--- a
+++ b/test/features/test_position_feature.py
@@ -0,0 +1,68 @@
+# Base Dependencies
+# ----------------
+import pytest
+import numpy as np
+from random import randrange
+
+# Local Dependencies
+# ------------------
+from models import RelationCollection
+from features.position_feature import PositionFeature
+
+# Constants
+# ---------
+from constants import (
+    N2C2_ATTR_ENTITY_CANDIDATES,
+    DDI_ATTR_ENTITY_CANDIDATES,
+)
+
+
+# Tests
+# ------
+def test_position_init():
+    position = PositionFeature("n2c2")
+    assert isinstance(position, PositionFeature)
+    assert position.dataset == "n2c2"
+    assert position.attr_entity_candidates == N2C2_ATTR_ENTITY_CANDIDATES
+
+    position = PositionFeature("ddi")
+    assert isinstance(position, PositionFeature)
+    assert position.dataset == "ddi"
+    assert position.attr_entity_candidates == DDI_ATTR_ENTITY_CANDIDATES
+
+
+def test_position_init_unsupported_dataset_raises():
+    with pytest.raises(ValueError):
+        position = PositionFeature("i2b2")
+
+
+def test_position_get_feature_names():
+    position = PositionFeature("n2c2")
+    assert len(position.get_feature_names()) == 2
+
+
+def test_position_fit(n2c2_small_collection):
+    position = PositionFeature("n2c2")
+    position = position.fit(n2c2_small_collection)
+    assert isinstance(position, PositionFeature)
+
+
+def test_position_create_position_feature_(n2c2_small_collection, relation):
+
+    position = PositionFeature("n2c2")
+    position_feature = position.create_position_feature(n2c2_small_collection)
+    assert position_feature.shape == (len(n2c2_small_collection), 2)
+
+    for i in range(len(n2c2_small_collection)):
+        assert (position_feature[i][0] == 0 and position_feature[i][1] >= 0) or (
+            position_feature[i][0] <= 0 and position_feature[i][1] == 0
+        )
+        
+    one_collection = RelationCollection(relation)
+    
+    position_feature = position.create_position_feature(one_collection)
+    
+    assert (position_feature == np.array([[-1, 0]])).all()
+    
+        
+