[Webkit-unassigned] [Bug 143778] New: streams/reference-implementation/readable-stream.html is flaky

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=143778

            Bug ID: 143778
           Summary: streams/reference-implementation/readable-stream.html
                    is flaky
    Classification: Unclassified
           Product: WebKit
           Version: 528+ (Nightly build)
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Tools / Tests
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ap at webkit.org
                CC: calvaris at igalia.com, youennf at gmail.com

streams/reference-implementation/readable-stream.html frequently fails on bots, especially slower ones: https://webkit-test-results.appspot.com/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=streams%2Freference-implementation%2Freadable-stream.html

@@ -10,12 +10,12 @@
 FAIL ReadableStream should be able to enqueue different objects. read is not implemented
 PASS ReadableStream: if start throws an error, it should be re-thrown 
 FAIL ReadableStream: if pull rejects, it should error the stream read is not implemented
-FAIL ReadableStream: should only call pull once upon starting the stream assert_equals: pull should be called once start finishes expected 1 but got 0
+FAIL ReadableStream: should only call pull once upon starting the stream assert_equals: pull should be called exactly once expected 1 but got 0
 FAIL ReadableStream: should only call pull once for a forever-empty stream, even after reading read is not implemented
 FAIL ReadableStream: should only call pull once on a non-empty stream read from before start fulfills read is not implemented
-FAIL ReadableStream: should only call pull twice on a non-empty stream read from after start fulfills assert_equals: pull should be called once start finishes expected 1 but got 0
-FAIL ReadableStream: should call pull in reaction to read()ing the last chunk, if not draining assert_equals: pull should have been called once after read expected 1 but got 0
-FAIL ReadableStream: should not call pull() in reaction to read()ing the last chunk, if draining assert_equals: pull should have been called once after read expected 1 but got 0
+FAIL ReadableStream: should only call pull twice on a non-empty stream read from after start fulfills assert_equals: pull should be called exactly twice expected 2 but got 0
+FAIL ReadableStream: should call pull in reaction to read()ing the last chunk, if not draining assert_equals: pull should be called exactly thrice expected 3 but got 0
+FAIL ReadableStream: should not call pull() in reaction to read()ing the last chunk, if draining assert_equals: pull should be called exactly twice expected 2 but got 0
 FAIL ReadableStream: should not call pull until the previous pull call's promise fulfills read is not implemented
 FAIL ReadableStream: should pull after start, and after every read read is not implemented
 FAIL ReadableStream: should not call pull after start if the stream is now closed read is not implemented

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