empty IMPORTS section is allowed

diff --git a/tests/121-empty-imports-OK.asn1.-EF b/tests/121-empty-imports-OK.asn1.-EF
new file mode 100644
index 0000000..a5ad681
--- /dev/null
+++ b/tests/121-empty-imports-OK.asn1.-EF
@@ -0,0 +1,8 @@
+ModuleEmptyIMPORTS { iso org(3) dod(6) internet(1) private(4) enterprise(1)
+	spelio(9363) software(1) asn1c(5) test(1) 121 }
+DEFINITIONS AUTOMATIC TAGS ::=
+BEGIN
+
+Type ::= INTEGER
+
+END