[PATCH] t7502-commit.sh: test_must_fail doesn't work with inline environment variables

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When the arguments to test_must_fail() begin with a variable assignment,
test_must_fail() attempts to execute the variable assignment as a command.
This fails, and so test_must_fail returns with a successful status value
without running the command it was intended to test.

For example, the following script:

	#!/bin/sh
	test_must_fail () {
		"$@"
		test $? -gt 0 -a $? -le 129
	}
	foo='wo adrian'
	test_must_fail foo='yo adrian' sh -c 'echo foo: $foo'

always exits zero and prints the message:

	test.sh: line 3: foo=yo adrian: command not found

Test 16 calls test_must_fail in such a way and therefore has not been
testing whether git 'do[es] not fire editor in the presence of conflicts'.
Fix this by reverting to the traditional negation operator '!' and accept
the caveat that segfault will not be detected.

Signed-off-by: Brandon Casey <casey@xxxxxxxxxxxxxxx>
---


Unless you have a better work around...

-brandon


 t/t7502-commit.sh |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/t/t7502-commit.sh b/t/t7502-commit.sh
index ed871a6..e3469e0 100755
--- a/t/t7502-commit.sh
+++ b/t/t7502-commit.sh
@@ -212,7 +212,9 @@ test_expect_success 'do not fire editor in the presence of conflicts' '
 	# Must fail due to conflict
 	test_must_fail git cherry-pick -n master &&
 	echo "editor not started" >.git/result &&
-	test_must_fail GIT_EDITOR="$(pwd)/.git/FAKE_EDITOR" git commit &&
+	# We intentionally do not use test_must_fail on the next line since the
+	# mechanism does not work when setting environment variables inline
+	! GIT_EDITOR="$(pwd)/.git/FAKE_EDITOR" git commit &&
 	test "$(cat .git/result)" = "editor not started"
 '
 
-- 
1.5.5.3

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