Adding some tests for PR 1051

modules/swagger-codegen/src/test/scala/Java/JavaModelEnumTest.scala

@@ -31,4 +31,55 @@ class JavaModelEnumTest extends FlatSpec with Matchers {
     enumVar.baseType should be("String")
     enumVar.isEnum should equal(true)
   }
+  
+  it should "not override identical parent enums" in {
+    
+    val identicalEnumProperty = new StringProperty()
+    identicalEnumProperty.setEnum(List("VALUE1", "VALUE2", "VALUE3").asJava)
+    
+    val subEnumProperty = new StringProperty()
+    subEnumProperty.setEnum(List("SUB1", "SUB2", "SUB3").asJava)
+    
+    // Add one enum ptoperty to the parent
+    val parentProperties = new java.util.HashMap[String, Property]()
+    parentProperties.put("sharedThing", identicalEnumProperty)
+    
+    // Add TWO enums to the subType model; one of which is identical to the one in parent class
+    val subProperties = new java.util.HashMap[String, Property]()
+    subProperties.put("sharedThing", identicalEnumProperty)
+    subProperties.put("unsharedThing", identicalEnumProperty)
+
+    val parentModel = new ModelImpl();
+    parentModel.setProperties(parentProperties);
+    parentModel.name("parentModel");
+        
+    val subModel = new ModelImpl();
+    subModel.setProperties(subProperties);
+    subModel.name("subModel");
+    
+    val model = new ComposedModel()
+      .parent(new RefModel(parentModel.getName()))
+      .child(subModel)
+      .interfaces(new java.util.ArrayList[RefModel]())
+      
+    val codegen = new JavaClientCodegen()
+    val allModels = new java.util.HashMap[String, Model]()
+    allModels.put(codegen.toModelName(parentModel.getName()), parentModel)
+    allModels.put(codegen.toModelName(subModel.getName()), subModel)
+    
+    val cm = codegen.fromModel("sample", model, allModels)
+
+    cm.name should be("sample")
+    cm.classname should be("Sample")
+    cm.parent should be("ParentModel")
+    cm.imports.asScala should be(Set("ParentModel"))
+    
+    // Assert that only the unshared/uninherited enum remains
+    cm.vars.size should be (1)
+    val enumVar = cm.vars.get(0)
+    enumVar.baseName should be("unsharedThing")
+    enumVar.datatype should be("String")
+    enumVar.datatypeWithEnum should be("UnsharedThingEnum")
+    enumVar.isEnum should equal(true)
+  }
 }