def test_label_already_exists(self) -> None:
legend = Legend(items=[LegendItem(label=dict(value="foo"))])
renderer = GlyphRenderer()
bpl._handle_legend_label("foo", legend, renderer)
assert len(legend.items) == 1
assert legend.items[0].label == dict(value="foo")
assert legend.items[0].renderers == [renderer]
def test_label_not_already_exists(self) -> None:
legend = Legend(items=[LegendItem(label=value("foo"))])
renderer = GlyphRenderer()
bpl._handle_legend_label("bar", legend, renderer)
assert len(legend.items) == 2
assert legend.items[0].label == value("foo")
assert legend.items[0].renderers == []
assert legend.items[1].label == value("bar")
assert legend.items[1].renderers == [renderer]
def test_bad_arg(self, arg) -> None:
with pytest.raises(ValueError):
bpl._handle_legend_label(arg, "legend", "renderer")
