def test_report(self):
settings = {
"context_settings":
[Context(
attributes=dict(x=2, y=2, z=2), metas={},
values=dict(
descriptors=[
ContinuousDescriptor("a", "x + 2", 1),
DiscreteDescriptor("b", "x < 3", (), False),
DiscreteDescriptor("c", "x > 15", (), True),
DiscreteDescriptor("d", "y > x", ("foo", "bar"), False),
DiscreteDescriptor("e", "x ** 2 + y == 5", ("foo", "bar"), True),
StringDescriptor("f", "str(x)"),
DateTimeDescriptor("g", "z")
],
currentIndex=0)
)]
}
w = self.create_widget(OWFeatureConstructor, settings)
v = [ContinuousVariable(name) for name in "xyz"]
domain = Domain(v, [])
self.send_signal(w.Inputs.data, Table.from_numpy(domain, [[0, 1, 2]]))
w.report_items = Mock()
w.send_report()
args = w.report_items.call_args[0][1]
self.assertEqual(list(args), list("abcdefg"))
def test_construct_variables_datetime(self):
data = Table("housing")
name = 'Date'
expression = '"2019-07-{:02}".format(int(MEDV/3))'
featuremodel = PyListModel(
[DateTimeDescriptor(name=name, expression=expression)])
data = Table(
Domain(
list(data.domain.attributes) +
construct_variables(featuremodel, data),
data.domain.class_vars, data.domain.metas), data)
self.assertTrue(isinstance(data.domain[name], TimeVariable))
for row in data:
self.assertEqual("2019-07-{:02}".format(int(row["MEDV"] / 3)),
str(row["Date"])[:10])