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9244496c6f
breakpad/src/processor/minidump_unittest.cc
jimblandy 9244496c6f Breakpad Processor: Add new unit tests for google_breakpad::Minidump 
This also adds two new test utility class groups, TestAssembler and
SynthMinidump. These are overkill for what I'm doing with them here
(and may simply be overkill, period), but they make it easy to write
unit tests for code that works on binary files or raw memory contents
in a cross-platform way. I'm planning to use them for the DWARF CFI
unwinding tests and the DWARF CFI parser tests.

a=jimblandy, r=nealsid


git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@547 4c0a9323-5329-0410-9bdc-e9ce6186880e
2010-03-16 16:20:34 +00:00

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// Copyright (c) 2010, 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.
// Unit test for Minidump. Uses a pre-generated minidump and
// verifies that certain streams are correct.
#include <iostream>
#include <fstream>
#include <sstream>
#include <stdlib.h>
#include <string>
#include <vector>
#include "breakpad_googletest_includes.h"
#include "google_breakpad/common/minidump_format.h"
#include "google_breakpad/processor/minidump.h"
#include "processor/logging.h"
#include "processor/synth_minidump.h"
namespace {
using google_breakpad::Minidump;
using google_breakpad::MinidumpContext;
using google_breakpad::MinidumpMemoryList;
using google_breakpad::MinidumpMemoryRegion;
using google_breakpad::MinidumpModule;
using google_breakpad::MinidumpModuleList;
using google_breakpad::MinidumpSystemInfo;
using google_breakpad::MinidumpThread;
using google_breakpad::MinidumpThreadList;
using google_breakpad::SynthMinidump::Context;
using google_breakpad::SynthMinidump::Dump;
using google_breakpad::SynthMinidump::Memory;
using google_breakpad::SynthMinidump::Module;
using google_breakpad::SynthMinidump::Stream;
using google_breakpad::SynthMinidump::String;
using google_breakpad::SynthMinidump::SystemInfo;
using google_breakpad::SynthMinidump::Thread;
using google_breakpad::TestAssembler::kBigEndian;
using google_breakpad::TestAssembler::kLittleEndian;
using std::ifstream;
using std::istringstream;
using std::string;
using std::vector;
using ::testing::Return;
class MinidumpTest : public ::testing::Test {
public:
void SetUp() {
minidump_file_ = string(getenv("srcdir") ? getenv("srcdir") : ".") +
"/src/processor/testdata/minidump2.dmp";
}
string minidump_file_;
};
TEST_F(MinidumpTest, TestMinidumpFromFile) {
Minidump minidump(minidump_file_);
ASSERT_EQ(minidump.path(), minidump_file_);
ASSERT_TRUE(minidump.Read());
const MDRawHeader* header = minidump.header();
ASSERT_NE(header, (MDRawHeader*)NULL);
ASSERT_EQ(header->signature, u_int32_t(MD_HEADER_SIGNATURE));
//TODO: add more checks here
}
TEST_F(MinidumpTest, TestMinidumpFromStream) {
// read minidump contents into memory, construct a stringstream around them
ifstream file_stream(minidump_file_.c_str(), std::ios::in);
ASSERT_TRUE(file_stream.good());
vector<char> bytes;
file_stream.seekg(0, std::ios_base::end);
ASSERT_TRUE(file_stream.good());
bytes.resize(file_stream.tellg());
file_stream.seekg(0, std::ios_base::beg);
ASSERT_TRUE(file_stream.good());
file_stream.read(&bytes[0], bytes.size());
ASSERT_TRUE(file_stream.good());
string str(&bytes[0], bytes.size());
istringstream stream(str);
ASSERT_TRUE(stream.good());
// now read minidump from stringstream
Minidump minidump(stream);
ASSERT_EQ(minidump.path(), "");
ASSERT_TRUE(minidump.Read());
const MDRawHeader* header = minidump.header();
ASSERT_NE(header, (MDRawHeader*)NULL);
ASSERT_EQ(header->signature, u_int32_t(MD_HEADER_SIGNATURE));
//TODO: add more checks here
}
TEST(Dump, ReadBackEmpty) {
Dump dump(0);
dump.Finish();
string contents;
ASSERT_TRUE(dump.GetContents(&contents));
istringstream stream(contents);
Minidump minidump(stream);
ASSERT_TRUE(minidump.Read());
ASSERT_EQ(0U, minidump.GetDirectoryEntryCount());
}
TEST(Dump, ReadBackEmptyBigEndian) {
Dump big_minidump(0, kBigEndian);
big_minidump.Finish();
string contents;
ASSERT_TRUE(big_minidump.GetContents(&contents));
istringstream stream(contents);
Minidump minidump(stream);
ASSERT_TRUE(minidump.Read());
ASSERT_EQ(0U, minidump.GetDirectoryEntryCount());
}
TEST(Dump, OneStream) {
Dump dump(0, kBigEndian);
Stream stream(dump, 0xfbb7fa2bU);
stream.Append("stream contents");
dump.Add(&stream);
dump.Finish();
string contents;
ASSERT_TRUE(dump.GetContents(&contents));
istringstream minidump_stream(contents);
Minidump minidump(minidump_stream);
ASSERT_TRUE(minidump.Read());
ASSERT_EQ(1U, minidump.GetDirectoryEntryCount());
const MDRawDirectory *dir = minidump.GetDirectoryEntryAtIndex(0);
ASSERT_TRUE(dir != NULL);
EXPECT_EQ(0xfbb7fa2bU, dir->stream_type);
u_int32_t stream_length;
ASSERT_TRUE(minidump.SeekToStreamType(0xfbb7fa2bU, &stream_length));
ASSERT_EQ(15U, stream_length);
char stream_contents[15];
ASSERT_TRUE(minidump.ReadBytes(stream_contents, sizeof(stream_contents)));
EXPECT_EQ(string("stream contents"),
string(stream_contents, sizeof(stream_contents)));
EXPECT_FALSE(minidump.GetThreadList());
EXPECT_FALSE(minidump.GetModuleList());
EXPECT_FALSE(minidump.GetMemoryList());
EXPECT_FALSE(minidump.GetException());
EXPECT_FALSE(minidump.GetAssertion());
EXPECT_FALSE(minidump.GetSystemInfo());
EXPECT_FALSE(minidump.GetMiscInfo());
EXPECT_FALSE(minidump.GetBreakpadInfo());
}
TEST(Dump, OneMemory) {
Dump dump(0, kBigEndian);
Memory memory(dump, 0x309d68010bd21b2cULL);
memory.Append("memory contents");
dump.Add(&memory);
dump.Finish();
string contents;
ASSERT_TRUE(dump.GetContents(&contents));
istringstream minidump_stream(contents);
Minidump minidump(minidump_stream);
ASSERT_TRUE(minidump.Read());
ASSERT_EQ(1U, minidump.GetDirectoryEntryCount());
const MDRawDirectory *dir = minidump.GetDirectoryEntryAtIndex(0);
ASSERT_TRUE(dir != NULL);
EXPECT_EQ((u_int32_t) MD_MEMORY_LIST_STREAM, dir->stream_type);
MinidumpMemoryList *memory_list = minidump.GetMemoryList();
ASSERT_TRUE(memory_list != NULL);
ASSERT_EQ(1U, memory_list->region_count());
MinidumpMemoryRegion *region1 = memory_list->GetMemoryRegionAtIndex(0);
ASSERT_EQ(0x309d68010bd21b2cULL, region1->GetBase());
ASSERT_EQ(15U, region1->GetSize());
const u_int8_t *region1_bytes = region1->GetMemory();
ASSERT_TRUE(memcmp("memory contents", region1_bytes, 15) == 0);
}
// One thread --- and its requisite entourage.
TEST(Dump, OneThread) {
Dump dump(0, kLittleEndian);
Memory stack(dump, 0x2326a0fa);
stack.Append("stack for thread");
MDRawContextX86 raw_context;
raw_context.context_flags = MD_CONTEXT_X86_INTEGER | MD_CONTEXT_X86_CONTROL;
raw_context.edi = 0x3ecba80d;
raw_context.esi = 0x382583b9;
raw_context.ebx = 0x7fccc03f;
raw_context.edx = 0xf62f8ec2;
raw_context.ecx = 0x46a6a6a8;
raw_context.eax = 0x6a5025e2;
raw_context.ebp = 0xd9fabb4a;
raw_context.eip = 0x6913f540;
raw_context.cs = 0xbffe6eda;
raw_context.eflags = 0xb2ce1e2d;
raw_context.esp = 0x659caaa4;
raw_context.ss = 0x2e951ef7;
Context context(dump, raw_context);
Thread thread(dump, 0xa898f11b, stack, context,
0x9e39439f, 0x4abfc15f, 0xe499898a, 0x0d43e939dcfd0372ULL);
dump.Add(&stack);
dump.Add(&context);
dump.Add(&thread);
dump.Finish();
string contents;
ASSERT_TRUE(dump.GetContents(&contents));
istringstream minidump_stream(contents);
Minidump minidump(minidump_stream);
ASSERT_TRUE(minidump.Read());
ASSERT_EQ(2U, minidump.GetDirectoryEntryCount());
MinidumpMemoryList *md_memory_list = minidump.GetMemoryList();
ASSERT_TRUE(md_memory_list != NULL);
ASSERT_EQ(1U, md_memory_list->region_count());
MinidumpMemoryRegion *md_region = md_memory_list->GetMemoryRegionAtIndex(0);
ASSERT_EQ(0x2326a0faU, md_region->GetBase());
ASSERT_EQ(16U, md_region->GetSize());
const u_int8_t *region_bytes = md_region->GetMemory();
ASSERT_TRUE(memcmp("stack for thread", region_bytes, 16) == 0);
MinidumpThreadList *thread_list = minidump.GetThreadList();
ASSERT_TRUE(thread_list != NULL);
ASSERT_EQ(1U, thread_list->thread_count());
MinidumpThread *md_thread = thread_list->GetThreadAtIndex(0);
ASSERT_TRUE(md_thread != NULL);
u_int32_t thread_id;
ASSERT_TRUE(md_thread->GetThreadID(&thread_id));
ASSERT_EQ(0xa898f11bU, thread_id);
MinidumpMemoryRegion *md_stack = md_thread->GetMemory();
ASSERT_TRUE(md_stack != NULL);
ASSERT_EQ(0x2326a0faU, md_stack->GetBase());
ASSERT_EQ(16U, md_stack->GetSize());
const u_int8_t *md_stack_bytes = md_stack->GetMemory();
ASSERT_TRUE(memcmp("stack for thread", md_stack_bytes, 16) == 0);
MinidumpContext *md_context = md_thread->GetContext();
ASSERT_TRUE(md_context != NULL);
ASSERT_EQ((u_int32_t) MD_CONTEXT_X86, md_context->GetContextCPU());
const MDRawContextX86 *md_raw_context = md_context->GetContextX86();
ASSERT_TRUE(md_raw_context != NULL);
ASSERT_EQ((u_int32_t) (MD_CONTEXT_X86_INTEGER | MD_CONTEXT_X86_CONTROL),
(md_raw_context->context_flags
& (MD_CONTEXT_X86_INTEGER | MD_CONTEXT_X86_CONTROL)));
EXPECT_EQ(0x3ecba80dU, raw_context.edi);
EXPECT_EQ(0x382583b9U, raw_context.esi);
EXPECT_EQ(0x7fccc03fU, raw_context.ebx);
EXPECT_EQ(0xf62f8ec2U, raw_context.edx);
EXPECT_EQ(0x46a6a6a8U, raw_context.ecx);
EXPECT_EQ(0x6a5025e2U, raw_context.eax);
EXPECT_EQ(0xd9fabb4aU, raw_context.ebp);
EXPECT_EQ(0x6913f540U, raw_context.eip);
EXPECT_EQ(0xbffe6edaU, raw_context.cs);
EXPECT_EQ(0xb2ce1e2dU, raw_context.eflags);
EXPECT_EQ(0x659caaa4U, raw_context.esp);
EXPECT_EQ(0x2e951ef7U, raw_context.ss);
}
TEST(Dump, OneModule) {
static const MDVSFixedFileInfo fixed_file_info = {
0xb2fba33a, // signature
0x33d7a728, // struct_version
0x31afcb20, // file_version_hi
0xe51cdab1, // file_version_lo
0xd1ea6907, // product_version_hi
0x03032857, // product_version_lo
0x11bf71d7, // file_flags_mask
0x5fb8cdbf, // file_flags
0xe45d0d5d, // file_os
0x107d9562, // file_type
0x5a8844d4, // file_subtype
0xa8d30b20, // file_date_hi
0x651c3e4e // file_date_lo
};
Dump dump(0, kBigEndian);
String module_name(dump, "single module");
Module module(dump, 0xa90206ca83eb2852ULL, 0xada542bd,
module_name,
0xb1054d2a,
0x34571371,
fixed_file_info, // from synth_minidump_unittest_data.h
NULL, NULL);
dump.Add(&module);
dump.Add(&module_name);
dump.Finish();
string contents;
ASSERT_TRUE(dump.GetContents(&contents));
istringstream minidump_stream(contents);
Minidump minidump(minidump_stream);
ASSERT_TRUE(minidump.Read());
ASSERT_EQ(1U, minidump.GetDirectoryEntryCount());
const MDRawDirectory *dir = minidump.GetDirectoryEntryAtIndex(0);
ASSERT_TRUE(dir != NULL);
EXPECT_EQ((u_int32_t) MD_MODULE_LIST_STREAM, dir->stream_type);
MinidumpModuleList *md_module_list = minidump.GetModuleList();
ASSERT_TRUE(md_module_list != NULL);
ASSERT_EQ(1U, md_module_list->module_count());
const MinidumpModule *md_module = md_module_list->GetModuleAtIndex(0);
ASSERT_TRUE(md_module != NULL);
ASSERT_EQ(0xa90206ca83eb2852ULL, md_module->base_address());
ASSERT_EQ(0xada542bd, md_module->size());
ASSERT_EQ("single module", md_module->code_file());
const MDRawModule *md_raw_module = md_module->module();
ASSERT_TRUE(md_raw_module != NULL);
ASSERT_EQ(0xb1054d2aU, md_raw_module->time_date_stamp);
ASSERT_EQ(0x34571371U, md_raw_module->checksum);
ASSERT_TRUE(memcmp(&md_raw_module->version_info, &fixed_file_info,
sizeof(fixed_file_info)) == 0);
}
TEST(Dump, OneSystemInfo) {
Dump dump(0, kLittleEndian);
String csd_version(dump, "Petulant Pierogi");
SystemInfo system_info(dump, SystemInfo::windows_x86, csd_version);
dump.Add(&system_info);
dump.Add(&csd_version);
dump.Finish();
string contents;
ASSERT_TRUE(dump.GetContents(&contents));
istringstream minidump_stream(contents);
Minidump minidump(minidump_stream);
ASSERT_TRUE(minidump.Read());
ASSERT_EQ(1U, minidump.GetDirectoryEntryCount());
const MDRawDirectory *dir = minidump.GetDirectoryEntryAtIndex(0);
ASSERT_TRUE(dir != NULL);
EXPECT_EQ((u_int32_t) MD_SYSTEM_INFO_STREAM, dir->stream_type);
MinidumpSystemInfo *md_system_info = minidump.GetSystemInfo();
ASSERT_TRUE(md_system_info != NULL);
ASSERT_EQ("windows", md_system_info->GetOS());
ASSERT_EQ("x86", md_system_info->GetCPU());
ASSERT_EQ("Petulant Pierogi", *md_system_info->GetCSDVersion());
ASSERT_EQ("GenuineIntel", *md_system_info->GetCPUVendor());
}
TEST(Dump, BigDump) {
Dump dump(0, kLittleEndian);
// A SystemInfo stream.
String csd_version(dump, "Munificent Macaque");
SystemInfo system_info(dump, SystemInfo::windows_x86, csd_version);
dump.Add(&csd_version);
dump.Add(&system_info);
// Five threads!
Memory stack0(dump, 0x70b9ebfc);
stack0.Append("stack for thread zero");
MDRawContextX86 raw_context0;
raw_context0.context_flags = MD_CONTEXT_X86_INTEGER;
raw_context0.eip = 0xaf0709e4;
Context context0(dump, raw_context0);
Thread thread0(dump, 0xbbef4432, stack0, context0,
0xd0377e7b, 0xdb8eb0cf, 0xd73bc314, 0x09d357bac7f9a163ULL);
dump.Add(&stack0);
dump.Add(&context0);
dump.Add(&thread0);
Memory stack1(dump, 0xf988cc45);
stack1.Append("stack for thread one");
MDRawContextX86 raw_context1;
raw_context1.context_flags = MD_CONTEXT_X86_INTEGER;
raw_context1.eip = 0xe4f56f81;
Context context1(dump, raw_context1);
Thread thread1(dump, 0x657c3f58, stack1, context1,
0xa68fa182, 0x6f3cf8dd, 0xe3a78ccf, 0x78cc84775e4534bbULL);
dump.Add(&stack1);
dump.Add(&context1);
dump.Add(&thread1);
Memory stack2(dump, 0xc8a92e7c);
stack2.Append("stack for thread two");
MDRawContextX86 raw_context2;
raw_context2.context_flags = MD_CONTEXT_X86_INTEGER;
raw_context2.eip = 0xb336a438;
Context context2(dump, raw_context2);
Thread thread2(dump, 0xdf4b8a71, stack2, context2,
0x674c26b6, 0x445d7120, 0x7e700c56, 0xd89bf778e7793e17ULL);
dump.Add(&stack2);
dump.Add(&context2);
dump.Add(&thread2);
Memory stack3(dump, 0x36d08e08);
stack3.Append("stack for thread three");
MDRawContextX86 raw_context3;
raw_context3.context_flags = MD_CONTEXT_X86_INTEGER;
raw_context3.eip = 0xdf99a60c;
Context context3(dump, raw_context3);
Thread thread3(dump, 0x86e6c341, stack3, context3,
0x32dc5c55, 0x17a2aba8, 0xe0cc75e7, 0xa46393994dae83aeULL);
dump.Add(&stack3);
dump.Add(&context3);
dump.Add(&thread3);
Memory stack4(dump, 0x1e0ab4fa);
stack4.Append("stack for thread four");
MDRawContextX86 raw_context4;
raw_context4.context_flags = MD_CONTEXT_X86_INTEGER;
raw_context4.eip = 0xaa646267;
Context context4(dump, raw_context4);
Thread thread4(dump, 0x261a28d4, stack4, context4,
0x6ebd389e, 0xa0cd4759, 0x30168846, 0x164f650a0cf39d35ULL);
dump.Add(&stack4);
dump.Add(&context4);
dump.Add(&thread4);
// Three modules!
String module1_name(dump, "module one");
Module module1(dump, 0xeb77da57b5d4cbdaULL, 0x83cd5a37, module1_name);
dump.Add(&module1_name);
dump.Add(&module1);
String module2_name(dump, "module two");
Module module2(dump, 0x8675884adfe5ac90ULL, 0xb11e4ea3, module2_name);
dump.Add(&module2_name);
dump.Add(&module2);
String module3_name(dump, "module three");
Module module3(dump, 0x95fc1544da321b6cULL, 0x7c2bf081, module3_name);
dump.Add(&module3_name);
dump.Add(&module3);
// Add one more memory region, on top of the five stacks.
Memory memory5(dump, 0x61979e828040e564ULL);
memory5.Append("contents of memory 5");
dump.Add(&memory5);
dump.Finish();
string contents;
ASSERT_TRUE(dump.GetContents(&contents));
istringstream minidump_stream(contents);
Minidump minidump(minidump_stream);
ASSERT_TRUE(minidump.Read());
ASSERT_EQ(4U, minidump.GetDirectoryEntryCount());
// Check the threads.
MinidumpThreadList *thread_list = minidump.GetThreadList();
ASSERT_TRUE(thread_list != NULL);
ASSERT_EQ(5U, thread_list->thread_count());
u_int32_t thread_id;
ASSERT_TRUE(thread_list->GetThreadAtIndex(0)->GetThreadID(&thread_id));
ASSERT_EQ(0xbbef4432U, thread_id);
ASSERT_EQ(0x70b9ebfcU,
thread_list->GetThreadAtIndex(0)->GetMemory()->GetBase());
ASSERT_EQ(0xaf0709e4U,
thread_list->GetThreadAtIndex(0)->GetContext()->GetContextX86()
->eip);
ASSERT_TRUE(thread_list->GetThreadAtIndex(1)->GetThreadID(&thread_id));
ASSERT_EQ(0x657c3f58U, thread_id);
ASSERT_EQ(0xf988cc45U,
thread_list->GetThreadAtIndex(1)->GetMemory()->GetBase());
ASSERT_EQ(0xe4f56f81U,
thread_list->GetThreadAtIndex(1)->GetContext()->GetContextX86()
->eip);
ASSERT_TRUE(thread_list->GetThreadAtIndex(2)->GetThreadID(&thread_id));
ASSERT_EQ(0xdf4b8a71U, thread_id);
ASSERT_EQ(0xc8a92e7cU,
thread_list->GetThreadAtIndex(2)->GetMemory()->GetBase());
ASSERT_EQ(0xb336a438U,
thread_list->GetThreadAtIndex(2)->GetContext()->GetContextX86()
->eip);
ASSERT_TRUE(thread_list->GetThreadAtIndex(3)->GetThreadID(&thread_id));
ASSERT_EQ(0x86e6c341U, thread_id);
ASSERT_EQ(0x36d08e08U,
thread_list->GetThreadAtIndex(3)->GetMemory()->GetBase());
ASSERT_EQ(0xdf99a60cU,
thread_list->GetThreadAtIndex(3)->GetContext()->GetContextX86()
->eip);
ASSERT_TRUE(thread_list->GetThreadAtIndex(4)->GetThreadID(&thread_id));
ASSERT_EQ(0x261a28d4U, thread_id);
ASSERT_EQ(0x1e0ab4faU,
thread_list->GetThreadAtIndex(4)->GetMemory()->GetBase());
ASSERT_EQ(0xaa646267U,
thread_list->GetThreadAtIndex(4)->GetContext()->GetContextX86()
->eip);
// Check the modules.
MinidumpModuleList *md_module_list = minidump.GetModuleList();
ASSERT_TRUE(md_module_list != NULL);
ASSERT_EQ(3U, md_module_list->module_count());
EXPECT_EQ(0xeb77da57b5d4cbdaULL,
md_module_list->GetModuleAtIndex(0)->base_address());
EXPECT_EQ(0x8675884adfe5ac90ULL,
md_module_list->GetModuleAtIndex(1)->base_address());
EXPECT_EQ(0x95fc1544da321b6cULL,
md_module_list->GetModuleAtIndex(2)->base_address());
}
} // namespace
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