def test_micromed_header():
d = Dataset(micromed_file)
assert d.header['chan_name'][-1] == 'EMG'
assert d.header['chan_name'][:5] == ['FP1', 'FP2', 'AF7', 'AF3', 'AFz']
assert d.header['subj_id'] == 'Tp_metrologie Tp_metrologie'
orig = d.header['orig']
assert orig['dvideo_begin'] == iinfo('u4').max
markers = d.read_markers()
assert len(markers) == 444
assert markers[0]['name'] == '1'
assert markers[0]['start'] == markers[0]['end']
data = d.read_data(chan=('FP1', 'AFz'), begsam=10, endsam=20)
assert data.data[0][1, 5] == -334.27734375
data = d.read_data(chan=('FP1', 'AFz'), begsam=-10, endsam=20)
assert all(isnan(data.data[0][1, :10]))
data = d.read_data(chan=('FP1', 'AFz'), begsam=900, endsam=1010)
assert all(isnan(data.data[0][1, -10:]))
data = d.read_data(chan=('FP1', 'AFz'), begsam=-10, endsam=-2)
assert all(isnan(data.data[0][1, :]))
with raises(OSError):
d.read_videos(10, 20)
def test_xltek_videos():
d = Dataset(ktlx_file)
with raises(IndexError):
d.read_videos(0, 2)
videos, v_beg, v_end = d.read_videos(100, 200)
assert len(videos) == 2
assert v_beg == 58.410209
assert v_end == 37.177808