#! /usr/bin/env python from numpy.testing import TestCase, assert_equalfrom aubio import slice_source_at_stampsfrom utils import count_files_in_directory, get_default_test_soundfrom utils import count_samples_in_directory, count_samples_in_file import tempfileimport shutil n_slices = 4 class aubio_slicing_test_case(TestCase):     def setUp(self):        self.source_file = get_default_test_sound(self)        self.output_dir = tempfile.mkdtemp(suffix = 'aubio_slicing_test_case')     def test_slice_start_only(self):        regions_start = [i*1000 for i in range(n_slices)]        slice_source_at_stamps(self.source_file, regions_start, output_dir = self.output_dir)     def test_slice_start_only_no_zero(self):        regions_start = [i*1000 for i in range(1, n_slices)]        slice_source_at_stamps(self.source_file, regions_start,                output_dir = self.output_dir, create_first=True)     def test_slice_start_beyond_end(self):        regions_start = [i*1000 for i in range(1, n_slices)]        regions_start += [count_samples_in_file(self.source_file) + 1000]        slice_source_at_stamps(self.source_file, regions_start,                output_dir = self.output_dir, create_first=True)     def test_slice_start_every_blocksize(self):        hopsize = 200        regions_start = [i*hopsize for i in range(0, n_slices)]        slice_source_at_stamps(self.source_file, regions_start, output_dir = self.output_dir,                hopsize = 200)     def test_slice_start_every_half_blocksize(self):        hopsize = 200        regions_start = [i*hopsize//2 for i in range(0, n_slices)]        slice_source_at_stamps(self.source_file, regions_start,                output_dir = self.output_dir, hopsize = 200)     def tearDown(self):        original_samples = count_samples_in_file(self.source_file)        written_samples = count_samples_in_directory(self.output_dir)        total_files = count_files_in_directory(self.output_dir)        assert_equal(n_slices, total_files,            "number of slices created different from expected")        assert_equal(written_samples, original_samples,            "number of samples written different from number of original samples")        shutil.rmtree(self.output_dir) class aubio_slicing_with_ends_test_case(TestCase):     def setUp(self):        self.source_file = get_default_test_sound(self)        self.output_dir = tempfile.mkdtemp(suffix = 'aubio_slicing_test_case')     def test_slice_start_and_ends_no_gap(self):        regions_start = [i*1000 for i in range(n_slices)]        regions_ends = [start - 1 for start in regions_start[1:]] + [1e120]        slice_source_at_stamps(self.source_file, regions_start, regions_ends,                output_dir = self.output_dir)        original_samples = count_samples_in_file(self.source_file)        written_samples = count_samples_in_directory(self.output_dir)        total_files = count_files_in_directory(self.output_dir)        assert_equal(n_slices, total_files,            "number of slices created different from expected")        assert_equal(written_samples, original_samples,            "number of samples written different from number of original samples")     def test_slice_start_and_ends_200_gap(self):        regions_start = [i*1000 for i in range(n_slices)]        regions_ends = [start + 199 for start in regions_start]        slice_source_at_stamps(self.source_file, regions_start, regions_ends,                output_dir = self.output_dir)        expected_samples = 200 * n_slices        written_samples = count_samples_in_directory(self.output_dir)        total_files = count_files_in_directory(self.output_dir)        assert_equal(n_slices, total_files,            "number of slices created different from expected")        assert_equal(written_samples, expected_samples,            "number of samples written different from number of original samples")     def test_slice_start_and_ends_overlaping(self):        regions_start = [i*1000 for i in range(n_slices)]        regions_ends = [start + 1199 for start in regions_start]        slice_source_at_stamps(self.source_file, regions_start, regions_ends,                output_dir = self.output_dir)        expected_samples = 1200 * n_slices        written_samples = count_samples_in_directory(self.output_dir)        total_files = count_files_in_directory(self.output_dir)        assert_equal(n_slices, total_files,            "number of slices created different from expected")        assert_equal(written_samples, expected_samples,            "number of samples written different from number of original samples")     def test_slice_start_and_ends_with_missing_end(self):        regions_start = [i*1000 for i in range(n_slices)]        regions_ends = [r-1 for r in regions_start[1:]]        slice_source_at_stamps(self.source_file, regions_start, regions_ends,                output_dir = self.output_dir)        written_samples = count_samples_in_directory(self.output_dir)        original_samples = count_samples_in_file(self.source_file)        total_files = count_files_in_directory(self.output_dir)        assert_equal(n_slices, total_files,            "number of slices created different from expected")        assert_equal(written_samples, original_samples,            "number of samples written different from number of original samples")     def tearDown(self):        shutil.rmtree(self.output_dir)  class aubio_slicing_wrong_starts_test_case(TestCase):     def setUp(self):        self.source_file = get_default_test_sound(self)        self.output_dir = tempfile.mkdtemp(suffix = 'aubio_slicing_test_case')     def test_slice_start_empty(self):        regions_start = []        self.assertRaises(ValueError,                slice_source_at_stamps,                self.source_file, regions_start, output_dir = self.output_dir)     def test_slice_start_none(self):        regions_start = None        self.assertRaises(ValueError,                slice_source_at_stamps,                self.source_file, regions_start, output_dir = self.output_dir)     def tearDown(self):        shutil.rmtree(self.output_dir) class aubio_slicing_wrong_ends_test_case(TestCase):     def setUp(self):        self.source_file = get_default_test_sound(self)        self.output_dir = tempfile.mkdtemp(suffix = 'aubio_slicing_test_case')     def test_slice_wrong_ends(self):        regions_start = [i*1000 for i in range(1, n_slices)]        regions_end = []        self.assertRaises (ValueError,            slice_source_at_stamps, self.source_file, regions_start, regions_end,                output_dir = self.output_dir)     def test_slice_no_ends(self):        regions_start = [i*1000 for i in range(1, n_slices)]        regions_end = None        slice_source_at_stamps (self.source_file, regions_start, regions_end,                output_dir = self.output_dir, create_first=True)        total_files = count_files_in_directory(self.output_dir)        assert_equal(n_slices, total_files,            "number of slices created different from expected")        original_samples = count_samples_in_file(self.source_file)        written_samples = count_samples_in_directory(self.output_dir)        assert_equal(written_samples, original_samples,            "number of samples written different from number of original samples")     def tearDown(self):        shutil.rmtree(self.output_dir) if __name__ == '__main__':    from unittest import main    main()