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//
// 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 "libANGLE/Buffer.h"
#include "libANGLE/Caps.h"
#include "libANGLE/TransformFeedback.h"
#include "libANGLE/renderer/BufferImpl_mock.h"
#include "libANGLE/renderer/TransformFeedbackImpl_mock.h"
#include "tests/angle_unittests_utils.h"
using ::testing::_;
using ::testing::get;
using ::testing::Return;
using ::testing::SetArgumentPointee;
namespace
{
ACTION(CreateMockTransformFeedbackImpl)
{
return new rx::MockTransformFeedbackImpl(arg0);
}
class TransformFeedbackTest : public testing::Test
{
protected:
TransformFeedbackTest() : mImpl(nullptr), mFeedback(nullptr) {}
void SetUp() override
{
EXPECT_CALL(mMockFactory, createTransformFeedback(_))
.WillOnce(CreateMockTransformFeedbackImpl())
.RetiresOnSaturation();
// Set a reasonable number of tf attributes
mCaps.maxTransformFeedbackSeparateAttributes = 8;
mFeedback = new gl::TransformFeedback(&mMockFactory, 1, mCaps);
mFeedback->addRef();
mImpl = rx::GetImplAs<rx::MockTransformFeedbackImpl>(mFeedback);
EXPECT_CALL(*mImpl, destructor());
}
void TearDown() override
{
if (mFeedback)
{
mFeedback->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(mImpl);
}
rx::MockGLFactory mMockFactory;
rx::MockTransformFeedbackImpl* mImpl;
gl::TransformFeedback* mFeedback;
gl::Caps mCaps;
};
TEST_F(TransformFeedbackTest, SideEffectsOfStartAndStop)
{
testing::InSequence seq;
EXPECT_FALSE(mFeedback->isActive());
EXPECT_CALL(*mImpl, begin(GL_TRIANGLES));
mFeedback->begin(GL_TRIANGLES, nullptr);
EXPECT_TRUE(mFeedback->isActive());
EXPECT_EQ(static_cast<GLenum>(GL_TRIANGLES), mFeedback->getPrimitiveMode());
EXPECT_CALL(*mImpl, end());
mFeedback->end();
EXPECT_FALSE(mFeedback->isActive());
}
TEST_F(TransformFeedbackTest, SideEffectsOfPauseAndResume)
{
testing::InSequence seq;
EXPECT_FALSE(mFeedback->isActive());
EXPECT_CALL(*mImpl, begin(GL_TRIANGLES));
mFeedback->begin(GL_TRIANGLES, nullptr);
EXPECT_FALSE(mFeedback->isPaused());
EXPECT_CALL(*mImpl, pause());
mFeedback->pause();
EXPECT_TRUE(mFeedback->isPaused());
EXPECT_CALL(*mImpl, resume());
mFeedback->resume();
EXPECT_FALSE(mFeedback->isPaused());
EXPECT_CALL(*mImpl, end());
mFeedback->end();
}
TEST_F(TransformFeedbackTest, BufferBinding)
{
rx::MockBufferImpl *bufferImpl = new rx::MockBufferImpl;
gl::Buffer *buffer = new gl::Buffer(bufferImpl, 1);
EXPECT_CALL(*bufferImpl, destructor()).Times(1).RetiresOnSaturation();
static const size_t bindIndex = 0;
EXPECT_EQ(mFeedback->getIndexedBufferCount(), mCaps.maxTransformFeedbackSeparateAttributes);
EXPECT_CALL(*mImpl, bindGenericBuffer(_));
mFeedback->bindGenericBuffer(buffer);
EXPECT_EQ(mFeedback->getGenericBuffer().get(), buffer);
EXPECT_CALL(*mImpl, bindIndexedBuffer(_, _));
mFeedback->bindIndexedBuffer(bindIndex, buffer, 0, 1);
for (size_t i = 0; i < mFeedback->getIndexedBufferCount(); i++)
{
if (i == bindIndex)
{
EXPECT_EQ(mFeedback->getIndexedBuffer(i).get(), buffer);
}
else
{
EXPECT_EQ(mFeedback->getIndexedBuffer(i).get(), nullptr);
}
}
// force-release the feedback object to ensure the buffer is released.
const size_t releaseCount = mFeedback->getRefCount();
for (size_t count = 0; count < releaseCount; ++count)
{
mFeedback->release();
}
mFeedback = nullptr;
testing::Mock::VerifyAndClear(bufferImpl);
}
} // anonymous namespace
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