@Test
public void decimal() throws Exception {

    prepareConfig("1.5");
    assertEquals(1.5, this.config.getDecimal(XenonConfigurationTest.class, this.foundProperty, 20), 0.001);
    assertEquals(7, this.config.getDecimal(XenonConfigurationTest.class, this.undefined, 7), 0.001);
    prepareConfig("hello");
    assertEquals(7, this.config.getDecimal(XenonConfigurationTest.class, this.foundProperty, 7), 0.001);
}