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      1 // Copyright (c) 2010, Google Inc.
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     19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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     28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29 
     30 // Original author: Jim Blandy <jimb (at) mozilla.com> <jimb (at) red-bean.com>
     31 
     32 // synth_minidump_unittest.cc: Unit tests for google_breakpad::SynthMinidump
     33 // classes.
     34 
     35 #include <sstream>
     36 #include <string>
     37 
     38 #include "breakpad_googletest_includes.h"
     39 #include "common/using_std_string.h"
     40 #include "google_breakpad/common/minidump_format.h"
     41 #include "processor/synth_minidump.h"
     42 #include "processor/synth_minidump_unittest_data.h"
     43 
     44 using google_breakpad::SynthMinidump::Context;
     45 using google_breakpad::SynthMinidump::Dump;
     46 using google_breakpad::SynthMinidump::Exception;
     47 using google_breakpad::SynthMinidump::List;
     48 using google_breakpad::SynthMinidump::Memory;
     49 using google_breakpad::SynthMinidump::Module;
     50 using google_breakpad::SynthMinidump::Section;
     51 using google_breakpad::SynthMinidump::Stream;
     52 using google_breakpad::SynthMinidump::String;
     53 using google_breakpad::SynthMinidump::SystemInfo;
     54 using google_breakpad::test_assembler::kBigEndian;
     55 using google_breakpad::test_assembler::kLittleEndian;
     56 using google_breakpad::test_assembler::Label;
     57 
     58 TEST(Section, Simple) {
     59   Dump dump(0);
     60   Section section(dump);
     61   section.L32(0x12345678);
     62   section.Finish(0);
     63   string contents;
     64   ASSERT_TRUE(section.GetContents(&contents));
     65   EXPECT_EQ(string("\x78\x56\x34\x12", 4), contents);
     66 }
     67 
     68 TEST(Section, CiteLocationIn) {
     69   Dump dump(0, kBigEndian);
     70   Section section1(dump), section2(dump);
     71   section1.Append("order");
     72   section2.Append("mayhem");
     73   section2.Finish(0x32287ec2);
     74   section2.CiteLocationIn(&section1);
     75   string contents;
     76   ASSERT_TRUE(section1.GetContents(&contents));
     77   string expected("order\0\0\0\x06\x32\x28\x7e\xc2", 13);
     78   EXPECT_EQ(expected, contents);
     79 }
     80 
     81 TEST(Stream, CiteStreamIn) {
     82   Dump dump(0, kLittleEndian);
     83   Stream stream(dump, 0x40cae2b3);
     84   Section section(dump);
     85   stream.Append("stream contents");
     86   section.Append("section contents");
     87   stream.Finish(0x41424344);
     88   stream.CiteStreamIn(&section);
     89   string contents;
     90   ASSERT_TRUE(section.GetContents(&contents));
     91   string expected("section contents"
     92                   "\xb3\xe2\xca\x40"
     93                   "\x0f\0\0\0"
     94                   "\x44\x43\x42\x41",
     95                   16 + 4 + 4 + 4);
     96   EXPECT_EQ(expected, contents);
     97 }
     98 
     99 TEST(Memory, CiteMemoryIn) {
    100   Dump dump(0, kBigEndian);
    101   Memory memory(dump, 0x76d010874ab019f9ULL);
    102   Section section(dump);
    103   memory.Append("memory contents");
    104   section.Append("section contents");
    105   memory.Finish(0x51525354);
    106   memory.CiteMemoryIn(&section);
    107   string contents;
    108   ASSERT_TRUE(section.GetContents(&contents));
    109   string expected("section contents"
    110                   "\x76\xd0\x10\x87\x4a\xb0\x19\xf9"
    111                   "\0\0\0\x0f"
    112                   "\x51\x52\x53\x54",
    113                   16 + 8 + 4 + 4);
    114   EXPECT_EQ(contents, expected);
    115 }
    116 
    117 TEST(Memory, Here) {
    118   Dump dump(0, kBigEndian);
    119   Memory memory(dump, 0x89979731eb060ed4ULL);
    120   memory.Append(1729, 42);
    121   Label l = memory.Here();
    122   ASSERT_EQ(0x89979731eb060ed4ULL + 1729, l.Value());
    123 }
    124 
    125 TEST(Context, X86) {
    126   Dump dump(0, kLittleEndian);
    127   assert(x86_raw_context.context_flags & MD_CONTEXT_X86);
    128   Context context(dump, x86_raw_context);
    129   string contents;
    130   ASSERT_TRUE(context.GetContents(&contents));
    131   EXPECT_EQ(sizeof(x86_expected_contents), contents.size());
    132   EXPECT_TRUE(memcmp(contents.data(), x86_expected_contents, contents.size())
    133               == 0);
    134 }
    135 
    136 TEST(Context, ARM) {
    137   Dump dump(0, kLittleEndian);
    138   assert(arm_raw_context.context_flags & MD_CONTEXT_ARM);
    139   Context context(dump, arm_raw_context);
    140   string contents;
    141   ASSERT_TRUE(context.GetContents(&contents));
    142   EXPECT_EQ(sizeof(arm_expected_contents), contents.size());
    143   EXPECT_TRUE(memcmp(contents.data(), arm_expected_contents, contents.size())
    144               == 0);
    145 }
    146 
    147 TEST(ContextDeathTest, X86BadFlags) {
    148   Dump dump(0, kLittleEndian);
    149   MDRawContextX86 raw;
    150   raw.context_flags = MD_CONTEXT_AMD64;
    151   ASSERT_DEATH(Context context(dump, raw);,
    152                "context\\.context_flags & (0x[0-9a-f]+|MD_CONTEXT_X86)");
    153 }
    154 
    155 TEST(ContextDeathTest, X86BadEndianness) {
    156   Dump dump(0, kBigEndian);
    157   MDRawContextX86 raw;
    158   raw.context_flags = MD_CONTEXT_X86;
    159   ASSERT_DEATH(Context context(dump, raw);,
    160                "dump\\.endianness\\(\\) == kLittleEndian");
    161 }
    162 
    163 TEST(Thread, Simple) {
    164   Dump dump(0, kLittleEndian);
    165   Context context(dump, x86_raw_context);
    166   context.Finish(0x8665da0c);
    167   Memory stack(dump, 0xaad55a93cc3c0efcULL);
    168   stack.Append("stack contents");
    169   stack.Finish(0xe08cdbd1);
    170   google_breakpad::SynthMinidump::Thread thread(
    171       dump, 0x3d7ec360, stack, context,
    172       0x3593f44d, // suspend count
    173       0xab352b82, // priority class
    174       0x2753d838, // priority
    175       0xeb2de4be3f29e3e9ULL); // thread environment block
    176   string contents;
    177   ASSERT_TRUE(thread.GetContents(&contents));
    178   static const uint8_t expected_bytes[] = {
    179     0x60, 0xc3, 0x7e, 0x3d, // thread id
    180     0x4d, 0xf4, 0x93, 0x35, // suspend count
    181     0x82, 0x2b, 0x35, 0xab, // priority class
    182     0x38, 0xd8, 0x53, 0x27, // priority
    183     0xe9, 0xe3, 0x29, 0x3f, 0xbe, 0xe4, 0x2d, 0xeb, // thread environment block
    184     0xfc, 0x0e, 0x3c, 0xcc, 0x93, 0x5a, 0xd5, 0xaa, // stack address
    185     0x0e, 0x00, 0x00, 0x00, // stack size
    186     0xd1, 0xdb, 0x8c, 0xe0, // stack MDRVA
    187     0xcc, 0x02, 0x00, 0x00, // context size
    188     0x0c, 0xda, 0x65, 0x86  // context MDRVA
    189   };
    190   EXPECT_EQ(sizeof(expected_bytes), contents.size());
    191   EXPECT_TRUE(memcmp(contents.data(), expected_bytes, contents.size()) == 0);
    192 }
    193 
    194 TEST(Exception, Simple) {
    195   Dump dump(0, kLittleEndian);
    196   Context context(dump, x86_raw_context);
    197   context.Finish(0x8665da0c);
    198 
    199   Exception exception(dump, context,
    200                       0x1234abcd, // thread id
    201                       0xdcba4321, // exception code
    202                       0xf0e0d0c0, // exception flags
    203                       0x0919a9b9c9d9e9f9ULL); // exception address
    204   string contents;
    205   ASSERT_TRUE(exception.GetContents(&contents));
    206   static const uint8_t expected_bytes[] = {
    207     0xcd, 0xab, 0x34, 0x12, // thread id
    208     0x00, 0x00, 0x00, 0x00, // __align
    209     0x21, 0x43, 0xba, 0xdc, // exception code
    210     0xc0, 0xd0, 0xe0, 0xf0, // exception flags
    211     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // exception record
    212     0xf9, 0xe9, 0xd9, 0xc9, 0xb9, 0xa9, 0x19, 0x09, // exception address
    213     0x00, 0x00, 0x00, 0x00, // number parameters
    214     0x00, 0x00, 0x00, 0x00, // __align
    215     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // exception_information
    216     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // exception_information
    217     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // exception_information
    218     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // exception_information
    219     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // exception_information
    220     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // exception_information
    221     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // exception_information
    222     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // exception_information
    223     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // exception_information
    224     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // exception_information
    225     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // exception_information
    226     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // exception_information
    227     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // exception_information
    228     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // exception_information
    229     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // exception_information
    230     0xcc, 0x02, 0x00, 0x00, // context size
    231     0x0c, 0xda, 0x65, 0x86  // context MDRVA
    232   };
    233   EXPECT_EQ(sizeof(expected_bytes), contents.size());
    234   EXPECT_TRUE(memcmp(contents.data(), expected_bytes, contents.size()) == 0);
    235 }
    236 
    237 TEST(String, Simple) {
    238   Dump dump(0, kBigEndian);
    239   String s(dump, "All mimsy were the borogoves");
    240   string contents;
    241   ASSERT_TRUE(s.GetContents(&contents));
    242   static const char expected[] =
    243     "\x00\x00\x00\x38\0A\0l\0l\0 \0m\0i\0m\0s\0y\0 \0w\0e\0r\0e"
    244     "\0 \0t\0h\0e\0 \0b\0o\0r\0o\0g\0o\0v\0e\0s";
    245   string expected_string(expected, sizeof(expected) - 1);
    246   EXPECT_EQ(expected_string, contents);
    247 }
    248 
    249 TEST(String, CiteStringIn) {
    250   Dump dump(0, kLittleEndian);
    251   String s(dump, "and the mome wraths outgrabe");
    252   Section section(dump);
    253   section.Append("initial");
    254   s.CiteStringIn(&section);
    255   s.Finish(0xdc2bb469);
    256   string contents;
    257   ASSERT_TRUE(section.GetContents(&contents));
    258   EXPECT_EQ(string("initial\x69\xb4\x2b\xdc", 7 + 4), contents);
    259 }
    260 
    261 TEST(List, Empty) {
    262   Dump dump(0, kBigEndian);
    263   List<Section> list(dump, 0x2442779c);
    264   EXPECT_TRUE(list.Empty());
    265   list.Finish(0x84e09808);
    266   string contents;
    267   ASSERT_TRUE(list.GetContents(&contents));
    268   EXPECT_EQ(string("\0\0\0\0", 4), contents);
    269 }
    270 
    271 TEST(List, Two) {
    272   Dump dump(0, kBigEndian);
    273   List<Section> list(dump, 0x26c9f498);
    274   Section section1(dump);
    275   section1.Append("section one contents");
    276   EXPECT_TRUE(list.Empty());
    277   list.Add(&section1);
    278   EXPECT_FALSE(list.Empty());
    279   Section section2(dump);
    280   section2.Append("section two contents");
    281   list.Add(&section2);
    282   list.Finish(0x1e5bb60e);
    283   string contents;
    284   ASSERT_TRUE(list.GetContents(&contents));
    285   EXPECT_EQ(string("\0\0\0\x02section one contentssection two contents", 44),
    286             contents);
    287 }
    288 
    289 TEST(Dump, Header) {
    290   Dump dump(0x9f738b33685cc84cULL, kLittleEndian, 0xb3817faf, 0x2c741c0a);
    291   dump.Finish();
    292   string contents;
    293   ASSERT_TRUE(dump.GetContents(&contents));
    294   ASSERT_EQ(string("\x4d\x44\x4d\x50"   // signature
    295                    "\xaf\x7f\x81\xb3"   // version
    296                    "\0\0\0\0"           // stream count
    297                    "\x20\0\0\0"         // directory RVA (could be anything)
    298                    "\0\0\0\0"           // checksum
    299                    "\x0a\x1c\x74\x2c"   // time_date_stamp
    300                    "\x4c\xc8\x5c\x68\x33\x8b\x73\x9f", // flags
    301                    32),
    302             contents);
    303 }
    304 
    305 TEST(Dump, HeaderBigEndian) {
    306   Dump dump(0x206ce3cc6fb8e0f0ULL, kBigEndian, 0x161693e2, 0x35667744);
    307   dump.Finish();
    308   string contents;
    309   ASSERT_TRUE(dump.GetContents(&contents));
    310   ASSERT_EQ(string("\x50\x4d\x44\x4d"   // signature
    311                    "\x16\x16\x93\xe2"   // version
    312                    "\0\0\0\0"           // stream count
    313                    "\0\0\0\x20"         // directory RVA (could be anything)
    314                    "\0\0\0\0"           // checksum
    315                    "\x35\x66\x77\x44"   // time_date_stamp
    316                    "\x20\x6c\xe3\xcc\x6f\xb8\xe0\xf0", // flags
    317                    32),
    318             contents);
    319 }
    320 
    321 TEST(Dump, OneSection) {
    322   Dump dump(0, kLittleEndian);
    323   Section section(dump);
    324   section.Append("section contents");
    325   dump.Add(&section);
    326   dump.Finish();
    327   string dump_contents;
    328   // Just check for undefined labels; don't worry about the contents.
    329   ASSERT_TRUE(dump.GetContents(&dump_contents));
    330 
    331   Section referencing_section(dump);
    332   section.CiteLocationIn(&referencing_section);
    333   string contents;
    334   ASSERT_TRUE(referencing_section.GetContents(&contents));
    335   ASSERT_EQ(string("\x10\0\0\0\x20\0\0\0", 8), contents);
    336 }
    337