DefaultConfigValueEvaluator implements ConfigValueEvaluator { @Override public String toString() { return "DefaultConfigEvaluator{}"; }  @Override PropertyValue evaluateRawValue(String key, ConfigurationContext context); @Override Map<String, PropertyValue> evaluateRawValues(ConfigurationContext context); @Override String toString();  }
@Test public void testToString(){ assertThat(new DefaultConfigValueEvaluator().toString()).isNotNull(); }