예제 #1
0
def test_annot_sanitizing(tmpdir):
    """Test description sanitizing."""
    annot = Annotations([0], [1], ['a;:b'])
    fname = str(tmpdir.join('custom-annot.fif'))
    annot.save(fname)
    annot_read = read_annotations(fname)
    _assert_annotations_equal(annot, annot_read)

    # make sure pytest raises error on char-sequence that is not allowed
    with pytest.raises(ValueError, match='in descriptions not supported'):
        Annotations([0], [1], ['a{COLON}b'])
예제 #2
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def test_crop():
    """Test cropping with annotations."""
    raw = read_raw_fif(fif_fname)
    events = mne.find_events(raw)
    onset = events[events[:, 2] == 1, 0] / raw.info['sfreq']
    duration = np.full_like(onset, 0.5)
    description = ['bad %d' % k for k in range(len(onset))]
    annot = mne.Annotations(onset,
                            duration,
                            description,
                            orig_time=raw.info['meas_date'])
    raw.set_annotations(annot)

    split_time = raw.times[-1] / 2. + 2.
    split_idx = len(onset) // 2 + 1
    raw_cropped_left = raw.copy().crop(0., split_time - 1. / raw.info['sfreq'])
    assert_array_equal(raw_cropped_left.annotations.description,
                       raw.annotations.description[:split_idx])
    assert_allclose(raw_cropped_left.annotations.duration,
                    raw.annotations.duration[:split_idx])
    assert_allclose(raw_cropped_left.annotations.onset,
                    raw.annotations.onset[:split_idx])
    raw_cropped_right = raw.copy().crop(split_time, None)
    assert_array_equal(raw_cropped_right.annotations.description,
                       raw.annotations.description[split_idx:])
    assert_allclose(raw_cropped_right.annotations.duration,
                    raw.annotations.duration[split_idx:])
    assert_allclose(raw_cropped_right.annotations.onset,
                    raw.annotations.onset[split_idx:])
    raw_concat = mne.concatenate_raws([raw_cropped_left, raw_cropped_right],
                                      verbose='debug')
    assert_allclose(raw_concat.times, raw.times)
    assert_allclose(raw_concat[:][0], raw[:][0], atol=1e-20)
    assert_and_remove_boundary_annot(raw_concat)
    # Ensure we annotations survive round-trip crop->concat
    assert_array_equal(raw_concat.annotations.description,
                       raw.annotations.description)
    for attr in ('onset', 'duration'):
        assert_allclose(getattr(raw_concat.annotations, attr),
                        getattr(raw.annotations, attr),
                        err_msg='Failed for %s:' % (attr, ))

    raw.set_annotations(None)  # undo

    # Test concatenating annotations with and without orig_time.
    raw2 = raw.copy()
    raw.set_annotations(Annotations([45.], [3], 'test', raw.info['meas_date']))
    raw2.set_annotations(Annotations([2.], [3], 'BAD', None))
    expected_onset = [45., 2. + raw._last_time]
    raw = concatenate_raws([raw, raw2])
    assert_and_remove_boundary_annot(raw)
    assert_array_almost_equal(raw.annotations.onset, expected_onset, decimal=2)

    # Test IO
    tempdir = _TempDir()
    fname = op.join(tempdir, 'test-annot.fif')
    raw.annotations.save(fname)
    annot_read = read_annotations(fname)
    for attr in ('onset', 'duration', 'orig_time'):
        assert_allclose(getattr(annot_read, attr),
                        getattr(raw.annotations, attr))
    assert_array_equal(annot_read.description, raw.annotations.description)
    annot = Annotations((), (), ())
    annot.save(fname)
    pytest.raises(IOError, read_annotations, fif_fname)  # none in old raw
    annot = read_annotations(fname)
    assert isinstance(annot, Annotations)
    assert len(annot) == 0
    # Test that empty annotations can be saved with an object
    fname = op.join(tempdir, 'test_raw.fif')
    raw.set_annotations(annot)
    raw.save(fname)
    raw_read = read_raw_fif(fname)
    assert isinstance(raw_read.annotations, Annotations)
    assert len(raw_read.annotations) == 0
    raw.set_annotations(None)
    raw.save(fname, overwrite=True)
    raw_read = read_raw_fif(fname)
    assert raw_read.annotations is not None  # XXX to be fixed in #5416
    assert len(raw_read.annotations.onset) == 0  # XXX to be fixed in #5416
예제 #3
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def test_crop():
    """Test cropping with annotations."""
    raw = read_raw_fif(fif_fname)
    events = mne.find_events(raw)
    onset = events[events[:, 2] == 1, 0] / raw.info['sfreq']
    duration = np.full_like(onset, 0.5)
    description = ['bad %d' % k for k in range(len(onset))]
    annot = mne.Annotations(onset, duration, description,
                            orig_time=raw.info['meas_date'])
    raw.set_annotations(annot)

    split_time = raw.times[-1] / 2. + 2.
    split_idx = len(onset) // 2 + 1
    raw_cropped_left = raw.copy().crop(0., split_time - 1. / raw.info['sfreq'])
    assert_array_equal(raw_cropped_left.annotations.description,
                       raw.annotations.description[:split_idx])
    assert_allclose(raw_cropped_left.annotations.duration,
                    raw.annotations.duration[:split_idx])
    assert_allclose(raw_cropped_left.annotations.onset,
                    raw.annotations.onset[:split_idx])
    raw_cropped_right = raw.copy().crop(split_time, None)
    assert_array_equal(raw_cropped_right.annotations.description,
                       raw.annotations.description[split_idx:])
    assert_allclose(raw_cropped_right.annotations.duration,
                    raw.annotations.duration[split_idx:])
    assert_allclose(raw_cropped_right.annotations.onset,
                    raw.annotations.onset[split_idx:])
    raw_concat = mne.concatenate_raws([raw_cropped_left, raw_cropped_right],
                                      verbose='debug')
    assert_allclose(raw_concat.times, raw.times)
    assert_allclose(raw_concat[:][0], raw[:][0], atol=1e-20)
    # Get rid of the boundary events
    raw_concat.annotations.delete(-1)
    raw_concat.annotations.delete(-1)
    # Ensure we annotations survive round-trip crop->concat
    assert_array_equal(raw_concat.annotations.description,
                       raw.annotations.description)
    for attr in ('onset', 'duration'):
        assert_allclose(getattr(raw_concat.annotations, attr),
                        getattr(raw.annotations, attr),
                        err_msg='Failed for %s:' % (attr,))

    raw.set_annotations(None)  # undo

    # Test concatenating annotations with and without orig_time.
    raw2 = raw.copy()
    raw.set_annotations(Annotations([45.], [3], 'test', raw.info['meas_date']))
    raw2.set_annotations(Annotations([2.], [3], 'BAD', None))
    expected_onset = [45., 2. + raw._last_time]
    raw = concatenate_raws([raw, raw2])
    raw.annotations.delete(-1)  # remove boundary annotations
    raw.annotations.delete(-1)
    assert_array_almost_equal(raw.annotations.onset, expected_onset, decimal=2)

    # Test IO
    tempdir = _TempDir()
    fname = op.join(tempdir, 'test-annot.fif')
    raw.annotations.save(fname)
    annot_read = read_annotations(fname)
    for attr in ('onset', 'duration', 'orig_time'):
        assert_allclose(getattr(annot_read, attr),
                        getattr(raw.annotations, attr))
    assert_array_equal(annot_read.description, raw.annotations.description)
    annot = Annotations((), (), ())
    annot.save(fname)
    pytest.raises(IOError, read_annotations, fif_fname)  # none in old raw
    annot = read_annotations(fname)
    assert isinstance(annot, Annotations)
    assert len(annot) == 0
    # Test that empty annotations can be saved with an object
    fname = op.join(tempdir, 'test_raw.fif')
    raw.set_annotations(annot)
    raw.save(fname)
    raw_read = read_raw_fif(fname)
    assert isinstance(raw_read.annotations, Annotations)
    assert len(raw_read.annotations) == 0
    raw.set_annotations(None)
    raw.save(fname, overwrite=True)
    raw_read = read_raw_fif(fname)
    assert raw_read.annotations is not None  # XXX to be fixed in #5416
    assert len(raw_read.annotations.onset) == 0  # XXX to be fixed in #5416