[PATCH 1/2] t0303: set reason for skipping tests

["Zbigniew Jędrzejewski-Szmek" <zbyszek@in.waw.pl>]

t0300-credential-helpers.sh runs two sets of tests. Each set is
controlled by an environment variable and is skipped if the variable
is not defined. If both sets are skipped, prove will say:
  ./t0303-credential-external.sh .. skipped: (no reason given)
which isn't very nice.

Use skip_all="..." to set the reason when both sets are skipped.

Signed-off-by: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
---
 t/t0303-credential-external.sh |    9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/t/t0303-credential-external.sh b/t/t0303-credential-external.sh
index 267f4c8..f1e0e75 100755
--- a/t/t0303-credential-external.sh
+++ b/t/t0303-credential-external.sh
@@ -21,7 +21,7 @@ post_test() {
 }
 
 if test -z "$GIT_TEST_CREDENTIAL_HELPER"; then
-	say "# skipping external helper tests (set GIT_TEST_CREDENTIAL_HELPER)"
+	say "# skipping external helper tests (GIT_TEST_CREDENTIAL_HELPER not set)"
 else
 	pre_test
 	helper_test "$GIT_TEST_CREDENTIAL_HELPER"
@@ -29,11 +29,16 @@ else
 fi
 
 if test -z "$GIT_TEST_CREDENTIAL_HELPER_TIMEOUT"; then
-	say "# skipping external helper timeout tests"
+	say "# skipping external helper timeout tests (GIT_TEST_CREDENTIAL_HELPER_TIMEOUT not set)"
 else
 	pre_test
 	helper_test_timeout "$GIT_TEST_CREDENTIAL_HELPER_TIMEOUT"
 	post_test
 fi
 
+if test -z "$GIT_TEST_CREDENTIAL_HELPER" \
+    -o -z "$GIT_TEST_CREDENTIAL_HELPER_TIMEOUT"; then
+    skip_all="used to test external credential helpers"
+fi
+
 test_done
-- 
1.7.9.3.467.g8f1c7