增加单元测试 + 修复BUG

run.go

@@ -128,11 +128,21 @@ func validate(sourceData []byte, val gjson.Result, rule *define.FieldRule) (any,
 		// TODO : 验证有条件必传
 		inputVal = rule.DefaultValue
 	} else {
-		if inputVal == nil {
-			if !rule.AllowNil {
-				return nil, fmt.Errorf("%v : field value is nil, but not allowed", rule.Path)
+		if nil == inputVal {
+			if rule.IsRequired {
+				return nil, fmt.Errorf("%v : data is required, but get nil", rule.Path)
+			}
+			if rule.DisableAutoConvert {
+				inputVal = rule.DefaultValue
+			} else {
+				inputVal = strings.TrimSpace(rule.DefaultValue)
+			}
+		} else {
+			if !rule.DisableAutoConvert {
+				if inputValStr, ok := inputVal.(string); ok {
+					inputVal = inputValStr
+				}
 			}
-			inputVal = rule.DefaultValue
 		}
 	}