diff --git a/MapView/tests/test_mp.py b/MapView/tests/test_mp.py
index af93bf9..f59b90d 100644
--- a/MapView/tests/test_mp.py
+++ b/MapView/tests/test_mp.py
@@ -80,6 +80,51 @@ class TestMapLatLonToProcessedAgentData(unittest.TestCase):
         self.assertIsNotNone(result)
         self.assertEqual(result, marker)
 
+    def test_marker_is_close_enough(self):
+        marker = Mock()
+        marker.latitude = 30.521
+        marker.longitude = 50.452
+
+        self.instance._active_markers = [marker]
+
+        result = self.instance.map_lat_lon_to_processed_agent_data(50.45, 30.52)
+
+        self.assertIsNotNone(result)
+        self.assertEqual(result, marker)
+
+    def test_marker_is_too_far(self):
+        marker = Mock()
+        marker.latitude = 30.524
+        marker.longitude = 50.454
+
+        self.instance._active_markers = [marker]
+
+        result = self.instance.map_lat_lon_to_processed_agent_data(50.45, 30.52)
+
+        self.assertIsNone(result)
+
+    def test_return_closer_marker(self):
+        marker1 = Mock()
+        marker1.latitude = 30.521
+        marker1.longitude = 50.451
+
+        marker2 = Mock()
+        marker2.latitude = 30.524
+        marker2.longitude = 50.454
+
+        self.instance._active_markers = [marker1, marker2]
+
+        result = self.instance.map_lat_lon_to_processed_agent_data(50.452, 30.522)
+        self.assertIsNotNone(result)
+        self.assertEqual(result, marker1)
+
+        result = self.instance.map_lat_lon_to_processed_agent_data(50.453, 30.523)
+        self.assertIsNotNone(result)
+        self.assertEqual(result, marker2)
+
+        result = self.instance.map_lat_lon_to_processed_agent_data(50.459, 30.529)
+        self.assertIsNone(result)
+
     def test_empty_markers(self):
         self.instance._active_markers = []