Maria@39: # -*- coding: utf-8 -*-
Maria@39: """
Maria@39: Created on Fri Sep  1 19:11:52 2017
Maria@39: 
Maria@39: @author: mariapanteli
Maria@39: """
Maria@39: 
Maria@39: import pytest
Maria@39: 
Maria@39: import numpy as np
m@85: import os
Maria@39: 
Maria@39: import scripts.OPMellin as OPMellin
Maria@39: 
Maria@39: 
Maria@39: opm = OPMellin.OPMellin()
m@85: TEST_AUDIO_FILE = os.path.join(os.path.dirname(__file__), os.path.pardir, 
m@85:                                  'data', 'sample_dataset', 'Audio', 'mel_1_2_1.wav')
Maria@39: 
Maria@39: def test_load_audiofile():
m@85:     audiofile = TEST_AUDIO_FILE
Maria@39:     opm.load_audiofile(audiofile, segment=False)
Maria@39:     assert opm.y is not None and opm.sr is not None
Maria@39: 
Maria@39: 
Maria@39: def test_mel_spectrogram():
m@85:     audiofile = TEST_AUDIO_FILE
Maria@39:     opm.load_audiofile(audiofile, segment=False)
Maria@39:     opm.mel_spectrogram(y=opm.y, sr=opm.sr)
Maria@39:     # assume 40 mel bands
Maria@39:     assert opm.melspec.shape[0] == 40
Maria@39: 
Maria@39: 
Maria@39: def test_post_process_spec():
m@85:     audiofile = TEST_AUDIO_FILE
Maria@39:     opm.load_audiofile(audiofile, segment=False)
Maria@39:     opm.mel_spectrogram(y=opm.y, sr=opm.sr)
Maria@39:     melspec = opm.melspec
Maria@39:     opm.post_process_spec(melspec=melspec)
Maria@39:     proc_melspec = opm.melspec
Maria@39:     assert melspec.shape == proc_melspec.shape
Maria@39: 
Maria@39: 
Maria@39: def test_onset_patterns_n_frames():
m@85:     audiofile = TEST_AUDIO_FILE
Maria@39:     opm.load_audiofile(audiofile, segment=False)
Maria@39:     opm.mel_spectrogram(y=opm.y, sr=opm.sr)
Maria@39:     opm.onset_patterns(melspec=opm.melspec, melsr=opm.melsr)
Maria@39:     assert opm.op.shape[2] == np.round(((opm.melspec.shape[1] / opm.melsr) - opm.win2sec) * 2.)
Maria@39: 
Maria@39: 
Maria@39: def test_onset_patterns_n_bins():
m@85:     audiofile = TEST_AUDIO_FILE
Maria@39:     opm.load_audiofile(audiofile, segment=False)
Maria@39:     opm.mel_spectrogram(y=opm.y, sr=opm.sr)
Maria@39:     opm.onset_patterns(melspec=opm.melspec, melsr=opm.melsr)
Maria@39:     assert opm.op.shape[0] == 40    
Maria@39: 
Maria@39: 
Maria@39: def test_post_process_op():
m@85:     audiofile = TEST_AUDIO_FILE
Maria@39:     opm.load_audiofile(audiofile, segment=False)
Maria@39:     opm.mel_spectrogram(y=opm.y, sr=opm.sr)
Maria@39:     opm.onset_patterns(melspec=opm.melspec, melsr=opm.melsr)
Maria@39:     op = opm.op
Maria@39:     opm.post_process_op()
Maria@39:     proc_op = opm.op
Maria@39:     assert op.shape == proc_op.shape