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#!/usr/bin/env python
import unittest
from argaze import GazeFeatures
import numpy
def random_gaze_positions(size):
""" Generate random TimeStampedGazePsoitions for testing purpose.
Timestamps are current time.
GazePositions are random values.
"""
import random
import time
ts_gaze_positions = GazeFeatures.TimeStampedGazePositions()
for i in range(0, size):
# Edit gaze position
random_gaze_position = GazeFeatures.GazePosition((random.random(), random.random()))
# Store gaze position
ts_gaze_positions[time.time()] = random_gaze_position
return ts_gaze_positions
class TestGazePositionClass(unittest.TestCase):
"""Test GazePosition class."""
def test_new(self):
"""Test GazePosition creation."""
# Check empty GazePosition
empty_gaze_position = GazeFeatures.GazePosition()
self.assertEqual(empty_gaze_position.value, (0, 0))
self.assertEqual(empty_gaze_position[0], 0)
self.assertEqual(empty_gaze_position[1], 0)
for v in empty_gaze_position:
self.assertEqual(v, 0)
self.assertEqual(empty_gaze_position.precision, 0.)
self.assertEqual(len(empty_gaze_position), 2)
self.assertEqual(empty_gaze_position.valid, True)
self.assertEqual(numpy.array(empty_gaze_position).shape, (2,))
# Check integer GazePosition
int_gaze_position = GazeFeatures.GazePosition((123, 456), precision=55)
self.assertEqual(int_gaze_position.value, (123, 456))
self.assertEqual(int_gaze_position[0], 123)
self.assertEqual(int_gaze_position[1], 456)
self.assertEqual(int_gaze_position.precision, 55)
self.assertEqual(len(int_gaze_position), 2)
self.assertEqual(int_gaze_position.valid, True)
self.assertEqual(numpy.array(empty_gaze_position).shape, (2,))
# Check float GazePosition
float_gaze_position = GazeFeatures.GazePosition((1.23, 4.56), precision=5.5)
self.assertEqual(float_gaze_position.value, (1.23, 4.56))
self.assertEqual(float_gaze_position[0], 1.23)
self.assertEqual(float_gaze_position[1], 4.56)
self.assertEqual(float_gaze_position.precision, 5.5)
self.assertEqual(len(float_gaze_position), 2)
self.assertEqual(float_gaze_position.valid, True)
self.assertEqual(numpy.array(empty_gaze_position).shape, (2,))
def test_properties(self):
"""Test GazePosition properties cannot be modified after creation."""
gaze_position = GazeFeatures.GazePosition()
# Check that gaze position value setting fails
with self.assertRaises(AttributeError):
gaze_position.value = (123, 456)
self.assertNotEqual(gaze_position.value, (123, 456))
self.assertEqual(gaze_position.value, (0, 0))
def test_overlapping(self):
"""Test GazePosition overlap method."""
gaze_position_A = GazeFeatures.GazePosition((0, 0), precision=10)
gaze_position_B = GazeFeatures.GazePosition((10, 0), precision=10)
gaze_position_C = GazeFeatures.GazePosition((5, 0), precision=5)
gaze_position_D = GazeFeatures.GazePosition((4, 0), precision=5)
self.assertFalse(gaze_position_A.overlap(gaze_position_B))
self.assertTrue(gaze_position_A.overlap(gaze_position_C))
self.assertFalse(gaze_position_A.overlap(gaze_position_C, both=True))
self.assertFalse(gaze_position_B.overlap(gaze_position_A))
self.assertTrue(gaze_position_B.overlap(gaze_position_C))
self.assertFalse(gaze_position_B.overlap(gaze_position_C, both=True))
self.assertFalse(gaze_position_C.overlap(gaze_position_A))
self.assertFalse(gaze_position_C.overlap(gaze_position_B))
def test___repr__(self):
"""Test GazePosition string representation."""
# Check empty GazePosition representation
self.assertEqual(repr(GazeFeatures.GazePosition()), "{\"value\": [0, 0], \"precision\": 0.0}")
class TestUnvalidGazePositionClass(unittest.TestCase):
"""Test UnvalidGazePosition class."""
def test_new(self):
"""Test UnvalidGazePosition creation."""
import math
unvalid_gaze_position = GazeFeatures.UnvalidGazePosition()
self.assertEqual(unvalid_gaze_position.value, (None, None))
self.assertEqual(unvalid_gaze_position.precision, None)
self.assertEqual(unvalid_gaze_position.valid, False)
def test___repr__(self):
"""Test UnvalidGazePosition string representation."""
self.assertEqual(repr(GazeFeatures.UnvalidGazePosition()), "{\"message\": null, \"value\": [null, null], \"precision\": null}")
class TestTimeStampedGazePositionsClass(unittest.TestCase):
"""Test TimeStampedGazePositions class."""
def test___setitem__(self):
"""Test __setitem__ method."""
ts_gaze_positions = GazeFeatures.TimeStampedGazePositions()
ts_gaze_positions[0] = GazeFeatures.GazePosition()
ts_gaze_positions[1] = GazeFeatures.UnvalidGazePosition()
ts_gaze_positions[2] = {"value": (0, 0), "precision": 0.}
# Check GazePosition is correctly stored and accessible as a GazePosition
self.assertIsInstance(ts_gaze_positions[0], GazeFeatures.GazePosition)
self.assertEqual(ts_gaze_positions[0].valid, True)
# Check UnvalidGazePosition is correctly stored and accessible as a UnvalidGazePosition
self.assertIsInstance(ts_gaze_positions[1], GazeFeatures.UnvalidGazePosition)
self.assertEqual(ts_gaze_positions[1].valid, False)
# Check dict with "value" and "precision" keys is correctly stored and accessible as a GazePosition
self.assertIsInstance(ts_gaze_positions[2], GazeFeatures.GazePosition)
self.assertEqual(ts_gaze_positions[2].valid, True)
# Check that bad data type insertion fails
with self.assertRaises(AssertionError):
ts_gaze_positions[3] = "This string is not a gaze position value."
# Check that dict with bad keys insertion fails
with self.assertRaises(AssertionError):
ts_gaze_positions[4] = {"bad_key": (0, 0), "precision": 0.}
# Check final lenght
self.assertEqual(len(ts_gaze_positions), 3)
def test___repr__(self):
"""Test inherited string representation."""
ts_gaze_positions = GazeFeatures.TimeStampedGazePositions()
self.assertEqual(repr(GazeFeatures.TimeStampedGazePositions()), "{}")
ts_gaze_positions[0] = GazeFeatures.GazePosition()
self.assertEqual(repr(ts_gaze_positions), "{\"0\": {\"value\": [0, 0], \"precision\": 0.0}}")
ts_gaze_positions[0] = GazeFeatures.UnvalidGazePosition()
self.assertEqual(repr(ts_gaze_positions), "{\"0\": {\"message\": null, \"value\": [null, null], \"precision\": null}}")
def test_as_dataframe(self):
"""Test inherited as_dataframe method."""
ts_gaze_positions_dataframe = random_gaze_positions(10).as_dataframe()
# Check dataframe conversion
self.assertEqual(ts_gaze_positions_dataframe.index.name, "timestamp")
self.assertEqual(ts_gaze_positions_dataframe.index.size, 10)
self.assertEqual(ts_gaze_positions_dataframe.columns.size, 2)
self.assertEqual(ts_gaze_positions_dataframe.columns[0], "value")
self.assertEqual(ts_gaze_positions_dataframe.columns[1], "precision")
self.assertEqual(ts_gaze_positions_dataframe["value"].dtype, 'object')
self.assertEqual(ts_gaze_positions_dataframe["precision"].dtype, 'float64')
# Check unvalid position conversion
ts_gaze_positions = GazeFeatures.TimeStampedGazePositions()
ts_gaze_positions[0] = GazeFeatures.UnvalidGazePosition()
ts_gaze_positions_dataframe = ts_gaze_positions.as_dataframe()
self.assertEqual(ts_gaze_positions_dataframe.index.name, "timestamp")
self.assertEqual(ts_gaze_positions_dataframe.index.size, 1)
self.assertEqual(ts_gaze_positions_dataframe.columns.size, 2)
self.assertEqual(ts_gaze_positions_dataframe.columns[0], "value")
self.assertEqual(ts_gaze_positions_dataframe.columns[1], "precision")
self.assertEqual(ts_gaze_positions_dataframe["value"].dtype, 'object')
self.assertEqual(ts_gaze_positions_dataframe["precision"].dtype, 'O') # Python object type
class TestVisualScanStepClass(unittest.TestCase):
"""Test VisualScanStep class."""
def test_new(self):
"""Test VisualScanStep creation."""
movements = GazeFeatures.TimeStampedGazeMovements()
fixation = GazeFeatures.Fixation(random_gaze_positions(10))
ts, _ = fixation.positions.first
movements[ts] = fixation
saccade = GazeFeatures.Saccade(random_gaze_positions(2))
ts, _ = saccade.positions.first
movements[ts] = saccade
visual_scan_step = GazeFeatures.VisualScanStep(movements, 'Test')
# Check visual scan step creation
self.assertEqual(len(visual_scan_step.movements), 2)
self.assertEqual(visual_scan_step.aoi, 'Test')
self.assertEqual(visual_scan_step.first_fixation, fixation)
self.assertEqual(visual_scan_step.last_saccade, saccade)
self.assertGreater(visual_scan_step.duration, 0)
def test_error(self):
"""Test VisualScanStep creation error."""
movements = GazeFeatures.TimeStampedGazeMovements()
saccade = GazeFeatures.Saccade(random_gaze_positions(2))
ts, _ = saccade.positions.first
movements[ts] = saccade
fixation = GazeFeatures.Fixation(random_gaze_positions(10))
ts, _ = fixation.positions.first
movements[ts] = fixation
# Check that visual scan step creation fail
with self.assertRaises(GazeFeatures.VisualScanStepError):
visual_scan_step = GazeFeatures.VisualScanStep(movements, 'Test')
class TestVisualScanPathClass(unittest.TestCase):
"""Test VisualScanPath class."""
def test_new(self):
"""Test VisualScanPath creation."""
# Check visual scan step creation
visual_scan_path = GazeFeatures.VisualScanPath()
self.assertEqual(len(visual_scan_path), 0)
def test_append(self):
"""Test VisualScanPath append methods."""
visual_scan_path = GazeFeatures.VisualScanPath()
# Append fixation on A aoi
fixation = GazeFeatures.Fixation(random_gaze_positions(10))
ts, _ = fixation.positions.first
new_step = visual_scan_path.append_fixation(ts, fixation, 'A')
# Check that no visual scan step have been created yet
self.assertEqual(len(visual_scan_path), 0)
self.assertEqual(new_step, None)
# Append saccade
saccade = GazeFeatures.Saccade(random_gaze_positions(2))
ts, _ = saccade.positions.first
new_step = visual_scan_path.append_saccade(ts, saccade)
# Check that no visual scan step have been created yet
self.assertEqual(len(visual_scan_path), 0)
self.assertEqual(new_step, None)
# Append fixation on B aoi
fixation = GazeFeatures.Fixation(random_gaze_positions(10))
ts, _ = fixation.positions.first
new_step = visual_scan_path.append_fixation(ts, fixation, 'B')
# Check a new visual scan step have been created
self.assertEqual(len(visual_scan_path), 1)
self.assertEqual(len(new_step.movements), 2)
self.assertEqual(new_step.aoi, 'A')
def test_append_error(self):
"""Test VisualScanPath append error."""
visual_scan_path = GazeFeatures.VisualScanPath()
# Append fixation on A aoi
fixation = GazeFeatures.Fixation(random_gaze_positions(10))
ts, _ = fixation.positions.first
new_step = visual_scan_path.append_fixation(ts, fixation, 'A')
# Check that no visual scan step have been created yet
self.assertEqual(len(visual_scan_path), 0)
self.assertEqual(new_step, None)
# Append fixation on B aoi
fixation = GazeFeatures.Fixation(random_gaze_positions(10))
ts, _ = fixation.positions.first
# Check that visual scan step creation fail
with self.assertRaises(GazeFeatures.VisualScanStepError):
new_step = visual_scan_path.append_fixation(ts, fixation, 'B')
if __name__ == '__main__':
unittest.main()
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