func TestIterEmpty(t *testing.T) {
om := New(nil)
it := itertools.NewIterator(om)
assert.Panics(t, func() { it.Value() })
assert.False(t, it.Next())
it.Stop()
}
func TestNextAfterIterFinished(t *testing.T) {
var pb PriorityBitmap
pb.Set(0, 0)
it := itertools.NewIterator(&pb)
assert.True(t, it.Next())
assert.False(t, it.Next())
assert.False(t, it.Next())
}
func TestEmptyBitmap(t *testing.T) {
var bm Bitmap
assert.False(t, bm.Contains(0))
bm.Remove(0)
it := itertools.NewIterator(&bm)
assert.Panics(t, func() { it.Value() })
assert.False(t, it.Next())
}
func TestRemoveWhileIterating(t *testing.T) {
var pb PriorityBitmap
pb.Set(0, 0)
pb.Set(1, 1)
it := itertools.NewIterator(&pb)
go it.Stop()
pb.Remove(0)
time.Sleep(time.Millisecond)
// This should return an empty list, as the iterator was stopped before
// Next was called.
assert.EqualValues(t, []interface{}(nil), itertools.IteratorAsSlice(it))
}
func TestEmpty(t *testing.T) {
var pb PriorityBitmap
it := itertools.NewIterator(&pb)
assert.Panics(t, func() { it.Value() })
assert.False(t, it.Next())
}