t4203: test check-mailmap command invocation

Test the command-line interface of check-mailmap.

(Actual .mailmap functionality is already covered by existing tests.)

Signed-off-by: Eric Sunshine <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: sunshineco

t/t4203-mailmap.sh

@@ -13,6 +13,11 @@ fuzz_blame () {
 }
 
 test_expect_success setup '
+	cat >contacts <<-\EOF &&
+	A U Thor <[email protected]>
+	nick1 <[email protected]>
+	EOF
+
 	echo one >one &&
 	git add one &&
 	test_tick &&
@@ -23,6 +28,44 @@ test_expect_success setup '
 	git commit --author "nick1 <[email protected]>" -m second
 '
 
+test_expect_success 'check-mailmap no arguments' '
+	test_must_fail git check-mailmap
+'
+
+test_expect_success 'check-mailmap arguments' '
+	cat >expect <<-\EOF &&
+	A U Thor <[email protected]>
+	nick1 <[email protected]>
+	EOF
+	git check-mailmap \
+		"A U Thor <[email protected]>" \
+		"nick1 <[email protected]>" >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'check-mailmap --stdin' '
+	cat >expect <<-\EOF &&
+	A U Thor <[email protected]>
+	nick1 <[email protected]>
+	EOF
+	git check-mailmap --stdin <contacts >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'check-mailmap --stdin arguments' '
+	cat >expect <<-\EOF &&
+	Internal Guy <[email protected]>
+	EOF
+	cat <contacts >>expect &&
+	git check-mailmap --stdin "Internal Guy <[email protected]>" \
+		<contacts >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'check-mailmap bogus contact' '
+	test_must_fail git check-mailmap bogus
+'
+
 cat >expect <<\EOF
 A U Thor (1):
       initial