def test_deferred_fields(self):
pre_save_changed.connect(func, sender=DeferredModel)
obj = DeferredModel()
post_init.send(instance=obj, sender=DeferredModel)
assert list(obj._fieldsignals_originals.values()) == [{'a': 1}]
def test_deferred_fields(self):
pre_save_changed.connect(func, sender=DeferredModel)
obj = DeferredModel()
post_init.send(instance=obj, sender=DeferredModel)
assert list(obj._fieldsignals_originals.values()) == [{'a': 1}]
def test_pre_save_with_fields_unchanged(self):
with must_be_called(False) as func:
pre_save_changed.connect(func, sender=FakeModel, fields=('a_key',))
obj = FakeModel()
post_init.send(instance=obj, sender=FakeModel)
obj.another = 'dont care about this field'
pre_save.send(instance=obj, sender=FakeModel)
def test_pre_save_with_fields_changed(self):
with must_be_called(True) as func:
pre_save_changed.connect(func, sender=FakeModel, fields=('a_key',))
obj = FakeModel()
post_init.send(instance=obj, sender=FakeModel)
obj.a_key = 'change a field that we care about'
pre_save.send(instance=obj, sender=FakeModel)
def test_pre_save_unchanged(self):
with must_be_called(False) as func:
pre_save_changed.connect(func, sender=FakeModel)
obj = FakeModel()
# post_init sets list of initial values
post_init.send(instance=obj, sender=FakeModel)
# This *doesn't* call pre_save_changed, because we haven't changed anything.
pre_save.send(instance=obj, sender=FakeModel)
def test_pre_save_unchanged(self):
with must_be_called(False) as func:
pre_save_changed.connect(func, sender=FakeModel)
obj = FakeModel()
# post_init sets list of initial values
post_init.send(instance=obj, sender=FakeModel)
# This *doesn't* call pre_save_changed, because we haven't changed anything.
pre_save.send(instance=obj, sender=FakeModel)
def test_pre_save_changed(self):
with must_be_called(True) as func:
pre_save_changed.connect(func, sender=FakeModel)
obj = FakeModel()
# post_init sets list of initial values
post_init.send(instance=obj, sender=FakeModel)
obj.a_key = 'another value'
pre_save.send(instance=obj, sender=FakeModel)
def test_pre_save_with_fields_unchanged(self):
with must_be_called(False) as func:
pre_save_changed.connect(func,
sender=FakeModel,
fields=('a_key', ))
obj = FakeModel()
post_init.send(instance=obj, sender=FakeModel)
obj.another = 'dont care about this field'
pre_save.send(instance=obj, sender=FakeModel)
def test_pre_save_with_fields_changed(self):
with must_be_called(True) as func:
pre_save_changed.connect(func,
sender=FakeModel,
fields=('a_key', ))
obj = FakeModel()
post_init.send(instance=obj, sender=FakeModel)
obj.a_key = 'change a field that we care about'
pre_save.send(instance=obj, sender=FakeModel)
def test_pre_save_changed(self):
with must_be_called(True) as func:
pre_save_changed.connect(func, sender=FakeModel)
obj = FakeModel()
# post_init sets list of initial values
post_init.send(instance=obj, sender=FakeModel)
obj.a_key = 'another value'
pre_save.send(instance=obj, sender=FakeModel)
def test_pre_save_with_fields_changed(self):
with must_be_called(True) as func:
pre_save_changed.connect(func,
sender=FakeModel,
fields=("a_key", ))
obj = FakeModel()
post_init.send(instance=obj, sender=FakeModel)
obj.a_key = "change a field that we care about"
pre_save.send(instance=obj, sender=FakeModel)
assert func.kwargs["changed_fields"] == {
"a_key": ("a value", "change a field that we care about")
}
def test_pre_save_changed(self):
with must_be_called(True) as func:
pre_save_changed.connect(func, sender=FakeModel)
obj = FakeModel()
# post_init sets list of initial values
post_init.send(instance=obj, sender=FakeModel)
obj.a_key = "another value"
pre_save.send(instance=obj, sender=FakeModel)
assert func.kwargs["changed_fields"] == {
"a_key": ("a value", "another value")
}
def test_compare_after_to_python(self):
"""
Field values (e.g. datetimes) are equal even if set via string.
Ensures that to_python() is called prior to comparison between old & new values.
"""
with must_be_called(False) as func:
pre_save_changed.connect(func, sender=FakeModel, fields=('a_datetime',))
obj = FakeModel()
obj.a_datetime = '2017-01-01T00:00:00.000000Z'
post_init.send(instance=obj, sender=FakeModel)
# This is identical to the above, even though the type is different,
# so don't call the signal
obj.a_datetime = datetime.datetime(2017, 1, 1, 0, 0, 0, 0, utc)
pre_save.send(instance=obj, sender=FakeModel)
def test_compare_after_to_python(self):
"""
Field values (e.g. datetimes) are equal even if set via string.
Ensures that to_python() is called prior to comparison between old & new values.
"""
with must_be_called(False) as func:
pre_save_changed.connect(func,
sender=FakeModel,
fields=('a_datetime', ))
obj = FakeModel()
obj.a_datetime = '2017-01-01T00:00:00.000000Z'
post_init.send(instance=obj, sender=FakeModel)
# This is identical to the above, even though the type is different,
# so don't call the signal
obj.a_datetime = datetime.datetime(2017, 1, 1, 0, 0, 0, 0, utc)
pre_save.send(instance=obj, sender=FakeModel)
