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96 lines
3.2 KiB
96 lines
3.2 KiB
/*
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* Copyright (C) 2017 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 <cstring>
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#include "gtest/gtest.h"
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#include "chre/apps/wifi_offload/flatbuffers_serialization.h"
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#include "include/utility.h"
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using wifi_offload::fbs::Deserialize;
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using wifi_offload::fbs::Serialize;
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template <typename TestType>
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class FlatbuffersSerializationTest : public testing::Test {
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public:
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// RandomGenerator used to initialize data-types with random values
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wifi_offload_test::RandomGenerator random_gen_;
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static const size_t kBufferLen = CHRE_MESSAGE_TO_HOST_MAX_SIZE;
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uint8_t buffer[kBufferLen];
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};
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typedef testing::Types<wifi_offload::ScanStats, wifi_offload::ScanConfig,
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wifi_offload::Vector<wifi_offload::ScanResult>>
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Implementations;
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TYPED_TEST_CASE(FlatbuffersSerializationTest, Implementations);
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TYPED_TEST(FlatbuffersSerializationTest,
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SerializationWithNullBufferReturnsRequiredBufferSize) {
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TypeParam test_obj;
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init(test_obj, this->random_gen_);
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size_t required_buff_size = Serialize(test_obj, nullptr, 0);
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EXPECT_NE(0, required_buff_size);
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size_t serialized_size = Serialize(test_obj, this->buffer, this->kBufferLen);
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ASSERT_NE(0, serialized_size);
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EXPECT_EQ(serialized_size, required_buff_size);
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}
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TYPED_TEST(FlatbuffersSerializationTest,
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SerializationThenDeserializationCreatesEqualValue) {
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TypeParam test_obj;
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init(test_obj, this->random_gen_);
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size_t serialized_size = Serialize(test_obj, this->buffer, this->kBufferLen);
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ASSERT_NE(0, serialized_size);
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TypeParam deserialized_obj;
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ASSERT_TRUE(Deserialize(this->buffer, serialized_size, &deserialized_obj));
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EXPECT_EQ(test_obj, deserialized_obj);
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}
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TYPED_TEST(FlatbuffersSerializationTest, NegativeTestsForSerialization) {
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TypeParam test_obj;
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init(test_obj, this->random_gen_);
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EXPECT_EQ(0, Serialize(test_obj, this->buffer, 0)); // zero buffer size
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EXPECT_EQ(0, Serialize(test_obj, this->buffer, 10)); // buffer too small
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}
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TYPED_TEST(FlatbuffersSerializationTest, NegativeTestsForDeserialization) {
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TypeParam test_obj;
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init(test_obj, this->random_gen_);
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// The first 4 bytes in the buffer represent the position of the root
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// table, so corrupting it should force the deserialization to fail.
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constexpr size_t kRootTableOffsetSize = 4;
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size_t serialized_size = Serialize(test_obj, this->buffer, this->kBufferLen);
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ASSERT_GE(serialized_size, kRootTableOffsetSize);
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TypeParam new_obj;
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EXPECT_FALSE(Deserialize(nullptr, serialized_size, &new_obj));
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EXPECT_FALSE(Deserialize(this->buffer, 0, &new_obj));
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// Corrupt the root table's offset
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std::memset(this->buffer, 0xff, kRootTableOffsetSize);
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EXPECT_FALSE(Deserialize(this->buffer, serialized_size, &new_obj));
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}
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