Add MinidumpCrashpadInfoWriter and its test

minidump/minidump_crashpad_info_writer_test.cc

+// Copyright 2014 The Crashpad Authors. All rights reserved.
+//
+// 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 "minidump/minidump_crashpad_info_writer.h"
+
+#include <dbghelp.h>
+
+#include "gtest/gtest.h"
+#include "minidump/minidump_extensions.h"
+#include "minidump/minidump_file_writer.h"
+#include "minidump/minidump_file_writer_test_util.h"
+#include "minidump/minidump_simple_string_dictionary_writer.h"
+#include "minidump/minidump_string_writer_test_util.h"
+#include "util/file/string_file_writer.h"
+
+namespace crashpad {
+namespace test {
+namespace {
+
+void GetCrashpadInfoStream(
+    const std::string& file_contents,
+    const MinidumpCrashpadInfo** crashpad_info,
+    const MinidumpSimpleStringDictionary** simple_annotations) {
+  const size_t kDirectoryOffset = sizeof(MINIDUMP_HEADER);
+  const size_t kCrashpadInfoStreamOffset =
+      kDirectoryOffset + sizeof(MINIDUMP_DIRECTORY);
+  size_t end = kCrashpadInfoStreamOffset + sizeof(MinidumpCrashpadInfo);
+  const size_t kSimpleAnnotationsOffset = simple_annotations ? end : 0;
+  if (simple_annotations) {
+    end += sizeof(MinidumpSimpleStringDictionary);
+  }
+  const size_t kFileSize = end;
+
+  if (!simple_annotations) {
+    ASSERT_EQ(kFileSize, file_contents.size());
+  } else {
+    EXPECT_GE(file_contents.size(), kFileSize);
+  }
+
+  const MINIDUMP_HEADER* header =
+      reinterpret_cast<const MINIDUMP_HEADER*>(&file_contents[0]);
+
+  ASSERT_NO_FATAL_FAILURE(VerifyMinidumpHeader(header, 1, 0));
+
+  const MINIDUMP_DIRECTORY* directory =
+      reinterpret_cast<const MINIDUMP_DIRECTORY*>(
+          &file_contents[kDirectoryOffset]);
+
+  ASSERT_EQ(kMinidumpStreamTypeCrashpadInfo, directory->StreamType);
+  ASSERT_EQ(sizeof(MinidumpCrashpadInfo), directory->Location.DataSize);
+  ASSERT_EQ(kCrashpadInfoStreamOffset, directory->Location.Rva);
+
+  *crashpad_info = reinterpret_cast<const MinidumpCrashpadInfo*>(
+      &file_contents[kCrashpadInfoStreamOffset]);
+
+  if (simple_annotations) {
+    ASSERT_GE((*crashpad_info)->simple_annotations.DataSize,
+              sizeof(MinidumpSimpleStringDictionary));
+    ASSERT_EQ(kSimpleAnnotationsOffset,
+              (*crashpad_info)->simple_annotations.Rva);
+    *simple_annotations =
+        reinterpret_cast<const MinidumpSimpleStringDictionary*>(
+            &file_contents[kSimpleAnnotationsOffset]);
+  } else {
+    ASSERT_EQ(0u, (*crashpad_info)->simple_annotations.DataSize);
+    ASSERT_EQ(0u, (*crashpad_info)->simple_annotations.Rva);
+  }
+}
+
+TEST(MinidumpCrashpadInfoWriter, Empty) {
+  MinidumpFileWriter minidump_file_writer;
+  MinidumpCrashpadInfoWriter crashpad_info_writer;
+
+  minidump_file_writer.AddStream(&crashpad_info_writer);
+
+  StringFileWriter file_writer;
+  ASSERT_TRUE(minidump_file_writer.WriteEverything(&file_writer));
+
+  const MinidumpCrashpadInfo* crashpad_info;
+
+  ASSERT_NO_FATAL_FAILURE(
+      GetCrashpadInfoStream(file_writer.string(), &crashpad_info, nullptr));
+
+  EXPECT_EQ(sizeof(*crashpad_info), crashpad_info->size);
+  EXPECT_EQ(1u, crashpad_info->version);
+  EXPECT_EQ(0u, crashpad_info->simple_annotations.DataSize);
+  EXPECT_EQ(0u, crashpad_info->simple_annotations.Rva);
+}
+
+TEST(MinidumpCrashpadInfoWriter, SimpleAnnotations) {
+  MinidumpFileWriter minidump_file_writer;
+  MinidumpCrashpadInfoWriter crashpad_info_writer;
+
+  minidump_file_writer.AddStream(&crashpad_info_writer);
+
+  MinidumpSimpleStringDictionaryWriter simple_annotations_writer;
+
+  // Set a key and value before adding the simple_annotations_writer to
+  // crashpad_info_writer, and another one after.
+  const char kKey0[] = "k0";
+  const char kValue0[] = "v";
+  const char kKey1[] = "KEY1";
+  const char kValue1[] = "";
+  MinidumpSimpleStringDictionaryEntryWriter entry_0;
+  entry_0.SetKeyValue(kKey0, kValue0);
+  simple_annotations_writer.AddEntry(&entry_0);
+
+  crashpad_info_writer.SetSimpleAnnotations(&simple_annotations_writer);
+
+  MinidumpSimpleStringDictionaryEntryWriter entry_1;
+  entry_1.SetKeyValue(kKey1, kValue1);
+  simple_annotations_writer.AddEntry(&entry_1);
+
+  StringFileWriter file_writer;
+  ASSERT_TRUE(minidump_file_writer.WriteEverything(&file_writer));
+
+  const MinidumpCrashpadInfo* crashpad_info;
+  const MinidumpSimpleStringDictionary* simple_annotations;
+
+  ASSERT_NO_FATAL_FAILURE(GetCrashpadInfoStream(
+      file_writer.string(), &crashpad_info, &simple_annotations));
+
+  EXPECT_EQ(sizeof(*crashpad_info), crashpad_info->size);
+  EXPECT_EQ(1u, crashpad_info->version);
+
+  ASSERT_EQ(2u, simple_annotations->count);
+
+  EXPECT_EQ(
+      kKey1,
+      MinidumpUTF8StringAtRVA(file_writer, simple_annotations->entries[0].key));
+  EXPECT_EQ(kValue1,
+            MinidumpUTF8StringAtRVA(file_writer,
+                                    simple_annotations->entries[0].value));
+  EXPECT_EQ(
+      kKey0,
+      MinidumpUTF8StringAtRVA(file_writer, simple_annotations->entries[1].key));
+  EXPECT_EQ(kValue0,
+            MinidumpUTF8StringAtRVA(file_writer,
+                                    simple_annotations->entries[1].value));
+}
+
+}  // namespace
+}  // namespace test
+}  // namespace crashpad