transport: die if server options are unsupported

diff --git a/t/t4015-diff-whitespace.sh b/t/t4015-diff-whitespace.sh
index 9d6f88b07fe1d24081758827b2d2025a05ade9a2..ab4670d23653eca46292b13ef1559584aae5c3a6 100755 (executable)
--- a/t/t4015-diff-whitespace.sh
+++ b/t/t4015-diff-whitespace.sh
@@ -1894,6 +1894,24 @@ test_expect_success 'compare whitespace delta across moved blocks' '
        test_cmp expected actual
 '
 
+test_expect_success 'bogus settings in move detection erroring out' '
+       test_must_fail git diff --color-moved=bogus 2>err &&
+       test_i18ngrep "must be one of" err &&
+       test_i18ngrep bogus err &&
+
+       test_must_fail git -c diff.colormoved=bogus diff 2>err &&
+       test_i18ngrep "must be one of" err &&
+       test_i18ngrep "from command-line config" err &&
+
+       test_must_fail git diff --color-moved-ws=bogus 2>err &&
+       test_i18ngrep "possible values" err &&
+       test_i18ngrep bogus err &&
+
+       test_must_fail git -c diff.colormovedws=bogus diff 2>err &&
+       test_i18ngrep "possible values" err &&
+       test_i18ngrep "from command-line config" err
+'
+
 test_expect_success 'compare whitespace delta incompatible with other space options' '
        test_must_fail git diff \
                --color-moved-ws=allow-indentation-change,ignore-all-space \