Update mojo sdk to rev 9fbbc4f0fef1187312316c0ed992342474e139f1

mojo/edk/system/unique_identifier_unittest.cc

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "mojo/edk/system/unique_identifier.h"
+
+#include <set>
+#include <sstream>
+
+#include "base/containers/hash_tables.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace mojo {
+namespace system {
+namespace {
+
+TEST(UniqueIdentifierTest, Basic) {
+  // (This also checks copy constructibility.)
+  UniqueIdentifier id1 = UniqueIdentifier::Generate();
+
+  EXPECT_EQ(id1, id1);
+  EXPECT_FALSE(id1 != id1);
+  EXPECT_FALSE(id1 < id1);
+
+  UniqueIdentifier id2 = UniqueIdentifier::Generate();
+
+  EXPECT_FALSE(id2 == id1);
+  EXPECT_NE(id2, id1);
+  EXPECT_TRUE((id1 < id2) ^ (id2 < id1));
+
+  // Test copyability.
+  id2 = id1;
+}
+
+TEST(UniqueIdentifierTest, Logging) {
+  std::ostringstream oss1;
+  UniqueIdentifier id1 = UniqueIdentifier::Generate();
+  oss1 << id1;
+  EXPECT_FALSE(oss1.str().empty());
+
+  std::ostringstream oss2;
+  UniqueIdentifier id2 = UniqueIdentifier::Generate();
+  oss2 << id2;
+  EXPECT_FALSE(oss2.str().empty());
+
+  EXPECT_NE(id1, id2);
+  EXPECT_NE(oss1.str(), oss2.str());
+}
+
+TEST(UniqueIdentifierTest, StdSet) {
+  std::set<UniqueIdentifier> s;
+  EXPECT_TRUE(s.empty());
+
+  UniqueIdentifier id1 = UniqueIdentifier::Generate();
+  EXPECT_TRUE(s.find(id1) == s.end());
+  s.insert(id1);
+  EXPECT_TRUE(s.find(id1) != s.end());
+  EXPECT_FALSE(s.empty());
+
+  UniqueIdentifier id2 = UniqueIdentifier::Generate();
+  EXPECT_TRUE(s.find(id2) == s.end());
+  s.insert(id2);
+  EXPECT_TRUE(s.find(id2) != s.end());
+  // Make sure |id1| is still in |s|.
+  EXPECT_TRUE(s.find(id1) != s.end());
+
+  s.erase(id1);
+  EXPECT_TRUE(s.find(id1) == s.end());
+  // Make sure |id2| is still in |s|.
+  EXPECT_TRUE(s.find(id2) != s.end());
+
+  s.erase(id2);
+  EXPECT_TRUE(s.find(id2) == s.end());
+  EXPECT_TRUE(s.empty());
+}
+
+TEST(UniqueIdentifierTest, HashSet) {
+  base::hash_set<UniqueIdentifier> s;
+  EXPECT_TRUE(s.empty());
+
+  UniqueIdentifier id1 = UniqueIdentifier::Generate();
+  EXPECT_TRUE(s.find(id1) == s.end());
+  s.insert(id1);
+  EXPECT_TRUE(s.find(id1) != s.end());
+  EXPECT_FALSE(s.empty());
+
+  UniqueIdentifier id2 = UniqueIdentifier::Generate();
+  EXPECT_TRUE(s.find(id2) == s.end());
+  s.insert(id2);
+  EXPECT_TRUE(s.find(id2) != s.end());
+  // Make sure |id1| is still in |s|.
+  EXPECT_TRUE(s.find(id1) != s.end());
+
+  s.erase(id1);
+  EXPECT_TRUE(s.find(id1) == s.end());
+  // Make sure |id2| is still in |s|.
+  EXPECT_TRUE(s.find(id2) != s.end());
+
+  s.erase(id2);
+  EXPECT_TRUE(s.find(id2) == s.end());
+  EXPECT_TRUE(s.empty());
+}
+
+}  // namespace
+}  // namespace system
+}  // namespace mojo