@Test
public void testGetAttributeString() {

	assertUninitialized(AttributeType.BOOLEAN,
			this.container.getAttribute("A"));  //$NON-NLS-1$
	assertEquals(new AttributeValueImpl(1),
			this.container.getAttribute("B"));  //$NON-NLS-1$
	assertUninitialized(AttributeType.URL,
			this.container.getAttribute("C"));  //$NON-NLS-1$
	assertUninitialized(AttributeType.STRING,
			this.container.getAttribute("D"));  //$NON-NLS-1$
	assertUninitialized(AttributeType.OBJECT,
			this.container.getAttribute("E"));  //$NON-NLS-1$
	assertNull(this.container.getAttribute("F"));  //$NON-NLS-1$
	assertUninitialized(AttributeType.STRING,
			this.container.getAttribute("Z1"));  //$NON-NLS-1$
	assertUninitialized(AttributeType.STRING,
			this.container.getAttribute("Z2"));  //$NON-NLS-1$
	assertUninitialized(AttributeType.STRING,
			this.container.getAttribute("Z3"));  //$NON-NLS-1$
	assertNull(this.container.getAttribute("Z4"));  //$NON-NLS-1$
}