implement test_might_fail using a refactored test_must_fail

Add an (optional) first parameter "ok=<special case>" to test_must_fail and return success for "<special case>". Add "success" as "<special case>" and use it to implement "test_might_fail". This removes redundancies in test-lib-function.sh. You can pass multiple <special case> arguments divided by comma (e.g. "test_must_fail ok=success,something") Signed-off-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com> Signed-off-by: Jeff King <peff@peff.net>

Lars Schneider committed Nov 27, 2015 at 10:15 UTC bbfe5302d50891233cef645b74324c01d8b004c8
1 file changed +33 -14
t/test-lib-functions.sh
+33 -14
@@ -569,6 +569,21 @@ test_line_count () {
569 fi
570 }
571
572 +# Returns success if a comma separated string of keywords ($1) contains a
573 +# given keyword ($2).
574 +# Examples:
575 +# `list_contains "foo,bar" bar` returns 0
576 +# `list_contains "foo" bar` returns 1
577 +
578 +list_contains () {
579 + case ",$1," in
580 + *,$2,*)
581 + return 0
582 + ;;
583 + esac
584 + return 1
585 +}
586 +
587 # This is not among top-level (test_expect_success | test_expect_failure)
588 # but is a prefix that can be used in the test script, like:
589 #
@@ -582,18 +597,31 @@ test_line_count () {
597 # the failure could be due to a segv. We want a controlled failure.
598
599 test_must_fail () {
600 + case "$1" in
601 + ok=*)
602 + _test_ok=${1#ok=}
603 + shift
604 + ;;
605 + *)
606 + _test_ok=
607 + ;;
608 + esac
609 "$@"
610 exit_code=$?
587 - if test $exit_code = 0; then
611 + if test $exit_code -eq 0 && ! list_contains "$_test_ok" success
612 + then
613 echo >&2 "test_must_fail: command succeeded: $*"
614 return 1
590 - elif test $exit_code -gt 129 && test $exit_code -le 192; then
615 + elif test $exit_code -gt 129 && test $exit_code -le 192
616 + then
617 echo >&2 "test_must_fail: died by signal: $*"
618 return 1
593 - elif test $exit_code = 127; then
619 + elif test $exit_code -eq 127
620 + then
621 echo >&2 "test_must_fail: command not found: $*"
622 return 1
596 - elif test $exit_code = 126; then
623 + elif test $exit_code -eq 126
624 + then
625 echo >&2 "test_must_fail: valgrind error: $*"
626 return 1
627 fi
@@ -612,16 +640,7 @@ test_must_fail () {
640 # because we want to notice if it fails due to segv.
641
642 test_might_fail () {
615 - "$@"
616 - exit_code=$?
617 - if test $exit_code -gt 129 && test $exit_code -le 192; then
618 - echo >&2 "test_might_fail: died by signal: $*"
619 - return 1
620 - elif test $exit_code = 127; then
621 - echo >&2 "test_might_fail: command not found: $*"
622 - return 1
623 - fi
624 - return 0
643 + test_must_fail ok=success "$@"
644 }
645
646 # Similar to test_must_fail and test_might_fail, but check that a