Bug 192250 – REGRESSION: [ iOS Sim ] Layout Test imported/w3c/web-platform-tests/service-workers/service-worker/update-missing-import-scripts.https.html is failing

• Component: Tools / Tests
• Status: NEW

[Truitt Savell]

The following layout test is failing on iOS Sim

imported/w3c/web-platform-tests/service-workers/service-worker/update-missing-import-scripts.https.html

Probable cause:

Test began failing recently only on iOS. The diff is long but the outcome is many printed statements about RenderBlock and RenderText. We need to try and find the regression. 

excerpt:

--- /Volumes/Data/slave/ios-simulator-12-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/service-workers/service-worker/update-missing-import-scripts.https-expected.txt
+++ /Volumes/Data/slave/ios-simulator-12-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/service-workers/service-worker/update-missing-import-scripts.https-actual.txt
@@ -1,4 +1,79 @@
-
-PASS Initialize global state 
-PASS Update service worker with new script that's missing importScripts() 
-
+layer at (0,0) size 800x600
+  RenderView at (0,0) size 800x600
+layer at (0,0) size 800x557
+  RenderBlock {HTML} at (0,0) size 800x557
+    RenderBody {BODY} at (8,19) size 784x530
+      RenderBlock {DIV} at (0,0) size 784x529
+        RenderBlock {SECTION} at (0,0) size 784x143
+          RenderBlock {H2} at (0,0) size 784x29
+            RenderText {#text} at (0,0) size 110x28
+              text run at (0,0) width 110: "Summary"
+          RenderBlock {SECTION} at (0,48) size 784x21
+            RenderBlock {P} at (0,0) size 784x20
+              RenderText {#text} at (0,0) size 116x19
+                text run at (0,0) width 116: "Harness status: "
+              RenderInline {SPAN} at (0,0) size 24x19

Diff:
https://build.webkit.org/results/Apple%20iOS%2012%20Simulator%20Release%20WK2%20(Tests)/r238744%20(1272)/imported/w3c/web-platform-tests/service-workers/service-worker/update-missing-import-scripts.https-diff.txt

Flakiness Dashboard:

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=imported%2Fw3c%2Fweb-platform-tests%2Fservice-workers%2Fservice-worker%2Fupdate-missing-import-scripts.https.html

[Alexey Proskuryakov]

Is this new with wpt test update in r238592?

[Ryan Haddad]

(In reply to Alexey Proskuryakov from comment #1)
> Is this new with wpt test update in r238592?
Yes, it looks like this test was added in that revision.

[Ryan Haddad]

Marked test as flaky in https://trac.webkit.org/r239407