t7600-merge: Use test_expect_failure to test option parsing

diff --git a/t/t7600-merge.sh b/t/t7600-merge.sh
index d21cd290d3d8e3d912b94045f3d3d9db8bdd7e7d..daf45b7ffa5bc80a4129a7f4b48dce36711d4c87 100755 (executable)
--- a/t/t7600-merge.sh
+++ b/t/t7600-merge.sh
@@ -222,36 +222,12 @@ test_expect_success 'setup' '
 test_debug 'gitk --all'
 
 test_expect_success 'test option parsing' '
-       if git merge -$ c1
-       then
-               echo "[OOPS] -$ accepted"
-               false
-       fi &&
-       if git merge --no-such c1
-       then
-               echo "[OOPS] --no-such accepted"
-               false
-       fi &&
-       if git merge -s foobar c1
-       then
-               echo "[OOPS] -s foobar accepted"
-               false
-       fi &&
-       if git merge -s=foobar c1
-       then
-               echo "[OOPS] -s=foobar accepted"
-               false
-       fi &&
-       if git merge -m
-       then
-               echo "[OOPS] missing commit msg accepted"
-               false
-       fi &&
-       if git merge
-       then
-               echo "[OOPS] missing commit references accepted"
-               false
-       fi
+       test_must_fail git merge -$ c1 &&
+       test_must_fail git merge --no-such c1 &&
+       test_must_fail git merge -s foobar c1 &&
+       test_must_fail git merge -s=foobar c1 &&
+       test_must_fail git merge -m &&
+       test_must_fail git merge
 '
 
 test_expect_success 'merge c0 with c1' '