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FifTests.test_forward()   A

Complexity

Conditions 1

Size

Total Lines 4

Duplication

Lines 0
Ratio 0 %

Importance

Changes 1
Bugs 0 Features 0
Metric Value
cc 1
c 1
b 0
f 0
dl 0
loc 4
rs 10
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import unittest, numpy
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from mock import Mock
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from datetime import datetime
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from tests.test_basefile import BaseFileTests
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class FifTests(BaseFileTests):
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    def setUp(self):
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        super(FifTests, self).setUp()
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        self.libs = Mock()
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        self.libs.hasDependency.return_value = True
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        self.libs.mne.io.read_raw_fif.side_effect = ValueError
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        self.libs.mne.read_cov.side_effect = ValueError
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        self.libs.mne.read_epochs.side_effect = ValueError
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        self.libs.mne.read_evokeds.side_effect = ValueError
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        self.libs.mne.read_forward_solution.side_effect = ValueError
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        self.libs.mne.read_trans.side_effect = ValueError
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        self.dependencies.getLibraries.return_value = self.libs
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        from niprov.fif import FifFile
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        self.constructor = FifFile
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        self.file = FifFile(self.path, dependencies=self.dependencies)
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    def test_Gets_basic_info_from_mne_and_returns_it(self):
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        self.setupRawFile()
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        out = self.file.inspect()
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        self.assertEqual(out['subject'], 'John Doeish')
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        self.assertEqual(out['project'], 'worlddom')
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        self.assertEqual(out['acquired'], self.acquired)
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    def test_Gets_dimensions(self):
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        self.setupRawFile()
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        out = self.file.inspect()
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        self.assertEqual(out['dimensions'], [123, 91])
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        self.assertEqual(out['sampling-frequency'], 200)
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        self.assertEqual(out['duration'], 91/200.)
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    def test_Attach_method(self):
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        self.setupRawFile()
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        self.file.inspect()
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        self.file.getProvenance = Mock()
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        self.file.getProvenance.return_value = 'serial prov'
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        self.file.attach('json')
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        self.file.getProvenance.assert_called_with('json')
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        self.assertIn('existing bla bla ', #original string+added space 
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            self.img.info['description'])
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        self.assertIn('NIPROV:'+'serial prov', 
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            self.img.info['description'])
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        self.libs.mne.io.write_info.assert_called_with(self.file.path, 
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            self.img.info)
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    def test_Attach_method_doesnt_do_anything_on_non_raw_files(self):
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        self.setupEpochsFile()
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        self.file.getProvenance = Mock()
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        self.file.attach('json')
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        assert not self.libs.mne.io.read_info.called
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        assert not self.file.getProvenance.called
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        assert not self.libs.mne.io.write_info.called
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    def test_Determines_modality(self):
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        out = self.file.inspect()
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        self.assertEqual(out['modality'], 'MEG')
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    def test_Preserves_modality_if_inherited(self):
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        pass # Doesn't have to preserve
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    def test_Tries_different_mne_access_functions_or_fails_silently(self):
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        out = self.file.inspect()
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        self.libs.mne.io.read_raw_fif.assert_called_with(self.path, 
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                                                         allow_maxshield=True)
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        self.libs.mne.read_cov.assert_called_with(self.path)
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        self.libs.mne.read_epochs.assert_called_with(self.path)
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        self.libs.mne.read_evokeds.assert_called_with(self.path)
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        self.libs.mne.read_forward_solution.assert_called_with(self.path)
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        self.libs.mne.read_trans.assert_called_with(self.path)
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        self.assertEqual(out['fif-type'], 'other')
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    def test_epochs(self):
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        self.setupEpochsFile()
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        out = self.file.inspect()
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        self.assertEqual(out['fif-type'], 'epo')
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        self.assertEqual(out['lowpass'],40.0)
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        self.assertEqual(out['highpass'],0.10000000149) 
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        self.assertEqual(out['bad-channels'],['MEG666', 'ECG999'])
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        self.assertEqual(out['dimensions'], [7, 455])
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    def test_evokeds(self):
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        self.setupEvokedsFile()
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        out = self.file.inspect()
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        self.assertEqual(out['fif-type'], 'ave')
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        self.assertEqual(out['dimensions'], [3, 306, 455])
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    def test_covariance(self):
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        self.setupCovarianceFile()
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        out = self.file.inspect()
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        self.assertEqual(out['fif-type'], 'cov')
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        self.assertEqual(out['dimensions'], [365, 365])
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    def test_forward(self):
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        self.setupForwardFile()
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        out = self.file.inspect()
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        self.assertEqual(out['fif-type'], 'fwd')
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    def test_trans(self):
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        self.setupTransFile()
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        out = self.file.inspect()
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        self.assertEqual(out['fif-type'], 'trans')
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    def setupRawFile(self):
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        TS = 1422522595.76096
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        self.acquired = datetime.fromtimestamp(TS)
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        self.img = Mock()
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        self.img.info = {
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            'meas_date':(TS,),
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            'proj_name':'worlddom',
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            'subject_info':{'first_name':'John','last_name':'Doeish'},
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            'nchan':123,
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            'sfreq':200,
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            'description':'existing bla bla'}
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        self.img.first_samp = 10
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        self.img.last_samp = 100
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        self.libs.mne.io.read_raw_fif.side_effect = None
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        self.libs.mne.io.read_raw_fif.return_value = self.img
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        self.libs.mne.io.read_info.return_value = self.img.info
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    def setupEpochsFile(self):
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        self.img = Mock()
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        self.img.info = {
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            'lowpass': 40.0,
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            'highpass': 0.10000000149, 
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            'bads': ['MEG666', 'ECG999']}
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        self.img.events = numpy.zeros((7,3))
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        self.img.times = numpy.zeros((455,1))
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        self.libs.mne.read_epochs.side_effect = None
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        self.libs.mne.read_epochs.return_value = self.img
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    def setupEvokedsFile(self):
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        self.img = Mock()
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        self.img.info = {}
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        self.img.data = numpy.zeros((306,455))
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        self.libs.mne.read_evokeds.side_effect = None
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        self.libs.mne.read_evokeds.return_value = [self.img, self.img, self.img]
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    def setupCovarianceFile(self):
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        self.img = Mock()
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        self.img.data = numpy.zeros((365,365))
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        self.libs.mne.read_cov.side_effect = None
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        self.libs.mne.read_cov.return_value = self.img
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    def setupForwardFile(self):
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        self.img = Mock()
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        self.libs.mne.read_forward_solution.side_effect = None
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        self.libs.mne.read_forward_solution.return_value = self.img
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    def setupTransFile(self):
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        self.img = Mock()
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        self.libs.mne.read_trans.side_effect = None
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        self.libs.mne.read_trans.return_value = self.img
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