id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
27028	Clarify failed parallel tests run message	Adam Zapletal	Adam Zapletal	"If the test suite fails while running with more than one process, and the traceback is cannot be pickled, this message is printed:

`You should re-run this test without the --parallel option to reproduce the failure and get a correct traceback.`

The CPU count on my machine is 4, and the test suite runs with 4 processors if I don't provide the `--parallel` option or if I provide it with no argument. So the message is misleading.

Perhaps the error message should say:

`You should re-run this test with the ""--parallel 1"" option to reproduce the failure and get a correct traceback.`

I'll be happy to submit a PR if this ticket is accepted."	Cleanup/optimization	closed	Testing framework	dev	Normal	fixed			Accepted	1	0	0	0	0	0