test-lib: Make the test_external_* functions TAP-aware

diff --git a/t/t1300-repo-config.sh b/t/t1300-repo-config.sh
index f11f98c3ce7e35f61d06542ce707d61b98079fda..64f05080b65c2b9506d1e34748b47ee721026aef 100755 (executable)
--- a/t/t1300-repo-config.sh
+++ b/t/t1300-repo-config.sh
@@ -824,4 +824,12 @@ test_expect_success 'check split_cmdline return' "
        test_must_fail git merge master
        "
 
+test_expect_success 'git -c "key=value" support' '
+       test "z$(git -c name=value config name)" = zvalue &&
+       test "z$(git -c core.name=value config core.name)" = zvalue &&
+       test "z$(git -c CamelCase=value config camelcase)" = zvalue &&
+       test "z$(git -c flag config --bool flag)" = ztrue &&
+       test_must_fail git -c core.name=value config name
+'
+
 test_done