Remove legacy event and mixed distribution paths

tests/test_dataset_reserved_event.py

@@ -0,0 +1,44 @@
+import unittest
+
+import numpy as np
+
+from dataset import _ExpoBaseDataset
+from targets import RESERVED_IDX
+
+
+class ReservedEventFilteringTests(unittest.TestCase):
+    @staticmethod
+    def _base(extra_info_types):
+        dataset = _ExpoBaseDataset.__new__(_ExpoBaseDataset)
+        dataset.extra_info_types = list(extra_info_types)
+        dataset.event_data = np.asarray(
+            [
+                [101, 10, RESERVED_IDX],
+                [101, 20, 2],
+                [101, 30, 3],
+            ],
+            dtype=np.float64,
+        )
+        return dataset
+
+    def _assert_reserved_event_removed(self, extra_info_types):
+        dataset = self._base(extra_info_types)
+
+        rows = list(dataset._iter_patient_events(impute_no_event_gaps=False))
+
+        self.assertEqual(len(rows), 1)
+        eid, times, labels = rows[0]
+        self.assertEqual(eid, 101)
+        np.testing.assert_array_equal(times, np.asarray([20, 30], dtype=np.float32))
+        np.testing.assert_array_equal(labels, np.asarray([3, 4], dtype=np.int64))
+        self.assertNotIn(RESERVED_IDX, labels.tolist())
+
+    def test_empty_extra_info_removes_legacy_reserved_event(self):
+        self._assert_reserved_event_removed([])
+
+    def test_selected_extra_info_removes_legacy_reserved_event(self):
+        self._assert_reserved_event_removed([11])
+
+
+if __name__ == "__main__":
+    unittest.main()