+++ /dev/null
-import unittest
-import datetime
-import sys
-import os
-
-from south import migration
-
-# Add the tests directory so fakeapp is on sys.path
-test_root = os.path.dirname(__file__)
-sys.path.append(test_root)
-
-
-class TestMigrationLogic(unittest.TestCase):
-
- """
- Tests if the various logic functions in migration actually work.
- """
-
- def create_fake_app(self, name):
-
- class Fake:
- pass
-
- fake = Fake()
- fake.__name__ = name
- return fake
-
-
- def create_test_app(self):
-
- class Fake:
- pass
-
- fake = Fake()
- fake.__name__ = "fakeapp.migrations"
- fake.__file__ = os.path.join(test_root, "fakeapp", "migrations", "__init__.py")
- return fake
-
-
- def monkeypatch(self):
- """Swaps out various Django calls for fake ones for our own nefarious purposes."""
-
- def new_get_apps():
- return ['fakeapp']
-
- from django.db import models
- from django.conf import settings
- models.get_apps_old, models.get_apps = models.get_apps, new_get_apps
- settings.INSTALLED_APPS, settings.OLD_INSTALLED_APPS = (
- ["fakeapp"],
- settings.INSTALLED_APPS,
- )
- self.redo_app_cache()
- setUp = monkeypatch
-
-
- def unmonkeypatch(self):
- """Undoes what monkeypatch did."""
-
- from django.db import models
- from django.conf import settings
- models.get_apps = models.get_apps_old
- settings.INSTALLED_APPS = settings.OLD_INSTALLED_APPS
- self.redo_app_cache()
- tearDown = unmonkeypatch
-
-
- def redo_app_cache(self):
- from django.db.models.loading import AppCache
- a = AppCache()
- a.loaded = False
- a._populate()
-
-
- def test_get_app_name(self):
- self.assertEqual(
- "southtest",
- migration.get_app_name(self.create_fake_app("southtest.migrations")),
- )
- self.assertEqual(
- "baz",
- migration.get_app_name(self.create_fake_app("foo.bar.baz.migrations")),
- )
-
-
- def test_get_migrated_apps(self):
-
- P1 = __import__("fakeapp.migrations", {}, {}, [''])
-
- self.assertEqual(
- [P1],
- list(migration.get_migrated_apps()),
- )
-
-
- def test_get_app(self):
-
- P1 = __import__("fakeapp.migrations", {}, {}, [''])
-
- self.assertEqual(P1, migration.get_app("fakeapp"))
- self.assertEqual(P1, migration.get_app(self.create_fake_app("fakeapp.models")))
-
-
- def test_get_app_fullname(self):
- self.assertEqual(
- "southtest",
- migration.get_app_fullname(self.create_fake_app("southtest.migrations")),
- )
- self.assertEqual(
- "foo.bar.baz",
- migration.get_app_fullname(self.create_fake_app("foo.bar.baz.migrations")),
- )
-
-
- def test_get_migration_names(self):
-
- app = self.create_test_app()
-
- self.assertEqual(
- ["0001_spam", "0002_eggs", "0003_alter_spam"],
- migration.get_migration_names(app),
- )
-
-
- def test_get_migration_classes(self):
-
- app = self.create_test_app()
-
- # Can't use vanilla import, modules beginning with numbers aren't in grammar
- M1 = __import__("fakeapp.migrations.0001_spam", {}, {}, ['Migration']).Migration
- M2 = __import__("fakeapp.migrations.0002_eggs", {}, {}, ['Migration']).Migration
- M3 = __import__("fakeapp.migrations.0003_alter_spam", {}, {}, ['Migration']).Migration
-
- self.assertEqual(
- [M1, M2, M3],
- list(migration.get_migration_classes(app)),
- )
-
-
- def test_get_migration(self):
-
- app = self.create_test_app()
-
- # Can't use vanilla import, modules beginning with numbers aren't in grammar
- M1 = __import__("fakeapp.migrations.0001_spam", {}, {}, ['Migration']).Migration
- M2 = __import__("fakeapp.migrations.0002_eggs", {}, {}, ['Migration']).Migration
-
- self.assertEqual(M1, migration.get_migration(app, "0001_spam"))
- self.assertEqual(M2, migration.get_migration(app, "0002_eggs"))
-
- self.assertRaises((ImportError, ValueError), migration.get_migration, app, "0001_jam")
-
-
- def test_all_migrations(self):
-
- app = migration.get_app("fakeapp")
-
- self.assertEqual(
- {app: {
- "0001_spam": migration.get_migration(app, "0001_spam"),
- "0002_eggs": migration.get_migration(app, "0002_eggs"),
- "0003_alter_spam": migration.get_migration(app, "0003_alter_spam"),
- }},
- migration.all_migrations(),
- )
-
-
- def assertListEqual(self, list1, list2):
- list1 = list(list1)
- list2 = list(list2)
- list1.sort()
- list2.sort()
- return self.assertEqual(list1, list2)
-
-
- def test_apply_migrations(self):
-
- app = migration.get_app("fakeapp")
-
- # We should start with no migrations
- self.assertEqual(list(migration.MigrationHistory.objects.all()), [])
-
- # Apply them normally
- migration.migrate_app(app, target_name=None, resolve_mode=None, fake=False, silent=True)
-
- # We should finish with all migrations
- self.assertListEqual(
- (
- (u"fakeapp", u"0001_spam"),
- (u"fakeapp", u"0002_eggs"),
- (u"fakeapp", u"0003_alter_spam"),
- ),
- migration.MigrationHistory.objects.values_list("app_name", "migration"),
- )
-
- # Now roll them backwards
- migration.migrate_app(app, target_name="zero", resolve_mode=None, fake=False, silent=True)
-
- # Finish with none
- self.assertEqual(list(migration.MigrationHistory.objects.all()), [])
-
-
- def test_migration_merge_forwards(self):
-
- app = migration.get_app("fakeapp")
-
- # We should start with no migrations
- self.assertEqual(list(migration.MigrationHistory.objects.all()), [])
-
- # Insert one in the wrong order
- migration.MigrationHistory.objects.create(
- app_name = "fakeapp",
- migration = "0002_eggs",
- applied = datetime.datetime.now(),
- )
-
- # Did it go in?
- self.assertListEqual(
- (
- (u"fakeapp", u"0002_eggs"),
- ),
- migration.MigrationHistory.objects.values_list("app_name", "migration"),
- )
-
- # Apply them normally
- try:
- migration.migrate_app(app, target_name=None, resolve_mode=None, fake=False, silent=True)
- except SystemExit:
- pass
-
- # Nothing should have changed (no merge mode!)
- self.assertListEqual(
- (
- (u"fakeapp", u"0002_eggs"),
- ),
- migration.MigrationHistory.objects.values_list("app_name", "migration"),
- )
-
- # Apply with merge
- migration.migrate_app(app, target_name=None, resolve_mode="merge", fake=False, silent=True)
-
- # We should finish with all migrations
- self.assertListEqual(
- (
- (u"fakeapp", u"0001_spam"),
- (u"fakeapp", u"0002_eggs"),
- (u"fakeapp", u"0003_alter_spam"),
- ),
- migration.MigrationHistory.objects.values_list("app_name", "migration"),
- )
-
- # Now roll them backwards
- migration.migrate_app(app, target_name="0002", resolve_mode=None, fake=False, silent=True)
- migration.migrate_app(app, target_name="0001", resolve_mode=None, fake=True, silent=True)
- migration.migrate_app(app, target_name="zero", resolve_mode=None, fake=False, silent=True)
-
- # Finish with none
- self.assertEqual(list(migration.MigrationHistory.objects.all()), [])
-
- def test_alter_column_null(self):
- def null_ok():
- from django.db import connection, transaction
- # the DBAPI introspection module fails on postgres NULLs.
- cursor = connection.cursor()
- try:
- cursor.execute("INSERT INTO southtest_spam (id, weight, expires, name) VALUES (100, 10.1, now(), NULL);")
- except:
- transaction.rollback()
- return False
- else:
- cursor.execute("DELETE FROM southtest_spam")
- transaction.commit()
- return True
-
- app = migration.get_app("fakeapp")
- self.assertEqual(list(migration.MigrationHistory.objects.all()), [])
-
- # by default name is NOT NULL
- migration.migrate_app(app, target_name="0002", resolve_mode=None, fake=False, silent=True)
- self.failIf(null_ok())
-
- # after 0003, it should be NULL
- migration.migrate_app(app, target_name="0003", resolve_mode=None, fake=False, silent=True)
- self.assert_(null_ok())
-
- # make sure it is NOT NULL again
- migration.migrate_app(app, target_name="0002", resolve_mode=None, fake=False, silent=True)
- self.failIf(null_ok(), 'name not null after migration')
-
- # finish with no migrations, otherwise other tests fail...
- migration.migrate_app(app, target_name="zero", resolve_mode=None, fake=False, silent=True)
- self.assertEqual(list(migration.MigrationHistory.objects.all()), [])
\ No newline at end of file
fnp / wolnelektury.git / blobdiff