def test_sane_chord_tree_single_unique_note(self, mock_frets,
mock_is_sane_configuration):
mock_frets.return_value = [(0, ('E', 2))]
mock_is_sane_configuration.return_value = True
notes = [('E', 2)]
expected = {(0, ('E', 2)) : {}}
result = notemappings._sane_chord_tree(notes, capo=0)
self.assertEqual(result, expected)
def test_sane_chord_tree_a5_fifth(self, mock_frets,
mock_is_sane_configuration):
a5_positions = [(17, ('E', 2)), (12, ('A', 3))]
e5_positions = [(19, ('A', 3)), (14, ('D', 3)), (9, ('G', 3))]
mock_frets.side_effect = [a5_positions, e5_positions, e5_positions]
# not the actual behaviour!
mock_is_sane_configuration.side_effect = [True, True, True, True, False, False]
notes = [('A', 4), ('E', 4)]
# read: options for E if A is on the low e string, a string, etc.
options = {(19, ('A', 3)) : {}, (14, ('D', 3)) : {}}
expected = {(17, ('E', 2)) : options}
self.assertEqual(notemappings._sane_chord_tree(notes, capo=0),
expected)