Add tests for HotUpdateChunkTemplate (webpack#3867)

alistairjcbrown · TheLarkInn · commit 9681a3b15f6c · 2017-01-09T23:16:59.000-06:00
diff --git a/test/HotUpdateChunkTemplate.test.js b/test/HotUpdateChunkTemplate.test.js
@@ -0,0 +1,68 @@
+var should = require("should");
+var sinon = require("sinon");
+var HotUpdateChunkTemplate = require("../lib/HotUpdateChunkTemplate");
+
+describe("HotUpdateChunkTemplate", function() {
+	var env;
+
+	beforeEach(function() {
+		env = {
+			myHotUpdateChunkTemplate: new HotUpdateChunkTemplate({})
+		};
+	});
+
+	describe("render", function() {
+		beforeEach(function() {
+			env.renderContext = {
+				renderChunkModules: sinon.spy(),
+				applyPluginsWaterfall: sinon.spy()
+			};
+			var renderArguments = [
+				"id", ["module1", "module2"],
+				["module3", "module4"],
+				{},
+				"moduleTemplate", ["template1"]
+			];
+			env.myHotUpdateChunkTemplate.render.apply(env.renderContext, renderArguments);
+			env.pluginsCall = env.renderContext.applyPluginsWaterfall;
+		});
+
+		it("renders chunk modules", function() {
+			env.renderContext.renderChunkModules.callCount.should.be.exactly(1);
+		});
+
+		it("applies modules plugins", function() {
+			env.pluginsCall.callCount.should.be.exactly(2);
+			env.pluginsCall.firstCall.args[0].should.be.exactly("modules");
+		});
+
+		it("applies render plugins", function() {
+			env.pluginsCall.callCount.should.be.exactly(2);
+			env.pluginsCall.secondCall.args[0].should.be.exactly("render");
+		});
+	});
+
+	describe("updateHash", function() {
+		beforeEach(function() {
+			env.hash = {
+				update: sinon.spy()
+			};
+			env.updateHashContext = {
+				applyPlugins: sinon.spy()
+			};
+			env.myHotUpdateChunkTemplate.updateHash.call(env.updateHashContext, env.hash);
+		});
+
+		it("updates hash", function() {
+			env.hash.update.callCount.should.be.exactly(2);
+			env.hash.update.firstCall.args[0].should.be.exactly("HotUpdateChunkTemplate");
+			env.hash.update.secondCall.args[0].should.be.exactly("1");
+		});
+
+		it("applies hash plugin", function() {
+			env.updateHashContext.applyPlugins.callCount.should.be.exactly(1);
+			env.updateHashContext.applyPlugins.firstCall.args[0].should.be.exactly("hash");
+			env.updateHashContext.applyPlugins.firstCall.args[1].should.be.exactly(env.hash);
+		});
+	});
+});
