crashpad/snapshot/memory_snapshot_test.cc
Mark Mentovai 6278690abe Update copyright boilerplate, 2022 edition (Crashpad)
sed -i '' -E -e 's/Copyright (.+) The Crashpad Authors\. All rights reserved\.$/Copyright \1 The Crashpad Authors/' $(git grep -El 'Copyright (.+) The Crashpad Authors\. All rights reserved\.$')

Bug: chromium:1098010
Change-Id: I8d6138469ddbe3d281a5d83f64cf918ec2491611
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3878262
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
2022-09-06 23:54:07 +00:00

152 lines
3.8 KiB
C++

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