1 files changed, 80 insertions, 0 deletions
diff --git a/webrtc/test/common_unittest.cc b/webrtc/test/common_unittest.cc
new file mode 100644
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+++ b/webrtc/test/common_unittest.cc
@@ -0,0 +1,80 @@
+/*
+ *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+#include "webrtc/common.h"
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace webrtc {
+namespace {
+
+struct MyExperiment {
+  static const int kDefaultFactor;
+  static const int kDefaultOffset;
+
+  MyExperiment()
+    : factor(kDefaultFactor), offset(kDefaultOffset) {}
+
+  MyExperiment(int factor, int offset)
+    : factor(factor), offset(offset) {}
+
+  int factor;
+  int offset;
+};
+
+const int MyExperiment::kDefaultFactor = 1;
+const int MyExperiment::kDefaultOffset = 2;
+
+TEST(Config, ReturnsDefaultInstanceIfNotConfigured) {
+  Config config;
+  const MyExperiment& my_exp = config.Get<MyExperiment>();
+  EXPECT_EQ(MyExperiment::kDefaultFactor, my_exp.factor);
+  EXPECT_EQ(MyExperiment::kDefaultOffset, my_exp.offset);
+}
+
+TEST(Config, ReturnOptionWhenSet) {
+  Config config;
+  config.Set<MyExperiment>(new MyExperiment(5, 1));
+  const MyExperiment& my_exp = config.Get<MyExperiment>();
+  EXPECT_EQ(5, my_exp.factor);
+  EXPECT_EQ(1, my_exp.offset);
+}
+
+TEST(Config, SetNullSetsTheOptionBackToDefault) {
+  Config config;
+  config.Set<MyExperiment>(new MyExperiment(5, 1));
+  config.Set<MyExperiment>(NULL);
+  const MyExperiment& my_exp = config.Get<MyExperiment>();
+  EXPECT_EQ(MyExperiment::kDefaultFactor, my_exp.factor);
+  EXPECT_EQ(MyExperiment::kDefaultOffset, my_exp.offset);
+}
+
+struct Algo1_CostFunction {
+  Algo1_CostFunction() {}
+
+  virtual int cost(int x) const {
+    return x;
+  }
+
+  virtual ~Algo1_CostFunction() {}
+};
+
+struct SqrCost : Algo1_CostFunction {
+  virtual int cost(int x) const {
+    return x*x;
+  }
+};
+
+TEST(Config, SupportsPolymorphism) {
+  Config config;
+  config.Set<Algo1_CostFunction>(new SqrCost());
+  EXPECT_EQ(25, config.Get<Algo1_CostFunction>().cost(5));
+}
+}  // namespace
+}  // namespace webrtc