Add some simple tests for validation

Author: SpaceK33z

test/Validation.test.js

@@ -0,0 +1,49 @@
+var config = require("./fixtures/simple-config/webpack.config");
+var OptionsValidationError = require("../lib/OptionsValidationError");
+var Server = require("../lib/Server");
+var webpack = require("webpack");
+
+describe("Validation", function() {
+	var compiler;
+	before(function() {
+		compiler = webpack(config);
+	});
+	var testCases = [{
+		name: "invalid `hot` configuration",
+		config: { hot: "asdf" },
+		message: [
+			" - configuration.hot should be a boolean."
+		]
+	}, {
+		name: "invalid `public` configuration",
+		config: { public: 1 },
+		message: [
+			" - configuration.public should be a string."
+		]
+	}, {
+		name: "non-existing key configuration",
+		config: { asdf: true },
+		message: [
+			" - configuration has an unknown property 'asdf'. These properties are valid:",
+			"   object { hot?, hotOnly?, lazy?, host?, filename?, publicPath?, port?, socket?, " +
+			"watchOptions?, headers?, clientLogLevel?, key?, cert?, ca?, pfx?, pfxPassphrase?, " +
+			"inline?, public?, https?, contentBase?, watchContentBase?, open?, features?, " +
+			"compress?, proxy?, historyApiFallback?, staticOptions?, setup?, stats?, reporter?, " +
+			"noInfo?, quiet?, serverSideRender?, index?, log?, warn? }"
+		]
+	}];
+	testCases.forEach(function(testCase) {
+		it("should fail validation for " + testCase.name, function() {
+			try {
+				new Server(compiler, testCase.config);
+			} catch(e) {
+				if(!(e instanceof OptionsValidationError))
+					throw e;
+				e.message.should.startWith("Invalid configuration object.");
+				e.message.split("\n").slice(1).should.be.eql(testCase.message);
+				return;
+			}
+			throw new Error("Validation didn't fail");
+		})
+	});
+});