140 lines
3.5 KiB
C++
140 lines
3.5 KiB
C++
/*
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* Copyright (C) 2021 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 "gtest/gtest.h"
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#include "chre/util/system/shared_ptr.h"
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namespace {
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class TestBase : public chre::RefBase<TestBase> {
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public:
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TestBase() {}
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TestBase(int value) : value(value) {}
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~TestBase() {
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destructorCount++;
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}
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int value = 0;
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static int destructorCount;
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};
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int TestBase::destructorCount = 0;
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struct BigArray : public chre::RefBase<BigArray> {
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int x[2048];
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};
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class SharedPtrTest : public testing::Test {
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public:
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void SetUp() override {
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TestBase::destructorCount = 0;
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}
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};
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} // namespace
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TEST_F(SharedPtrTest, IsNull) {
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chre::SharedPtr<TestBase> ptr;
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EXPECT_TRUE(ptr.isNull());
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}
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TEST_F(SharedPtrTest, IsNotNull) {
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chre::SharedPtr<TestBase> ptr = chre::MakeShared<TestBase>();
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EXPECT_FALSE(ptr.isNull());
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}
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TEST_F(SharedPtrTest, MoveConstructor) {
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chre::SharedPtr<TestBase> ptr = chre::MakeShared<TestBase>();
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chre::SharedPtr<TestBase> movedPtr(std::move(ptr));
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EXPECT_TRUE(ptr.isNull());
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EXPECT_FALSE(movedPtr.isNull());
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}
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TEST_F(SharedPtrTest, CopyConstructor) {
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chre::SharedPtr<TestBase> ptr = chre::MakeShared<TestBase>();
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chre::SharedPtr<TestBase> copiedPtr(ptr);
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EXPECT_FALSE(ptr.isNull());
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EXPECT_FALSE(copiedPtr.isNull());
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}
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TEST_F(SharedPtrTest, MoveAssignment) {
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chre::SharedPtr<TestBase> ptr = chre::MakeShared<TestBase>();
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chre::SharedPtr<TestBase> movedPtr = std::move(ptr);
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EXPECT_TRUE(ptr.isNull());
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EXPECT_FALSE(movedPtr.isNull());
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}
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TEST_F(SharedPtrTest, CopiedAssignment) {
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chre::SharedPtr<TestBase> ptr = chre::MakeShared<TestBase>();
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chre::SharedPtr<TestBase> copiedPtr = ptr;
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EXPECT_FALSE(ptr.isNull());
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EXPECT_FALSE(copiedPtr.isNull());
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}
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TEST_F(SharedPtrTest, Get) {
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int specialVal = 0xdeadbeef;
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chre::SharedPtr<TestBase> ptr = chre::MakeShared<TestBase>(specialVal);
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EXPECT_EQ(specialVal, ptr.get()->value);
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}
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TEST_F(SharedPtrTest, Reset) {
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chre::SharedPtr<TestBase> ptr = chre::MakeShared<TestBase>();
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chre::SharedPtr<TestBase> ptr2 = chre::MakeShared<TestBase>();
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EXPECT_NE(ptr, ptr2);
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ptr2.reset(ptr.get());
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EXPECT_EQ(ptr, ptr2);
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ptr.reset();
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EXPECT_TRUE(ptr.isNull());
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}
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TEST_F(SharedPtrTest, MemoryReleased) {
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chre::SharedPtr<TestBase> ptr = chre::MakeShared<TestBase>();
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chre::SharedPtr<TestBase> copiedPtr = ptr;
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ptr.~SharedPtr();
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EXPECT_EQ(0, TestBase::destructorCount);
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copiedPtr.~SharedPtr();
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EXPECT_EQ(1, TestBase::destructorCount);
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}
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TEST_F(SharedPtrTest, MakeSharedZeroFill) {
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BigArray baseline = {};
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auto myArray = chre::MakeSharedZeroFill<BigArray>();
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ASSERT_FALSE(myArray.isNull());
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// Note that this doesn't actually test things properly, because we don't
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// guarantee that malloc is not already giving us zeroed out memory. To
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// properly do it, we could inject the allocator, but this function is simple
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// enough that it's not really worth the effort.
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EXPECT_EQ(std::memcmp(baseline.x, myArray.get()->x, sizeof(baseline.x)), 0);
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}
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