Test for exit code with command_error()

The helper function was made for occasions such as this, so use it.

Signed-off-by: Karl Hasselström <kha@treskal.com>

diff --git a/t/t1300-uncommit.sh b/t/t1300-uncommit.sh
index a906d13..a657ead 100755 (executable)
--- a/t/t1300-uncommit.sh
+++ b/t/t1300-uncommit.sh
@@ -79,7 +79,7 @@ test_expect_success \
 '
 
 test_expect_success 'Uncommit a commit with not precisely one parent' '
-    stg uncommit -n 5 ; [ $? = 2 ] &&
+    command_error stg uncommit -n 5  &&
     [ "$(echo $(stg series))" = "" ]
 '