public void returns_all_channels_going_forward() {
ChannelIterator it = tv.iterator();
int i = 0;
while (it.hasNext()) {
String currentChannel = it.currentChannel();
Assert.assertEquals(channels.get(i), currentChannel);
i++;
it.next();
}
}
public void returns_all_channels_going_backwards() {
ChannelIterator it = tv.iterator();
it.setPosition(2);
int i = 2;
while (it.hasPrevious()) {
String currentChannel = it.currentChannel();
Assert.assertEquals(channels.get(i), currentChannel);
i--;
it.previous();
}
}
public void returns_first_channel() {
ChannelIterator it = tv.iterator();
String currentChannel = it.currentChannel();
Assert.assertEquals("cnn", currentChannel);
}
