def test_empty_sequence_merge(self):
        s1 = self.make_sequence()
        from sebastian.core import OSequence
        s2 = OSequence([])
        merged = s1 // s2
        from sebastian.core import OFFSET_64, DURATION_64, MIDI_PITCH
        self.assertEqual(merged._elements, [
            {MIDI_PITCH: 50, OFFSET_64: 16, DURATION_64: 17},
            {MIDI_PITCH: 53, OFFSET_64: 19, DURATION_64: 20}
        ])
{% resource_calendar_events 'id' 'start_date' 'end_date' as events %}
dataset/ETHPy150Open jtauber/sebastian/tests/test_sequences.py/TestSequences.test_empty_sequence_merge--crossover with--dataset/ETHPy150Open zorna/zorna/zorna/calendars/templatetags/calendars_tags.py/resource_calendar_events