ParameterConfig { public String getPlaceholder() { return placeholder; }  String getName(); String getDescription(); String getLabel(); String getPlaceholder(); String getDefaultValue(); String getClusterConfig(); boolean isRequired(); boolean isMasked();  }
@Test public void testGetPlaceholder() throws Exception { List<ParameterConfig> parameters = getParameterConfigs(); Assert.assertEquals(2, parameters.size()); Assert.assertEquals("Placeholder 1.", parameters.get(0).getPlaceholder()); Assert.assertNull(parameters.get(1).getPlaceholder()); }