diff options
Diffstat (limited to 'unittests')
| -rw-r--r-- | unittests/ADT/CMakeLists.txt | 1 | ||||
| -rw-r--r-- | unittests/ADT/OptionalTest.cpp | 173 |
2 files changed, 174 insertions, 0 deletions
diff --git a/unittests/ADT/CMakeLists.txt b/unittests/ADT/CMakeLists.txt index 0f39e02c1f..9aad793d8b 100644 --- a/unittests/ADT/CMakeLists.txt +++ b/unittests/ADT/CMakeLists.txt @@ -19,6 +19,7 @@ set(ADTSources IntervalMapTest.cpp IntrusiveRefCntPtrTest.cpp MapVectorTest.cpp + OptionalTest.cpp PackedVectorTest.cpp SCCIteratorTest.cpp SmallPtrSetTest.cpp diff --git a/unittests/ADT/OptionalTest.cpp b/unittests/ADT/OptionalTest.cpp new file mode 100644 index 0000000000..8bdea45c5a --- /dev/null +++ b/unittests/ADT/OptionalTest.cpp @@ -0,0 +1,173 @@ +//===- llvm/unittest/ADT/OptionalTest.cpp - Optional unit tests -----------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "gtest/gtest.h" +#include "llvm/ADT/Optional.h" +using namespace llvm; + +namespace { + +struct NonDefaultConstructible { + static unsigned CopyConstructions; + static unsigned Destructions; + static unsigned CopyAssignments; + explicit NonDefaultConstructible(int) { + } + NonDefaultConstructible(const NonDefaultConstructible&) { + ++CopyConstructions; + } + NonDefaultConstructible &operator=(const NonDefaultConstructible&) { + ++CopyAssignments; + return *this; + } + ~NonDefaultConstructible() { + ++Destructions; + } + static void ResetCounts() { + CopyConstructions = 0; + Destructions = 0; + CopyAssignments = 0; + } +}; + +unsigned NonDefaultConstructible::CopyConstructions = 0; +unsigned NonDefaultConstructible::Destructions = 0; +unsigned NonDefaultConstructible::CopyAssignments = 0; + +// Test fixture +class OptionalTest : public testing::Test { +}; + +TEST_F(OptionalTest, NonDefaultConstructibleTest) { + Optional<NonDefaultConstructible> O; + EXPECT_FALSE(O); +} + +TEST_F(OptionalTest, ResetTest) { + NonDefaultConstructible::ResetCounts(); + Optional<NonDefaultConstructible> O(NonDefaultConstructible(3)); + EXPECT_EQ(1u, NonDefaultConstructible::CopyConstructions); + EXPECT_EQ(0u, NonDefaultConstructible::CopyAssignments); + EXPECT_EQ(1u, NonDefaultConstructible::Destructions); + NonDefaultConstructible::ResetCounts(); + O.Reset(); + EXPECT_EQ(0u, NonDefaultConstructible::CopyConstructions); + EXPECT_EQ(0u, NonDefaultConstructible::CopyAssignments); + EXPECT_EQ(1u, NonDefaultConstructible::Destructions); +} + +TEST_F(OptionalTest, InitializationLeakTest) { + NonDefaultConstructible::ResetCounts(); + Optional<NonDefaultConstructible>(NonDefaultConstructible(3)); + EXPECT_EQ(1u, NonDefaultConstructible::CopyConstructions); + EXPECT_EQ(0u, NonDefaultConstructible::CopyAssignments); + EXPECT_EQ(2u, NonDefaultConstructible::Destructions); +} + +TEST_F(OptionalTest, CopyConstructionTest) { + NonDefaultConstructible::ResetCounts(); + { + Optional<NonDefaultConstructible> A(NonDefaultConstructible(3)); + EXPECT_EQ(1u, NonDefaultConstructible::CopyConstructions); + EXPECT_EQ(0u, NonDefaultConstructible::CopyAssignments); + EXPECT_EQ(1u, NonDefaultConstructible::Destructions); + NonDefaultConstructible::ResetCounts(); + Optional<NonDefaultConstructible> B(A); + EXPECT_EQ(1u, NonDefaultConstructible::CopyConstructions); + EXPECT_EQ(0u, NonDefaultConstructible::CopyAssignments); + EXPECT_EQ(0u, NonDefaultConstructible::Destructions); + NonDefaultConstructible::ResetCounts(); + } + EXPECT_EQ(0u, NonDefaultConstructible::CopyConstructions); + EXPECT_EQ(0u, NonDefaultConstructible::CopyAssignments); + EXPECT_EQ(2u, NonDefaultConstructible::Destructions); +} + +TEST_F(OptionalTest, ConstructingCopyAssignmentTest) { + NonDefaultConstructible::ResetCounts(); + { + Optional<NonDefaultConstructible> A(NonDefaultConstructible(3)); + Optional<NonDefaultConstructible> B; + EXPECT_EQ(1u, NonDefaultConstructible::CopyConstructions); + EXPECT_EQ(0u, NonDefaultConstructible::CopyAssignments); + EXPECT_EQ(1u, NonDefaultConstructible::Destructions); + NonDefaultConstructible::ResetCounts(); + B = A; + EXPECT_EQ(1u, NonDefaultConstructible::CopyConstructions); + EXPECT_EQ(0u, NonDefaultConstructible::CopyAssignments); + EXPECT_EQ(0u, NonDefaultConstructible::Destructions); + NonDefaultConstructible::ResetCounts(); + } + EXPECT_EQ(0u, NonDefaultConstructible::CopyConstructions); + EXPECT_EQ(0u, NonDefaultConstructible::CopyAssignments); + EXPECT_EQ(2u, NonDefaultConstructible::Destructions); +} + +TEST_F(OptionalTest, CopyingCopyAssignmentTest) { + NonDefaultConstructible::ResetCounts(); + { + Optional<NonDefaultConstructible> A(NonDefaultConstructible(3)); + Optional<NonDefaultConstructible> B(NonDefaultConstructible(4)); + EXPECT_EQ(2u, NonDefaultConstructible::CopyConstructions); + EXPECT_EQ(0u, NonDefaultConstructible::CopyAssignments); + EXPECT_EQ(2u, NonDefaultConstructible::Destructions); + NonDefaultConstructible::ResetCounts(); + B = A; + EXPECT_EQ(0u, NonDefaultConstructible::CopyConstructions); + EXPECT_EQ(1u, NonDefaultConstructible::CopyAssignments); + EXPECT_EQ(0u, NonDefaultConstructible::Destructions); + NonDefaultConstructible::ResetCounts(); + } + EXPECT_EQ(0u, NonDefaultConstructible::CopyConstructions); + EXPECT_EQ(0u, NonDefaultConstructible::CopyAssignments); + EXPECT_EQ(2u, NonDefaultConstructible::Destructions); +} + +TEST_F(OptionalTest, DeletingCopyAssignmentTest) { + NonDefaultConstructible::ResetCounts(); + { + Optional<NonDefaultConstructible> A; + Optional<NonDefaultConstructible> B(NonDefaultConstructible(3)); + EXPECT_EQ(1u, NonDefaultConstructible::CopyConstructions); + EXPECT_EQ(0u, NonDefaultConstructible::CopyAssignments); + EXPECT_EQ(1u, NonDefaultConstructible::Destructions); + NonDefaultConstructible::ResetCounts(); + B = A; + EXPECT_EQ(0u, NonDefaultConstructible::CopyConstructions); + EXPECT_EQ(0u, NonDefaultConstructible::CopyAssignments); + EXPECT_EQ(1u, NonDefaultConstructible::Destructions); + NonDefaultConstructible::ResetCounts(); + } + EXPECT_EQ(0u, NonDefaultConstructible::CopyConstructions); + EXPECT_EQ(0u, NonDefaultConstructible::CopyAssignments); + EXPECT_EQ(0u, NonDefaultConstructible::Destructions); +} + +TEST_F(OptionalTest, NullCopyConstructionTest) { + NonDefaultConstructible::ResetCounts(); + { + Optional<NonDefaultConstructible> A; + Optional<NonDefaultConstructible> B; + EXPECT_EQ(0u, NonDefaultConstructible::CopyConstructions); + EXPECT_EQ(0u, NonDefaultConstructible::CopyAssignments); + EXPECT_EQ(0u, NonDefaultConstructible::Destructions); + NonDefaultConstructible::ResetCounts(); + B = A; + EXPECT_EQ(0u, NonDefaultConstructible::CopyConstructions); + EXPECT_EQ(0u, NonDefaultConstructible::CopyAssignments); + EXPECT_EQ(0u, NonDefaultConstructible::Destructions); + NonDefaultConstructible::ResetCounts(); + } + EXPECT_EQ(0u, NonDefaultConstructible::CopyConstructions); + EXPECT_EQ(0u, NonDefaultConstructible::CopyAssignments); + EXPECT_EQ(0u, NonDefaultConstructible::Destructions); +} + +} // end anonymous namespace + |