Re: [PATCH v2 08/22] pickaxe tests: test for -G, -S and --find-object incompatibility

Add a test for the options sanity check added in 5e505257f2 (diff:
properly error out when combining multiple pickaxe options,
2018-01-04).

Signed-off-by: Ævar Arnfjörð Bjarmason <redacted>
---
 t/t4209-log-pickaxe.sh | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/t/t4209-log-pickaxe.sh b/t/t4209-log-pickaxe.sh
index c6b4751d5b6..5ad4fad964c 100755
--- a/t/t4209-log-pickaxe.sh
+++ b/t/t4209-log-pickaxe.sh

@@ -55,6 +55,17 @@ test_expect_success setup '
 	git rev-parse --verify HEAD >expect_second
 '
 
+test_expect_success 'usage' '
+	test_expect_code 128 git log -Gregex -Sstring 2>err &&
+	test_i18ngrep "mutually exclusive" err &&
+
+	test_expect_code 128 git log -Gregex --find-object=HEAD 2>err &&
+	test_i18ngrep "mutually exclusive" err &&
+
+	test_expect_code 128 git log -Gstring --find-object=HEAD 2>err &&
+	test_i18ngrep "mutually exclusive" err

+'
+
 test_log	expect_initial	--grep initial
 test_log	expect_nomatch	--grep InItial
 test_log_icase	expect_initial	--grep InItial