Added test for remote JSON.

Author: jreades

tests/test_folium.py

@@ -21,6 +21,8 @@
 from six import PY3
 import branca.element
 
+import requests
+
 import folium
 from folium.map import Popup, Marker, FitBounds, FeatureGroup
 from folium.features import TopoJson, RectangleMarker, PolygonMarker
@@ -448,3 +450,16 @@ def test_global_switches(self):
         assert (mapd.global_switches.prefer_canvas is True and
                 mapd.global_switches.no_touch is True and
                 mapd.global_switches.disable_3d is True)
+
+    def test_json_request(self):
+        """Test requests for remote GeoJSON files."""
+        self.map = folium.Map(zoom_start=4)
+
+        # Adding remote GeoJSON as additional layer.
+        path = 'https://raw.githubusercontent.com/python-visualization/folium/master/examples/data/us-states.json'
+        self.map.choropleth(geo_path=path,
+                            smooth_factor=0.5)
+
+        self.map._parent.render()
+        bounds = self.map.get_bounds()
+        assert bounds == [[18.948267, -178.123152], [71.351633, 173.304726]], bounds