Tobias Koppers @sokra
*/
var should = require("should");
var path = require("path");
var buildDeps = require("../lib/buildDeps");

describe("buildDeps", function() {
	describe("of main1", function() {
		var depTree;
		before(function(done) {
			buildDeps(path.join(__dirname, "fixtures"), "./main1.js", function(err, tree) {
				if(err) return done(err);
				should.exist(tree);
				depTree = tree;
				done();
			});
		});

		it("should compile", function() {
			depTree.should.have.property("modulesByFile").and.be.a("object");
			depTree.should.have.property("modules").and.be.a("object");
			depTree.should.have.property("chunks").and.be.a("object");
		});

		it("should have all modules loaded", function() {
			depTree.modulesByFile.should.have.keys([
				path.join(__dirname, "fixtures", "main1.js"),
				path.join(__dirname, "fixtures", "a.js"),
				path.join(__dirname, "fixtures", "b.js"),
				path.join(__dirname, "fixtures", "node_modules", "m1", "a.js")
			]);
		});

		it("should be one chunk", function() {
			depTree.chunks.should.have.keys(["main"]);
			for(var i in depTree.modulesById) {
				depTree.modulesById[i].should.have.property("chunks", ["main"]);
			}
		});
	});

	describe("of main2", function() {
		var depTree;
		before(function(done) {
			buildDeps(path.join(__dirname, "fixtures"), "./main2.js", function(err, tree) {
				if(err) return done(err);
				should.not.exist(err);
				should.exist(tree);
				depTree = tree;
				done();
			});
		});
		
		it("should compile", function() {
			depTree.should.have.property("modulesByFile").and.be.a("object");
			depTree.should.have.property("modules").and.be.a("object");
			depTree.should.have.property("chunks").and.be.a("object");
		});

		it("should have all modules loaded", function() {
			depTree.modulesByFile.should.have.keys([
				path.join(__dirname, "fixtures", "main2.js"),
				path.join(__dirname, "fixtures", "a.js"),
				path.join(__dirname, "fixtures", "b.js"),
				path.join(__dirname, "fixtures", "node_modules", "m1", "a.js"),
				path.join(__dirname, "fixtures", "node_modules", "m1", "b.js")
			]);
		});

		it("should be two chunks", function() {
			depTree.chunks.should.have.keys(["1", "main"]);
			depTree.modulesByFile[path.join(__dirname, "fixtures", "main2.js")].chunks.should.be.eql(["main"]);
			depTree.modulesByFile[path.join(__dirname, "fixtures", "a.js")].chunks.should.be.eql(["main"]);
			depTree.modulesByFile[path.join(__dirname, "fixtures", "b.js")].chunks.should.be.eql(["main"]);
			depTree.modulesByFile[path.join(__dirname, "fixtures", "node_modules", "m1", "a.js")].chunks.should.be.eql([1]);
			depTree.modulesByFile[path.join(__dirname, "fixtures", "node_modules", "m1", "b.js")].chunks.should.be.eql([1]);
		});
	});

	describe("of main3", function() {
		var depTree;
		before(function(done) {
			buildDeps(path.join(__dirname, "fixtures"), "./main3.js", function(err, tree) {
				if(err) return done(err);
				should.not.exist(err);
				should.exist(tree);
				depTree = tree;
				done();
			});
		});
		
		it("should compile", function() {
			depTree.should.have.property("modulesByFile").and.be.a("object");
			depTree.should.have.property("modules").and.be.a("object");
			depTree.should.have.property("chunks").and.be.a("object");
		});

		it("should have all modules loaded", function() {
			depTree.modulesByFile.should.have.keys([
				path.join(__dirname, "fixtures", "main3.js"),
				path.join(__dirname, "fixtures", "a.js"),
				path.join(__dirname, "fixtures", "c.js")
			]);
		});

		it("should be two chunks", function() {
			depTree.chunks.should.have.keys(["1", "main"]);
			depTree.modulesByFile[path.join(__dirname, "fixtures", "main3.js")].chunks.should.be.eql(["main"]);
			depTree.modulesByFile[path.join(__dirname, "fixtures", "a.js")].chunks.should.be.eql(["main", 1]);
			depTree.modulesByFile[path.join(__dirname, "fixtures", "c.js")].chunks.should.be.eql([1]);
		});
		
		it("should have correct chucks", function() {
			var main3id = ""+depTree.modulesByFile[path.join(__dirname, "fixtures", "main3.js")].id;
			var aid = ""+depTree.modulesByFile[path.join(__dirname, "fixtures", "a.js")].id;
			var cid = ""+depTree.modulesByFile[path.join(__dirname, "fixtures", "c.js")].id;
			depTree.chunks.should.have.property("main").have.property("modules");
			depTree.chunks.should.have.property("1").have.property("modules");
			depTree.chunks.main.modules.should.have.keys([main3id, aid]);
			depTree.chunks[1].modules.should.have.keys([cid, aid]);
			depTree.chunks.main.modules[main3id].should.be.equal("include");
			depTree.chunks.main.modules[aid].should.be.equal("include");
			depTree.chunks[1].modules[aid].should.be.equal("in-parent");
			depTree.chunks[1].modules[cid].should.be.equal("include");
		});
	});
});