def test_model_cannot_add_two_people_with_same_name(empty_model: Model):
"""Ensure duplicate people are not allowed."""
empty_model.add_person(name="Bob")
with pytest.raises(
ValueError, match="A person with the name 'Bob' already exists in the model."
):
empty_model.add_person(name="Bob")
def test_add_nearest_neighbours():
"""Test basic behaviour of add_nearest_neighbours."""
model = Model()
sys1 = model.add_software_system(name="System 1")
sys2 = model.add_software_system(name="System 2")
person = model.add_person(name="Person 1")
sys1.uses(sys2)
person.uses(sys1)
# Check neighbours from outbound relationships
view = DerivedView(software_system=sys1, description="")
view.add_nearest_neighbours(sys1, SoftwareSystem)
assert any((elt_view.element is sys1 for elt_view in view.element_views))
assert any((elt_view.element is sys2 for elt_view in view.element_views))
assert not any(
(elt_view.element is person for elt_view in view.element_views))
assert len(view.relationship_views) == 1
# Check neighbours from inbound relationships
view = DerivedView(software_system=sys1, description="")
view.add_nearest_neighbours(sys2, SoftwareSystem)
assert any((elt_view.element is sys1 for elt_view in view.element_views))
assert any((elt_view.element is sys2 for elt_view in view.element_views))
assert not any(
(elt_view.element is person for elt_view in view.element_views))
assert len(view.relationship_views) == 1
