Index: base/memory/ref_counted_unittest.cc |
diff --git a/base/memory/ref_counted_unittest.cc b/base/memory/ref_counted_unittest.cc |
index f75cd38f19c86d530237200e37792a2cde9480eb..f38fc2c6369958468efb8973b8d21fd817231ca2 100644 |
--- a/base/memory/ref_counted_unittest.cc |
+++ b/base/memory/ref_counted_unittest.cc |
@@ -53,6 +53,58 @@ class ScopedRefPtrToSelf : public base::RefCounted<ScopedRefPtrToSelf> { |
bool ScopedRefPtrToSelf::was_destroyed_ = false; |
+class ScopedRefPtrCountBase : public base::RefCounted<ScopedRefPtrCountBase> { |
+ public: |
+ ScopedRefPtrCountBase() { ++constructor_count_; } |
+ |
+ static int constructor_count() { return constructor_count_; } |
+ |
+ static int destructor_count() { return destructor_count_; } |
+ |
+ static void reset_count() { |
+ constructor_count_ = 0; |
+ destructor_count_ = 0; |
+ } |
+ |
+ protected: |
+ virtual ~ScopedRefPtrCountBase() { ++destructor_count_; } |
+ |
+ private: |
+ friend class base::RefCounted<ScopedRefPtrCountBase>; |
+ |
+ static int constructor_count_; |
+ static int destructor_count_; |
+}; |
+ |
+int ScopedRefPtrCountBase::constructor_count_ = 0; |
+int ScopedRefPtrCountBase::destructor_count_ = 0; |
+ |
+class ScopedRefPtrCountDerived : public ScopedRefPtrCountBase { |
+ public: |
+ ScopedRefPtrCountDerived() { ++constructor_count_; } |
+ |
+ static int constructor_count() { return constructor_count_; } |
+ |
+ static int destructor_count() { return destructor_count_; } |
+ |
+ static void reset_count() { |
+ constructor_count_ = 0; |
+ destructor_count_ = 0; |
+ } |
+ |
+ protected: |
+ virtual ~ScopedRefPtrCountDerived() override { ++destructor_count_; } |
+ |
+ private: |
+ friend class base::RefCounted<ScopedRefPtrCountDerived>; |
+ |
+ static int constructor_count_; |
+ static int destructor_count_; |
+}; |
+ |
+int ScopedRefPtrCountDerived::constructor_count_ = 0; |
+int ScopedRefPtrCountDerived::destructor_count_ = 0; |
+ |
} // end namespace |
TEST(RefCountedUnitTest, TestSelfAssignment) { |
@@ -113,3 +165,284 @@ TEST(RefCountedUnitTest, ConvertibleEquality) { |
EXPECT_EQ(p1, p2); |
EXPECT_EQ(p2, p1); |
} |
+ |
+TEST(RefCountedUnitTest, SelfMoveAssignment) { |
+ ScopedRefPtrCountBase::reset_count(); |
+ |
+ { |
+ ScopedRefPtrCountBase *raw = new ScopedRefPtrCountBase(); |
+ scoped_refptr<ScopedRefPtrCountBase> p(raw); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(0, ScopedRefPtrCountBase::destructor_count()); |
+ |
+ p = p.Pass(); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(0, ScopedRefPtrCountBase::destructor_count()); |
+ EXPECT_EQ(raw, p.get()); |
+ |
+ // p goes out of scope. |
+ } |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::destructor_count()); |
+} |
+ |
+TEST(RefCountedUnitTest, MoveAssignment1) { |
+ ScopedRefPtrCountBase::reset_count(); |
+ |
+ { |
+ ScopedRefPtrCountBase *raw = new ScopedRefPtrCountBase(); |
+ scoped_refptr<ScopedRefPtrCountBase> p1(raw); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(0, ScopedRefPtrCountBase::destructor_count()); |
+ |
+ { |
+ scoped_refptr<ScopedRefPtrCountBase> p2; |
+ |
+ p2 = p1.Pass(); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(0, ScopedRefPtrCountBase::destructor_count()); |
+ EXPECT_EQ(nullptr, p1.get()); |
+ EXPECT_EQ(raw, p2.get()); |
+ |
+ // p2 goes out of scope. |
+ } |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::destructor_count()); |
+ |
+ // p1 goes out of scope. |
+ } |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::destructor_count()); |
+} |
+ |
+TEST(RefCountedUnitTest, MoveAssignment2) { |
+ ScopedRefPtrCountBase::reset_count(); |
+ |
+ { |
+ ScopedRefPtrCountBase *raw = new ScopedRefPtrCountBase(); |
+ scoped_refptr<ScopedRefPtrCountBase> p1; |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(0, ScopedRefPtrCountBase::destructor_count()); |
+ |
+ { |
+ scoped_refptr<ScopedRefPtrCountBase> p2(raw); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(0, ScopedRefPtrCountBase::destructor_count()); |
+ |
+ p1 = p2.Pass(); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(0, ScopedRefPtrCountBase::destructor_count()); |
+ EXPECT_EQ(raw, p1.get()); |
+ EXPECT_EQ(nullptr, p2.get()); |
+ |
+ // p2 goes out of scope. |
+ } |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(0, ScopedRefPtrCountBase::destructor_count()); |
+ |
+ // p1 goes out of scope. |
+ } |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::destructor_count()); |
+} |
+ |
+TEST(RefCountedUnitTest, MoveAssignmentSameInstance1) { |
+ ScopedRefPtrCountBase::reset_count(); |
+ |
+ { |
+ ScopedRefPtrCountBase *raw = new ScopedRefPtrCountBase(); |
+ scoped_refptr<ScopedRefPtrCountBase> p1(raw); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(0, ScopedRefPtrCountBase::destructor_count()); |
+ |
+ { |
+ scoped_refptr<ScopedRefPtrCountBase> p2(p1); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(0, ScopedRefPtrCountBase::destructor_count()); |
+ |
+ p1 = p2.Pass(); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(0, ScopedRefPtrCountBase::destructor_count()); |
+ EXPECT_EQ(raw, p1.get()); |
+ EXPECT_EQ(nullptr, p2.get()); |
+ |
+ // p2 goes out of scope. |
+ } |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(0, ScopedRefPtrCountBase::destructor_count()); |
+ |
+ // p1 goes out of scope. |
+ } |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::destructor_count()); |
+} |
+ |
+TEST(RefCountedUnitTest, MoveAssignmentSameInstance2) { |
+ ScopedRefPtrCountBase::reset_count(); |
+ |
+ { |
+ ScopedRefPtrCountBase *raw = new ScopedRefPtrCountBase(); |
+ scoped_refptr<ScopedRefPtrCountBase> p1(raw); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(0, ScopedRefPtrCountBase::destructor_count()); |
+ |
+ { |
+ scoped_refptr<ScopedRefPtrCountBase> p2(p1); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(0, ScopedRefPtrCountBase::destructor_count()); |
+ |
+ p2 = p1.Pass(); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(0, ScopedRefPtrCountBase::destructor_count()); |
+ EXPECT_EQ(nullptr, p1.get()); |
+ EXPECT_EQ(raw, p2.get()); |
+ |
+ // p2 goes out of scope. |
+ } |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::destructor_count()); |
+ |
+ // p1 goes out of scope. |
+ } |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::destructor_count()); |
+} |
+ |
+TEST(RefCountedUnitTest, MoveAssignmentDifferentInstances) { |
+ ScopedRefPtrCountBase::reset_count(); |
+ |
+ { |
+ ScopedRefPtrCountBase *raw1 = new ScopedRefPtrCountBase(); |
+ scoped_refptr<ScopedRefPtrCountBase> p1(raw1); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(0, ScopedRefPtrCountBase::destructor_count()); |
+ |
+ { |
+ ScopedRefPtrCountBase *raw2 = new ScopedRefPtrCountBase(); |
+ scoped_refptr<ScopedRefPtrCountBase> p2(raw2); |
+ EXPECT_EQ(2, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(0, ScopedRefPtrCountBase::destructor_count()); |
+ |
+ p1 = p2.Pass(); |
+ EXPECT_EQ(2, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::destructor_count()); |
+ EXPECT_EQ(raw2, p1.get()); |
+ EXPECT_EQ(nullptr, p2.get()); |
+ |
+ // p2 goes out of scope. |
+ } |
+ EXPECT_EQ(2, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::destructor_count()); |
+ |
+ // p1 goes out of scope. |
+ } |
+ EXPECT_EQ(2, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(2, ScopedRefPtrCountBase::destructor_count()); |
+} |
+ |
+TEST(RefCountedUnitTest, MoveAssignmentDerived) { |
+ ScopedRefPtrCountBase::reset_count(); |
+ ScopedRefPtrCountDerived::reset_count(); |
+ |
+ { |
+ ScopedRefPtrCountBase *raw1 = new ScopedRefPtrCountBase(); |
+ scoped_refptr<ScopedRefPtrCountBase> p1(raw1); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(0, ScopedRefPtrCountBase::destructor_count()); |
+ EXPECT_EQ(0, ScopedRefPtrCountDerived::constructor_count()); |
+ EXPECT_EQ(0, ScopedRefPtrCountDerived::destructor_count()); |
+ |
+ { |
+ ScopedRefPtrCountDerived *raw2 = new ScopedRefPtrCountDerived(); |
+ scoped_refptr<ScopedRefPtrCountDerived> p2(raw2); |
+ EXPECT_EQ(2, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(0, ScopedRefPtrCountBase::destructor_count()); |
+ EXPECT_EQ(1, ScopedRefPtrCountDerived::constructor_count()); |
+ EXPECT_EQ(0, ScopedRefPtrCountDerived::destructor_count()); |
+ |
+ p1 = p2.Pass(); |
+ EXPECT_EQ(2, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::destructor_count()); |
+ EXPECT_EQ(1, ScopedRefPtrCountDerived::constructor_count()); |
+ EXPECT_EQ(0, ScopedRefPtrCountDerived::destructor_count()); |
+ EXPECT_EQ(raw2, p1.get()); |
+ EXPECT_EQ(nullptr, p2.get()); |
+ |
+ // p2 goes out of scope. |
+ } |
+ EXPECT_EQ(2, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::destructor_count()); |
+ EXPECT_EQ(1, ScopedRefPtrCountDerived::constructor_count()); |
+ EXPECT_EQ(0, ScopedRefPtrCountDerived::destructor_count()); |
+ |
+ // p1 goes out of scope. |
+ } |
+ EXPECT_EQ(2, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(2, ScopedRefPtrCountBase::destructor_count()); |
+ EXPECT_EQ(1, ScopedRefPtrCountDerived::constructor_count()); |
+ EXPECT_EQ(1, ScopedRefPtrCountDerived::destructor_count()); |
+} |
+ |
+TEST(RefCountedUnitTest, MoveConstructor) { |
+ ScopedRefPtrCountBase::reset_count(); |
+ |
+ { |
+ ScopedRefPtrCountBase *raw = new ScopedRefPtrCountBase(); |
+ scoped_refptr<ScopedRefPtrCountBase> p1(raw); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(0, ScopedRefPtrCountBase::destructor_count()); |
+ |
+ { |
+ scoped_refptr<ScopedRefPtrCountBase> p2(p1.Pass()); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(0, ScopedRefPtrCountBase::destructor_count()); |
+ EXPECT_EQ(nullptr, p1.get()); |
+ EXPECT_EQ(raw, p2.get()); |
+ |
+ // p2 goes out of scope. |
+ } |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::destructor_count()); |
+ |
+ // p1 goes out of scope. |
+ } |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::destructor_count()); |
+} |
+ |
+TEST(RefCountedUnitTest, MoveConstructorDerived) { |
+ ScopedRefPtrCountBase::reset_count(); |
+ ScopedRefPtrCountDerived::reset_count(); |
+ |
+ { |
+ ScopedRefPtrCountDerived *raw1 = new ScopedRefPtrCountDerived(); |
+ scoped_refptr<ScopedRefPtrCountDerived> p1(raw1); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(0, ScopedRefPtrCountBase::destructor_count()); |
+ EXPECT_EQ(1, ScopedRefPtrCountDerived::constructor_count()); |
+ EXPECT_EQ(0, ScopedRefPtrCountDerived::destructor_count()); |
+ |
+ { |
+ scoped_refptr<ScopedRefPtrCountBase> p2(p1.Pass()); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(0, ScopedRefPtrCountBase::destructor_count()); |
+ EXPECT_EQ(1, ScopedRefPtrCountDerived::constructor_count()); |
+ EXPECT_EQ(0, ScopedRefPtrCountDerived::destructor_count()); |
+ EXPECT_EQ(nullptr, p1.get()); |
+ EXPECT_EQ(raw1, p2.get()); |
+ |
+ // p2 goes out of scope. |
+ } |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::destructor_count()); |
+ EXPECT_EQ(1, ScopedRefPtrCountDerived::constructor_count()); |
+ EXPECT_EQ(1, ScopedRefPtrCountDerived::destructor_count()); |
+ |
+ // p1 goes out of scope. |
+ } |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count()); |
+ EXPECT_EQ(1, ScopedRefPtrCountBase::destructor_count()); |
+ EXPECT_EQ(1, ScopedRefPtrCountDerived::constructor_count()); |
+ EXPECT_EQ(1, ScopedRefPtrCountDerived::destructor_count()); |
+} |
+ |