def test_diff_identical_model(self):
"""Testing Diff with identical signatures"""
class DestModel(BaseTestModel):
name = models.CharField(max_length=20)
age = models.IntegerField()
ref = models.ForeignKey(DiffAnchor1, on_delete=models.CASCADE)
end_sig = self.make_end_signatures(DestModel, 'TestModel')[1]
d = Diff(self.start_sig, end_sig)
self.assertTrue(d.is_empty())
self.assertEqual(d.evolution(), {})
def test_diff_identical_model(self):
"""Testing Diff with identical signatures"""
class DestModel(models.Model):
name = models.CharField(max_length=20)
age = models.IntegerField()
ref = models.ForeignKey(DiffAnchor1,
on_delete=models.CASCADE)
end_sig = self.make_end_signatures(DestModel, 'TestModel')[1]
d = Diff(self.start_sig, end_sig)
self.assertTrue(d.is_empty())
self.assertEqual(d.evolution(), {})
def perform_diff_test(self, end_sig, diff_text, expected_hint,
expect_empty=False):
d = Diff(self.start_sig, end_sig)
self.assertEqual(d.is_empty(), expect_empty)
if not expect_empty:
if diff_text is not None:
self.assertEqual(str(d), diff_text)
if expected_hint is not None:
self.assertEqual(
[str(e) for e in d.evolution()['tests']],
expected_hint)
return d
def perform_diff_test(self,
end_sig,
diff_text=None,
expected_hint=None,
expect_empty=False):
"""Generate a diff between signatures and check for expected results.
The registered base signature and the provided ending signature will
be diffed, asserted to be empty/not empty (depending on the arguments),
and then checked against the provided diff text and hint.
Args:
end_sig (django_evolution.signature.ProjectSignature):
The expected project signature at the end of the evolution.
This is generated by :py:meth:`make_end_signatures`.
diff_text (unicode, optional):
The expected generated text describing a diff that must
match, if provided.
expected_hint (unicode, optional):
The expected generated hint text that must match, if provided.
expect_empty (bool, optional):
Whether the diff is expected to be empty.
Returns:
django_evolution.diff.Diff:
The resulting diff.
Raises:
AssertionError:
One of the expectations has failed.
"""
d = Diff(self.start_sig, end_sig)
self.assertEqual(d.is_empty(), expect_empty)
if not expect_empty:
if diff_text is not None:
self.assertEqual(str(d), diff_text)
if expected_hint is not None:
self.assertEqual([str(e) for e in d.evolution()['tests']],
expected_hint)
return d
def perform_diff_test(self,
end_sig,
diff_text,
expected_hint,
expect_empty=False):
d = Diff(self.start_sig, end_sig)
self.assertEqual(d.is_empty(), expect_empty)
if not expect_empty:
if diff_text is not None:
self.assertEqual(str(d), diff_text)
if expected_hint is not None:
self.assertEqual([str(e) for e in d.evolution()['tests']],
expected_hint)
return d
latest_version = Version.objects.using(database).latest('when')
else:
latest_version = Version.objects.latest('when')
database_sig = pickle.loads(str(latest_version.signature))
diff = Diff(database_sig, current_proj_sig)
except Evolution.DoesNotExist:
raise CommandError("Can't evolve yet. Need to set an "
"evolution baseline.")
try:
for app in app_list:
app_label = app.__name__.split('.')[-2]
if hint:
evolutions = []
hinted_evolution = diff.evolution()
temp_mutations = hinted_evolution.get(app_label, [])
else:
evolutions = get_unapplied_evolutions(app, database)
temp_mutations = get_mutations(app, evolutions, database)
mutations = [
mutation for mutation in temp_mutations
if mutation.is_mutable(app_label, database_sig, database)
]
if mutations:
app_sql = ['-- Evolve application %s' % app_label]
evolution_required = True
for mutation in mutations:
latest_version = Version.objects.using(database).latest('when')
else:
latest_version = Version.objects.latest('when')
database_sig = pickle.loads(str(latest_version.signature))
diff = Diff(database_sig, current_proj_sig)
except Evolution.DoesNotExist:
raise CommandError("Can't evolve yet. Need to set an "
"evolution baseline.")
try:
for app in app_list:
app_label = app.__name__.split('.')[-2]
if hint:
evolutions = []
hinted_evolution = diff.evolution()
temp_mutations = hinted_evolution.get(app_label, [])
else:
evolutions = get_unapplied_evolutions(app, database)
temp_mutations = get_mutations(app, evolutions, database)
mutations = [
mutation for mutation in temp_mutations
if mutation.is_mutable(app_label, database_sig,
database)
]
if mutations:
app_sql = ['-- Evolve application %s' % app_label]
evolution_required = True
