Testing that error is raised when creating a bad visual scan path.

1 files changed, 24 insertions, 0 deletions

diff --git a/src/argaze.test/GazeFeatures.py b/src/argaze.test/GazeFeatures.py
index dd3c49b..aebbcfc 100644
--- a/src/argaze.test/GazeFeatures.py
+++ b/src/argaze.test/GazeFeatures.py
@@ -299,6 +299,30 @@ class TestVisualScanPathClass(unittest.TestCase):
         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()
\ No newline at end of file