def test_scale(self):
scale = ChromaticScale.get_chromatic_scale(
ChromaticScale.parse_notation("0:9"),
ChromaticScale.parse_notation("8:0"))
start = ChromaticScale.location_to_index((0, 9))
end = ChromaticScale.location_to_index((8, 0)) + 1
for i in range(start, end):
logging.info('{0}{1} {1}'.format(
i, ChromaticScale.index_to_location(i), scale[i - start]))
assert is_close(scale[ChromaticScale.location_to_index((4, 9)) - start], 440.0), \
"Error A:4 = {0} should be 440.0".format(scale[ChromaticScale.location_to_index((4, 9)) - start])
assert is_close(scale[ChromaticScale.location_to_index((4, 0)) - start], 261.625565301), \
"Error C:4 = {0} should be 261.625565301".format(scale[ChromaticScale.location_to_index((4, 0)) - start])
def test_book_example(self):
location = ChromaticScale.parse_notation("4:9")
print(location)
index = ChromaticScale.location_to_index(location)
print(index)
loc = ChromaticScale.index_to_location(index)
print(loc)
def test_parse_chromatic_location(self):
for i in range(0, 12):
s = str(4) + ':' + str(i)
location = ChromaticScale.parse_notation(s)
assert location[0] == 4 and location[1] == i