Add Chromium's perf_test to testsupport.
Review URL: https://webrtc-codereview.appspot.com/936027
git-svn-id: http://webrtc.googlecode.com/svn/trunk/webrtc@3133 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/test/testsupport/perf_test.cc b/test/testsupport/perf_test.cc
new file mode 100644
index 0000000..12d2bbb
--- /dev/null
+++ b/test/testsupport/perf_test.cc
@@ -0,0 +1,177 @@
+/*
+ * Copyright (c) 2012 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.
+ */
+
+// A stripped-down version of Chromium's chrome/test/perf/perf_test.cc.
+// ResultsToString(), PrintResult(size_t value) and AppendResult(size_t value)
+// have been modified. The remainder are identical to the Chromium version.
+
+#include "webrtc/test/testsupport/perf_test.h"
+
+#include <stdio.h>
+#include <sstream>
+
+namespace {
+
+std::string ResultsToString(const std::string& measurement,
+ const std::string& modifier,
+ const std::string& trace,
+ const std::string& values,
+ const std::string& prefix,
+ const std::string& suffix,
+ const std::string& units,
+ bool important) {
+ // <*>RESULT <graph_name>: <trace_name>= <value> <units>
+ // <*>RESULT <graph_name>: <trace_name>= {<mean>, <std deviation>} <units>
+ // <*>RESULT <graph_name>: <trace_name>= [<value>,value,value,...,] <units>
+
+ // TODO(ajm): Use of a stream here may violate the style guide (depending on
+ // one's definition of "logging"). Consider adding StringPrintf-like
+ // functionality as in the original Chromium implementation.
+ std::ostringstream stream;
+ if (important) {
+ stream << "*";
+ }
+ stream << "RESULT " << measurement << modifier << ": " << trace << "= "
+ << prefix << values << suffix << " " << units << std::endl;
+ return stream.str();
+}
+
+void PrintResultsImpl(const std::string& measurement,
+ const std::string& modifier,
+ const std::string& trace,
+ const std::string& values,
+ const std::string& prefix,
+ const std::string& suffix,
+ const std::string& units,
+ bool important) {
+ printf("%s", ResultsToString(measurement, modifier, trace, values,
+ prefix, suffix, units, important).c_str());
+}
+
+} // namespace
+
+namespace webrtc {
+namespace test {
+
+void PrintResult(const std::string& measurement,
+ const std::string& modifier,
+ const std::string& trace,
+ size_t value,
+ const std::string& units,
+ bool important) {
+ std::ostringstream value_stream;
+ value_stream << value;
+ PrintResultsImpl(measurement, modifier, trace, value_stream.str(), "", "",
+ units, important);
+}
+
+void AppendResult(std::string& output,
+ const std::string& measurement,
+ const std::string& modifier,
+ const std::string& trace,
+ size_t value,
+ const std::string& units,
+ bool important) {
+ std::ostringstream value_stream;
+ value_stream << value;
+ output += ResultsToString(measurement, modifier, trace,
+ value_stream.str(),
+ "", "", units, important);
+}
+
+void PrintResult(const std::string& measurement,
+ const std::string& modifier,
+ const std::string& trace,
+ const std::string& value,
+ const std::string& units,
+ bool important) {
+ PrintResultsImpl(measurement, modifier, trace, value, "", "", units,
+ important);
+}
+
+void AppendResult(std::string& output,
+ const std::string& measurement,
+ const std::string& modifier,
+ const std::string& trace,
+ const std::string& value,
+ const std::string& units,
+ bool important) {
+ output += ResultsToString(measurement, modifier, trace, value, "", "", units,
+ important);
+}
+
+void PrintResultMeanAndError(const std::string& measurement,
+ const std::string& modifier,
+ const std::string& trace,
+ const std::string& mean_and_error,
+ const std::string& units,
+ bool important) {
+ PrintResultsImpl(measurement, modifier, trace, mean_and_error,
+ "{", "}", units, important);
+}
+
+void AppendResultMeanAndError(std::string& output,
+ const std::string& measurement,
+ const std::string& modifier,
+ const std::string& trace,
+ const std::string& mean_and_error,
+ const std::string& units,
+ bool important) {
+ output += ResultsToString(measurement, modifier, trace, mean_and_error,
+ "{", "}", units, important);
+}
+
+void PrintResultList(const std::string& measurement,
+ const std::string& modifier,
+ const std::string& trace,
+ const std::string& values,
+ const std::string& units,
+ bool important) {
+ PrintResultsImpl(measurement, modifier, trace, values,
+ "[", "]", units, important);
+}
+
+void AppendResultList(std::string& output,
+ const std::string& measurement,
+ const std::string& modifier,
+ const std::string& trace,
+ const std::string& values,
+ const std::string& units,
+ bool important) {
+ output += ResultsToString(measurement, modifier, trace, values,
+ "[", "]", units, important);
+}
+
+void PrintSystemCommitCharge(const std::string& test_name,
+ size_t charge,
+ bool important) {
+ PrintSystemCommitCharge(stdout, test_name, charge, important);
+}
+
+void PrintSystemCommitCharge(FILE* target,
+ const std::string& test_name,
+ size_t charge,
+ bool important) {
+ fprintf(target, "%s", SystemCommitChargeToString(test_name, charge,
+ important).c_str());
+}
+
+std::string SystemCommitChargeToString(const std::string& test_name,
+ size_t charge,
+ bool important) {
+ std::string trace_name(test_name);
+ std::string output;
+ AppendResult(output, "commit_charge", "", "cc" + trace_name, charge, "kb",
+ important);
+ return output;
+}
+
+} // namespace test
+} // namespace webrtc