117 lines
4.1 KiB
C++
117 lines
4.1 KiB
C++
/*
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* Copyright 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "GraphicBufferAllocatorTest"
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#include <ui/GraphicBuffer.h>
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#include <ui/GraphicBufferAllocator.h>
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#include <ui/PixelFormat.h>
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#include <gtest/gtest.h>
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#include "mock/MockGrallocAllocator.h"
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#include <algorithm>
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#include <limits>
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namespace android {
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namespace {
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constexpr uint32_t kTestWidth = 1024;
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constexpr uint32_t kTestHeight = 1;
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constexpr uint32_t kTestLayerCount = 1;
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constexpr uint64_t kTestUsage = GraphicBuffer::USAGE_SW_WRITE_OFTEN;
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} // namespace
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using ::testing::DoAll;
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using ::testing::Return;
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using ::testing::SetArgPointee;
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class TestableGraphicBufferAllocator : public GraphicBufferAllocator {
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public:
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TestableGraphicBufferAllocator() {
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mAllocator = std::make_unique<const mock::MockGrallocAllocator>();
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}
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void setUpAllocateExpectations(status_t err, uint32_t stride) {
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std::cout << "Setting expected stride to " << stride << std::endl;
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EXPECT_CALL(*(reinterpret_cast<const mock::MockGrallocAllocator*>(mAllocator.get())),
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allocate)
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.WillOnce(DoAll(SetArgPointee<7>(stride), Return(err)));
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}
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std::unique_ptr<const GrallocAllocator>& getAllocator() { return mAllocator; }
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};
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class GraphicBufferAllocatorTest : public testing::Test {
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public:
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GraphicBufferAllocatorTest() : mAllocator() {}
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const TestableGraphicBufferAllocator& getAllocator() { return mAllocator; }
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protected:
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TestableGraphicBufferAllocator mAllocator;
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};
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TEST_F(GraphicBufferAllocatorTest, AllocateNoError) {
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mAllocator.setUpAllocateExpectations(NO_ERROR, kTestWidth);
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android::PixelFormat format = PIXEL_FORMAT_RGBA_8888;
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uint32_t stride = 0;
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buffer_handle_t handle;
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status_t err = mAllocator.allocate(kTestWidth, kTestHeight, format, kTestLayerCount, kTestUsage,
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&handle, &stride, 0, "GraphicBufferAllocatorTest");
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ASSERT_EQ(NO_ERROR, err);
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ASSERT_EQ(kTestWidth, stride);
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}
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TEST_F(GraphicBufferAllocatorTest, AllocateZeroStride) {
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android::PixelFormat format = PIXEL_FORMAT_RGBA_8888;
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uint32_t expectedStride = 0;
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mAllocator.setUpAllocateExpectations(NO_ERROR, expectedStride);
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uint32_t stride = 0;
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buffer_handle_t handle;
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// a divide by zero would cause a crash
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status_t err = mAllocator.allocate(kTestWidth, kTestHeight, format, kTestLayerCount, kTestUsage,
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&handle, &stride, 0, "GraphicBufferAllocatorTest");
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ASSERT_EQ(NO_ERROR, err);
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ASSERT_EQ(expectedStride, stride);
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}
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TEST_F(GraphicBufferAllocatorTest, AllocateLargeStride) {
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uint32_t height = std::numeric_limits<uint32_t>::max();
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uint32_t bpp = 4;
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android::PixelFormat format = PIXEL_FORMAT_RGBA_8888;
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if (std::numeric_limits<size_t>::max() / height / bpp >= std::numeric_limits<uint32_t>::max()) {
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std::cout << "stride cannot cause overflow" << std::endl;
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GTEST_SUCCEED() << "stride cannot cause overflow";
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return;
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}
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uint32_t width = std::numeric_limits<size_t>::max() / height / bpp;
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uint32_t expectedStride = std::numeric_limits<uint32_t>::max();
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mAllocator.setUpAllocateExpectations(NO_ERROR, expectedStride);
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uint32_t stride = 0;
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buffer_handle_t handle;
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// an overflow would cause a crash
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status_t err = mAllocator.allocate(width, height, format, kTestLayerCount, kTestUsage, &handle,
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&stride, 0, "GraphicBufferAllocatorTest");
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ASSERT_EQ(NO_ERROR, err);
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ASSERT_EQ(expectedStride, stride);
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}
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} // namespace android
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