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import os
import math
import pytest
from pyo import *
class TestInitFunctions:
def test_getPyoKeywords(self):
kwds = getPyoKeywords()
assert type(kwds) is list
assert "PyoObject" in kwds
assert "SineLoop" in kwds
assert "Particle" in kwds
assert len(kwds) == 368
def test_getPyoExamples(self):
examples = getPyoExamples(fullpath=True)
for cat in examples:
for f in examples[cat]:
assert os.path.isfile(f)
root = os.path.split(os.path.split(examples['x01-intro'][0])[0])[0]
examples = getPyoExamples()
for cat in examples:
for f in examples[cat]:
assert os.path.isfile(os.path.join(root, cat, f))
@pytest.mark.usefixtures("audio_server")
class TestSoundfileFunctions:
def test_sndinfo(self):
path = os.path.join(SNDS_PATH, "transparent.aif")
info = sndinfo(path)
assert info[0] == 29877 # number of samples
assert round(info[1], 5) == 0.67748 # duration in sec
assert info[2] == 44100.0 # sampling rate
assert info[3] == 1 # number of channels
assert info[4] == 'AIFF' # file format
assert info[5] == '16 bit int' # sample type
def test_savefile(self):
path = os.path.join(os.path.expanduser("~"), "temporary_soundfile.wav")
sr = 44100
dur = 1
samples = [math.sin(math.pi * 2 * i / sr * dur) for i in range(sr)]
savefile(samples, path, sr=sr, channels=1, fileformat=0, sampletype=3)
# check saved file header values.
info = sndinfo(path)
assert info[0] == 44100 # number of samples
assert round(info[1], 5) == 1.0 # duration in sec
assert info[2] == 44100.0 # sampling rate
assert info[3] == 1 # number of channels
assert info[4] == 'WAVE' # file format
assert info[5] == '32 bit float' # sample type
# reload the sound and compare with the original waveform.
table = SndTable(path)
assert sr == table.getSize()
sum = 0
for i in range(sr):
sum += samples[i] - table.get(i)
assert math.isclose(sum, 0.0, abs_tol=0.000000001)
os.remove(path)
def test_savefileFromTable(self):
path = os.path.join(SNDS_PATH, "transparent.aif")
info = sndinfo(path)
ori = SndTable(path)
outpath = os.path.join(os.path.expanduser("~"), "temporary_soundfile.wav")
savefileFromTable(ori, outpath, fileformat=0, sampletype=3)
# check saved file header values.
info2 = sndinfo(outpath)
assert info[0] == info2[0] # number of samples
assert info[1] == info2[1] # duration in sec
assert info[2] == info2[2] # sampling rate
assert info[3] == info2[3] # number of channels
# reload the sound and compare with the original waveform.
table = SndTable(outpath)
sum = 0
for i in range(table.getSize()):
sum += ori.get(i) - table.get(i)
assert math.isclose(sum, 0.0, abs_tol=0.000000001)
os.remove(outpath)
@pytest.mark.usefixtures("audio_server")
class TestResamplingFunctions:
def test_upsamp(self):
home = os.path.expanduser('~')
path = os.path.join(SNDS_PATH, "transparent.aif")
nsamps = sndinfo(path)[0]
sr = sndinfo(path)[2]
# upsample a signal 3 times
upfile = os.path.join(home, 'trans_upsamp_3.aif')
upsamp(path, upfile, 3, 256)
info = sndinfo(upfile)
assert info[2] == (sr * 3)
assert info[0] == (nsamps * 3)
os.remove(upfile)
def test_downsamp(self):
home = os.path.expanduser('~')
path = os.path.join(SNDS_PATH, "transparent.aif")
nsamps = sndinfo(path)[0]
sr = sndinfo(path)[2]
# downsample the upsampled signal 4 times
downfile = os.path.join(home, 'trans_downsamp_4.aif')
downsamp(path, downfile, 4, 256)
info = sndinfo(downfile)
assert info[2] == (sr / 4)
assert math.isclose(info[0], nsamps / 4, abs_tol=1.0)
os.remove(downfile)
@pytest.mark.usefixtures("audio_server")
class TestConversionFunctions:
def test_midiToHz(self):
# test with a number as arg
in_num = 48
out_num = midiToHz(in_num)
assert isinstance(out_num, (int, float))
assert math.isclose(out_num, 130.8128, abs_tol=0.001)
# test with a tuple as arg
in_tuple = (48, 52, 55)
out_tuple = midiToHz(in_tuple)
assert type(out_tuple) is tuple
assert math.isclose(out_tuple[0], 130.8128, abs_tol=0.001)
assert math.isclose(out_tuple[1], 164.8138, abs_tol=0.001)
assert math.isclose(out_tuple[2], 195.9977, abs_tol=0.001)
# test with a list as arg
in_list = [48, 52, 55]
out_list = midiToHz(in_list)
assert type(out_list) is list
assert math.isclose(out_list[0], 130.8128, abs_tol=0.001)
assert math.isclose(out_list[1], 164.8138, abs_tol=0.001)
assert math.isclose(out_list[2], 195.9977, abs_tol=0.001)
def test_midiToTranspo(self):
# test with a number as arg
in_num = 60
out_num = midiToTranspo(in_num)
assert isinstance(out_num, (int, float))
assert out_num == 1.0
# test with a tuple as arg
in_tuple = (48, 60, 72)
out_tuple = midiToTranspo(in_tuple)
assert type(out_tuple) is tuple
assert math.isclose(out_tuple[0], 0.5, abs_tol=0.00001)
assert out_tuple[1] == 1.0
assert math.isclose(out_tuple[2], 2.0, abs_tol=0.00001)
# test with a list as arg
in_list = [48, 60, 72]
out_list = midiToTranspo(in_list)
assert type(out_list) is list
assert math.isclose(out_list[0], 0.5, abs_tol=0.00001)
assert out_list[1] == 1.0
assert math.isclose(out_list[2], 2.0, abs_tol=0.00001)
def test_sampsToSec(self):
# test with a number as arg
in_num = 48000
out_num = sampsToSec(in_num)
assert isinstance(out_num, (int, float))
assert out_num == 1.0
# test with a tuple as arg
in_tuple = (24000, 48000, 96000)
out_tuple = sampsToSec(in_tuple)
assert type(out_tuple) is tuple
assert out_tuple[0] == 0.5
assert out_tuple[1] == 1.0
assert out_tuple[2] == 2.0
# test with a list as arg
in_list = [24000, 48000, 96000]
out_list = sampsToSec(in_list)
assert type(out_list) is list
assert out_list[0] == 0.5
assert out_list[1] == 1.0
assert out_list[2] == 2.0
def test_secToSamps(self):
# test with a number as arg
in_num = 1.0
out_num = secToSamps(in_num)
assert isinstance(out_num, (int, float))
assert out_num == 48000
# test with a tuple as arg
in_tuple = (0.5, 1.0, 2.0)
out_tuple = secToSamps(in_tuple)
assert type(out_tuple) is tuple
assert out_tuple[0] == 24000
assert out_tuple[1] == 48000
assert out_tuple[2] == 96000
# test with a list as arg
in_list = [0.5, 1.0, 2.0]
out_list = secToSamps(in_list)
assert type(out_list) is list
assert out_list[0] == 24000
assert out_list[1] == 48000
assert out_list[2] == 96000
def test_beatToDur(self):
# test with a number as arg
bpm = 60
in_num = 1
out_num = beatToDur(in_num, bpm)
assert isinstance(out_num, (int, float))
assert out_num == 1.0
# test with a tuple as arg
in_tuple = (1 / 2, 1, 2)
out_tuple = beatToDur(in_tuple, bpm)
assert type(out_tuple) is tuple
assert out_tuple[0] == 0.5
assert out_tuple[1] == 1.0
assert out_tuple[2] == 2.0
# test with a list as arg
in_list = [1 / 2, 1, 2]
out_list = beatToDur(in_list, bpm)
assert type(out_list) is list
assert out_list[0] == 0.5
assert out_list[1] == 1.0
assert out_list[2] == 2.0
def test_linToCosCurve(self):
n = 512
l = [(0,0), (0.5, 1), (1,0)]
pts = linToCosCurve(l, yrange=[0, 1], totaldur=1, points=n)
for i in range(512):
v = -0.5 * math.cos(2 * math.pi * i / n) + 0.5
assert math.isclose(pts[i][1], v, abs_tol=0.000001)
log10ymin = math.log10(0.001)
log10ymax = math.log10(1.0)
l = [(0,0.001), (0.5, 1), (1,0.001)]
pts = linToCosCurve(l, yrange=[0.001, 1], totaldur=1, points=n, log=True)
for i in range(512):
v = pow(10, (-0.5 * math.cos(2 * math.pi * i / n) + 0.5) * (log10ymax - log10ymin) + log10ymin)
assert math.isclose(pts[i][1], v, abs_tol=0.000001)
def test_rescale(self):
# test with a number as arg
in_num = 0.0
out_num = rescale(in_num, xmin=-1.0, xmax=1.0, ymin=0.0, ymax=1.0, xlog=False, ylog=False)
assert isinstance(out_num, (int, float))
assert out_num == 0.5
log10ymin = math.log10(0.001)
log10ymax = math.log10(1.0)
out_num = rescale(in_num, xmin=-1.0, xmax=1.0, ymin=0.001, ymax=1.0, xlog=False, ylog=True)
assert math.isclose(out_num, pow(10, 0.5 * (log10ymax - log10ymin) + log10ymin), abs_tol=0.000001)
# How to test xlog=True ?
# test with a list as arg
# def test_floatmap(self):
# pass
# def test_distanceToSegment(self):
# pass
# def test_reducePoints(self):
# pass
# class TestServerQueriesFunctions:
# def test_serverCreated(self):
# assert serverCreated() == False
# s = Server()
# assert serverCreated() == True
# def test_serverBooted(self):
# s = Server(audio="manual")
# assert serverBooted() == False
# s.boot()
# assert serverBooted() == True
# s.shutdown()
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