Adding build_gaze_saccade function for testing purpose.

1 files changed, 92 insertions, 3 deletions

diff --git a/src/argaze.test/GazeAnalysis/DispersionBasedGazeMovementIdentifier.py b/src/argaze.test/GazeAnalysis/DispersionBasedGazeMovementIdentifier.py
index 7909362..c731cef 100644
--- a/src/argaze.test/GazeAnalysis/DispersionBasedGazeMovementIdentifier.py
+++ b/src/argaze.test/GazeAnalysis/DispersionBasedGazeMovementIdentifier.py
@@ -45,9 +45,45 @@ def build_gaze_fixation(size: int, center: tuple, dispersion: float, start_time:
 
     return ts_gaze_positions
 
+def build_gaze_saccade(size: int, center_A: tuple, center_B: tuple, start_time: float, min_time: float, max_time: float, validity: list = []):
+    """ Generate N TimeStampedGazePsoitions between 2 center points for testing purpose.
+        Timestamps are current time after random sleep (second).
+        GazePositions are random values.
+    """
+    ts_gaze_positions = GazeFeatures.TimeStampedGazePositions()
+
+    for i in range(0, size):
+
+        # Check position validity
+        valid = True
+        if len(validity) > i:
+
+             valid = validity[i]
+
+        if valid:
+
+            # Edit gaze position
+            move_x = center_A[0] + (center_B[0] - center_A[0]) * (i / size)
+            move_y = center_A[1] + (center_B[1] - center_A[1]) * (i / size)
+            gaze_position = GazeFeatures.GazePosition((move_x, move_y))
+
+        else:
+
+            gaze_position = GazeFeatures.UnvalidGazePosition()
+
+        # Store gaze position
+        ts = time.time() - start_time
+        ts_gaze_positions[ts] = gaze_position
+
+        # Sleep a random time
+        sleep_time = random.random() * (max_time - min_time) + min_time
+        time.sleep(sleep_time)
+
+    return ts_gaze_positions
+
 class TestDispersionBasedGazeMovementIdentifierClass(unittest.TestCase):
     """Test DispersionBasedGazeMovementIdentifier class."""
-    
+
     def test_fixation_identification(self):
         """Test DispersionBasedGazeMovementIdentifier fixation identification."""
 
@@ -76,7 +112,7 @@ class TestDispersionBasedGazeMovementIdentifierClass(unittest.TestCase):
         self.assertGreaterEqual(fixation.duration, size * min_time)
         self.assertLessEqual(fixation.duration, size * max_time)
     
-    def test_fixation_and_saccade_identification(self):
+    def test_fixation_and_direct_saccade_identification(self):
         """Test DispersionBasedGazeMovementIdentifier fixation and saccade identification."""
 
         size = 10
@@ -123,7 +159,60 @@ class TestDispersionBasedGazeMovementIdentifierClass(unittest.TestCase):
         self.assertLessEqual(fixation.dispersion, dispersion)
         self.assertGreaterEqual(fixation.duration, size * min_time)
         self.assertLessEqual(fixation.duration, size * max_time)
-    
+    '''
+    def test_fixation_and_short_saccade_identification(self):
+        """Test DispersionBasedGazeMovementIdentifier fixation and saccade identification."""
+
+        size = 10
+        move = 2
+        center_A = (0, 0)
+        out_A = (20, 20)
+        center_B = (50, 50)
+        dispersion = 10
+        start_time = time.time()
+        min_time = 0.01
+        max_time = 0.1
+        
+        ts_gaze_positions_A = build_gaze_fixation(size, center_A, dispersion, start_time, min_time, max_time)
+        ts_move_positions = build_gaze_saccade(move, out_A, center_B, start_time, min_time, min_time)
+        ts_gaze_positions_B = build_gaze_fixation(size, center_B, dispersion, start_time, min_time, max_time)
+
+        print(ts_move_positions)
+
+        ts_gaze_positions = ts_gaze_positions_A.append(ts_move_positions).append(ts_gaze_positions_B)
+
+        gaze_movement_identifier = DispersionBasedGazeMovementIdentifier.GazeMovementIdentifier(dispersion_threshold=dispersion, duration_threshold=max_time*2)
+        ts_fixations, ts_saccades, ts_unknown, ts_status = gaze_movement_identifier.identify(ts_gaze_positions)
+
+        # Check result size
+        self.assertEqual(len(ts_fixations), 2)
+        self.assertEqual(len(ts_saccades), 1)
+        self.assertEqual(len(ts_unknown), 0)
+        self.assertEqual(len(ts_status), size*2 + move)
+
+        # Check first fixation
+        ts, fixation = ts_fixations.pop_first()
+
+        self.assertEqual(len(fixation.positions.keys()), size-1)
+        self.assertLessEqual(fixation.dispersion, dispersion)
+        self.assertGreaterEqual(fixation.duration, size * min_time)
+        self.assertLessEqual(fixation.duration, size * max_time)
+
+        # Check first saccade
+        ts, saccade = ts_saccades.pop_first()
+
+        self.assertEqual(len(saccade.positions.keys()), move + 2)
+        self.assertGreaterEqual(saccade.duration, min_time)
+        self.assertLessEqual(saccade.duration, max_time)
+
+        # Check second fixation
+        ts, fixation = ts_fixations.pop_first()
+
+        self.assertEqual(len(fixation.positions.keys()), size-1)
+        self.assertLessEqual(fixation.dispersion, dispersion)
+        self.assertGreaterEqual(fixation.duration, size * min_time)
+        self.assertLessEqual(fixation.duration, size * max_time)
+    '''
     def test_invalid_gaze_position(self):
         """Test DispersionBasedGazeMovementIdentifier fixation and saccade identification with invalid gaze position."""