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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <gtest/gtest.h>
#include "Pointers.h"
TEST(PointersTest, smoke) {
Pointers pointers(1);
pointers.Add(0x1234, reinterpret_cast<void*>(0xabcd));
void* memory_pointer = pointers.Remove(0x1234);
ASSERT_EQ(reinterpret_cast<void*>(0xabcd), memory_pointer);
}
TEST(PointersTest, readd_pointer) {
Pointers pointers(1);
pointers.Add(0x1234, reinterpret_cast<void*>(0xabcd));
void* memory_pointer = pointers.Remove(0x1234);
ASSERT_EQ(reinterpret_cast<void*>(0xabcd), memory_pointer);
pointers.Add(0x1234, reinterpret_cast<void*>(0x5555));
memory_pointer = pointers.Remove(0x1234);
ASSERT_EQ(reinterpret_cast<void*>(0x5555), memory_pointer);
}
TEST(PointersTest, expect_collision) {
Pointers pointers(2);
// This assumes the simple hash being used will result in a collision
// hitting the same entry.
pointers.Add(0x1234, reinterpret_cast<void*>(0xabcd));
pointers.Add(0x11234, reinterpret_cast<void*>(0xabcf));
void* memory_pointer = pointers.Remove(0x11234);
ASSERT_EQ(reinterpret_cast<void*>(0xabcf), memory_pointer);
memory_pointer = pointers.Remove(0x1234);
ASSERT_EQ(reinterpret_cast<void*>(0xabcd), memory_pointer);
}
TEST(PointersTest, multiple_add_removes) {
Pointers pointers(4);
pointers.Add(0x1234, reinterpret_cast<void*>(0xabcd));
pointers.Add(0x1235, reinterpret_cast<void*>(0xabcf));
pointers.Add(0x1236, reinterpret_cast<void*>(0xabc1));
pointers.Add(0x1237, reinterpret_cast<void*>(0xabc2));
void* memory_pointer = pointers.Remove(0x1236);
ASSERT_EQ(reinterpret_cast<void*>(0xabc1), memory_pointer);
pointers.Add(0x2349, reinterpret_cast<void*>(0x2abcd));
memory_pointer = pointers.Remove(0x1234);
ASSERT_EQ(reinterpret_cast<void*>(0xabcd), memory_pointer);
memory_pointer = pointers.Remove(0x1237);
ASSERT_EQ(reinterpret_cast<void*>(0xabc2), memory_pointer);
pointers.Add(0x3500, reinterpret_cast<void*>(0x3abcd));
memory_pointer = pointers.Remove(0x3500);
ASSERT_EQ(reinterpret_cast<void*>(0x3abcd), memory_pointer);
memory_pointer = pointers.Remove(0x2349);
ASSERT_EQ(reinterpret_cast<void*>(0x2abcd), memory_pointer);
}
static void TestNoEntriesLeft() {
Pointers pointers(1);
// Even though we've requested only one pointer, we get more due
// to the way the data is allocated.
for (size_t i = 0; i <= pointers.max_pointers(); i++) {
pointers.Add(0x1234 + i, reinterpret_cast<void*>(0xabcd + i));
}
}
TEST(PointersTest_DeathTest, no_entries_left) {
ASSERT_EXIT(TestNoEntriesLeft(), ::testing::ExitedWithCode(1), "");
}
static void TestFindNoPointer() {
Pointers pointers(1);
pointers.Remove(0x1234);
}
TEST(PointersTest_DeathTest, find_no_pointer) {
ASSERT_EXIT(TestFindNoPointer(), ::testing::ExitedWithCode(1), "");
}
static void TestRemoveZeroValue() {
Pointers pointers(1);
void* memory = pointers.Remove(0);
if (memory) {}
}
TEST(PointersTest_DeathTest, remove_zero_value) {
ASSERT_EXIT(TestRemoveZeroValue(), ::testing::ExitedWithCode(1), "");
}
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