t/lib-git-daemon: fix signal checking

Test scripts checking 'git daemon' stop the daemon with a TERM signal,
and the 'stop_git_daemon' helper checks the daemon's exit status to
make sure that it indeed died because of that signal.

This check is bogus since 03c39b3458 (t/lib-git-daemon: use
test_match_signal, 2016-06-24), for two reasons:

  - Right after killing 'git daemon', 'stop_git_daemon' saves its exit
    status in a variable, but since 03c39b3458 the condition checking
    the exit status looks at '$?', which at this point is not the exit
    status of 'git daemon', but that of the variable assignment, i.e.
    it's always 0.

  - The unexpected exit status should abort the whole test script with
    'error', but it doesn't, because 03c39b3458 forgot to negate
    'test_match_signal's exit status in the condition.

This patch fixes both issues.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/t/lib-git-daemon.sh b/t/lib-git-daemon.sh
index edbea2d986134f36b86e044f307abae1457f8165..f98de95c15b14aa4030c65d26e6270dc06088372 100644 (file)
--- a/t/lib-git-daemon.sh
+++ b/t/lib-git-daemon.sh
@@ -92,7 +92,7 @@ stop_git_daemon() {
        kill "$GIT_DAEMON_PID"
        wait "$GIT_DAEMON_PID" >&3 2>&4
        ret=$?
-       if test_match_signal 15 $?
+       if ! test_match_signal 15 $ret
        then
                error "git daemon exited with status: $ret"
        fi