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/*
* Copyright (C) 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <gtest/gtest.h>
#include <ui/BufferHubMetadata.h>
namespace android {
namespace dvr {
constexpr size_t kEmptyUserMetadataSize = 0;
class BufferHubMetadataTest : public ::testing::Test {};
TEST_F(BufferHubMetadataTest, Create_UserMetdataSizeTooBig) {
BufferHubMetadata m1 = BufferHubMetadata::create(std::numeric_limits<uint32_t>::max());
EXPECT_FALSE(m1.isValid());
}
TEST_F(BufferHubMetadataTest, Create_Success) {
BufferHubMetadata m1 = BufferHubMetadata::create(kEmptyUserMetadataSize);
EXPECT_TRUE(m1.isValid());
EXPECT_NE(m1.metadataHeader(), nullptr);
}
TEST_F(BufferHubMetadataTest, Import_Success) {
BufferHubMetadata m1 = BufferHubMetadata::create(kEmptyUserMetadataSize);
EXPECT_TRUE(m1.isValid());
EXPECT_NE(m1.metadataHeader(), nullptr);
unique_fd h2 = unique_fd(dup(m1.ashmemFd().get()));
EXPECT_NE(h2.get(), -1);
BufferHubMetadata m2 = BufferHubMetadata::import(std::move(h2));
EXPECT_EQ(h2.get(), -1);
EXPECT_TRUE(m1.isValid());
BufferHubDefs::MetadataHeader* mh1 = m1.metadataHeader();
EXPECT_NE(mh1, nullptr);
// Check if the newly allocated buffer is initialized in released state (i.e.
// state equals to 0U).
EXPECT_TRUE(mh1->bufferState.load() == 0U);
EXPECT_TRUE(m2.isValid());
BufferHubDefs::MetadataHeader* mh2 = m2.metadataHeader();
EXPECT_NE(mh2, nullptr);
// Check if the newly allocated buffer is initialized in released state (i.e.
// state equals to 0U).
EXPECT_TRUE(mh2->bufferState.load() == 0U);
}
TEST_F(BufferHubMetadataTest, MoveMetadataInvalidatesOldOne) {
BufferHubMetadata m1 = BufferHubMetadata::create(sizeof(int));
EXPECT_TRUE(m1.isValid());
EXPECT_NE(m1.metadataHeader(), nullptr);
EXPECT_NE(m1.ashmemFd().get(), -1);
EXPECT_EQ(m1.userMetadataSize(), sizeof(int));
BufferHubMetadata m2 = std::move(m1);
// After the move, the metadata header (a raw pointer) should be reset in the older buffer.
EXPECT_EQ(m1.metadataHeader(), nullptr);
EXPECT_NE(m2.metadataHeader(), nullptr);
EXPECT_EQ(m1.ashmemFd().get(), -1);
EXPECT_NE(m2.ashmemFd().get(), -1);
EXPECT_EQ(m1.userMetadataSize(), 0U);
EXPECT_EQ(m2.userMetadataSize(), sizeof(int));
BufferHubMetadata m3{std::move(m2)};
// After the move, the metadata header (a raw pointer) should be reset in the older buffer.
EXPECT_EQ(m2.metadataHeader(), nullptr);
EXPECT_NE(m3.metadataHeader(), nullptr);
EXPECT_EQ(m2.ashmemFd().get(), -1);
EXPECT_NE(m3.ashmemFd().get(), -1);
EXPECT_EQ(m2.userMetadataSize(), 0U);
EXPECT_EQ(m3.userMetadataSize(), sizeof(int));
}
} // namespace dvr
} // namespace android
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