Re: testsuite failures in mainline...

From: Junio C Hamano <redacted>
Date: Fri, 14 Dec 2007 11:15:01 -0800

When I can reproduce a breakage, in our tests, I'd run

	cd t && sh -x t3200-branch.sh -i -v

(replace "t3200-*" with the failing test) and see which one of the steps
chained with && is breaking first.

Looks like a malloc() failure:

+ test_expect_success 'test tracking setup via config' 'git config branch.autosetupmerge true &&
     git config remote.local.url . &&
     git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
     (git show-ref -q refs/remotes/local/master || git-fetch local) &&
     git branch my3 local/master &&
     test $(git config branch.my3.remote) = local &&
     test $(git config branch.my3.merge) = refs/heads/master'
+ test 2 = 2
+ test_skip 'test tracking setup via config' 'git config branch.autosetupmerge true &&
     git config remote.local.url . &&
     git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
     (git show-ref -q refs/remotes/local/master || git-fetch local) &&
     git branch my3 local/master &&
     test $(git config branch.my3.remote) = local &&
     test $(git config branch.my3.merge) = refs/heads/master'
++ expr ./t3200-branch.sh : '.*/\(t[0-9]*\)-[^/]*$'
+ this_test=t3200
++ expr 19 + 1
+ this_test=t3200.20
+ to_skip=
+ case "$to_skip" in
+ false
+ say 'expecting success: git config branch.autosetupmerge true &&
     git config remote.local.url . &&
     git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
     (git show-ref -q refs/remotes/local/master || git-fetch local) &&
     git branch my3 local/master &&
     test $(git config branch.my3.remote) = local &&
     test $(git config branch.my3.merge) = refs/heads/master'
+ say_color info 'expecting success: git config branch.autosetupmerge true &&
     git config remote.local.url . &&
     git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
     (git show-ref -q refs/remotes/local/master || git-fetch local) &&
     git branch my3 local/master &&
     test $(git config branch.my3.remote) = local &&
     test $(git config branch.my3.merge) = refs/heads/master'
+ test -z info
+ shift
+ echo '* expecting success: git config branch.autosetupmerge true &&
     git config remote.local.url . &&
     git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
     (git show-ref -q refs/remotes/local/master || git-fetch local) &&
     git branch my3 local/master &&
     test $(git config branch.my3.remote) = local &&
     test $(git config branch.my3.merge) = refs/heads/master'
* expecting success: git config branch.autosetupmerge true &&
     git config remote.local.url . &&
     git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
     (git show-ref -q refs/remotes/local/master || git-fetch local) &&
     git branch my3 local/master &&
     test $(git config branch.my3.remote) = local &&
     test $(git config branch.my3.merge) = refs/heads/master
+ test_run_ 'git config branch.autosetupmerge true &&
     git config remote.local.url . &&
     git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
     (git show-ref -q refs/remotes/local/master || git-fetch local) &&
     git branch my3 local/master &&
     test $(git config branch.my3.remote) = local &&
     test $(git config branch.my3.merge) = refs/heads/master'
+ eval 'git config branch.autosetupmerge true &&
     git config remote.local.url . &&
     git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
     (git show-ref -q refs/remotes/local/master || git-fetch local) &&
     git branch my3 local/master &&
     test $(git config branch.my3.remote) = local &&
     test $(git config branch.my3.merge) = refs/heads/master'
++ git config branch.autosetupmerge true
++ git config remote.local.url .
++ git config remote.local.fetch 'refs/heads/*:refs/remotes/local/*'
++ git show-ref -q refs/remotes/local/master
++ git branch my3 local/master
fatal: Out of memory, malloc failed
+ eval_ret=128
+ return 0
+ '[' 0 = 0 -a 128 = 0 ']'
+ test_failure_ 'test tracking setup via config' 'git config branch.autosetupmerge true &&
     git config remote.local.url . &&
     git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
     (git show-ref -q refs/remotes/local/master || git-fetch local) &&
     git branch my3 local/master &&
     test $(git config branch.my3.remote) = local &&
     test $(git config branch.my3.merge) = refs/heads/master'
++ expr 19 + 1
+ test_count=20
++ expr 0 + 1
+ test_failure=1
+ say_color error 'FAIL 20: test tracking setup via config'
+ test -z error
+ shift
+ echo '* FAIL 20: test tracking setup via config'
* FAIL 20: test tracking setup via config
+ shift
+ echo 'git config branch.autosetupmerge true &&
     git config remote.local.url . &&
     git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
     (git show-ref -q refs/remotes/local/master || git-fetch local) &&
     git branch my3 local/master &&
     test $(git config branch.my3.remote) = local &&
     test $(git config branch.my3.merge) = refs/heads/master'
+ sed -e 's/^/	/'
	git config branch.autosetupmerge true &&
	     git config remote.local.url . &&
	     git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
	     (git show-ref -q refs/remotes/local/master || git-fetch local) &&
	     git branch my3 local/master &&
	     test $(git config branch.my3.remote) = local &&
	     test $(git config branch.my3.merge) = refs/heads/master
+ test t = ''
+ trap - exit
+ exit 1