Index: third_party/WebKit/LayoutTests/inspector-protocol/timeline/fetch-as-stream.js |
diff --git a/third_party/WebKit/LayoutTests/inspector-protocol/timeline/fetch-as-stream.js b/third_party/WebKit/LayoutTests/inspector-protocol/timeline/fetch-as-stream.js |
new file mode 100644 |
index 0000000000000000000000000000000000000000..adb92875cb4bc3aeeb4dd9097dd9ee187a1fef5c |
--- /dev/null |
+++ b/third_party/WebKit/LayoutTests/inspector-protocol/timeline/fetch-as-stream.js |
@@ -0,0 +1,96 @@ |
+(async function(testRunner) { |
+ let {page, session, dp} = await testRunner.startHTML(` |
+ <style> |
+ div#test { |
+ display: none; |
+ background-color: blue; |
+ width: 100px; |
+ height: 100px; |
+ } |
+ </style> |
+ <div id='test'> |
+ </div> |
+ `, ''); |
+ |
+ var tracingHelper = (await testRunner.loadScript('../resources/tracing-test.js'))(testRunner, session); |
+ tracingHelper.startTracingAndSaveAsStream(onStart); |
+ |
+ function onStart() { |
+ session.evaluate(` |
+ (function performActions() |
+ { |
+ var element = document.getElementById('test'); |
+ element.style.display = 'block'; |
+ var unused = element.clientWidth; |
+ })(); |
+ `).then(evalDone); |
+ } |
+ |
+ function evalDone() { |
+ tracingHelper.stopTracingAndReturnStream(onStop); |
+ } |
+ |
+ function onStop(streamHandle) { |
+ var data1; |
+ tracingHelper.retrieveStream(streamHandle, null, null, onGotStream1); |
+ |
+ function onGotStream1(data) { |
+ data1 = data; |
+ tracingHelper.retrieveStream(streamHandle, 0, 1000, onGotStream2); |
+ } |
+ |
+ function onGotStream2(data) { |
+ if (data1 !== data) |
+ testRunner.log('FAIL: got different data for cunked vs. non-chunked reads'); |
+ dp.IO.close({ handle: streamHandle }).then(onCloseDone); |
+ } |
+ |
+ function onCloseDone(response) { |
+ testRunner.log('Error after legit close: ' + JSON.stringify(response.error)); |
+ dp.IO.read({ handle: streamHandle }).then(onReadAfterClose); |
+ } |
+ |
+ function onReadAfterClose(response) { |
+ testRunner.log('Error after illegal read: ' + JSON.stringify(response.error)); |
+ dp.IO.close({ handle: streamHandle }).then(onCloseAfterClose); |
+ } |
+ |
+ function onCloseAfterClose(response) { |
+ testRunner.log('Error after illegal close: ' + JSON.stringify(response.error)); |
+ var trace = JSON.parse(data1); |
+ performEventsSanityCheck(trace['traceEvents']); |
+ testRunner.log('Metadata: ' + typeof trace['metadata'] + (trace['metadata'] ? ', not null' : '')); |
+ testRunner.completeTest(); |
+ } |
+ } |
+ |
+ function assertGreaterOrEqual(a, b, message) { |
+ if (a >= b) |
+ return; |
+ testRunner.log(message + ' (' + a + ' < ' + b + ')'); |
+ testRunner.completeTest(); |
+ } |
+ |
+ function performEventsSanityCheck(events) { |
+ var phaseComplete = 0; |
+ |
+ var knownEvents = { |
+ 'MessageLoop::PostTask': 0, |
+ 'FunctionCall': 0, |
+ 'UpdateLayoutTree': 0, |
+ 'Layout': 0 |
+ }; |
+ |
+ for (var i = 0; i < events.length; ++i) { |
+ var event = events[i]; |
+ if (event.phase === 'X') |
+ ++phaseComplete; |
+ if (event.name in knownEvents) |
+ ++knownEvents[event.name]; |
+ } |
+ assertGreaterOrEqual(events.length, 10, 'Too few trace events recorded'); |
+ assertGreaterOrEqual(knownEvents['UpdateLayoutTree'], 1, 'Too few UpdateLayoutTree events'); |
+ assertGreaterOrEqual(knownEvents['Layout'], 1, 'Too few Layout events'); |
+ testRunner.log('Event sanity test done'); |
+ } |
+}) |