[ChromeDriver] Implementing tracing support

chrome/test/chromedriver/capabilities_unittest.cc

 // Copyright (c) 2013 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 "chrome/test/chromedriver/capabilities.h"
 
 #include "base/values.h"
 #include "chrome/test/chromedriver/chrome/log.h"
 #include "chrome/test/chromedriver/chrome/status.h"
 #include "chrome/test/chromedriver/logging.h"
@@ skipping 347 matching lines @@
   Status status = capabilities.Parse(desired_caps);
   ASSERT_TRUE(status.IsOk());
   ASSERT_EQ(PerfLoggingPrefs::InspectorDomainStatus::kExplicitlyEnabled,
             capabilities.perf_logging_prefs.network);
   ASSERT_EQ(PerfLoggingPrefs::InspectorDomainStatus::kExplicitlyDisabled,
             capabilities.perf_logging_prefs.page);
   ASSERT_EQ(PerfLoggingPrefs::InspectorDomainStatus::kDefaultEnabled,
             capabilities.perf_logging_prefs.timeline);
 }
 
-TEST(ParseCapabilities, PerfLoggingPrefsTraceCategories) {
+TEST(ParseCapabilities, PerfLoggingPrefsTracing) {
   Capabilities capabilities;
   // Perf log must be enabled if performance log preferences are specified.
   base::DictionaryValue logging_prefs;
   logging_prefs.SetString(WebDriverLog::kPerformanceType, "INFO");
   base::DictionaryValue desired_caps;
   desired_caps.Set("loggingPrefs", logging_prefs.DeepCopy());
   ASSERT_EQ("", capabilities.perf_logging_prefs.trace_categories);
   base::DictionaryValue perf_logging_prefs;
-  perf_logging_prefs.SetString("traceCategories", "benchmark,webkit.console");
+  perf_logging_prefs.SetString("traceCategories", "benchmark,blink.console");
+  perf_logging_prefs.SetInteger("bufferUsageReportingInterval", 1234);
   desired_caps.Set("chromeOptions.perfLoggingPrefs",
                    perf_logging_prefs.DeepCopy());
   Status status = capabilities.Parse(desired_caps);
   ASSERT_TRUE(status.IsOk());
-  ASSERT_EQ("benchmark,webkit.console",
+  ASSERT_EQ("benchmark,blink.console",
             capabilities.perf_logging_prefs.trace_categories);
+  ASSERT_EQ(1234,
+            capabilities.perf_logging_prefs.buffer_usage_reporting_interval);
+}
+
+TEST(ParseCapabilities, PerfLoggingPrefsInvalidInterval) {
+  Capabilities capabilities;
+  // Perf log must be enabled if performance log preferences are specified.
+  base::DictionaryValue logging_prefs;
+  logging_prefs.SetString(WebDriverLog::kPerformanceType, "INFO");
+  base::DictionaryValue desired_caps;
+  desired_caps.Set("loggingPrefs", logging_prefs.DeepCopy());
+  base::DictionaryValue perf_logging_prefs;
+  // A bufferUsageReportingInterval interval <= 0 will cause DevTools errors.
+  perf_logging_prefs.SetInteger("bufferUsageReportingInterval", 0);
+  desired_caps.Set("chromeOptions.perfLoggingPrefs",
+                   perf_logging_prefs.DeepCopy());
+  Status status = capabilities.Parse(desired_caps);
+  ASSERT_FALSE(status.IsOk());
 }
 
 TEST(ParseCapabilities, PerfLoggingPrefsNotDict) {
   Capabilities capabilities;
   // Perf log must be enabled if performance log preferences are specified.
   base::DictionaryValue logging_prefs;
   logging_prefs.SetString(WebDriverLog::kPerformanceType, "INFO");
   base::DictionaryValue desired_caps;
   desired_caps.Set("loggingPrefs", logging_prefs.DeepCopy());
   desired_caps.SetString("chromeOptions.perfLoggingPrefs", "traceCategories");
@@ skipping 142 matching lines @@
   base::DictionaryValue mobile_emulation;
   mobile_emulation.SetString("deviceName", "Google Nexus 5");
   mobile_emulation.SetInteger("deviceMetrics.width", 360);
   mobile_emulation.SetInteger("deviceMetrics.height", 640);
   mobile_emulation.SetDouble("deviceMetrics.pixelRatio", 3.0);
   base::DictionaryValue caps;
   caps.Set("chromeOptions.mobileEmulation", mobile_emulation.DeepCopy());
   Status status = capabilities.Parse(caps);
   ASSERT_FALSE(status.IsOk());
 }