Fix leaflet python example and add test (equinor#721)

Co-authored-by: Håvard Bjerke <[email protected]>

examples/example_leaflet_map.py

@@ -103,7 +103,7 @@ def array2d_to_png(z_array):
                         "url": map_data,
                         "colorScale": {
                             "colors": DEFAULT_COLORSCALE_COLORS,
-                            "prefixz_arrayeroAlpha": False,
+                            "prefixZeroAlpha": False,
                             "scaleType": "linear",
                             "cutPointMin": 0,
                             "cutPointMax": 1,
@@ -130,7 +130,7 @@ def array2d_to_png(z_array):
             "coordinatePosition": "bottomright",
         },
         updateMode="",
-        minz_arrayoom=-5,
+        minZoom=-5,
     )
 
     app = dash.Dash(__name__)

tests/test_leaflet_map.py

@@ -0,0 +1,29 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at https://mozilla.org/MPL/2.0/.
+#
+# Copyright (C) 2020 - Equinor ASA.
+
+import json
+
+import dash
+import webviz_subsurface_components
+
+
+# Basic test for the component rendering.
+def test_render_leaflet_map(dash_duo: dash.testing.composite.DashComposite) -> None:
+
+    with open(
+        "react/src/demo/example-data/leaflet-map.json", encoding="utf8"
+    ) as json_file:
+        leaflet_data = json.load(json_file)["layers"][1:]
+
+    app = dash.Dash(__name__)
+    app.layout = dash.html.Div(
+        style={"height": "90vh"},
+        children=webviz_subsurface_components.LeafletMap(
+            id="leaflet", minZoom=-5, crs="simple", layers=leaflet_data
+        ),
+    )
+    dash_duo.start_server(app)
+    assert dash_duo.get_logs() == []  # Console should have no errors