testing identification with non valid positions.

1 files changed, 43 insertions, 9 deletions

diff --git a/src/argaze.test/GazeAnalysis/DispersionBasedGazeMovementIdentifier.py b/src/argaze.test/GazeAnalysis/DispersionBasedGazeMovementIdentifier.py
index 55f075c..01b2aad 100644
--- a/src/argaze.test/GazeAnalysis/DispersionBasedGazeMovementIdentifier.py
+++ b/src/argaze.test/GazeAnalysis/DispersionBasedGazeMovementIdentifier.py
@@ -9,7 +9,7 @@ from argaze.GazeAnalysis import DispersionBasedGazeMovementIdentifier
 
 import numpy
 
-def build_gaze_fixation(size: int, center: tuple, dispersion: float, start_time: float, min_time: float, max_time: float):
+def build_gaze_fixation(size: int, center: tuple, dispersion: float, start_time: float, min_time: float, max_time: float, validity: list = []):
     """ Generate N TimeStampedGazePsoitions dispersed around a center point for testing purpose.
         Timestamps are current time after random sleep (second).
         GazePositions are random values.
@@ -18,16 +18,26 @@ def build_gaze_fixation(size: int, center: tuple, dispersion: float, start_time:
 
     for i in range(0, size):
 
-        # Edit gaze position
-        random_x = center[0] + dispersion * (random.random() - 0.5)
-        random_y = center[1] + dispersion * (random.random() - 0.5)
-        random_gaze_position = GazeFeatures.GazePosition((random_x, random_y))
+        # Check position validity
+        valid = True
+        if len(validity) > i:
+
+             valid = validity[i]
+
+        if valid:
+
+            # Edit gaze position
+            random_x = center[0] + dispersion * (random.random() - 0.5)
+            random_y = center[1] + dispersion * (random.random() - 0.5)
+            gaze_position = GazeFeatures.GazePosition((random_x, random_y))
+
+        else:
+
+            gaze_position = GazeFeatures.UnvalidGazePosition()
 
         # Store gaze position
         ts = time.time() - start_time
-        ts_gaze_positions[ts] = random_gaze_position
-
-        #print(ts, random_x, random_y)
+        ts_gaze_positions[ts] = gaze_position
 
         # Sleep a random time
         sleep_time = random.random() * (max_time - min_time) + min_time
@@ -115,7 +125,31 @@ class TestDispersionBasedGazeMovementIdentifierClass(unittest.TestCase):
     def test_invalid_gaze_position(self):
         """Test DispersionBasedGazeMovementIdentifier fixation and saccade identification with invalid gaze position."""
 
-        pass
+        size = 10
+        center = (0, 0)
+        dispersion = 10
+        start_time = time.time()
+        min_time = 0.01
+        max_time = 0.1
+        validity = [True, True, True, True, False, False, True, True, True, True]
+        
+        ts_gaze_positions = build_gaze_fixation(size, center, dispersion, start_time, min_time, max_time, validity)
+
+        gaze_movement_identifier = DispersionBasedGazeMovementIdentifier.GazeMovementIdentifier(dispersion_threshold=dispersion, duration_threshold=min_time*2)
+        ts_fixations, ts_saccades, ts_status = gaze_movement_identifier.identify(ts_gaze_positions)
+
+        # Check result size
+        self.assertEqual(len(ts_fixations), 1)
+        self.assertEqual(len(ts_saccades), 0)
+        self.assertEqual(len(ts_status), size-2)
+
+        # Check fixation
+        ts, fixation = ts_fixations.pop_first()
+
+        self.assertEqual(len(fixation.positions.keys()), size-2)
+        self.assertLessEqual(fixation.dispersion, dispersion)
+        self.assertGreaterEqual(fixation.duration, size * min_time)
+        self.assertLessEqual(fixation.duration, size * max_time)
         
 if __name__ == '__main__':