From 41ac414ea2bef81af94474cbef25a38868b4788e Mon Sep 17 00:00:00 2001
From: Junio C Hamano <gitster@pobox.com>
Date: Fri, 1 Feb 2008 01:50:53 -0800
Subject: Sane use of test_expect_failure

Originally, test_expect_failure was designed to be the opposite
of test_expect_success, but this was a bad decision.  Most tests
run a series of commands that leads to the single command that
needs to be tested, like this:

    test_expect_{success,failure} 'test title' '
	setup1 &&
        setup2 &&
        setup3 &&
        what is to be tested
    '

And expecting a failure exit from the whole sequence misses the
point of writing tests.  Your setup$N that are supposed to
succeed may have failed without even reaching what you are
trying to test.  The only valid use of test_expect_failure is to
check a trivial single command that is expected to fail, which
is a minority in tests of Porcelain-ish commands.

This large-ish patch rewrites all uses of test_expect_failure to
use test_expect_success and rewrites the condition of what is
tested, like this:

    test_expect_success 'test title' '
	setup1 &&
        setup2 &&
        setup3 &&
        ! this command should fail
    '

test_expect_failure is redefined to serve as a reminder that
that test *should* succeed but due to a known breakage in git it
currently does not pass.  So if git-foo command should create a
file 'bar' but you discovered a bug that it doesn't, you can
write a test like this:

    test_expect_failure 'git-foo should create bar' '
        rm -f bar &&
        git foo &&
        test -f bar
    '

This construct acts similar to test_expect_success, but instead
of reporting "ok/FAIL" like test_expect_success does, the
outcome is reported as "FIXED/still broken".

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 t/t0040-parse-options.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 't/t0040-parse-options.sh')

diff --git a/t/t0040-parse-options.sh b/t/t0040-parse-options.sh
index 0a3b55d121..0e2933a984 100755
--- a/t/t0040-parse-options.sh
+++ b/t/t0040-parse-options.sh
@@ -87,9 +87,9 @@ test_expect_success 'unambiguously abbreviated option with "="' '
 	git diff expect output
 '
 
-test_expect_failure 'ambiguously abbreviated option' '
+test_expect_success 'ambiguously abbreviated option' '
 	test-parse-options --strin 123;
-        test $? != 129
+	test $? = 129
 '
 
 cat > expect << EOF
-- 
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