1 files changed, 86 insertions, 0 deletions
diff --git a/t/t5546-receive-limits.sh b/t/t5546-receive-limits.sh
new file mode 100755
index 0000000..9fc9ba5
--- /dev/null
+++ b/t/t5546-receive-limits.sh
@@ -0,0 +1,86 @@
+#!/bin/sh
+
+test_description='check receive input limits'
+
+TEST_PASSES_SANITIZE_LEAK=true
+. ./test-lib.sh
+
+# Let's run tests with different unpack limits: 1 and 10000
+# When the limit is 1, `git receive-pack` will call `git index-pack`.
+# When the limit is 10000, `git receive-pack` will call `git unpack-objects`.
+
+validate_store_type () {
+	git -C dest count-objects -v >actual &&
+	case "$store_type" in
+	index)
+		grep "^count: 0$" actual ;;
+	unpack)
+		grep "^packs: 0$" actual ;;
+	esac || {
+		echo "store_type is $store_type"
+		cat actual
+		false;
+	}
+}
+
+test_pack_input_limit () {
+	store_type=$1
+
+	case "$store_type" in
+	index) unpack_limit=1 other_limit=10000 ;;
+	unpack) unpack_limit=10000 other_limit=1 ;;
+	esac
+
+	test_expect_success 'prepare destination repository' '
+		rm -fr dest &&
+		git --bare init dest
+	'
+
+	test_expect_success "set unpacklimit to $unpack_limit" '
+		git --git-dir=dest config receive.unpacklimit "$unpack_limit"
+	'
+
+	test_expect_success 'setting receive.maxInputSize to 512 rejects push' '
+		git --git-dir=dest config receive.maxInputSize 512 &&
+		test_must_fail git push dest HEAD
+	'
+
+	test_expect_success 'bumping limit to 4k allows push' '
+		git --git-dir=dest config receive.maxInputSize 4k &&
+		git push dest HEAD
+	'
+
+	test_expect_success 'prepare destination repository (again)' '
+		rm -fr dest &&
+		git --bare init dest
+	'
+
+	test_expect_success 'lifting the limit allows push' '
+		git --git-dir=dest config receive.maxInputSize 0 &&
+		git push dest HEAD
+	'
+
+	test_expect_success 'prepare destination repository (once more)' '
+		rm -fr dest &&
+		git --bare init dest
+	'
+
+	test_expect_success 'receive trumps transfer' '
+		git --git-dir=dest config receive.unpacklimit "$unpack_limit" &&
+		git --git-dir=dest config transfer.unpacklimit "$other_limit" &&
+		git push dest HEAD &&
+		validate_store_type
+	'
+
+}
+
+test_expect_success "create known-size (1024 bytes) commit" '
+	test-tool genrandom foo 1024 >one-k &&
+	git add one-k &&
+	test_commit one-k
+'
+
+test_pack_input_limit index
+test_pack_input_limit unpack
+
+test_done