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.
138 lines
4.4 KiB
138 lines
4.4 KiB
/*
|
|
* Copyright (C) 2017 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 <stdint.h>
|
|
#include <string.h>
|
|
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
#include <gtest/gtest.h>
|
|
|
|
#include <unwindstack/Memory.h>
|
|
|
|
#include "MemoryFake.h"
|
|
|
|
namespace unwindstack {
|
|
|
|
TEST(MemoryTest, read32) {
|
|
MemoryFakeAlwaysReadZero memory;
|
|
|
|
uint32_t data = 0xffffffff;
|
|
ASSERT_TRUE(memory.Read32(0, &data));
|
|
ASSERT_EQ(0U, data);
|
|
}
|
|
|
|
TEST(MemoryTest, read64) {
|
|
MemoryFakeAlwaysReadZero memory;
|
|
|
|
uint64_t data = 0xffffffffffffffffULL;
|
|
ASSERT_TRUE(memory.Read64(0, &data));
|
|
ASSERT_EQ(0U, data);
|
|
}
|
|
|
|
struct FakeStruct {
|
|
int one;
|
|
bool two;
|
|
uint32_t three;
|
|
uint64_t four;
|
|
};
|
|
|
|
TEST(MemoryTest, read_string) {
|
|
std::string name("string_in_memory");
|
|
|
|
MemoryFake memory;
|
|
|
|
memory.SetMemory(100, name.c_str(), name.size() + 1);
|
|
|
|
std::string dst_name;
|
|
ASSERT_TRUE(memory.ReadString(100, &dst_name, 100));
|
|
ASSERT_EQ("string_in_memory", dst_name);
|
|
|
|
ASSERT_TRUE(memory.ReadString(107, &dst_name, 100));
|
|
ASSERT_EQ("in_memory", dst_name);
|
|
|
|
// Set size greater than string.
|
|
ASSERT_TRUE(memory.ReadString(107, &dst_name, 10));
|
|
ASSERT_EQ("in_memory", dst_name);
|
|
|
|
ASSERT_FALSE(memory.ReadString(107, &dst_name, 9));
|
|
}
|
|
|
|
TEST(MemoryTest, read_string_error) {
|
|
std::string name("short");
|
|
|
|
MemoryFake memory;
|
|
|
|
// Save everything except the terminating '\0'.
|
|
memory.SetMemory(0, name.c_str(), name.size());
|
|
|
|
std::string dst_name;
|
|
// Read from a non-existant address.
|
|
ASSERT_FALSE(memory.ReadString(100, &dst_name, 100));
|
|
|
|
// This should fail because there is no terminating '\0'.
|
|
ASSERT_FALSE(memory.ReadString(0, &dst_name, 100));
|
|
|
|
// This should pass because there is a terminating '\0'.
|
|
memory.SetData8(name.size(), '\0');
|
|
ASSERT_TRUE(memory.ReadString(0, &dst_name, 100));
|
|
ASSERT_EQ("short", dst_name);
|
|
}
|
|
|
|
TEST(MemoryTest, read_string_long) {
|
|
// This string should be greater than 768 characters long (greater than 3 times
|
|
// the buffer in the ReadString function) to read multiple blocks.
|
|
static constexpr char kLongString[] =
|
|
"one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen "
|
|
"sixteen seventeen eightteen nineteen twenty twenty-one twenty-two twenty-three twenty-four "
|
|
"twenty-five twenty-six twenty-seven twenty-eight twenty-nine thirty thirty-one thirty-two "
|
|
"thirty-three thirty-four thirty-five thirty-six thirty-seven thirty-eight thirty-nine forty "
|
|
"forty-one forty-two forty-three forty-four forty-five forty-size forty-seven forty-eight "
|
|
"forty-nine fifty fifty-one fifty-two fifty-three fifty-four fifty-five fifty-six "
|
|
"fifty-seven fifty-eight fifty-nine sixty sixty-one sixty-two sixty-three sixty-four "
|
|
"sixty-five sixty-six sixty-seven sixty-eight sixty-nine seventy seventy-one seventy-two "
|
|
"seventy-three seventy-four seventy-five seventy-six seventy-seven seventy-eight "
|
|
"seventy-nine eighty";
|
|
|
|
MemoryFake memory;
|
|
|
|
memory.SetMemory(100, kLongString, sizeof(kLongString));
|
|
|
|
std::string dst_name;
|
|
ASSERT_TRUE(memory.ReadString(100, &dst_name, sizeof(kLongString)));
|
|
ASSERT_EQ(kLongString, dst_name);
|
|
|
|
std::string expected_str(kLongString, 255);
|
|
memory.SetMemory(100, expected_str.data(), expected_str.length() + 1);
|
|
ASSERT_TRUE(memory.ReadString(100, &dst_name, 256));
|
|
ASSERT_EQ(expected_str, dst_name);
|
|
ASSERT_FALSE(memory.ReadString(100, &dst_name, 255));
|
|
|
|
expected_str = std::string(kLongString, 256);
|
|
memory.SetMemory(100, expected_str.data(), expected_str.length() + 1);
|
|
ASSERT_TRUE(memory.ReadString(100, &dst_name, 257));
|
|
ASSERT_EQ(expected_str, dst_name);
|
|
ASSERT_FALSE(memory.ReadString(100, &dst_name, 256));
|
|
|
|
expected_str = std::string(kLongString, 299);
|
|
memory.SetMemory(100, expected_str.data(), expected_str.length() + 1);
|
|
ASSERT_TRUE(memory.ReadString(100, &dst_name, 300));
|
|
ASSERT_EQ(expected_str, dst_name);
|
|
}
|
|
|
|
} // namespace unwindstack
|