218     int iv = TEST_QUEUE_SINGLE_ELEMENT;  variable
219     queue->PushBack(iv);
277     int iv = TEST_QUEUE_SINGLE_ELEMENT;  variable
278     queue->PushBack(iv);
297     int iv = TEST_QUEUE_SINGLE_ELEMENT;  variable
298     int result = queue->PushBack(iv);
323     int iv = TEST_QUEUE_SINGLE_ELEMENT;  variable
324     result = queue->PushBack(iv);
343     int iv;  variable
344     int result = queue->PopFront(iv);
363     int iv = TEST_QUEUE_SINGLE_ELEMENT;  variable
364     queue->PushBack(iv);
365     int result = queue->PopFront(iv);
367     ASSERT_EQ(iv, TEST_QUEUE_SINGLE_ELEMENT);
391     int iv = 0;  variable
393         result = queue->PopFront(iv);
395         ASSERT_EQ(iv, i);
464     int iv;  variable
468         queue->PopFront(iv);
473     queue->PopFront(iv);