def test_bad_source(self):
with pytest.raises(ValueError):
bpl._handle_legend_group("foo", "legend", GlyphRenderer())
with pytest.raises(ValueError):
bpl._handle_legend_group(
"foo", "legend",
GlyphRenderer(data_source=ColumnDataSource(data=dict(bar=[]))))
def test_items(self) -> None:
source = ColumnDataSource(data=dict(foo=[10,10,20,30,20,30,40]))
renderer = GlyphRenderer(data_source=source)
legend = Legend(items=[])
bpl._handle_legend_group("foo", legend, renderer)
assert len(legend.items) == 4
assert legend.items[0].label == dict(value="10")
assert legend.items[0].renderers == [renderer]
assert legend.items[0].index == 0
assert legend.items[1].label == dict(value="20")
assert legend.items[1].renderers == [renderer]
assert legend.items[1].index == 2
assert legend.items[2].label == dict(value="30")
assert legend.items[2].renderers == [renderer]
assert legend.items[2].index == 3
assert legend.items[3].label == dict(value="40")
assert legend.items[3].renderers == [renderer]
assert legend.items[3].index == 6
def test_bad_arg(self, arg) -> None:
with pytest.raises(ValueError):
bpl._handle_legend_group(arg, "legend", "renderer")
