@Test
 @IntegrationRule.Enforce
 public void testMultipleParentURL() throws Exception {
   ClassLoader classLoader =
       new MultipleParentClassLoader.Builder().append(first, second, null).build();
   assertThat(classLoader.getResource(FOO), is(fooUrl));
   assertThat(classLoader.getResource(BAR), is(barFirstUrl));
   assertThat(classLoader.getResource(QUX), is(quxUrl));
   verify(first).getResource(FOO);
   verify(first).getResource(BAR);
   verify(first).getResource(QUX);
   verifyNoMoreInteractions(first);
   verify(second).getResource(QUX);
   verifyNoMoreInteractions(second);
 }
 @Before
 public void setUp() throws Exception {
   doReturn(Foo.class).when(first).loadClass(FOO);
   doReturn(BarFirst.class).when(first).loadClass(BAR);
   when(first.loadClass(QUX)).thenThrow(new ClassNotFoundException());
   when(first.loadClass(BAZ)).thenThrow(new ClassNotFoundException());
   doReturn(BarSecond.class).when(second).loadClass(BAR);
   doReturn(Qux.class).when(second).loadClass(QUX);
   when(second.loadClass(BAZ)).thenThrow(new ClassNotFoundException());
   fooUrl = new URL(SCHEME + FOO);
   barFirstUrl = new URL(SCHEME + BAR);
   barSecondUrl = new URL(SCHEME + BAZ);
   quxUrl = new URL(SCHEME + QUX);
   when(first.getResource(FOO)).thenReturn(fooUrl);
   when(first.getResource(BAR)).thenReturn(barFirstUrl);
   when(second.getResource(BAR)).thenReturn(barSecondUrl);
   when(second.getResource(QUX)).thenReturn(quxUrl);
   when(first.getResources(FOO)).thenReturn(new SingleElementEnumeration(fooUrl));
   when(first.getResources(BAR)).thenReturn(new SingleElementEnumeration(barFirstUrl));
   when(second.getResources(BAR)).thenReturn(new SingleElementEnumeration(barSecondUrl));
   when(second.getResources(QUX)).thenReturn(new SingleElementEnumeration(quxUrl));
 }