def test_form_itemFactory_selection(qtbot):
"""Checks that the TaurusForm itemFactory selection API works"""
lines = ["test_Form_ItemFactorySel={}:_DummyItemFactory".format(__name__)]
group = "taurus.form.item_factories"
mapping = mock_entry_point(lines, group=group)
ep1 = mapping[group]["test_Form_ItemFactorySel"]
w = TaurusForm()
qtbot.addWidget(w)
# the test_Form_ItemFactory should be in the default factories
default_factories = w.getItemFactories()
assert ep1 in default_factories
# no factories should be excluded by default
inc, exc = w.getItemFactories(return_disabled=True)
assert exc == []
# Check that we can deselect all factories
no_factories = w.setItemFactories(include=[])
assert no_factories == []
# Check that we can exclude everything except test_Form_ItemFactory
select1 = w.setItemFactories(exclude=[r"(?!.*test_Form_ItemFactorySel).*"])
assert select1 == [ep1]
# Check that we can include only test_Form_ItemFactory
select2 = w.setItemFactories(include=["test_Form_ItemFactorySel"])
assert select2 == [ep1]
# Check that the selected test_Form_ItemFactory is an entry point
from pkg_resources import EntryPoint
assert type(select2[0]) == EntryPoint
# Check that the selected entry point loads _DummyItemFactory
assert select2[0].load() is _DummyItemFactory
# Check that we can include a factory instance
select3 = w.setItemFactories(include=[_DummyItemFactory])
# Check that the selected test_Form_ItemFactory is an entry point-alike
from taurus.core.util.plugin import EntryPointAlike
assert type(select3[0]) == EntryPointAlike
# Check that the selected entry point loads _DummyItemFactory
assert select3[0].load() is _DummyItemFactory
# Check that the selected entry point has the given name
assert select3[0].name == repr(_DummyItemFactory)
