LayoutTest http/tests/cache/disk-cache/disk-cache-204-status-code.html is a flaky failure

• Component: New Bugs
• Status: RESOLVED DUPLICATE

[Ryan Haddad]

LayoutTest http/tests/cache/disk-cache/disk-cache-204-status-code.html is a flaky failure

https://build.webkit.org/builders/Apple%20Sierra%20Debug%20WK2%20(Tests)/builds/90

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=http%2Ftests%2Fcache%2Fdisk-cache%2Fdisk-cache-204-status-code.html

--- /Volumes/Data/slave/sierra-debug-tests-wk2/build/layout-test-results/http/tests/cache/disk-cache/disk-cache-204-status-code-expected.txt
+++ /Volumes/Data/slave/sierra-debug-tests-wk2/build/layout-test-results/http/tests/cache/disk-cache/disk-cache-204-status-code-actual.txt
@@ -17,7 +17,7 @@
 
 --------Testing loads through memory cache (XHR behavior)--------
 response headers: {"Status":"204","Cache-control":"max-age=0"}
-response source: Network
+response source: Memory cache
 
 response headers: {"Status":"204","Cache-control":"max-age=100"}
 response source: Memory cache
@@ -27,7 +27,7 @@
 
 --------Testing loads through memory cache (subresource behavior)--------
 response headers: {"Status":"204","Cache-control":"max-age=0"}
-response source: Network
+response source: Memory cache
 
 response headers: {"Status":"204","Cache-control":"max-age=100"}
 response source: Memory cache

[Ryan Haddad]

Seeing this failure on  Sierra Debug WK2,  Sierra Release WK2, El Capitan Debug WK2, and iOS 10 Simulator Release WK2.

[Ryan Haddad]

Earliest failure on the flakiness dashboard was around r205357

[Ryan Haddad]

Marked test as flaky on mac-wk2 in http://trac.webkit.org/projects/webkit/changeset/206775

[Carlos Alberto Lopez Perez]

The same happens on the GTK+ port.

It fails sometimes, with the diff below which looks the same:

https://build.webkit.org/results/GTK%20Linux%2064-bit%20Release%20%28Tests%29/r212883%20%2821059%29/http/tests/cache/disk-cache/disk-cache-204-status-code-pretty-diff.html

I have marked it on the gtk TestExpectation file as flaky also in https://trac.webkit.org/changeset/212890

[Matt Lewis]

This failure has started to show up on release testers as well.

https://build.webkit.org/results/Apple%20High%20Sierra%20Release%20WK2%20(Tests)/r225841%20(1725)/results.html

It was unmarked in https://trac.webkit.org/changeset/221185/webkit for release.

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=http%2Ftests%2Fcache%2Fdisk-cache%2Fdisk-cache-204-status-code.html

Adjusted the expectation for the test in:
https://trac.webkit.org/changeset/225852/webkit

[Dawei Fenton (:realdawei)]

This failure is now flaky on the iOS Release testers as well:

--- /Volumes/Data/slave/ios-simulator-11-release-tests-wk2/build/layout-test-results/http/tests/cache/disk-cache/disk-cache-204-status-code-expected.txt
+++ /Volumes/Data/slave/ios-simulator-11-release-tests-wk2/build/layout-test-results/http/tests/cache/disk-cache/disk-cache-204-status-code-actual.txt
@@ -17,7 +17,7 @@
 
 --------Testing loads through memory cache (XHR behavior)--------
 response headers: {"Status":"204","Cache-control":"max-age=0"}
-response source: Network
+response source: Memory cache
 
 response headers: {"Status":"204","Cache-control":"max-age=100"}
 response source: Memory cache
@@ -27,7 +27,7 @@
 
 --------Testing loads through memory cache (subresource behavior)--------
 response headers: {"Status":"204","Cache-control":"max-age=0"}
-response source: Network
+response source: Memory cache
 
 response headers: {"Status":"204","Cache-control":"max-age=100"}
 response source: Memory cache


marked as flaky on iOS Release: https://trac.webkit.org/changeset/234336/webkit

[Ben Schwartz]

*** This bug has been marked as a duplicate of bug 172662 ***