152 lines
3.8 KiB
C++
152 lines
3.8 KiB
C++
// Copyright 2018 The Crashpad Authors
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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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#include "snapshot/memory_snapshot.h"
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#include "gtest/gtest.h"
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#include "snapshot/test/test_memory_snapshot.h"
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namespace crashpad {
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namespace test {
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namespace {
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TEST(DetermineMergedRange, NonOverlapping) {
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TestMemorySnapshot a;
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TestMemorySnapshot b;
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a.SetAddress(0);
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a.SetSize(100);
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b.SetAddress(200);
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b.SetSize(50);
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CheckedRange<uint64_t, size_t> range(0, 0);
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EXPECT_FALSE(DetermineMergedRange(&a, &b, &range));
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EXPECT_FALSE(DetermineMergedRange(&b, &a, &range));
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a.SetSize(199);
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EXPECT_FALSE(DetermineMergedRange(&a, &b, &range));
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}
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TEST(DetermineMergedRange, Empty) {
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TestMemorySnapshot a;
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TestMemorySnapshot b;
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a.SetAddress(100);
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a.SetSize(0);
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b.SetAddress(200);
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b.SetSize(20);
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CheckedRange<uint64_t, size_t> range(0, 0);
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// Empty are invalid.
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EXPECT_FALSE(DetermineMergedRange(&a, &b, &range));
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EXPECT_FALSE(DetermineMergedRange(&b, &a, &range));
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EXPECT_FALSE(DetermineMergedRange(&a, &a, &range));
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}
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TEST(DetermineMergedRange, Abutting) {
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TestMemorySnapshot a;
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TestMemorySnapshot b;
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a.SetAddress(0);
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a.SetSize(10);
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b.SetAddress(10);
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b.SetSize(20);
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CheckedRange<uint64_t, size_t> range(0, 0);
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EXPECT_TRUE(DetermineMergedRange(&a, &b, &range));
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EXPECT_EQ(0u, range.base());
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EXPECT_EQ(30u, range.size());
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EXPECT_TRUE(DetermineMergedRange(&b, &a, &range));
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EXPECT_EQ(0u, range.base());
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EXPECT_EQ(30u, range.size());
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}
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TEST(DetermineMergedRange, TypicalOverlapping) {
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TestMemorySnapshot a;
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TestMemorySnapshot b;
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a.SetAddress(10);
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a.SetSize(100);
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b.SetAddress(50);
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b.SetSize(100);
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CheckedRange<uint64_t, size_t> range(0, 0);
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EXPECT_TRUE(DetermineMergedRange(&a, &b, &range));
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EXPECT_EQ(10u, range.base());
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EXPECT_EQ(140u, range.size());
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EXPECT_TRUE(DetermineMergedRange(&b, &a, &range));
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EXPECT_EQ(10u, range.base());
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EXPECT_EQ(140u, range.size());
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}
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TEST(DetermineMergedRange, OneFullyInsideAnother) {
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TestMemorySnapshot a;
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TestMemorySnapshot b;
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a.SetAddress(20);
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a.SetSize(100);
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b.SetAddress(5);
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b.SetSize(200);
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CheckedRange<uint64_t, size_t> range(0, 0);
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EXPECT_TRUE(DetermineMergedRange(&a, &b, &range));
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EXPECT_EQ(5u, range.base());
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EXPECT_EQ(200u, range.size());
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EXPECT_TRUE(DetermineMergedRange(&b, &a, &range));
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EXPECT_EQ(5u, range.base());
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EXPECT_EQ(200u, range.size());
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}
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TEST(DetermineMergedRange, SameStart) {
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TestMemorySnapshot a;
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TestMemorySnapshot b;
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a.SetAddress(5);
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a.SetSize(100);
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b.SetAddress(5);
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b.SetSize(50);
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CheckedRange<uint64_t, size_t> range(0, 0);
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EXPECT_TRUE(DetermineMergedRange(&a, &b, &range));
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EXPECT_EQ(5u, range.base());
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EXPECT_EQ(100u, range.size());
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EXPECT_TRUE(DetermineMergedRange(&b, &a, &range));
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EXPECT_EQ(5u, range.base());
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EXPECT_EQ(100u, range.size());
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}
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TEST(DetermineMergedRange, SameEnd) {
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TestMemorySnapshot a;
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TestMemorySnapshot b;
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a.SetAddress(5);
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a.SetSize(100);
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b.SetAddress(70);
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b.SetSize(35);
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CheckedRange<uint64_t, size_t> range(0, 0);
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EXPECT_TRUE(DetermineMergedRange(&a, &b, &range));
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EXPECT_EQ(5u, range.base());
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EXPECT_EQ(100u, range.size());
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EXPECT_TRUE(DetermineMergedRange(&b, &a, &range));
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EXPECT_EQ(5u, range.base());
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EXPECT_EQ(100u, range.size());
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}
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} // namespace
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} // namespace test
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} // namespace crashpad
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