diff --git a/test/input.c b/test/input.c
index a0af325..61649ee 100644
--- a/test/input.c
+++ b/test/input.c
@@ -21,6 +21,27 @@ TEST one_pass(void) {
 	PASS();
 }
 
+TEST line_limit(void) {
+	struct libscomm_input in;
+	struct libscomm_line l;
+	char s[LIBSCOMM_MAXBUF + 1];
+	char *p = s;
+	int i;
+
+	for (i = 0; i < LIBSCOMM_MAXBUF - 1; i++) {
+		s[i] = (i + 1) % 64 ? 'a' : '\t';
+	}
+	s[LIBSCOMM_MAXBUF - 1] = '\n';
+	s[LIBSCOMM_MAXBUF] = 0;
+
+	if (GREATEST_IS_VERBOSE())
+		fprintf(stderr, "%s", s);
+
+	libscomm_reset(&in);
+	ASSERT_EQ(libscomm_read(&in, &p, &l), LIBSCOMM_COMPLETE);
+	PASS();
+}
+
 TEST single_arg_too_large(void) {
 	struct libscomm_input in;
 	struct libscomm_line l;
@@ -72,6 +93,7 @@ GREATEST_MAIN_DEFS();
 int main(int argc, char *argv[]) {
 	GREATEST_MAIN_BEGIN();
 	RUN_TEST(one_pass);
+	RUN_TEST(line_limit);
 	RUN_TEST(single_arg_too_large);
 	RUN_TEST(arg_limit);
 	GREATEST_MAIN_END();