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// Copyright 2015 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/containers/scoped_ptr_hash_map.h"
#include "base/memory/scoped_ptr.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace base {
namespace {
struct DeleteCounter {
public:
DeleteCounter() {}
~DeleteCounter() { g_delete_count++; }
static void ResetCounter() { g_delete_count = 0; }
static int delete_count() { return g_delete_count; }
private:
static int g_delete_count;
};
int DeleteCounter::g_delete_count = 0;
struct CountingDeleter {
public:
inline void operator()(DeleteCounter* ptr) const {
g_deleter_call_count++;
delete ptr;
}
static int count() { return g_deleter_call_count; }
static void ResetCounter() { g_deleter_call_count = 0; }
private:
static int g_deleter_call_count;
};
int CountingDeleter::g_deleter_call_count = 0;
TEST(ScopedPtrHashMapTest, CustomDeleter) {
int key = 123;
// Test dtor.
DeleteCounter::ResetCounter();
CountingDeleter::ResetCounter();
{
ScopedPtrHashMap<int, scoped_ptr<DeleteCounter, CountingDeleter>> map;
map.set(key, scoped_ptr<DeleteCounter, CountingDeleter>(new DeleteCounter));
}
EXPECT_EQ(1, DeleteCounter::delete_count());
EXPECT_EQ(1, CountingDeleter::count());
// Test set and erase.
DeleteCounter::ResetCounter();
CountingDeleter::ResetCounter();
{
ScopedPtrHashMap<int, scoped_ptr<DeleteCounter, CountingDeleter>> map;
map.erase(map.set(
key, scoped_ptr<DeleteCounter, CountingDeleter>(new DeleteCounter)));
EXPECT_EQ(1, DeleteCounter::delete_count());
EXPECT_EQ(1, CountingDeleter::count());
}
EXPECT_EQ(1, DeleteCounter::delete_count());
EXPECT_EQ(1, CountingDeleter::count());
// Test set more than once.
DeleteCounter::ResetCounter();
CountingDeleter::ResetCounter();
{
ScopedPtrHashMap<int, scoped_ptr<DeleteCounter, CountingDeleter>> map;
map.set(key, scoped_ptr<DeleteCounter, CountingDeleter>(new DeleteCounter));
map.set(key, scoped_ptr<DeleteCounter, CountingDeleter>(new DeleteCounter));
map.set(key, scoped_ptr<DeleteCounter, CountingDeleter>(new DeleteCounter));
EXPECT_EQ(2, DeleteCounter::delete_count());
EXPECT_EQ(2, CountingDeleter::count());
}
EXPECT_EQ(3, DeleteCounter::delete_count());
EXPECT_EQ(3, CountingDeleter::count());
}
} // namespace
} // namespace base
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