Revert "Removed component tests as they're redundant."

This reverts commit f64e711f68.

Engine/source/unit/tests/testComponents.cpp

@@ -0,0 +1,154 @@
+//-----------------------------------------------------------------------------
+// Copyright (c) 2012 GarageGames, LLC
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//-----------------------------------------------------------------------------
+
+#include "unit/test.h"
+#include "unit/memoryTester.h"
+#include "component/simComponent.h"
+
+using namespace UnitTesting;
+
+//////////////////////////////////////////////////////////////////////////
+
+class CachedInterfaceExampleComponent : public SimComponent
+{
+   typedef SimComponent Parent;
+
+   ComponentProperty<U32> mMyId;
+   static U32 smNumInstances;
+   ComponentProperty<U32> *mpU32; // CodeReview [patw, 2, 17, 2007] Make ref objects when this is in Jugg
+
+public:
+   DECLARE_CONOBJECT( CachedInterfaceExampleComponent );
+
+   CachedInterfaceExampleComponent() : mpU32( NULL )
+   {
+      mMyId = ( ( 1 << 24 ) | smNumInstances++ );
+   }
+   virtual ~CachedInterfaceExampleComponent()
+   {
+      smNumInstances--;
+   }
+
+public:
+   //////////////////////////////////////////////////////////////////////////
+
+   virtual void registerInterfaces( const SimComponent *owner )
+   {
+      // Register a cached interface for this 
+      registerCachedInterface( NULL, "aU32", this, &mMyId );
+   }
+
+   //////////////////////////////////////////////////////////////////////////
+
+   bool onComponentRegister( SimComponent *owner )
+   {
+      // Call up to the parent first
+      if( !Parent::onComponentRegister( owner ) )
+         return false;
+
+      // We want to get an interface from another object in our containing component
+      // to simulate component interdependency. 
+      ComponentInterfaceList list;
+
+      // Enumerate the interfaces on the owner, only ignore interfaces that this object owns
+      if( !_getOwner()->getInterfaces( &list, NULL, "aU32", this, true ) )
+         return false;
+
+      // Sanity check before just assigning all willy-nilly
+      for( ComponentInterfaceListIterator i = list.begin(); i != list.end(); i++ )
+      {
+         mpU32 = dynamic_cast<ComponentProperty<U32> *>( (*i) );
+
+         if( mpU32 != NULL )
+            return true;
+      }
+
+      return false;
+   }
+
+   //////////////////////////////////////////////////////////////////////////
+
+   // CodeReview [patw, 2, 17, 2007] I'm going to make another lightweight interface
+   // for this functionality later
+   void unit_test( UnitTest *test )
+   {
+      AssertFatal(test, "CachedInterfaceExampleComponent::unit_test - NULL UnitTest");
+
+      if( !test )
+         return;
+
+      test->test( mpU32 != NULL, "Pointer to dependent interface is NULL" );
+      if( mpU32 )
+      {
+         test->test( *(*mpU32) & ( 1 << 24 ), "Pointer to interface data is bogus." );
+         test->test( *(*mpU32) != *mMyId, "Two of me have the same ID, bad!" );
+      }
+   }
+};
+
+IMPLEMENT_CONOBJECT( CachedInterfaceExampleComponent );
+U32 CachedInterfaceExampleComponent::smNumInstances = 0;
+
+ConsoleDocClass( CachedInterfaceExampleComponent,
+				"@brief Legacy from older component system.\n\n"
+				"Not intended for game development, for editors or internal use only.\n\n "
+				"@internal");
+
+//////////////////////////////////////////////////////////////////////////
+
+CreateUnitTest(TestComponentInterfacing, "Components/Composition")
+{
+   void run()
+   {
+      MemoryTester m;
+      m.mark();
+
+      SimComponent *testComponent = new SimComponent();
+      CachedInterfaceExampleComponent *componentA = new CachedInterfaceExampleComponent();
+      CachedInterfaceExampleComponent *componentB = new CachedInterfaceExampleComponent();
+
+      // Register sub-components
+      test( componentA->registerObject(), "Failed to register componentA" );
+      test( componentB->registerObject(), "Failed to register componentB" );
+
+      // Add the components
+      test( testComponent->addComponent( componentA ), "Failed to add component a to testComponent" );
+      test( testComponent->addComponent( componentB ), "Failed to add component b to testComponent" );
+
+      test( componentA->getOwner() == testComponent, "testComponent did not properly set the mOwner field of componentA to NULL." );
+      test( componentB->getOwner() == testComponent, "testComponent did not properly set the mOwner field of componentB to NULL." );
+
+      // Register the object with the simulation, kicking off the interface registration
+      const bool registered = testComponent->registerObject();
+      test( registered, "Failed to register testComponent" );
+
+      // Interface tests
+      if( registered )
+      {
+         componentA->unit_test( this );
+         componentB->unit_test( this );
+         testComponent->deleteObject();
+      } 
+
+      test( m.check(), "Component composition test leaked memory." );
+   }
+};