QUIC - Moved FindOrNull and FindOrDie to a separate files.

net/quic/quic_utils_chromium_test.cc

+// Copyright (c) 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 "net/quic/quic_utils_chromium.h"
+
+#include <map>
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+using std::map;
+
+namespace net {
+namespace test {
+namespace {
+
+TEST(QuicUtilsChromiumTest, FindOrNullTest) {
+  map<int, int> m;
+  m[0] = 2;
+
+  // Check FindOrNull
+  int* p1 = FindOrNull(m, 0);
+  CHECK_EQ(*p1, 2);
+  ++(*p1);
+  const map<int, int>& const_m = m;
+  const int* p2 = FindOrNull(const_m, 0);
+  CHECK_EQ(*p2, 3);
+  CHECK(FindOrNull(m, 1) == NULL);
+}
+
+TEST(QuicUtilsChromiumTest, FindOrDieTest) {
+  std::map<int, int> m;
+  m[10] = 15;
+  EXPECT_EQ(15, FindOrDie(m, 10));
+  // TODO(rtenneti): Use the latest DEATH macros after merging with latest rch's
+  // changes.
+  // ASSERT_DEATH(FindOrDie(m, 8), "Map key not found: 8");
+
+  // Make sure the non-const reference returning version works.
+  FindOrDie(m, 10) = 20;
+  EXPECT_EQ(20, FindOrDie(m, 10));
+
+  // Make sure we can lookup values in a const map.
+  const map<int, int>& const_m = m;
+  EXPECT_EQ(20, FindOrDie(const_m, 10));
+}
+
+}  // namespace
+}  // namespace test
+}  // namespace net