Add regression test that an enum is correctly deserialized for an abs…

…ent tag

tests/protobuf_enumerated_missing.rs

@@ -0,0 +1,47 @@
+mod test_utils;
+
+use test_utils::*;
+
+asn_to_rust!(
+    r"MyDef DEFINITIONS AUTOMATIC TAGS ::=
+    BEGIN
+
+    ComplexType ::= SEQUENCE {
+        enum-one ENUMERATED {
+            A,
+            B,
+            C
+        },
+        enum-two ENUMERATEd {
+            AA,
+            BB,
+            CC
+        }
+    }
+
+    END"
+);
+
+#[test]
+#[cfg(feature = "protobuf")]
+fn test_missing_enum_one() {
+    assert_eq!(
+        ComplexType {
+            enum_one: ComplexTypeEnumOne::B,
+            enum_two: ComplexTypeEnumTwo::Aa,
+        },
+        deserialize_protobuf(&[8, 1],)
+    );
+}
+
+#[test]
+#[cfg(feature = "protobuf")]
+fn test_missing_enum_two() {
+    assert_eq!(
+        ComplexType {
+            enum_one: ComplexTypeEnumOne::A,
+            enum_two: ComplexTypeEnumTwo::Bb,
+        },
+        deserialize_protobuf(&[16, 1],)
+    );
+}