100 lines
3.0 KiB
C++
100 lines
3.0 KiB
C++
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//===- unittest/ADT/IntrusiveRefCntPtrTest.cpp ----------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ADT/IntrusiveRefCntPtr.h"
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#include "gtest/gtest.h"
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namespace llvm {
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namespace {
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int NumInstances = 0;
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template <template <typename> class Base>
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struct SimpleRefCounted : Base<SimpleRefCounted<Base>> {
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SimpleRefCounted() { ++NumInstances; }
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SimpleRefCounted(const SimpleRefCounted &RHS) : Base<SimpleRefCounted>(RHS) {
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++NumInstances;
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}
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~SimpleRefCounted() { --NumInstances; }
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};
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} // anonymous namespace
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template <typename T> struct IntrusiveRefCntPtrTest : testing::Test {};
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typedef ::testing::Types<SimpleRefCounted<RefCountedBase>,
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SimpleRefCounted<ThreadSafeRefCountedBase>>
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IntrusiveRefCntTypes;
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TYPED_TEST_CASE(IntrusiveRefCntPtrTest, IntrusiveRefCntTypes);
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TYPED_TEST(IntrusiveRefCntPtrTest, RefCountedBaseCopyDoesNotLeak) {
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EXPECT_EQ(0, NumInstances);
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{
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TypeParam *S1 = new TypeParam;
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IntrusiveRefCntPtr<TypeParam> R1 = S1;
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TypeParam *S2 = new TypeParam(*S1);
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IntrusiveRefCntPtr<TypeParam> R2 = S2;
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EXPECT_EQ(2, NumInstances);
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}
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EXPECT_EQ(0, NumInstances);
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}
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TYPED_TEST(IntrusiveRefCntPtrTest, InteropsWithUniquePtr) {
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EXPECT_EQ(0, NumInstances);
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{
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auto S1 = std::make_unique<TypeParam>();
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IntrusiveRefCntPtr<TypeParam> R1 = std::move(S1);
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EXPECT_EQ(1, NumInstances);
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EXPECT_EQ(S1, nullptr);
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}
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EXPECT_EQ(0, NumInstances);
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}
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TYPED_TEST(IntrusiveRefCntPtrTest, MakeIntrusiveRefCnt) {
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EXPECT_EQ(0, NumInstances);
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{
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auto S1 = makeIntrusiveRefCnt<TypeParam>();
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auto S2 = makeIntrusiveRefCnt<const TypeParam>();
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EXPECT_EQ(2, NumInstances);
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static_assert(
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std::is_same<decltype(S1), IntrusiveRefCntPtr<TypeParam>>::value,
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"Non-const type mismatch");
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static_assert(
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std::is_same<decltype(S2), IntrusiveRefCntPtr<const TypeParam>>::value,
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"Const type mismatch");
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}
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EXPECT_EQ(0, NumInstances);
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}
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struct InterceptRefCounted : public RefCountedBase<InterceptRefCounted> {
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InterceptRefCounted(bool *Released, bool *Retained)
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: Released(Released), Retained(Retained) {}
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bool * const Released;
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bool * const Retained;
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};
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template <> struct IntrusiveRefCntPtrInfo<InterceptRefCounted> {
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static void retain(InterceptRefCounted *I) {
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*I->Retained = true;
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I->Retain();
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}
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static void release(InterceptRefCounted *I) {
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*I->Released = true;
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I->Release();
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}
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};
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TEST(IntrusiveRefCntPtr, UsesTraitsToRetainAndRelease) {
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bool Released = false;
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bool Retained = false;
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{
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InterceptRefCounted *I = new InterceptRefCounted(&Released, &Retained);
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IntrusiveRefCntPtr<InterceptRefCounted> R = I;
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}
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EXPECT_TRUE(Released);
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EXPECT_TRUE(Retained);
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}
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} // end namespace llvm
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