Added & tested equals() and hashCode() in IntegerArgumentType

build.gradle

@@ -30,6 +30,7 @@ dependencies {
     testCompile 'junit:junit-dep:4.10'
     testCompile 'org.hamcrest:hamcrest-library:1.2.1'
     testCompile 'org.mockito:mockito-core:1.8.5'
+    testCompile 'com.google.guava:guava-testlib:17.0'
 }
 
 task sourcesJar(type: Jar) {
@@ -37,6 +38,14 @@ task sourcesJar(type: Jar) {
     from sourceSets.main.allSource
 }
 
+test {
+    testLogging {
+        events "failed", "skipped"
+        showStandardStreams true
+        showExceptions true
+    }
+}
+
 artifacts {
     archives jar
     archives sourcesJar