Promise-based RTCPeerConnection::getStats implementation.

third_party/WebKit/LayoutTests/fast/peerconnection/RTCPeerConnection-getStats-promise.html

Index: third_party/WebKit/LayoutTests/fast/peerconnection/RTCPeerConnection-getStats-promise.html
diff --git a/third_party/WebKit/LayoutTests/fast/peerconnection/RTCPeerConnection-getStats-promise.html b/third_party/WebKit/LayoutTests/fast/peerconnection/RTCPeerConnection-getStats-promise.html
index 731a63a7c80fb003a87c798aa577a51284cc22d3..661c72a06a33d425cf4fb502d442992657efe94c 100644
--- a/third_party/WebKit/LayoutTests/fast/peerconnection/RTCPeerConnection-getStats-promise.html
+++ b/third_party/WebKit/LayoutTests/fast/peerconnection/RTCPeerConnection-getStats-promise.html
@@ -9,6 +9,40 @@
 <script>
 var pc = new webkitRTCPeerConnection(null);
 
+function stringify_equals(d1, d2) {
+  return JSON.stringify(d1) == JSON.stringify(d2);
+}
+
+function assert_expected_report(report) {
+  assert_true(report != null);
+  var statsCount = 0;
+  report.forEach(function(s) {
+    assert_true(s != null);
+    statsCount++;
+    assert_true(stringify_equals(s, report.get(s.id)));
+  });
+
+  // Verify that the report contains the same stats that
+  // |MockWebRTCPeerConnectionHandler::getStats| should produce.
+  assert_equals(statsCount, 1);
+  var stats = report.get('mock-stats-01');
+  assert_true(stats != null);
+  assert_equals(stats.type, 'mock-stats');
+  assert_equals(stats.timestamp, 1234.0);
+  assert_equals(stats.int32, 42);
+  assert_equals(stats.uint32, 42);
+  assert_equals(stats.int64, 42);
+  assert_equals(stats.uint64, 42);
+  assert_equals(stats.double, 42);
+  assert_equals(stats.string, '42');
+  assert_true(stringify_equals(stats.sequenceInt32, [42]));
+  assert_true(stringify_equals(stats.sequenceUint32, [42]));
+  assert_true(stringify_equals(stats.sequenceInt64, [42]));
+  assert_true(stringify_equals(stats.sequenceUint64, [42]));
+  assert_true(stringify_equals(stats.sequenceDouble, [42]));
+  assert_true(stringify_equals(stats.sequenceString, ['42']));
+}
+
 promise_test(function() {
   return navigator.mediaDevices.getUserMedia({audio:true, video:true})
     .then(function(mediaStream) {
@@ -16,11 +50,8 @@ promise_test(function() {
         var selector = pc.getLocalStreams()[0].getVideoTracks()[0];
         assert_not_equals(selector, null);
         return pc.getStats(selector)
-          .then(function(statsReport) {
-              assert_unreached('The promise should be rejected.');
-            }, function(reason) {
-              // Expecting promise to be rejected until getStats is implemented.
-              // crbug.com/627816
+          .then(function(report) {
+              assert_expected_report(report);
             });
       });
 }, 'getStats(MediaStreamTrack selector)');
@@ -30,11 +61,8 @@ promise_test(function() {
     .then(function(mediaStream) {
         pc.addStream(mediaStream);
         return pc.getStats(null)
-          .then(function(statsReport) {
-              assert_unreached('The promise should be rejected.');
-            }, function(reason) {
-              // Expecting promise to be rejected until getStats is implemented.
-              // crbug.com/627816
+          .then(function(report) {
+              assert_expected_report(report);
             });
       });
 }, 'getStats(null)');
@@ -44,11 +72,8 @@ promise_test(function() {
     .then(function(mediaStream) {
         pc.addStream(mediaStream);
         return pc.getStats()
-          .then(function(statsReport) {
-              assert_unreached('The promise should be rejected.');
-            }, function(reason) {
-              // Expecting promise to be rejected until getStats is implemented.
-              // crbug.com/627816
+          .then(function(report) {
+              assert_expected_report(report);
             });
       });
 }, 'getStats()');