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third_party/crashpad/crashpad/snapshot/mac/system_snapshot_mac_test.cc

Index: third_party/crashpad/crashpad/snapshot/mac/system_snapshot_mac_test.cc
diff --git a/third_party/crashpad/crashpad/snapshot/mac/system_snapshot_mac_test.cc b/third_party/crashpad/crashpad/snapshot/mac/system_snapshot_mac_test.cc
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+++ b/third_party/crashpad/crashpad/snapshot/mac/system_snapshot_mac_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 "snapshot/mac/system_snapshot_mac.h"
+
+#include <sys/time.h>
+#include <time.h>
+
+#include <string>
+
+#include "build/build_config.h"
+#include "gtest/gtest.h"
+#include "snapshot/mac/process_reader.h"
+#include "test/errors.h"
+#include "util/mac/mac_util.h"
+
+namespace crashpad {
+namespace test {
+namespace {
+
+// SystemSnapshotMac objects would be cumbersome to construct in each test that
+// requires one, because of the repetitive and mechanical work necessary to set
+// up a ProcessReader and timeval, along with the checks to verify that these
+// operations succeed. This test fixture class handles the initialization work
+// so that individual tests don’t have to.
+class SystemSnapshotMacTest : public testing::Test {
+ public:
+  SystemSnapshotMacTest()
+      : Test(),
+        process_reader_(),
+        snapshot_time_(),
+        system_snapshot_() {
+  }
+
+  const internal::SystemSnapshotMac& system_snapshot() const {
+    return system_snapshot_;
+  }
+
+  // testing::Test:
+  void SetUp() override {
+    ASSERT_TRUE(process_reader_.Initialize(mach_task_self()));
+    ASSERT_EQ(0, gettimeofday(&snapshot_time_, nullptr))
+        << ErrnoMessage("gettimeofday");
+    system_snapshot_.Initialize(&process_reader_, &snapshot_time_);
+  }
+
+ private:
+  ProcessReader process_reader_;
+  timeval snapshot_time_;
+  internal::SystemSnapshotMac system_snapshot_;
+
+  DISALLOW_COPY_AND_ASSIGN(SystemSnapshotMacTest);
+};
+
+TEST_F(SystemSnapshotMacTest, GetCPUArchitecture) {
+  CPUArchitecture cpu_architecture = system_snapshot().GetCPUArchitecture();
+
+#if defined(ARCH_CPU_X86)
+  EXPECT_EQ(kCPUArchitectureX86, cpu_architecture);
+#elif defined(ARCH_CPU_X86_64)
+  EXPECT_EQ(kCPUArchitectureX86_64, cpu_architecture);
+#else
+#error port to your architecture
+#endif
+}
+
+TEST_F(SystemSnapshotMacTest, CPUCount) {
+  EXPECT_GE(system_snapshot().CPUCount(), 1);
+}
+
+TEST_F(SystemSnapshotMacTest, CPUVendor) {
+  std::string cpu_vendor = system_snapshot().CPUVendor();
+
+#if defined(ARCH_CPU_X86_FAMILY)
+  // Apple has only shipped Intel x86-family CPUs, but here’s a small nod to the
+  // “Hackintosh” crowd.
+  if (cpu_vendor != "GenuineIntel" && cpu_vendor != "AuthenticAMD") {
+    FAIL() << "cpu_vendor " << cpu_vendor;
+  }
+#else
+#error port to your architecture
+#endif
+}
+
+#if defined(ARCH_CPU_X86_FAMILY)
+
+TEST_F(SystemSnapshotMacTest, CPUX86SupportsDAZ) {
+  // All x86-family CPUs that Apple is known to have shipped should support DAZ.
+  EXPECT_TRUE(system_snapshot().CPUX86SupportsDAZ());
+}
+
+#endif
+
+TEST_F(SystemSnapshotMacTest, GetOperatingSystem) {
+  EXPECT_EQ(SystemSnapshot::kOperatingSystemMacOSX,
+            system_snapshot().GetOperatingSystem());
+}
+
+TEST_F(SystemSnapshotMacTest, OSVersion) {
+  int major;
+  int minor;
+  int bugfix;
+  std::string build;
+  system_snapshot().OSVersion(&major, &minor, &bugfix, &build);
+
+  EXPECT_EQ(10, major);
+  EXPECT_EQ(MacOSXMinorVersion(), minor);
+  EXPECT_FALSE(build.empty());
+}
+
+TEST_F(SystemSnapshotMacTest, OSVersionFull) {
+  EXPECT_FALSE(system_snapshot().OSVersionFull().empty());
+}
+
+TEST_F(SystemSnapshotMacTest, MachineDescription) {
+  EXPECT_FALSE(system_snapshot().MachineDescription().empty());
+}
+
+TEST_F(SystemSnapshotMacTest, TimeZone) {
+  SystemSnapshot::DaylightSavingTimeStatus dst_status;
+  int standard_offset_seconds;
+  int daylight_offset_seconds;
+  std::string standard_name;
+  std::string daylight_name;
+
+  system_snapshot().TimeZone(&dst_status,
+                             &standard_offset_seconds,
+                             &daylight_offset_seconds,
+                             &standard_name,
+                             &daylight_name);
+
+  // |standard_offset_seconds| gives seconds east of UTC, and |timezone| gives
+  // seconds west of UTC.
+  EXPECT_EQ(-timezone, standard_offset_seconds);
+
+  // In contemporary usage, most time zones have an integer hour offset from
+  // UTC, although several are at a half-hour offset, and two are at 15-minute
+  // offsets. Throughout history, other variations existed. See
+  // http://www.timeanddate.com/time/time-zones-interesting.html.
+  EXPECT_EQ(0, standard_offset_seconds % (15 * 60))
+      << "standard_offset_seconds " << standard_offset_seconds;
+
+  if (dst_status == SystemSnapshot::kDoesNotObserveDaylightSavingTime) {
+    EXPECT_EQ(standard_offset_seconds, daylight_offset_seconds);
+    EXPECT_EQ(standard_name, daylight_name);
+  } else {
+    EXPECT_EQ(0, daylight_offset_seconds % (15 * 60))
+        << "daylight_offset_seconds " << daylight_offset_seconds;
+
+    // In contemporary usage, dst_delta_seconds will almost always be one hour,
+    // except for Lord Howe Island, Australia, which uses a 30-minute
+    // delta. Throughout history, other variations existed. See
+    // http://www.timeanddate.com/time/dst/#brief.
+    int dst_delta_seconds = daylight_offset_seconds - standard_offset_seconds;
+    if (dst_delta_seconds != 60 * 60 && dst_delta_seconds != 30 * 60) {
+      FAIL() << "dst_delta_seconds " << dst_delta_seconds;
+    }
+
+    EXPECT_NE(standard_name, daylight_name);
+  }
+}
+
+}  // namespace
+}  // namespace test
+}  // namespace crashpad