private void checkString(T instance) { assertThat( instance.toString(), CoreMatchers.startsWith( type.getCanonicalName().substring(type.getPackage().getName().length() + 1) + "{")); assertThat(instance.toString(), endsWith("}")); Class<?> currentType = type; do { for (Field field : type.getDeclaredFields()) { if (!field.isSynthetic() && !Modifier.isStatic(field.getModifiers()) && !ignoredFields.contains(field.getName())) { assertThat(instance.toString(), containsString(field.getName())); } } } while ((currentType = currentType.getSuperclass()) != Object.class); }