You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
116 lines
2.9 KiB
116 lines
2.9 KiB
// Copyright (c) 2011 The Chromium Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#include "base/debug/leak_tracker.h"
|
|
|
|
#include <memory>
|
|
|
|
#include "testing/gtest/include/gtest/gtest.h"
|
|
|
|
namespace base {
|
|
namespace debug {
|
|
|
|
namespace {
|
|
|
|
class ClassA {
|
|
private:
|
|
LeakTracker<ClassA> leak_tracker_;
|
|
};
|
|
|
|
class ClassB {
|
|
private:
|
|
LeakTracker<ClassB> leak_tracker_;
|
|
};
|
|
|
|
#ifndef ENABLE_LEAK_TRACKER
|
|
|
|
// If leak tracking is disabled, we should do nothing.
|
|
TEST(LeakTrackerTest, NotEnabled) {
|
|
EXPECT_EQ(-1, LeakTracker<ClassA>::NumLiveInstances());
|
|
EXPECT_EQ(-1, LeakTracker<ClassB>::NumLiveInstances());
|
|
|
|
// Use unique_ptr so compiler doesn't complain about unused variables.
|
|
std::unique_ptr<ClassA> a1(new ClassA);
|
|
std::unique_ptr<ClassB> b1(new ClassB);
|
|
std::unique_ptr<ClassB> b2(new ClassB);
|
|
|
|
EXPECT_EQ(-1, LeakTracker<ClassA>::NumLiveInstances());
|
|
EXPECT_EQ(-1, LeakTracker<ClassB>::NumLiveInstances());
|
|
}
|
|
|
|
#else
|
|
|
|
TEST(LeakTrackerTest, Basic) {
|
|
{
|
|
ClassA a1;
|
|
|
|
EXPECT_EQ(1, LeakTracker<ClassA>::NumLiveInstances());
|
|
EXPECT_EQ(0, LeakTracker<ClassB>::NumLiveInstances());
|
|
|
|
ClassB b1;
|
|
ClassB b2;
|
|
|
|
EXPECT_EQ(1, LeakTracker<ClassA>::NumLiveInstances());
|
|
EXPECT_EQ(2, LeakTracker<ClassB>::NumLiveInstances());
|
|
|
|
std::unique_ptr<ClassA> a2(new ClassA);
|
|
|
|
EXPECT_EQ(2, LeakTracker<ClassA>::NumLiveInstances());
|
|
EXPECT_EQ(2, LeakTracker<ClassB>::NumLiveInstances());
|
|
|
|
a2.reset();
|
|
|
|
EXPECT_EQ(1, LeakTracker<ClassA>::NumLiveInstances());
|
|
EXPECT_EQ(2, LeakTracker<ClassB>::NumLiveInstances());
|
|
}
|
|
|
|
EXPECT_EQ(0, LeakTracker<ClassA>::NumLiveInstances());
|
|
EXPECT_EQ(0, LeakTracker<ClassB>::NumLiveInstances());
|
|
}
|
|
|
|
// Try some orderings of create/remove to hit different cases in the linked-list
|
|
// assembly.
|
|
TEST(LeakTrackerTest, LinkedList) {
|
|
EXPECT_EQ(0, LeakTracker<ClassB>::NumLiveInstances());
|
|
|
|
std::unique_ptr<ClassA> a1(new ClassA);
|
|
std::unique_ptr<ClassA> a2(new ClassA);
|
|
std::unique_ptr<ClassA> a3(new ClassA);
|
|
std::unique_ptr<ClassA> a4(new ClassA);
|
|
|
|
EXPECT_EQ(4, LeakTracker<ClassA>::NumLiveInstances());
|
|
|
|
// Remove the head of the list (a1).
|
|
a1.reset();
|
|
EXPECT_EQ(3, LeakTracker<ClassA>::NumLiveInstances());
|
|
|
|
// Remove the tail of the list (a4).
|
|
a4.reset();
|
|
EXPECT_EQ(2, LeakTracker<ClassA>::NumLiveInstances());
|
|
|
|
// Append to the new tail of the list (a3).
|
|
std::unique_ptr<ClassA> a5(new ClassA);
|
|
EXPECT_EQ(3, LeakTracker<ClassA>::NumLiveInstances());
|
|
|
|
a2.reset();
|
|
a3.reset();
|
|
|
|
EXPECT_EQ(1, LeakTracker<ClassA>::NumLiveInstances());
|
|
|
|
a5.reset();
|
|
EXPECT_EQ(0, LeakTracker<ClassA>::NumLiveInstances());
|
|
}
|
|
|
|
TEST(LeakTrackerTest, NoOpCheckForLeaks) {
|
|
// There are no live instances of ClassA, so this should do nothing.
|
|
LeakTracker<ClassA>::CheckForLeaks();
|
|
}
|
|
|
|
#endif // ENABLE_LEAK_TRACKER
|
|
|
|
} // namespace
|
|
|
|
} // namespace debug
|
|
} // namespace base
|