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-// Copyright (c) 2011, Google Inc.
-// All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// memory_range_unittest.cc: Unit tests for google_breakpad::MemoryRange.
-
-#include "breakpad_googletest_includes.h"
-#include "common/memory_range.h"
-
-using google_breakpad::MemoryRange;
-using testing::Message;
-
-namespace {
-
-const uint32_t kBuffer[10] = { 0 };
-const size_t kBufferSize = sizeof(kBuffer);
-const uint8_t* kBufferPointer = reinterpret_cast<const uint8_t*>(kBuffer);
-
-// Test vectors for verifying Covers, GetData, and Subrange.
-const struct {
- bool valid;
- size_t offset;
- size_t length;
-} kSubranges[] = {
- { true, 0, 0 },
- { true, 0, 2 },
- { true, 0, kBufferSize },
- { true, 2, 0 },
- { true, 2, 4 },
- { true, 2, kBufferSize - 2 },
- { true, kBufferSize - 1, 1 },
- { false, kBufferSize, 0 },
- { false, kBufferSize, static_cast<size_t>(-1) },
- { false, kBufferSize + 1, 0 },
- { false, static_cast<size_t>(-1), 2 },
- { false, 1, kBufferSize },
- { false, kBufferSize - 1, 2 },
- { false, 0, static_cast<size_t>(-1) },
- { false, 1, static_cast<size_t>(-1) },
-};
-const size_t kNumSubranges = sizeof(kSubranges) / sizeof(kSubranges[0]);
-
-// Test vectors for verifying GetArrayElement.
-const struct {
- size_t offset;
- size_t size;
- size_t index;
- const void* const pointer;
-} kElements[] = {
- // Valid array elemenets
- { 0, 1, 0, kBufferPointer },
- { 0, 1, 1, kBufferPointer + 1 },
- { 0, 1, kBufferSize - 1, kBufferPointer + kBufferSize - 1 },
- { 0, 2, 1, kBufferPointer + 2 },
- { 0, 4, 2, kBufferPointer + 8 },
- { 0, 4, 9, kBufferPointer + 36 },
- { kBufferSize - 1, 1, 0, kBufferPointer + kBufferSize - 1 },
- // Invalid array elemenets
- { 0, 1, kBufferSize, NULL },
- { 0, 4, 10, NULL },
- { kBufferSize - 1, 1, 1, NULL },
- { kBufferSize - 1, 2, 0, NULL },
- { kBufferSize, 1, 0, NULL },
-};
-const size_t kNumElements = sizeof(kElements) / sizeof(kElements[0]);
-
-} // namespace
-
-TEST(MemoryRangeTest, DefaultConstructor) {
- MemoryRange range;
- EXPECT_EQ(NULL, range.data());
- EXPECT_EQ(0U, range.length());
-}
-
-TEST(MemoryRangeTest, ConstructorWithDataAndLength) {
- MemoryRange range(kBuffer, kBufferSize);
- EXPECT_EQ(kBufferPointer, range.data());
- EXPECT_EQ(kBufferSize, range.length());
-}
-
-TEST(MemoryRangeTest, Reset) {
- MemoryRange range;
- range.Reset();
- EXPECT_EQ(NULL, range.data());
- EXPECT_EQ(0U, range.length());
-
- range.Set(kBuffer, kBufferSize);
- EXPECT_EQ(kBufferPointer, range.data());
- EXPECT_EQ(kBufferSize, range.length());
-
- range.Reset();
- EXPECT_EQ(NULL, range.data());
- EXPECT_EQ(0U, range.length());
-}
-
-TEST(MemoryRangeTest, Set) {
- MemoryRange range;
- range.Set(kBuffer, kBufferSize);
- EXPECT_EQ(kBufferPointer, range.data());
- EXPECT_EQ(kBufferSize, range.length());
-
- range.Set(NULL, 0);
- EXPECT_EQ(NULL, range.data());
- EXPECT_EQ(0U, range.length());
-}
-
-TEST(MemoryRangeTest, SubrangeOfEmptyMemoryRange) {
- MemoryRange range;
- MemoryRange subrange = range.Subrange(0, 10);
- EXPECT_EQ(NULL, subrange.data());
- EXPECT_EQ(0U, subrange.length());
-}
-
-TEST(MemoryRangeTest, SubrangeAndGetData) {
- MemoryRange range(kBuffer, kBufferSize);
- for (size_t i = 0; i < kNumSubranges; ++i) {
- bool valid = kSubranges[i].valid;
- size_t sub_offset = kSubranges[i].offset;
- size_t sub_length = kSubranges[i].length;
- SCOPED_TRACE(Message() << "offset=" << sub_offset
- << ", length=" << sub_length);
-
- MemoryRange subrange = range.Subrange(sub_offset, sub_length);
- if (valid) {
- EXPECT_TRUE(range.Covers(sub_offset, sub_length));
- EXPECT_EQ(kBufferPointer + sub_offset,
- range.GetData(sub_offset, sub_length));
- EXPECT_EQ(kBufferPointer + sub_offset, subrange.data());
- EXPECT_EQ(sub_length, subrange.length());
- } else {
- EXPECT_FALSE(range.Covers(sub_offset, sub_length));
- EXPECT_EQ(NULL, range.GetData(sub_offset, sub_length));
- EXPECT_EQ(NULL, subrange.data());
- EXPECT_EQ(0U, subrange.length());
- }
- }
-}
-
-TEST(MemoryRangeTest, GetDataWithTemplateType) {
- MemoryRange range(kBuffer, kBufferSize);
- const char* char_pointer = range.GetData<char>(0);
- EXPECT_EQ(reinterpret_cast<const char*>(kBufferPointer), char_pointer);
- const int* int_pointer = range.GetData<int>(0);
- EXPECT_EQ(reinterpret_cast<const int*>(kBufferPointer), int_pointer);
-}
-
-TEST(MemoryRangeTest, GetArrayElement) {
- MemoryRange range(kBuffer, kBufferSize);
- for (size_t i = 0; i < kNumElements; ++i) {
- size_t element_offset = kElements[i].offset;
- size_t element_size = kElements[i].size;
- unsigned element_index = kElements[i].index;
- const void* const element_pointer = kElements[i].pointer;
- SCOPED_TRACE(Message() << "offset=" << element_offset
- << ", size=" << element_size
- << ", index=" << element_index);
- EXPECT_EQ(element_pointer, range.GetArrayElement(
- element_offset, element_size, element_index));
- }
-}
-
-TEST(MemoryRangeTest, GetArrayElmentWithTemplateType) {
- MemoryRange range(kBuffer, kBufferSize);
- const char* char_pointer = range.GetArrayElement<char>(0, 0);
- EXPECT_EQ(reinterpret_cast<const char*>(kBufferPointer), char_pointer);
- const int* int_pointer = range.GetArrayElement<int>(0, 0);
- EXPECT_EQ(reinterpret_cast<const int*>(kBufferPointer), int_pointer);
-}