def test_container_widget():
"""Test basic container functionality."""
container = widgets.Container(labels=False)
labela = widgets.Label(value="hi", name="labela")
labelb = widgets.Label(value="hi", name="labelb")
container.append(labela)
container.extend([labelb])
# different ways to index
assert container[0] == labela
assert container["labelb"] == labelb
assert container[:1] == [labela]
assert container[-1] == labelb
with pytest.raises(NotImplementedError):
container[0] = "something"
assert container.layout == "vertical"
with pytest.raises(NotImplementedError):
container.layout = "horizontal"
assert all(x in dir(container) for x in ["labela", "labelb"])
assert container.margins
container.margins = (8, 8, 8, 8)
assert container.margins == (8, 8, 8, 8)
del container[1:]
del container[-1]
assert not container
def test_visible_in_container():
"""Test that visibility depends on containers."""
w1 = widgets.Label(value="hi", name="w1")
w2 = widgets.Label(value="hi", name="w2")
w3 = widgets.Label(value="hi", name="w2", visible=False)
container = widgets.Container(widgets=[w2, w3])
assert not w1.visible
assert not w2.visible
assert not w3.visible
assert not container.visible
container.show()
assert container.visible
assert w2.visible
assert not w3.visible
w1.show()
assert w1.visible
def test_container_label_widths():
"""Test basic container functionality."""
container = widgets.Container(layout="vertical")
labela = widgets.Label(value="hi", name="labela")
labelb = widgets.Label(value="hi", name="I have a very long label")
def _label_width():
measure = use_app().get_obj("get_text_width")
return max(
measure(w.label) for w in container
if not isinstance(w, widgets._bases.ButtonWidget))
container.append(labela)
before = _label_width()
container.append(labelb)
assert _label_width() > before
def test_labeled_widget_container():
"""Test that _LabeledWidgets follow their children."""
from magicgui.widgets._concrete import _LabeledWidget
w1 = widgets.Label(value="hi", name="w1")
w2 = widgets.Label(value="hi", name="w2")
container = widgets.Container(widgets=[w1, w2], layout="vertical")
assert w1._labeled_widget
lw = w1._labeled_widget()
assert isinstance(lw, _LabeledWidget)
assert not lw.visible
container.show()
assert w1.visible
assert lw.visible
w1.hide()
assert not w1.visible
assert not lw.visible
w1.label = "another label"
assert lw._label_widget.value == "another label"
def test_container_indexing_with_native_mucking():
"""Mostly make sure that the inner model isn't messed up.
keeping indexes with a manipulated native model *may* be something to do in future.
"""
l1 = widgets.Label(name="l1")
l2 = widgets.Label(name="l2")
l3 = widgets.Label(name="l3")
c = widgets.Container(widgets=[l1, l2, l3])
assert c[-1] == l3
# so far they should be in sync
native = c.native.layout()
assert native.count() == len(c)
# much with native layout
native.addStretch()
# haven't changed the magicgui container
assert len(c) == 3
assert c[-1] == l3
# though it has changed the native model
assert native.count() == 4
def test_delete_widget():
"""We can delete widgets from containers."""
a = widgets.Label(name="a")
container = widgets.Container(widgets=[a])
# we can delete widgets
del container.a
with pytest.raises(AttributeError):
getattr(container, "a")
# they disappear from the layout
with pytest.raises(ValueError):
container.index(a)
def test_tooltip():
label = widgets.Label()
assert not label.tooltip
label.tooltip = "My Tooltip"
assert label.tooltip == "My Tooltip"
def test_extra_kwargs_error():
"""Test that unrecognized kwargs gives a FutureWarning."""
with pytest.raises(TypeError) as wrn:
widgets.Label(unknown_kwarg="hi")
assert "unexpected keyword argument" in str(wrn)
def test_extra_kwargs_warn():
"""Test that unrecognized kwargs gives a FutureWarning."""
with pytest.warns(FutureWarning) as wrn:
widgets.Label(unknown_kwarg="hi")
assert "unexpected keyword arguments" in str(wrn[0].message)
