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91 lines
2.8 KiB
91 lines
2.8 KiB
/*
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* Copyright (C) 2020 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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#include "minikin/Buffer.h"
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#include <gtest/gtest.h>
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namespace minikin {
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class TestObject {
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public:
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void writeTo(BufferWriter* writer) const {
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// Total size = 20
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// uint8_t (1)
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writer->write<uint8_t>(0xAB);
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// padding (1), uint16_t (2)
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writer->write<uint16_t>(0xCDEF);
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// uint8_t(1)
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writer->write<uint8_t>(0x01);
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// padding (3), array size (4), uint32_t (4) * 2
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uint32_t uint32Array[] = {0x98765432, 0x98765433};
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writer->writeArray<uint32_t>(uint32Array, 2);
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}
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};
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TEST(BufferTest, testMeasureWriteRead) {
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TestObject testObject;
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BufferWriter fakeWriter(nullptr);
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testObject.writeTo(&fakeWriter);
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ASSERT_EQ(fakeWriter.size(), 20u);
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std::vector<uint8_t> buffer(fakeWriter.size());
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BufferWriter writer(buffer.data());
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testObject.writeTo(&writer);
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ASSERT_EQ(writer.size(), buffer.size());
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BufferReader reader(buffer.data());
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ASSERT_EQ(reader.data(), buffer.data());
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ASSERT_EQ(reader.pos(), 0u);
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ASSERT_EQ(reader.read<uint8_t>(), 0xABu);
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ASSERT_EQ(reader.pos(), 1u);
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ASSERT_EQ(reader.read<uint16_t>(), 0xCDEFu);
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ASSERT_EQ(reader.pos(), 4u);
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ASSERT_EQ(reader.read<uint8_t>(), 0x01u);
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ASSERT_EQ(reader.pos(), 5u);
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auto [uint32Array, size] = reader.readArray<uint32_t>();
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ASSERT_EQ(size, 2u);
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ASSERT_EQ(uint32Array[0], 0x98765432u);
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ASSERT_EQ(uint32Array[1], 0x98765433u);
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ASSERT_EQ(reader.pos(), 20u);
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}
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TEST(BufferTest, testSkip) {
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TestObject testObject;
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BufferWriter fakeWriter(nullptr);
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testObject.writeTo(&fakeWriter);
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ASSERT_EQ(fakeWriter.size(), 20u);
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std::vector<uint8_t> buffer(fakeWriter.size());
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BufferWriter writer(buffer.data());
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testObject.writeTo(&writer);
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ASSERT_EQ(writer.size(), buffer.size());
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BufferReader reader(buffer.data());
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ASSERT_EQ(reader.data(), buffer.data());
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ASSERT_EQ(reader.pos(), 0u);
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reader.skip<uint8_t>();
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ASSERT_EQ(reader.pos(), 1u);
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reader.read<uint16_t>();
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ASSERT_EQ(reader.pos(), 4u);
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reader.skip<uint8_t>();
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ASSERT_EQ(reader.pos(), 5u);
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reader.skipArray<uint32_t>();
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ASSERT_EQ(reader.pos(), 20u);
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}
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} // namespace minikin
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