When stripping out log messages from the failure text, the original text gets
stored as <system-out>. That part then got lost when reducing tests. Instead of
dropping it, it needs to be joined from all failed tests. Same for
<system-err>, although that isn't used yet.
Repeating the same "Failed" message text doesn't add any
information. Separating with a blank line is more readable.
Before:
<failure message="Failed; Failed; Failed" type="">
...
--- FAIL: TestFrontProxyConfig/WithoutUID (64.89s) ; === RUN TestFrontProxyConfig/WithUID
After:
<failure message="Failed" type="">
...
--- FAIL: TestFrontProxyConfig/WithoutUID (64.89s)
=== RUN TestFrontProxyConfig/WithUID
Appending a semicolon after some text is unnecessary if it's the last
entry. This led to visually distracting extra semicolons in Spyglass which
looked like a bug in Spyglass.
Now the code checks if a semicolon is necessary before inserting it.
In Go unit tests, the entire test output becomes the failure message because
`go test` doesn't track why a test fails. This can make the failure message
pretty large, in particular in integration tests.
We cannot identify the real failure either because Kubernetes has no convention
for how to format test failures. What we can do is recognize log output added
by klog.
prune-junit-xml now moves the full text to to the test output and only keep
those lines in the failure which are not from klog.
The klog output parsing might eventually get moved to
k8s.io/logtools/logparse. For now it is developed as a sub-package of
prune-junit-xml.
