From a08cd2838e5c506f1af6f966f0681eae60a1573e Mon Sep 17 00:00:00 2001
From: Théo de la Hogue
Date: Thu, 15 Jun 2023 16:39:37 +0200
Subject: Adding and testing TimeStampedGazePositions.from_dataframe
 classmethod.

---
 src/argaze.test/GazeFeatures.py | 47 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

(limited to 'src/argaze.test/GazeFeatures.py')

diff --git a/src/argaze.test/GazeFeatures.py b/src/argaze.test/GazeFeatures.py
index f73eefe..8cd2e56 100644
--- a/src/argaze.test/GazeFeatures.py
+++ b/src/argaze.test/GazeFeatures.py
@@ -13,6 +13,7 @@ from dataclasses import dataclass
 from argaze import GazeFeatures
 
 import numpy
+import pandas
 
 def random_gaze_positions(size, screen_dimension: tuple[float, float] = (1, 1)):
     """ Generate random TimeStampedGazePsoitions for testing purpose.
@@ -209,6 +210,52 @@ class TestTimeStampedGazePositionsClass(unittest.TestCase):
 
         self.assertEqual(repr(ts_gaze_positions), "{\"0\": {\"message\": null, \"value\": [null, null], \"precision\": null}}")
 
+    def test_from_dataframe(self):
+        """Test from_dataframe classmethod."""
+
+        data = {'Specific timestamp label': [0, 1, 2, 3, 4], 
+                'Specific gaze position x label': [0, 10, numpy.nan, 30, 40], 
+                'Specific gaze position y label': [0, 100, numpy.nan, 300, 400]
+                }
+        dataframe = pandas.DataFrame().from_dict(data)
+
+        ts_gaze_positions = GazeFeatures.TimeStampedGazePositions.from_dataframe(dataframe, timestamp='Specific timestamp label', x='Specific gaze position x label', y='Specific gaze position y label')
+
+        # Check buffer length
+        self.assertEqual(len(ts_gaze_positions), 5)
+
+        # Check first gaze position is correctly stored and accessible as a GazePosition
+        self.assertIsInstance(ts_gaze_positions[0], GazeFeatures.GazePosition)
+        self.assertEqual(ts_gaze_positions[0].precision, 0)
+        self.assertEqual(ts_gaze_positions[0].valid, True)
+
+        # Check third gaze position is correctly stored and accessible as a UnvalidGazePosition
+        self.assertIsInstance(ts_gaze_positions[2], GazeFeatures.UnvalidGazePosition)
+        self.assertEqual(ts_gaze_positions[2].precision, None)
+        self.assertEqual(ts_gaze_positions[2].valid, False)
+
+        data = {'Specific timestamp label': [0, 1, 2, 3, 4], 
+                'Specific gaze position x label': [0, 10, numpy.nan, 30, 40], 
+                'Specific gaze position y label': [0, 100, numpy.nan, 300, 400],
+                'Specific precisison label': [15, 15, numpy.nan, 15, 15]
+                }
+        dataframe = pandas.DataFrame().from_dict(data)
+
+        ts_gaze_positions = GazeFeatures.TimeStampedGazePositions.from_dataframe(dataframe, timestamp='Specific timestamp label', x='Specific gaze position x label', y='Specific gaze position y label', precision='Specific precisison label')
+
+        # Check buffer length
+        self.assertEqual(len(ts_gaze_positions), 5)
+
+        # Check first gaze position is correctly stored and accessible as a GazePosition
+        self.assertIsInstance(ts_gaze_positions[0], GazeFeatures.GazePosition)
+        self.assertEqual(ts_gaze_positions[0].precision, 15)
+        self.assertEqual(ts_gaze_positions[0].valid, True)
+
+        # Check third gaze position is correctly stored and accessible as a UnvalidGazePosition
+        self.assertIsInstance(ts_gaze_positions[2], GazeFeatures.UnvalidGazePosition)
+        self.assertEqual(ts_gaze_positions[2].precision, None)
+        self.assertEqual(ts_gaze_positions[2].valid, False)
+
     def test_as_dataframe(self):
         """Test inherited as_dataframe method."""
 
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