def test_setdefault_on_missing_with_no_default_returns_none(self):
# given
p = PropertySet()
# when
value = p.setdefault("name")
# then
assert value is None
def test_setdefault_on_existing_returns_existing(self):
# given
p = PropertySet(name="Alice")
# when
value = p.setdefault("name", "Bob")
# then
assert value == "Alice"
def test_setdefault_on_missing_returns_default(self):
# given
p = PropertySet()
# when
value = p.setdefault("name", "Bob")
# then
assert value == "Bob"
def test_setdefault_on_missing_with_no_default_returns_none(self):
# given
p = PropertySet()
# when
value = p.setdefault("name")
# then
assert value is None
def test_setdefault_on_missing_with_no_default_does_not_add_key(self):
# given
p = PropertySet()
# when
p.setdefault("name")
# then
assert "name" not in p
def test_setdefault_on_missing_returns_default(self):
# given
p = PropertySet()
# when
value = p.setdefault("name", "Bob")
# then
assert value == "Bob"
def test_setdefault_on_existing_returns_existing(self):
# given
p = PropertySet(name="Alice")
# when
value = p.setdefault("name", "Bob")
# then
assert value == "Alice"
def test_update_with_key_value_list(self):
# given
p = PropertySet()
# when
p.update([("name", "Alice")])
# then
assert p["name"] == "Alice"
def test_update_with_dict(self):
# given
p = PropertySet()
# when
p.update({"name": "Alice"})
# then
assert p["name"] == "Alice"
def test_setdefault_on_missing_with_no_default_does_not_add_key(self):
# given
p = PropertySet()
# when
p.setdefault("name")
# then
assert "name" not in p
def test_deleting_sets_to_none(self):
# given
p = PropertySet(name="Alice")
# when
del p["name"]
# then
assert p["name"] == None
def test_setting_to_none_deletes(self):
# given
p = PropertySet(name="Alice")
# when
p["name"] = None
# then
assert "name" not in p
def test_missing_property_is_none(self):
# when
p = PropertySet()
# then
assert p["name"] is None
def test_none_is_not_stored(self):
# when
p = PropertySet(name=None)
# then
assert "name" not in p
