def test_middle_e(self, mock_compare_notes):
mock_compare_notes.side_effect = [-1, 1]
note = ('E', 3)
expected = ('E', 2)
self.assertEqual(notemappings._lowest_string_with(note), expected)
calls = [call(('E', 2), note), call(('E', 4), note)]
mock_compare_notes.assert_has_calls(calls)
def test_low_e_open_string(self, mock_compare_notes):
mock_compare_notes.side_effect = [0, 1]
note = ('E', 2)
expected = tuple(note)
self.assertEqual(notemappings._lowest_string_with(note), expected)
calls = [call(('E', 2), note), call(('E', 4), note)]
mock_compare_notes.assert_has_calls(calls)
def test_d_5(self, mock_compare_notes):
mock_compare_notes.side_effect = [-1] * 5 + [1]
note = ('D', 5)
expected = ('D', 3)
self.assertEqual(notemappings._lowest_string_with(note), expected)
calls = [call(('E', 2), note), call(('E', 4), note),
call(('A', 2), note), call(('A', 4), note),
call(('D', 3), note), call(('D', 5), note)]
mock_compare_notes.assert_has_calls(calls)
def test_g_5(self, mock_compare_notes):
mock_compare_notes.side_effect = [-1] * 9 + [1]
note = ('G', 5)
expected = ('B', 3)
self.assertEqual(notemappings._lowest_string_with(note), expected)
calls = [call(('E', 2), note), call(('D', 4), note),
call(('A', 3), note), call(('G', 4), note),
call(('D', 3), note), call(('C', 5), note),
call(('G', 3), note), call(('F', 5), note),
call(('B', 4), note), call(('A', 6), note)]
def test_off_the_chart(self, mock_compare_notes):
mock_compare_notes.side_effect = [-1] * 12
note = ('E', 8)
self.assertIsNone(notemappings._lowest_string_with(note))
