From fd18fcb111a2ace105b1fbc23ef45fb08ea98ff0 Mon Sep 17 00:00:00 2001 From: Chandler Carruth Date: Sun, 2 Mar 2014 03:26:39 +0000 Subject: [C++11] Add unit tests for OwningPtr in preparation for changes to make it interoperate (minimally) with std::unique_ptr. This is part of my plan to migrate LLVM to use std::unique_ptr with a minimal impact on out-of-tree code. Patch by Ahmed Charles with some minor cleanups (and bool casts) by me. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202608 91177308-0d34-0410-b5e6-96231b3b80d8 --- unittests/ADT/CMakeLists.txt | 1 + unittests/ADT/OwningPtrTest.cpp | 177 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 178 insertions(+) create mode 100644 unittests/ADT/OwningPtrTest.cpp (limited to 'unittests') diff --git a/unittests/ADT/CMakeLists.txt b/unittests/ADT/CMakeLists.txt index 183aa6aabf..b7d006ac66 100644 --- a/unittests/ADT/CMakeLists.txt +++ b/unittests/ADT/CMakeLists.txt @@ -21,6 +21,7 @@ set(ADTSources IntrusiveRefCntPtrTest.cpp MapVectorTest.cpp OptionalTest.cpp + OwningPtrTest.cpp PackedVectorTest.cpp PointerUnionTest.cpp SCCIteratorTest.cpp diff --git a/unittests/ADT/OwningPtrTest.cpp b/unittests/ADT/OwningPtrTest.cpp new file mode 100644 index 0000000000..75db2ba20b --- /dev/null +++ b/unittests/ADT/OwningPtrTest.cpp @@ -0,0 +1,177 @@ +//===- llvm/unittest/ADT/OwningPtrTest.cpp - OwningPtr unit tests -----------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "llvm/ADT/OwningPtr.h" +#include "gtest/gtest.h" +using namespace llvm; + +namespace { + +struct TrackDestructor { + static unsigned Destructions; + int val; + explicit TrackDestructor(int val) : val(val) {} + ~TrackDestructor() { ++Destructions; } + static void ResetCounts() { Destructions = 0; } + +private: + TrackDestructor(const TrackDestructor &other) LLVM_DELETED_FUNCTION; + TrackDestructor & + operator=(const TrackDestructor &other) LLVM_DELETED_FUNCTION; + TrackDestructor(TrackDestructor &&other) LLVM_DELETED_FUNCTION; + TrackDestructor &operator=(TrackDestructor &&other) LLVM_DELETED_FUNCTION; +}; + +unsigned TrackDestructor::Destructions = 0; + +// Test fixture +class OwningPtrTest : public testing::Test {}; + +TEST_F(OwningPtrTest, DefaultConstruction) { + TrackDestructor::ResetCounts(); + { + OwningPtr O; + EXPECT_FALSE(O); + EXPECT_TRUE(!O); + EXPECT_FALSE(O.get()); + EXPECT_FALSE(O.isValid()); + } + EXPECT_EQ(0u, TrackDestructor::Destructions); +} + +TEST_F(OwningPtrTest, PtrConstruction) { + TrackDestructor::ResetCounts(); + { + OwningPtr O(new TrackDestructor(3)); + EXPECT_TRUE((bool)O); + EXPECT_FALSE(!O); + EXPECT_TRUE(O.get()); + EXPECT_TRUE(O.isValid()); + EXPECT_EQ(3, (*O).val); + EXPECT_EQ(3, O->val); + EXPECT_EQ(0u, TrackDestructor::Destructions); + } + EXPECT_EQ(1u, TrackDestructor::Destructions); +} + +TEST_F(OwningPtrTest, Reset) { + TrackDestructor::ResetCounts(); + OwningPtr O(new TrackDestructor(3)); + EXPECT_EQ(0u, TrackDestructor::Destructions); + O.reset(); + EXPECT_FALSE((bool)O); + EXPECT_TRUE(!O); + EXPECT_FALSE(O.get()); + EXPECT_FALSE(O.isValid()); + EXPECT_EQ(1u, TrackDestructor::Destructions); +} + +TEST_F(OwningPtrTest, Take) { + TrackDestructor::ResetCounts(); + TrackDestructor *T = 0; + { + OwningPtr O(new TrackDestructor(3)); + T = O.take(); + EXPECT_FALSE((bool)O); + EXPECT_TRUE(!O); + EXPECT_FALSE(O.get()); + EXPECT_FALSE(O.isValid()); + EXPECT_TRUE(T); + EXPECT_EQ(3, T->val); + EXPECT_EQ(0u, TrackDestructor::Destructions); + } + delete T; + EXPECT_EQ(1u, TrackDestructor::Destructions); +} + +TEST_F(OwningPtrTest, MoveConstruction) { + TrackDestructor::ResetCounts(); + { + OwningPtr A(new TrackDestructor(3)); + OwningPtr B = std::move(A); + EXPECT_FALSE((bool)A); + EXPECT_TRUE(!A); + EXPECT_FALSE(A.get()); + EXPECT_FALSE(A.isValid()); + EXPECT_TRUE((bool)B); + EXPECT_FALSE(!B); + EXPECT_TRUE(B.get()); + EXPECT_TRUE(B.isValid()); + EXPECT_EQ(3, (*B).val); + EXPECT_EQ(3, B->val); + EXPECT_EQ(0u, TrackDestructor::Destructions); + } + EXPECT_EQ(1u, TrackDestructor::Destructions); +} + +TEST_F(OwningPtrTest, MoveAssignment) { + TrackDestructor::ResetCounts(); + { + OwningPtr A(new TrackDestructor(3)); + OwningPtr B(new TrackDestructor(4)); + B = std::move(A); + EXPECT_FALSE(A); + EXPECT_TRUE(!A); + EXPECT_FALSE(A.get()); + EXPECT_FALSE(A.isValid()); + EXPECT_TRUE((bool)B); + EXPECT_FALSE(!B); + EXPECT_TRUE(B.get()); + EXPECT_TRUE(B.isValid()); + EXPECT_EQ(3, (*B).val); + EXPECT_EQ(3, B->val); + EXPECT_EQ(1u, TrackDestructor::Destructions); + } + EXPECT_EQ(2u, TrackDestructor::Destructions); +} + +TEST_F(OwningPtrTest, Swap) { + TrackDestructor::ResetCounts(); + { + OwningPtr A(new TrackDestructor(3)); + OwningPtr B(new TrackDestructor(4)); + B.swap(A); + EXPECT_TRUE((bool)A); + EXPECT_FALSE(!A); + EXPECT_TRUE(A.get()); + EXPECT_TRUE(A.isValid()); + EXPECT_EQ(4, (*A).val); + EXPECT_EQ(4, A->val); + EXPECT_TRUE((bool)B); + EXPECT_FALSE(!B); + EXPECT_TRUE(B.get()); + EXPECT_TRUE(B.isValid()); + EXPECT_EQ(3, (*B).val); + EXPECT_EQ(3, B->val); + EXPECT_EQ(0u, TrackDestructor::Destructions); + } + EXPECT_EQ(2u, TrackDestructor::Destructions); + TrackDestructor::ResetCounts(); + { + OwningPtr A(new TrackDestructor(3)); + OwningPtr B(new TrackDestructor(4)); + swap(A, B); + EXPECT_TRUE((bool)A); + EXPECT_FALSE(!A); + EXPECT_TRUE(A.get()); + EXPECT_TRUE(A.isValid()); + EXPECT_EQ(4, (*A).val); + EXPECT_EQ(4, A->val); + EXPECT_TRUE((bool)B); + EXPECT_FALSE(!B); + EXPECT_TRUE(B.get()); + EXPECT_TRUE(B.isValid()); + EXPECT_EQ(3, (*B).val); + EXPECT_EQ(3, B->val); + EXPECT_EQ(0u, TrackDestructor::Destructions); + } + EXPECT_EQ(2u, TrackDestructor::Destructions); +} + +} -- cgit v1.2.3