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third_party/crashpad/crashpad/minidump/minidump_context_writer_test.cc

Index: third_party/crashpad/crashpad/minidump/minidump_context_writer_test.cc
diff --git a/third_party/crashpad/crashpad/minidump/minidump_context_writer_test.cc b/third_party/crashpad/crashpad/minidump/minidump_context_writer_test.cc
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+// 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_context_writer.h"
+
+#include <stdint.h>
+
+#include "gtest/gtest.h"
+#include "minidump/minidump_context.h"
+#include "minidump/test/minidump_context_test_util.h"
+#include "minidump/test/minidump_writable_test_util.h"
+#include "snapshot/cpu_context.h"
+#include "snapshot/test/test_cpu_context.h"
+#include "util/file/string_file.h"
+
+namespace crashpad {
+namespace test {
+namespace {
+
+TEST(MinidumpContextWriter, MinidumpContextX86Writer) {
+  StringFile string_file;
+
+  {
+    // Make sure that a context writer that’s untouched writes a zeroed-out
+    // context.
+    SCOPED_TRACE("zero");
+
+    MinidumpContextX86Writer context_writer;
+
+    EXPECT_TRUE(context_writer.WriteEverything(&string_file));
+    ASSERT_EQ(sizeof(MinidumpContextX86), string_file.string().size());
+
+    const MinidumpContextX86* observed =
+        MinidumpWritableAtRVA<MinidumpContextX86>(string_file.string(), 0);
+    ASSERT_TRUE(observed);
+
+    ExpectMinidumpContextX86(0, observed, false);
+  }
+
+  {
+    SCOPED_TRACE("nonzero");
+
+    string_file.Reset();
+    const uint32_t kSeed = 0x8086;
+
+    MinidumpContextX86Writer context_writer;
+    InitializeMinidumpContextX86(context_writer.context(), kSeed);
+
+    EXPECT_TRUE(context_writer.WriteEverything(&string_file));
+    ASSERT_EQ(sizeof(MinidumpContextX86), string_file.string().size());
+
+    const MinidumpContextX86* observed =
+        MinidumpWritableAtRVA<MinidumpContextX86>(string_file.string(), 0);
+    ASSERT_TRUE(observed);
+
+    ExpectMinidumpContextX86(kSeed, observed, false);
+  }
+}
+
+TEST(MinidumpContextWriter, MinidumpContextAMD64Writer) {
+  StringFile string_file;
+
+  {
+    // Make sure that a context writer that’s untouched writes a zeroed-out
+    // context.
+    SCOPED_TRACE("zero");
+
+    MinidumpContextAMD64Writer context_writer;
+
+    EXPECT_TRUE(context_writer.WriteEverything(&string_file));
+    ASSERT_EQ(sizeof(MinidumpContextAMD64), string_file.string().size());
+
+    const MinidumpContextAMD64* observed =
+        MinidumpWritableAtRVA<MinidumpContextAMD64>(string_file.string(), 0);
+    ASSERT_TRUE(observed);
+
+    ExpectMinidumpContextAMD64(0, observed, false);
+  }
+
+  {
+    SCOPED_TRACE("nonzero");
+
+    string_file.Reset();
+    const uint32_t kSeed = 0x808664;
+
+    MinidumpContextAMD64Writer context_writer;
+    InitializeMinidumpContextAMD64(context_writer.context(), kSeed);
+
+    EXPECT_TRUE(context_writer.WriteEverything(&string_file));
+    ASSERT_EQ(sizeof(MinidumpContextAMD64), string_file.string().size());
+
+    const MinidumpContextAMD64* observed =
+        MinidumpWritableAtRVA<MinidumpContextAMD64>(string_file.string(), 0);
+    ASSERT_TRUE(observed);
+
+    ExpectMinidumpContextAMD64(kSeed, observed, false);
+  }
+}
+
+TEST(MinidumpContextWriter, CreateFromSnapshot_X86) {
+  const uint32_t kSeed = 32;
+
+  CPUContextX86 context_snapshot_x86;
+  CPUContext context_snapshot;
+  context_snapshot.x86 = &context_snapshot_x86;
+  InitializeCPUContextX86(&context_snapshot, kSeed);
+
+  scoped_ptr<MinidumpContextWriter> context_writer =
+      MinidumpContextWriter::CreateFromSnapshot(&context_snapshot);
+  ASSERT_TRUE(context_writer);
+
+  StringFile string_file;
+  ASSERT_TRUE(context_writer->WriteEverything(&string_file));
+
+  const MinidumpContextX86* observed =
+      MinidumpWritableAtRVA<MinidumpContextX86>(string_file.string(), 0);
+  ASSERT_TRUE(observed);
+
+  ExpectMinidumpContextX86(kSeed, observed, true);
+}
+
+TEST(MinidumpContextWriter, CreateFromSnapshot_AMD64) {
+  const uint32_t kSeed = 64;
+
+  CPUContextX86_64 context_snapshot_x86_64;
+  CPUContext context_snapshot;
+  context_snapshot.x86_64 = &context_snapshot_x86_64;
+  InitializeCPUContextX86_64(&context_snapshot, kSeed);
+
+  scoped_ptr<MinidumpContextWriter> context_writer =
+      MinidumpContextWriter::CreateFromSnapshot(&context_snapshot);
+  ASSERT_TRUE(context_writer);
+
+  StringFile string_file;
+  ASSERT_TRUE(context_writer->WriteEverything(&string_file));
+
+  const MinidumpContextAMD64* observed =
+      MinidumpWritableAtRVA<MinidumpContextAMD64>(string_file.string(), 0);
+  ASSERT_TRUE(observed);
+
+  ExpectMinidumpContextAMD64(kSeed, observed, true);
+}
+
+}  // namespace
+}  // namespace test
+}  // namespace crashpad