val a1 = client.newCall(newRequest("http://a/1"))
    val a2 = client.newCall(newRequest("http://a/2"))
    val a3 = client.newCall(newRequest("http://a/3"))
    val a4 = client.newCall(newRequest("http://a/4"))
    val a5 = client.newCall(newRequest("http://a/5"))
    a1.enqueue(callback)
    a2.enqueue(callback)
    a3.enqueue(callback)
    a4.enqueue(callback)
    a5.enqueue(callback)

        UniAddress a3 = mock(UniAddress.class);
        when(nsc.getAllByName("server", true)).thenReturn(new Address[] { a2, a3 });
        SmbResourceLocatorImpl l3 = locator("smb://server/");
        assertSame(a2, l3.getAddress());
        verify(nsc, times(1)).getAllByName("server", true);
        assertTrue(l3.hasNextAddress());
        assertSame(a3, l3.getNextAddress());