created unit test class

test/unify/UnifyTest.java

@@ -0,0 +1,32 @@
+package unify;
+
+import org.apache.commons.bcel6.generic.ReferenceType;
+import org.junit.Test;
+
+import de.dhbwstuttgart.bytecode.TypePlaceholderType;
+import de.dhbwstuttgart.syntaxtree.type.RefType;
+import de.dhbwstuttgart.syntaxtree.type.Type;
+import de.dhbwstuttgart.syntaxtree.type.TypePlaceholder;
+import de.dhbwstuttgart.typeinference.Pair;
+
+public class UnifyTest {
+	
+	@Test
+	public void unifyTestSimpleTypes() {
+		Type tph1 = TypePlaceholder.backdoorCreate("b");
+		Type tph2 = TypePlaceholder.backdoorCreate("a");
+		//Type refT = new RefType()
+		
+		//Pair x = new Pair();
+	}
+	
+	@Test
+	public void unifyTestInheritance() {
+		
+	}
+	
+	@Test
+	public void unifyTestWildcards() {
+		
+	}
+}