Polyline decoder

server/lib/python/cartodb_services/test/test_polyline.py

@@ -0,0 +1,39 @@
+from cartodb_services.tools import PolyLine
+from unittest import TestCase
+
+
+class TestPolyline(TestCase):
+
+    def setUp(self):
+        self.polyline = PolyLine()
+
+    def test_should_decode_a_chunk_correctly(self):
+        decoded_polyline = self.polyline.decode('`~oia@`~oia@')
+        original_value = [(-179.98321, -179.98321)]
+
+        assert decoded_polyline == original_value
+
+    def test_should_decode_polyline_correctly(self):
+        original_polyline_1 = [(38.5, -120.2),
+                             (40.7, -120.95),
+                             (43.252, -126.453)]
+        decoded_polyline_1 = self.polyline.decode('_p~iF~ps|U_ulLnnqC_mqNvxq`@')
+
+        assert decoded_polyline_1 == original_polyline_1
+
+        original_polyline_2 = [(17.95783,-5.58105),
+                             (15.79225,2.90039),
+                             (7.60211,-10.76660)]
+        decoded_polyline_2 = self.polyline.decode('mkrlBp`aa@z}eL_pwr@js~p@tilrA')
+
+        assert decoded_polyline_2 == original_polyline_2
+
+        original_polyline_3 = [(62.75473,-157.14844),
+                             (65.07213,169.80469) ,
+                             (48.92250,158.55469),
+                             (44.33957,-150.46875)]
+        decoded_polyline_3 = self.polyline.decode('ax_~Jv`d~\wrcMa`qj}@dfqaBngtcAhb~Zncc}y@')
+
+        assert decoded_polyline_3 == original_polyline_3
+
+