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 * modification, are permitted provided that the following conditions are
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 *
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// This file implements unit tests for class ClassManager.

#include <algorithm>

#include "core/cross/class_manager.h"
#include "core/cross/object_manager.h"
#include "tests/common/win/testing_common.h"

namespace o3d {

namespace {
class CreatableClass : public ObjectBase {
 public:
  explicit CreatableClass(ServiceLocator* service_locator)
      : ObjectBase(service_locator) {
  }
  static ObjectBase::Ref Create(ServiceLocator* service_locator) {
    return ObjectBase::Ref(new CreatableClass(service_locator));
  }
  O3D_DECL_CLASS(CreatableClass, ObjectBase)
};
O3D_DEFN_CLASS(CreatableClass, ObjectBase);

class NonCreatableClass : public ObjectBase {
 public:
  explicit NonCreatableClass(ServiceLocator* service_locator)
      : ObjectBase(service_locator) {
  }
  static ObjectBase::Ref Create(ServiceLocator* service_locator) {
    return ObjectBase::Ref();
  }
  O3D_DECL_CLASS(NonCreatableClass, ObjectBase)
};
O3D_DEFN_CLASS(NonCreatableClass, ObjectBase);
}

class ClassManagerTest : public testing::Test {
 protected:

  virtual void SetUp() {
    service_locator_ = new ServiceLocator;
    object_manager_ = new ObjectManager(service_locator_);
    class_manager_ = new ClassManager(service_locator_);
    class_manager_->AddTypedClass<CreatableClass>();
    class_manager_->AddTypedClass<NonCreatableClass>();
  }

  virtual void TearDown() {
    delete class_manager_;
    delete object_manager_;
    delete service_locator_;
  }

  ServiceLocator* service_locator_;
  ObjectManager* object_manager_;
  ClassManager* class_manager_;
};

TEST_F(ClassManagerTest, ShouldNotBeAbleToFindClassWithNameThatIsNotAdded) {
  EXPECT_EQ(NULL, class_manager_->GetClassByClassName(
      "o3d.NonexistentClass"));
}

TEST_F(ClassManagerTest, ShouldGetCreatableClassByName) {
  EXPECT_EQ(CreatableClass::GetApparentClass(),
      class_manager_->GetClassByClassName("o3d.CreatableClass"));
}

TEST_F(ClassManagerTest, ShouldCreateCreatableClass) {
  ObjectBase::Ref object = class_manager_->CreateObject(
      "o3d.CreatableClass");
  EXPECT_FALSE(object.IsNull());
}

TEST_F(ClassManagerTest, ShouldGetNonCreatableClassByName) {
  EXPECT_EQ(NonCreatableClass::GetApparentClass(),
      class_manager_->GetClassByClassName("o3d.NonCreatableClass"));
}

TEST_F(ClassManagerTest, ShouldNotCreateNonCreatableClass) {
  ObjectBase::Ref object = class_manager_->CreateObject(
      "o3d.NonCreatableClass");
  EXPECT_TRUE(object.IsNull());
}

TEST_F(ClassManagerTest, ClassShouldDeriveFromObjectBase) {
  EXPECT_TRUE(class_manager_->ClassNameIsAClass(
      "o3d.NonCreatableClass",
      ObjectBase::GetApparentClass()));
}

TEST_F(ClassManagerTest, ClassShouldDeriveFromItself) {
  EXPECT_TRUE(class_manager_->ClassNameIsAClass(
      "o3d.NonCreatableClass",
      NonCreatableClass::GetApparentClass()));
}

TEST_F(ClassManagerTest, ShouldGetAllClasses) {
  std::vector<const ObjectBase::Class*> classes =
      class_manager_->GetAllClasses();
  ASSERT_FALSE(classes.end() == std::find(
      classes.begin(), classes.end(),
      CreatableClass::GetApparentClass()));
  ASSERT_FALSE(classes.end() == std::find(
      classes.begin(), classes.end(),
      NonCreatableClass::GetApparentClass()));
}
}  // namespace o3d