t/: add test case for Issue #129 from Oleg Efimov

t/generated-code2/test-generated-code2.c

@@ -1406,6 +1406,27 @@ test_optional_default_values (void)
   foo__default_optional_values__free_unpacked (mess2, NULL);
 }
 
+static void
+assert_optional_lowercase_enum_default_value_is_default (Foo__LowerCase *mess)
+{
+  assert (!mess->has_value);
+  assert (mess->value == 2);
+}
+
+static void
+test_optional_lowercase_enum_default_value (void)
+{
+  Foo__LowerCase mess = FOO__LOWER_CASE__INIT;
+  Foo__LowerCase *mess2;
+  size_t len; uint8_t *data;
+  assert_optional_lowercase_enum_default_value_is_default (&mess);
+  mess2 = test_compare_pack_methods (&mess.base, &len, &data);
+  assert (len == 0);            /* no non-default values */
+  free (data);
+  assert_optional_lowercase_enum_default_value_is_default (mess2);
+  foo__lower_case__free_unpacked (mess2, NULL);
+}
+
 static void
 test_field_merge (void)
 {
@@ -1672,6 +1693,8 @@ static Test tests[] =
   { "test required default values", test_required_default_values },
   { "test optional default values", test_optional_default_values },
 
+  { "test optional lowercase enum default value", test_optional_lowercase_enum_default_value },
+
   { "test field merge", test_field_merge },
 
   { "test free unpacked", test_alloc_free_all },

t/test-full.proto

@@ -207,6 +207,13 @@ message DefaultOptionalValues {
   optional string v_string = 7 [default = "hi mom\n"];
   optional bytes v_bytes   = 8 [default = "a \0 character"];
 }
+message LowerCase {
+  enum CaseEnum {
+    UPPER = 1;
+    lower = 2;
+  }
+  optional CaseEnum value = 1 [default = lower];
+}
 message AllocValues {
   optional bytes o_bytes = 1;
   repeated string r_string = 2;