# [PATCH] t7419: change test_must_fail to ! for grep

2 messages from 2019-10-22 to 2019-10-23. Participants: Denton Liu, Junio C Hamano.
Thread: https://gitlist.dev/t/52088

## Denton Liu, 2019-10-22 09:57

Subject: [PATCH] t7419: change test_must_fail to ! for grep
Message-ID: <6b788f92d2ef6f6cdaf6ea9f2bbe448ce19b2f58.1571737787.git.liu.denton@gmail.com>
URL: https://gitlist.dev/e/6b788f92d2ef6f6cdaf6ea9f2bbe448ce19b2f58.1571737787.git.liu.denton%40gmail.com

```
According to t/README, test_must_fail() should only be used to test for
failure in Git commands. Replace the invocations of
`test_must_fail grep` with `! grep`.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
---
*sigh* Here's another cleanup patch for 'dl/submodule-set-branch'. It's
inspired by Eric Sunshine's comments on the t5520 patchset from earlier.
It's definitely not urgent, though, and can wait for v2.25.0.

 t/t7419-submodule-set-branch.sh | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/t/t7419-submodule-set-branch.sh b/t/t7419-submodule-set-branch.sh
index c4b370ea85..fd25f786a3 100755
--- a/t/t7419-submodule-set-branch.sh
+++ b/t/t7419-submodule-set-branch.sh
@@ -34,7 +34,7 @@ test_expect_success 'submodule config cache setup' '
 
 test_expect_success 'ensure submodule branch is unset' '
 	(cd super &&
-		test_must_fail grep branch .gitmodules
+		! grep branch .gitmodules
 	)
 '
 
@@ -54,7 +54,7 @@ test_expect_success 'test submodule set-branch --branch' '
 test_expect_success 'test submodule set-branch --default' '
 	(cd super &&
 		git submodule set-branch --default submodule &&
-		test_must_fail grep branch .gitmodules &&
+		! grep branch .gitmodules &&
 		git submodule update --remote &&
 		cat <<-\EOF >expect &&
 		a
@@ -80,7 +80,7 @@ test_expect_success 'test submodule set-branch -b' '
 test_expect_success 'test submodule set-branch -d' '
 	(cd super &&
 		git submodule set-branch -d submodule &&
-		test_must_fail grep branch .gitmodules &&
+		! grep branch .gitmodules &&
 		git submodule update --remote &&
 		cat <<-\EOF >expect &&
 		a
-- 
2.24.0.rc0.197.g0926ab8072


```

## Junio C Hamano, 2019-10-23 02:18

Subject: Re: [PATCH] t7419: change test_must_fail to ! for grep
Message-ID: <xmqq4l00jjbu.fsf@gitster-ct.c.googlers.com>
URL: https://gitlist.dev/e/xmqq4l00jjbu.fsf%40gitster-ct.c.googlers.com
In-Reply-To: <6b788f92d2ef6f6cdaf6ea9f2bbe448ce19b2f58.1571737787.git.liu.denton@gmail.com>

```
Denton Liu <liu.denton@gmail.com> writes:

> According to t/README, test_must_fail() should only be used to test for
> failure in Git commands. Replace the invocations of
> `test_must_fail grep` with `! grep`.
>
> Signed-off-by: Denton Liu <liu.denton@gmail.com>
> ---
> *sigh* Here's another cleanup patch for 'dl/submodule-set-branch'. It's
> inspired by Eric Sunshine's comments on the t5520 patchset from earlier.
> It's definitely not urgent, though, and can wait for v2.25.0.

True, but they are trivially correct and removes the risk of
inexperienced developers copying and pasting this bad pattern to
other tests that was added during this cycle, so I think it is a
good idea to take it now.

Thanks for being extra careful.

```
