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130 lines
3.4 KiB
130 lines
3.4 KiB
/* |
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* Copyright (C) 2017 The Android Open Source Project |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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#include <stdint.h> |
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#include <string.h> |
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#include <string> |
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#include <vector> |
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#include <gtest/gtest.h> |
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#include <unwindstack/Memory.h> |
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#include "MemoryFake.h" |
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namespace unwindstack { |
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TEST(MemoryTest, read32) { |
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MemoryFakeAlwaysReadZero memory; |
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uint32_t data = 0xffffffff; |
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ASSERT_TRUE(memory.Read32(0, &data)); |
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ASSERT_EQ(0U, data); |
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} |
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TEST(MemoryTest, read64) { |
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MemoryFakeAlwaysReadZero memory; |
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uint64_t data = 0xffffffffffffffffULL; |
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ASSERT_TRUE(memory.Read64(0, &data)); |
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ASSERT_EQ(0U, data); |
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} |
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struct FakeStruct { |
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int one; |
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bool two; |
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uint32_t three; |
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uint64_t four; |
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}; |
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TEST(MemoryTest, read_field) { |
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MemoryFakeAlwaysReadZero memory; |
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FakeStruct data; |
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memset(&data, 0xff, sizeof(data)); |
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ASSERT_TRUE(memory.ReadField(0, &data, &data.one, sizeof(data.one))); |
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ASSERT_EQ(0, data.one); |
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memset(&data, 0xff, sizeof(data)); |
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ASSERT_TRUE(memory.ReadField(0, &data, &data.two, sizeof(data.two))); |
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ASSERT_FALSE(data.two); |
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memset(&data, 0xff, sizeof(data)); |
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ASSERT_TRUE(memory.ReadField(0, &data, &data.three, sizeof(data.three))); |
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ASSERT_EQ(0U, data.three); |
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memset(&data, 0xff, sizeof(data)); |
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ASSERT_TRUE(memory.ReadField(0, &data, &data.four, sizeof(data.four))); |
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ASSERT_EQ(0U, data.four); |
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} |
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TEST(MemoryTest, read_field_fails) { |
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MemoryFakeAlwaysReadZero memory; |
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FakeStruct data; |
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memset(&data, 0xff, sizeof(data)); |
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ASSERT_FALSE(memory.ReadField(UINT64_MAX, &data, &data.three, sizeof(data.three))); |
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// Field and start reversed, should fail. |
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ASSERT_FALSE(memory.ReadField(100, &data.two, &data, sizeof(data.two))); |
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ASSERT_FALSE(memory.ReadField(0, &data.two, &data, sizeof(data.two))); |
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} |
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TEST(MemoryTest, read_string) { |
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std::string name("string_in_memory"); |
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MemoryFake memory; |
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memory.SetMemory(100, name.c_str(), name.size() + 1); |
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std::string dst_name; |
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ASSERT_TRUE(memory.ReadString(100, &dst_name)); |
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ASSERT_EQ("string_in_memory", dst_name); |
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ASSERT_TRUE(memory.ReadString(107, &dst_name)); |
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ASSERT_EQ("in_memory", dst_name); |
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// Set size greater than string. |
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ASSERT_TRUE(memory.ReadString(107, &dst_name, 10)); |
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ASSERT_EQ("in_memory", dst_name); |
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ASSERT_FALSE(memory.ReadString(107, &dst_name, 9)); |
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} |
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TEST(MemoryTest, read_string_error) { |
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std::string name("short"); |
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MemoryFake memory; |
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// Save everything except the terminating '\0'. |
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memory.SetMemory(0, name.c_str(), name.size()); |
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std::string dst_name; |
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// Read from a non-existant address. |
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ASSERT_FALSE(memory.ReadString(100, &dst_name)); |
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// This should fail because there is no terminating '\0'. |
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ASSERT_FALSE(memory.ReadString(0, &dst_name)); |
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// This should pass because there is a terminating '\0'. |
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memory.SetData8(name.size(), '\0'); |
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ASSERT_TRUE(memory.ReadString(0, &dst_name)); |
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ASSERT_EQ("short", dst_name); |
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} |
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} // namespace unwindstack
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