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// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/debug/crash_logging.h"
#include <stddef.h>
#include <map>
#include <string>
#include "base/bind.h"
#include "base/macros.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace {
std::map<std::string, std::string>* key_values_ = NULL;
} // namespace
class CrashLoggingTest : public testing::Test {
public:
void SetUp() override {
key_values_ = new std::map<std::string, std::string>;
base::debug::SetCrashKeyReportingFunctions(
&CrashLoggingTest::SetKeyValue,
&CrashLoggingTest::ClearKeyValue);
}
void TearDown() override {
base::debug::ResetCrashLoggingForTesting();
delete key_values_;
key_values_ = NULL;
}
private:
static void SetKeyValue(const base::StringPiece& key,
const base::StringPiece& value) {
(*key_values_)[key.as_string()] = value.as_string();
}
static void ClearKeyValue(const base::StringPiece& key) {
key_values_->erase(key.as_string());
}
};
TEST_F(CrashLoggingTest, SetClearSingle) {
const char kTestKey[] = "test-key";
base::debug::CrashKey keys[] = { { kTestKey, 255 } };
base::debug::InitCrashKeys(keys, arraysize(keys), 255);
base::debug::SetCrashKeyValue(kTestKey, "value");
EXPECT_EQ("value", (*key_values_)[kTestKey]);
base::debug::ClearCrashKey(kTestKey);
EXPECT_TRUE(key_values_->end() == key_values_->find(kTestKey));
}
TEST_F(CrashLoggingTest, SetChunked) {
const char kTestKey[] = "chunky";
const char kChunk1[] = "chunky-1";
const char kChunk2[] = "chunky-2";
const char kChunk3[] = "chunky-3";
base::debug::CrashKey keys[] = { { kTestKey, 15 } };
base::debug::InitCrashKeys(keys, arraysize(keys), 5);
std::map<std::string, std::string>& values = *key_values_;
// Fill only the first chunk.
base::debug::SetCrashKeyValue(kTestKey, "foo");
EXPECT_EQ(1u, values.size());
EXPECT_EQ("foo", values[kChunk1]);
EXPECT_TRUE(values.end() == values.find(kChunk2));
EXPECT_TRUE(values.end() == values.find(kChunk3));
// Fill three chunks with truncation (max length is 15, this string is 20).
base::debug::SetCrashKeyValue(kTestKey, "five four three two");
EXPECT_EQ(3u, values.size());
EXPECT_EQ("five ", values[kChunk1]);
EXPECT_EQ("four ", values[kChunk2]);
EXPECT_EQ("three", values[kChunk3]);
// Clear everything.
base::debug::ClearCrashKey(kTestKey);
EXPECT_EQ(0u, values.size());
EXPECT_TRUE(values.end() == values.find(kChunk1));
EXPECT_TRUE(values.end() == values.find(kChunk2));
EXPECT_TRUE(values.end() == values.find(kChunk3));
// Refill all three chunks with truncation, then test that setting a smaller
// value clears the third chunk.
base::debug::SetCrashKeyValue(kTestKey, "five four three two");
base::debug::SetCrashKeyValue(kTestKey, "allays");
EXPECT_EQ(2u, values.size());
EXPECT_EQ("allay", values[kChunk1]);
EXPECT_EQ("s", values[kChunk2]);
EXPECT_TRUE(values.end() == values.find(kChunk3));
// Clear everything.
base::debug::ClearCrashKey(kTestKey);
EXPECT_EQ(0u, values.size());
EXPECT_TRUE(values.end() == values.find(kChunk1));
EXPECT_TRUE(values.end() == values.find(kChunk2));
EXPECT_TRUE(values.end() == values.find(kChunk3));
}
TEST_F(CrashLoggingTest, ScopedCrashKey) {
const char kTestKey[] = "test-key";
base::debug::CrashKey keys[] = { { kTestKey, 255 } };
base::debug::InitCrashKeys(keys, arraysize(keys), 255);
EXPECT_EQ(0u, key_values_->size());
EXPECT_TRUE(key_values_->end() == key_values_->find(kTestKey));
{
base::debug::ScopedCrashKey scoped_crash_key(kTestKey, "value");
EXPECT_EQ("value", (*key_values_)[kTestKey]);
EXPECT_EQ(1u, key_values_->size());
}
EXPECT_EQ(0u, key_values_->size());
EXPECT_TRUE(key_values_->end() == key_values_->find(kTestKey));
}
TEST_F(CrashLoggingTest, InitSize) {
base::debug::CrashKey keys[] = {
{ "chunked-3", 15 },
{ "single", 5 },
{ "chunked-6", 30 },
};
size_t num_keys = base::debug::InitCrashKeys(keys, arraysize(keys), 5);
EXPECT_EQ(10u, num_keys);
EXPECT_TRUE(base::debug::LookupCrashKey("chunked-3"));
EXPECT_TRUE(base::debug::LookupCrashKey("single"));
EXPECT_TRUE(base::debug::LookupCrashKey("chunked-6"));
EXPECT_FALSE(base::debug::LookupCrashKey("chunked-6-4"));
}
TEST_F(CrashLoggingTest, ChunkValue) {
using base::debug::ChunkCrashKeyValue;
// Test truncation.
base::debug::CrashKey key = { "chunky", 10 };
std::vector<std::string> results =
ChunkCrashKeyValue(key, "hello world", 64);
ASSERT_EQ(1u, results.size());
EXPECT_EQ("hello worl", results[0]);
// Test short string.
results = ChunkCrashKeyValue(key, "hi", 10);
ASSERT_EQ(1u, results.size());
EXPECT_EQ("hi", results[0]);
// Test chunk pair.
key.max_length = 6;
results = ChunkCrashKeyValue(key, "foobar", 3);
ASSERT_EQ(2u, results.size());
EXPECT_EQ("foo", results[0]);
EXPECT_EQ("bar", results[1]);
// Test chunk pair truncation.
results = ChunkCrashKeyValue(key, "foobared", 3);
ASSERT_EQ(2u, results.size());
EXPECT_EQ("foo", results[0]);
EXPECT_EQ("bar", results[1]);
// Test extra chunks.
key.max_length = 100;
results = ChunkCrashKeyValue(key, "hello world", 3);
ASSERT_EQ(4u, results.size());
EXPECT_EQ("hel", results[0]);
EXPECT_EQ("lo ", results[1]);
EXPECT_EQ("wor", results[2]);
EXPECT_EQ("ld", results[3]);
}
TEST_F(CrashLoggingTest, ChunkRounding) {
// If max_length=12 and max_chunk_length=5, there should be 3 chunks,
// not 2.
base::debug::CrashKey key = { "round", 12 };
EXPECT_EQ(3u, base::debug::InitCrashKeys(&key, 1, 5));
}
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