Added test class.

build.gradle

@@ -21,6 +21,8 @@ repositories {
 dependencies {
 	compile 'servletapi:servlet-api:+'
 	compile 'javax.servlet.jsp:jsp-api:+'
+
+	testCompile 'org.testng:testng:+'
 }
 
 compileJava {
@@ -51,6 +53,10 @@ clean {
 	delete deployDir
 }
 
+test {
+	useTestNG()
+}
+
 task wrapper(type: Wrapper) {
 	gradleVersion = gradle.gradleVersion
 }