def test_facet_basic():
# wrapped facet
chart1 = (alt.Chart("data.csv").mark_point().encode(
x="x:Q",
y="y:Q",
).facet("category:N", columns=2))
dct1 = chart1.to_dict()
assert dct1["facet"] == alt.Facet("category:N").to_dict()
assert dct1["columns"] == 2
assert dct1["data"] == alt.UrlData("data.csv").to_dict()
# explicit row/col facet
chart2 = (alt.Chart("data.csv").mark_point().encode(
x="x:Q",
y="y:Q",
).facet(row="category1:Q", column="category2:Q"))
dct2 = chart2.to_dict()
assert dct2["facet"]["row"] == alt.Facet("category1:Q").to_dict()
assert dct2["facet"]["column"] == alt.Facet("category2:Q").to_dict()
assert "columns" not in dct2
assert dct2["data"] == alt.UrlData("data.csv").to_dict()
def test_facet():
# wrapped facet
chart1 = alt.Chart('data.csv').mark_point().encode(
x='x:Q',
y='y:Q',
).facet(
'category:N',
columns=2
)
dct1 = chart1.to_dict()
assert dct1['facet'] == alt.Facet('category:N').to_dict()
assert dct1['columns'] == 2
assert dct1['data'] == alt.UrlData('data.csv').to_dict()
# explicit row/col facet
chart2 = alt.Chart('data.csv').mark_point().encode(
x='x:Q',
y='y:Q',
).facet(
row='category1:Q',
column='category2:Q'
)
dct2 = chart2.to_dict()
assert dct2['facet']['row'] == alt.Facet('category1:Q').to_dict()
assert dct2['facet']['column'] == alt.Facet('category2:Q').to_dict()
assert 'columns' not in dct2
assert dct2['data'] == alt.UrlData('data.csv').to_dict()