@Test
public void testEvaluteRawValue() {

    Configuration config = Configuration.current();
    DefaultConfigValueEvaluator instance = new DefaultConfigValueEvaluator();
    PropertyValue result = instance.evaluateRawValue("confkey1", config.getContext());
    assertThat(result.getValue()).isEqualTo("javaconf-value1");
    result = instance.evaluateRawValue("missing", config.getContext());
    assertThat(result).isNull();
}