@Test
public void fillAttributeWithEmptyValue() throws Exception {

	System.out.println("fillAttributeWithEmptyValue()");
	final Attribute attrToReturn = new Attribute();
	when(ps.getPerunBl().getAttributesManagerBl().getAttribute(any(PerunSession.class), any(Resource.class), anyString())).thenReturn(attrToReturn);
	final Attribute attrResult = defShellAttr.fillAttribute(ps, new Resource(), new Attribute());
	assertNull("Atribut.getValue() ma byt null", attrResult.getValue());
}