Update test

Test

tests/test.java

@@ -1,5 +1,23 @@
 package tests;
+import src.*;
 
 public class test {
+    public static void main(String[] args){
+        Category Engine = new Category("Engine");
+        Category Transmission = new Category("Transmission");
+        Category Exterior= new Category("Exterior");
+        Category Interior= new Category("Interior");
+
+        //PartType
+        PartType EG100= new PartType("EG100", Engine);
+        PartType EG133= new PartType("EG133", Engine);
+        PartType EG210= new PartType("EG210", Engine);
+        PartType ED110= new PartType("ED110", Engine);
+        PartType ED180= new PartType("ED180", Engine);
+        PartType EH120= new PartType("EH120", Engine);
+
+        //Transmission
+        PartType TM5= new PartType("TM5", Engine);
+    }
     
 }