def test_advance_time(self):

		testDataContent = [
		  '648:abcdefghi',
		  '517:QjhWkizN5t',
		  '323:dwcIY99gTN1',
		  '653:UlfY2UvMfeuX'
		]
		data1 = DAO(testDataContent)

		with pytest.raises(Exception):
			data1.advance_time('nonexistent', '30')

		data1.advance_time('abcdefghi', '30')

		assert data1.find('abcdefghi').tasktime == '678'