kc3-lang/angle/tests/angle_implementation_unit_tests/TransformFeedback_unittest.cpp

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• Author : Kenneth Russell
  Date : 2014-08-25 19:02:35
  Hash : db8ae16b
  Message : Refactored TransformFeedback for multi-platform ANGLE and added tests. Added angle_implementation_unit_tests target designed for testing the cross-platform code in libGLESv2, and libGLESv2_static target as a dependency. The goal is to incorporate these tests into Chromium's angle_unittests target on all platforms; however, more work is needed to make libGLESv2's common code compile on non-Windows platforms, so this is an intermediate step. BUG=angle:719 Change-Id: Ifc44a779352294e857d6e913d9b997a60674c443 Reviewed-on: https://chromium-review.googlesource.com/214105 Reviewed-by: Geoff Lang <geofflang@chromium.org> Tested-by: Kenneth Russell <kbr@chromium.org>

• tests/angle_implementation_unit_tests/TransformFeedback_unittest.cpp

• //
  // Copyright (c) 2014 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  #include "gmock/gmock.h"
  #include "gtest/gtest.h"
  #include "libGLESv2/TransformFeedback.h"
  #include "libGLESv2/renderer/TransformFeedbackImpl.h"
  
  namespace {
  
  class MockTransformFeedbackImpl : public rx::TransformFeedbackImpl
  {
    public:
      virtual ~MockTransformFeedbackImpl() { destroy(); }
  
      MOCK_METHOD1(begin, void(GLenum primitiveMode));
      MOCK_METHOD0(end, void());
      MOCK_METHOD0(pause, void());
      MOCK_METHOD0(resume, void());
  
      MOCK_METHOD0(destroy, void());
  };
  
  class TransformFeedbackTest : public testing::Test
  {
    protected:
      virtual void SetUp()
      {
          mImpl = new MockTransformFeedbackImpl;
          EXPECT_CALL(*mImpl, destroy());
          mFeedback = new gl::TransformFeedback(mImpl, 1);
          mFeedback->addRef();
      }
  
      virtual void TearDown()
      {
          mFeedback->release();
      }
  
      MockTransformFeedbackImpl* mImpl;
      gl::TransformFeedback* mFeedback;
  };
  
  TEST_F(TransformFeedbackTest, DestructionDeletesImpl)
  {
      MockTransformFeedbackImpl* impl = new MockTransformFeedbackImpl;
      EXPECT_CALL(*impl, destroy()).Times(1).RetiresOnSaturation();
  
      gl::TransformFeedback* feedback = new gl::TransformFeedback(impl, 1);
      feedback->addRef();
      feedback->release();
  
      // Only needed because the mock is leaked if bugs are present,
      // which logs an error, but does not cause the test to fail.
      // Ordinarily mocks are verified when destroyed.
      testing::Mock::VerifyAndClear(impl);
  }
  
  TEST_F(TransformFeedbackTest, SideEffectsOfStartAndStop)
  {
      testing::InSequence seq;
  
      EXPECT_EQ(GL_FALSE, mFeedback->isStarted());
      EXPECT_CALL(*mImpl, begin(GL_TRIANGLES));
      mFeedback->start(GL_TRIANGLES);
      EXPECT_EQ(GL_TRUE, mFeedback->isStarted());
      EXPECT_EQ(GL_TRIANGLES, mFeedback->getDrawMode());
      EXPECT_CALL(*mImpl, end());
      mFeedback->stop();
      EXPECT_EQ(GL_FALSE, mFeedback->isStarted());
  }
  
  TEST_F(TransformFeedbackTest, SideEffectsOfPauseAndResume)
  {
      testing::InSequence seq;
  
      EXPECT_FALSE(mFeedback->isStarted());
      EXPECT_CALL(*mImpl, begin(GL_TRIANGLES));
      mFeedback->start(GL_TRIANGLES);
      EXPECT_EQ(GL_FALSE, mFeedback->isPaused());
      EXPECT_CALL(*mImpl, pause());
      mFeedback->pause();
      EXPECT_EQ(GL_TRUE, mFeedback->isPaused());
      EXPECT_CALL(*mImpl, resume());
      mFeedback->resume();
      EXPECT_EQ(GL_FALSE, mFeedback->isPaused());
      EXPECT_CALL(*mImpl, end());
      mFeedback->stop();
  }
  
  } // namespace