@Test
public void thatCanCreateADefaultThreadManagerWithSameThreadQueuePolicy() {

    DefaultThreadManager defaultThreadManager = new DefaultThreadManager();
    Future future =  defaultThreadManager.enqueue(Threading.SAME_THREAD_POLICY, givenARunnable(mCallbackFlag));
    assertThat(mCallbackFlag.isFlagged()).isFalse();
    assertThat(future).isNotNull();
}