diff --git a/t/t7400-submodule-basic.sh b/t/t7400-submodule-basic.sh
index a989aafaf57..eae6a46ef3d 100755
--- a/t/t7400-submodule-basic.sh
+++ b/t/t7400-submodule-basic.sh
@@ -579,6 +579,16 @@ test_expect_success 'status should be "modified" after submodule commit' '
 	grep "^+$rev2" list
 '
 
+test_expect_success '"submodule --cached" command forms should be identical' '
+	git submodule status --cached >expect &&
+
+	git submodule --cached >actual &&
+	test_cmp expect actual &&
+
+	git submodule --cached status >actual &&
+	test_cmp expect actual
+'
+
 test_expect_success 'the --cached sha1 should be rev1' '
 	git submodule --cached status >list &&
 	grep "^+$rev1" list
diff --git a/t/t7422-submodule-output.sh b/t/t7422-submodule-output.sh
new file mode 100755
index 00000000000..3ac56c23f72
--- /dev/null
+++ b/t/t7422-submodule-output.sh
@@ -0,0 +1,169 @@
+#!/bin/sh
+
+test_description='submodule --cached, --quiet etc. output'
+
+. ./test-lib.sh
+. "$TEST_DIRECTORY"/lib-t3100.sh
+
+setup_sub () {
+	local d="$1" &&
+	shift &&
+	git $@ clone . "$d" &&
+	git $@ submodule add ./"$d"
+}
+
+normalize_status () {
+	sed -e 's/-g[0-9a-f]*/-gHASH/'
+}
+
+test_expect_success 'setup' '
+	test_commit A &&
+	test_commit B &&
+	setup_sub S  &&
+	setup_sub S.D &&
+	setup_sub S.C &&
+	setup_sub S.C.D &&
+	setup_sub X &&
+	git add S* &&
+	test_commit C &&
+
+	# recursive in X/
+	git -C X pull &&
+	GIT_ALLOW_PROTOCOL=file git -C X submodule update --init &&
+
+	# dirty p
+	for d in S.D X/S.D
+	do
+		echo dirty >S.D/A.t || return 1
+	done &&
+
+	# commit (for --cached)
+	for d in S.C* X/S.C*
+	do
+		git -C "$d" reset --hard A || return 1
+	done &&
+
+	# dirty
+	for d in S*.D X/S*.D
+	do
+		echo dirty >"$d/C2.t" || return 1
+	done &&
+
+	for ref in A B C
+	do
+		# Not different with SHA-1 and SHA-256, just (ab)usign
+		# test_oid_cache as a variable bag to avoid using
+		# $(git rev-parse ...).
+		oid=$(git rev-parse $ref) &&
+		test_oid_cache <<-EOF || return 1
+		$ref sha1:$oid
+		$ref sha256:$oid
+		EOF
+	done
+'
+
+for opts in "" "status"
+do
+	test_expect_success "git submodule $opts" '
+		sed -e "s/^>//" >expect <<-EOF &&
+		> $(test_oid B) S (B)
+		>+$(test_oid A) S.C (A)
+		>+$(test_oid A) S.C.D (A)
+		> $(test_oid B) S.D (B)
+		>+$(test_oid C) X (C)
+		EOF
+		git submodule $opts >actual.raw &&
+		normalize_status <actual.raw >actual &&
+		test_cmp expect actual
+	'
+done
+
+for opts in \
+	"status --recursive"
+do
+	test_expect_success "git submodule $opts" '
+		sed -e "s/^>//" >expect <<-EOF &&
+		> $(test_oid B) S (B)
+		>+$(test_oid A) S.C (A)
+		>+$(test_oid A) S.C.D (A)
+		> $(test_oid B) S.D (B)
+		>+$(test_oid C) X (C)
+		> $(test_oid B) X/S (B)
+		>+$(test_oid A) X/S.C (A)
+		>+$(test_oid A) X/S.C.D (A)
+		> $(test_oid B) X/S.D (B)
+		> $(test_oid B) X/X (B)
+		EOF
+		git submodule $opts >actual.raw &&
+		normalize_status <actual.raw >actual &&
+		test_cmp expect actual
+	'
+done
+
+for opts in \
+	"--quiet" \
+	"--quiet status" \
+	"status --quiet"
+do
+	test_expect_success "git submodule $opts" '
+		git submodule $opts >out &&
+		test_must_be_empty out
+	'
+done
+
+for opts in \
+	"--cached" \
+	"--cached status" \
+	"status --cached"
+do
+	test_expect_success "git submodule $opts" '
+		sed -e "s/^>//" >expect <<-EOF &&
+		> $(test_oid B) S (B)
+		>+$(test_oid B) S.C (B)
+		>+$(test_oid B) S.C.D (B)
+		> $(test_oid B) S.D (B)
+		>+$(test_oid B) X (B)
+		EOF
+		git submodule $opts >actual.raw &&
+		normalize_status <actual.raw >actual &&
+		test_cmp expect actual
+	'
+done
+
+for opts in \
+	"--cached --quiet" \
+	"--cached --quiet status" \
+	"--cached status --quiet" \
+	"--quiet status --cached" \
+	"status --cached --quiet"
+do
+	test_expect_success "git submodule $opts" '
+		git submodule $opts >out &&
+		test_must_be_empty out
+	'
+done
+
+for opts in \
+	"status --cached --recursive" \
+	"--cached status --recursive"
+do
+	test_expect_success "git submodule $opts" '
+		sed -e "s/^>//" >expect <<-EOF &&
+		> $(test_oid B) S (B)
+		>+$(test_oid B) S.C (B)
+		>+$(test_oid B) S.C.D (B)
+		> $(test_oid B) S.D (B)
+		>+$(test_oid B) X (B)
+		> $(test_oid B) X/S (B)
+		>+$(test_oid B) X/S.C (B)
+		>+$(test_oid B) X/S.C.D (B)
+		> $(test_oid B) X/S.D (B)
+		> $(test_oid B) X/X (B)
+		EOF
+		git submodule $opts >actual.raw &&
+		normalize_status <actual.raw >actual &&
+		test_cmp expect actual
+	'
+done
+
+test_done
