t5553: use local url for invalid fetch

We test how "fetch --set-upstream" behaves when given an invalid URL,
using the bogus URL "http://nosuchdomain.example.com". But finding out
that it is invalid requires an actual DNS lookup.

Reduce our dependency on external factors by using an invalid local
filesystem URL, which works just as well for our purposes.

Signed-off-by: Jeff King <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: peff

t/t5553-set-upstream.sh

@@ -73,10 +73,10 @@ test_expect_success 'fetch --set-upstream main:other does not set the branch oth
 	check_config_missing other2
 '
 
-test_expect_success 'fetch --set-upstream http://nosuchdomain.example.com fails with invalid url' '
+test_expect_success 'fetch --set-upstream ./does-not-exist fails with invalid url' '
 	# main explicitly not cleared, we check that it is not touched from previous value
 	clear_config other other2 &&
-	test_must_fail git fetch --set-upstream http://nosuchdomain.example.com &&
+	test_must_fail git fetch --set-upstream ./does-not-exist &&
 	check_config main upstream refs/heads/other &&
 	check_config_missing other &&
 	check_config_missing other2
@@ -143,10 +143,10 @@ test_expect_success 'pull --set-upstream upstream tag does not set the tag' '
 	check_config_missing three
 '
 
-test_expect_success 'pull --set-upstream http://nosuchdomain.example.com fails with invalid url' '
+test_expect_success 'pull --set-upstream ./does-not-exist fails with invalid url' '
 	# main explicitly not cleared, we check that it is not touched from previous value
 	clear_config other other2 three &&
-	test_must_fail git pull --set-upstream http://nosuchdomain.example.com &&
+	test_must_fail git pull --set-upstream ./does-not-exist &&
 	check_config main upstream refs/heads/other &&
 	check_config_missing other &&
 	check_config_missing other2 &&