Added a config class to ease passing a set of options across webrtc.
Its main design reason is to expose control of experimental webrtc features.
R=niklas.enbom@webrtc.org
Review URL: https://webrtc-codereview.appspot.com/1450009
git-svn-id: http://webrtc.googlecode.com/svn/trunk@4004 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/webrtc/common_unittest.cc b/webrtc/common_unittest.cc
new file mode 100644
index 0000000..e672f1d
--- /dev/null
+++ b/webrtc/common_unittest.cc
@@ -0,0 +1,77 @@
+/*
+ * 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 "common.h" // NOLINT
+
+#include "gtest/gtest.h"
+
+namespace webrtc {
+namespace {
+
+struct MyExperiment {
+ enum { kDefaultFactor = 1 };
+ enum { kDefaultOffset = 2 };
+
+ MyExperiment()
+ : factor(kDefaultFactor), offset(kDefaultOffset) {}
+
+ MyExperiment(int factor, int offset)
+ : factor(factor), offset(offset) {}
+
+ int factor;
+ int offset;
+};
+
+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, SupportsPolimorphism) {
+ Config config;
+ config.Set<Algo1_CostFunction>(new SqrCost());
+ EXPECT_EQ(25, config.Get<Algo1_CostFunction>().cost(5));
+}
+} // namespace
+} // namespace webrtc