API - support tile server w/ subdomains for static map generation

fittrackee/tests/fixtures/fixtures_app.py

@@ -81,6 +81,8 @@ def app(monkeypatch: pytest.MonkeyPatch) -> Generator:
     monkeypatch.setenv('WEATHER_API_KEY', '')
     if os.getenv('TILE_SERVER_URL'):
         monkeypatch.delenv('TILE_SERVER_URL')
+    if os.getenv('STATICMAP_SUBDOMAINS'):
+        monkeypatch.delenv('STATICMAP_SUBDOMAINS')
     if os.getenv('MAP_ATTRIBUTION'):
         monkeypatch.delenv('MAP_ATTRIBUTION')
     if os.getenv('DEFAULT_STATICMAP'):

fittrackee/tests/workouts/test_utils/test_maps.py

@@ -0,0 +1,63 @@
+from unittest.mock import patch
+
+import pytest
+
+from fittrackee.workouts.utils.maps import get_static_map_tile_server_url
+
+
+class TestGetStaticMapTileServerUrl:
+    @pytest.mark.parametrize(
+        'input_tile_server_url,input_tile_server_subdomains,'
+        'expected_tile_server_url',
+        [
+            (
+                'https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png',
+                None,
+                'https://tile.openstreetmap.org/{z}/{x}/{y}.png',
+            ),
+            (
+                'https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png',
+                'a',
+                'https://a.tile.openstreetmap.org/{z}/{x}/{y}.png',
+            ),
+            (
+                'https://tile.openstreetmap.org/{z}/{x}/{y}.png',
+                None,
+                'https://tile.openstreetmap.org/{z}/{x}/{y}.png',
+            ),
+            (
+                'https://tile.openstreetmap.org/{z}/{x}/{y}.png',
+                'a',
+                'https://tile.openstreetmap.org/{z}/{x}/{y}.png',
+            ),
+        ],
+    )
+    def test_it_returns_tile_server_url(
+        self,
+        input_tile_server_url: str,
+        input_tile_server_subdomains: str,
+        expected_tile_server_url: str,
+    ) -> None:
+        tile_config = {
+            'URL': input_tile_server_url,
+            'STATICMAP_SUBDOMAINS': input_tile_server_subdomains,
+        }
+
+        assert (
+            get_static_map_tile_server_url(tile_config)
+            == expected_tile_server_url
+        )
+
+    def test_it_returns_tile_server_url_with_random_submain_when_multiple_provided(  # noqa
+        self,
+    ) -> None:
+        tile_config = {
+            'URL': 'https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png',
+            'STATICMAP_SUBDOMAINS': 'a,b,c',
+        }
+
+        with patch('random.choice', return_value='b'):
+            assert (
+                get_static_map_tile_server_url(tile_config)
+                == 'https://b.tile.openstreetmap.org/{z}/{x}/{y}.png'
+            )