test-lib: factor out $GIT_UNZIP setup
We set up the $GIT_UNZIP variable and lazy prereq in
multiple places (and the next patch is about to add another
one). Let's factor it out to avoid repeating ourselves.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/t/test-lib.sh b/t/test-lib.sh
index ea1e4a0..e20fc69 100644
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -750,3 +750,9 @@
# When the tests are run as root, permission tests will report that
# things are writable when they shouldn't be.
test -w / || test_set_prereq SANITY
+
+GIT_UNZIP=${GIT_UNZIP:-unzip}
+test_lazy_prereq UNZIP '
+ "$GIT_UNZIP" -v
+ test $? -ne 127
+'
