/**
   * Creates a wrapper model class that contains all model classes as list of objects. This class is
   * used for storing test data
   */
  private void generateWrapperClassForTestData(
      List<String> generatedClassNames, StringTemplateGroup templateGroup) {
    Model model = new Model();
    model.setName("TestData");
    model.setDescription(
        "Class used to store all the test data. This should not be used for any development");
    List<ModelField> modelFields = new ArrayList<ModelField>();
    model.setFields(modelFields);
    for (String className : generatedClassNames) {
      ModelField aParam = new ModelField();
      aParam.setName(this.getNameGenerator().applyMethodNamingPolicy(className) + "List");
      aParam.setParamType(this.getDataTypeMappingProvider().getListReturnTypeSignature(className));
      modelFields.add(aParam);
    }

    List<String> imports = new ArrayList<String>();
    imports.addAll(this.config.getDefaultModelImports());
    imports.addAll(this.getDataTypeMappingProvider().getListIncludes());
    for (ModelField param : model.getFields()) {
      for (String importDef :
          param
              .getFieldDefinition(this.getDataTypeMappingProvider(), config, nameGenerator)
              .getImportDefinitions()) {
        if (!imports.contains(importDef)) {
          imports.add(importDef);
        }
      }
    }
    StringTemplate template = templateGroup.getInstanceOf(MODEL_OBJECT_TEMPLATE);
    template.setAttribute("fields", model.getFields());
    template.setAttribute("imports", imports);
    template.setAttribute("annotationPackageName", languageConfig.getAnnotationPackageName());
    template.setAttribute("extends", config.getDefaultModelBaseClass());
    template.setAttribute(PACKAGE_NAME, config.getModelPackageName());
    template.setAttribute("className", model.getGenratedClassName());
    File aFile =
        new File(
            languageConfig.getModelClassLocation()
                + model.getGenratedClassName()
                + languageConfig.getClassFileExtension());
    writeFile(aFile, template.toString(), "Wrapper class for test data file");
  }