first commit

.venv/Lib/site-packages/altair/vegalite/v3/tests/test_theme.py

@@ -0,0 +1,20 @@
+import pytest
+
+import altair.vegalite.v3 as alt
+from altair.vegalite.v3.theme import VEGA_THEMES
+
+
+@pytest.fixture
+def chart():
+    return alt.Chart("data.csv").mark_bar().encode(x="x:Q")
+
+
+def test_vega_themes(chart):
+    for theme in VEGA_THEMES:
+        with alt.themes.enable(theme):
+            dct = chart.to_dict()
+        assert dct["usermeta"] == {"embedOptions": {"theme": theme}}
+        assert dct["config"] == {
+            "view": {"width": 400, "height": 300},
+            "mark": {"tooltip": None},
+        }