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import pytest
from magicgui import magicgui, use_app, widgets
@pytest.mark.parametrize("scrollable", [False, True])
def test_container_widget(scrollable):
"""Test basic container functionality."""
container = widgets.Container(labels=False, scrollable=scrollable)
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(RuntimeError):
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
container.close()
@pytest.mark.parametrize("scrollable", [False, True])
def test_container_label_widths(scrollable):
"""Test basic container functionality."""
container = widgets.Container(layout="vertical", scrollable=scrollable)
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
container.close()
@pytest.mark.parametrize("scrollable", [False, True])
def test_labeled_widget_container(scrollable):
"""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", scrollable=scrollable
)
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"
container.close()
@pytest.mark.parametrize("scrollable", [False, True])
def test_visible_in_container(scrollable):
"""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="w3", visible=False)
container = widgets.Container(widgets=[w2, w3], scrollable=scrollable)
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
container.close()
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):
_ = container.a
# they disappear from the layout
with pytest.raises(ValueError):
container.index(a)
def test_reset_choice_recursion():
"""Test that reset_choices recursion works for multiple types of widgets."""
x = 0
def get_choices(widget):
nonlocal x
x += 1
return list(range(x))
@magicgui(c={"choices": get_choices})
def f(c):
pass
assert f.c.choices == (0,)
container = widgets.Container(widgets=[f])
container.reset_choices()
assert f.c.choices == (0, 1)
container.reset_choices()
assert f.c.choices == (0, 1, 2)
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_containers_show_nested_containers():
"""make sure showing a container shows a nested FunctionGui."""
@magicgui
def func(x: int, y: str):
pass
assert not func.visible
c2 = widgets.Container(widgets=[func])
assert not c2.visible
c2.show()
assert c2.visible and func.visible
c2.close()
assert not func.visible
def test_container_removal():
c = widgets.Container()
s = widgets.Slider(label="label")
assert len(c) == 0
assert c.native.layout().count() == 0
c.append(s)
assert len(c) == 1
assert c.native.layout().count() == 1
c.pop()
assert len(c) == 0
assert c.native.layout().count() == 0
def test_connection_during_init() -> None:
class C(widgets.Container):
def __init__(self) -> None:
btn = widgets.PushButton()
btn.changed.connect(self._on_clicked)
super().__init__(widgets=[btn])
def _on_clicked(self): ...
assert isinstance(C(), widgets.Container)
def test_parent():
lbl = widgets.Label()
inner = widgets.Container(widgets=[lbl])
outer = widgets.Container()
outer.append(inner)
assert lbl.parent is inner
assert inner.parent is outer
assert outer.parent is None
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