103 lines
3.6 KiB
Python
103 lines
3.6 KiB
Python
from unittest import skipIf
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from django.test import TestCase
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from django.test.utils import override_settings
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from django.db import connection
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from django.db.migrations.loader import MigrationLoader, AmbiguityError
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from django.db.migrations.recorder import MigrationRecorder
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from django.utils import six
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class RecorderTests(TestCase):
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"""
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Tests recording migrations as applied or not.
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"""
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def test_apply(self):
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"""
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Tests marking migrations as applied/unapplied.
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"""
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recorder = MigrationRecorder(connection)
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self.assertEqual(
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recorder.applied_migrations(),
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set(),
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)
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recorder.record_applied("myapp", "0432_ponies")
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self.assertEqual(
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recorder.applied_migrations(),
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set([("myapp", "0432_ponies")]),
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)
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recorder.record_unapplied("myapp", "0432_ponies")
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self.assertEqual(
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recorder.applied_migrations(),
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set(),
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)
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class LoaderTests(TestCase):
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"""
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Tests the disk and database loader, and running through migrations
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in memory.
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"""
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@override_settings(MIGRATION_MODULES={"migrations": "migrations.test_migrations"})
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def test_load(self):
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"""
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Makes sure the loader can load the migrations for the test apps,
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and then render them out to a new AppCache.
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"""
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# Load and test the plan
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migration_loader = MigrationLoader(connection)
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self.assertEqual(
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migration_loader.graph.forwards_plan(("migrations", "0002_second")),
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[("migrations", "0001_initial"), ("migrations", "0002_second")],
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)
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# Now render it out!
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project_state = migration_loader.graph.project_state(("migrations", "0002_second"))
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self.assertEqual(len(project_state.models), 2)
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author_state = project_state.models["migrations", "author"]
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self.assertEqual(
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[x for x, y in author_state.fields],
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["id", "name", "slug", "age", "rating"]
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)
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book_state = project_state.models["migrations", "book"]
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self.assertEqual(
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[x for x, y in book_state.fields],
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["id", "author"]
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)
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@override_settings(MIGRATION_MODULES={"migrations": "migrations.test_migrations"})
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def test_name_match(self):
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"Tests prefix name matching"
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migration_loader = MigrationLoader(connection)
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self.assertEqual(
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migration_loader.get_migration_by_prefix("migrations", "0001").name,
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"0001_initial",
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)
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with self.assertRaises(AmbiguityError):
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migration_loader.get_migration_by_prefix("migrations", "0")
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with self.assertRaises(KeyError):
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migration_loader.get_migration_by_prefix("migrations", "blarg")
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def test_load_import_error(self):
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migration_loader = MigrationLoader(connection)
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with override_settings(MIGRATION_MODULES={"migrations": "migrations.faulty_migrations.import_error"}):
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with self.assertRaises(ImportError):
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migration_loader.load_disk()
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def test_load_module_file(self):
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migration_loader = MigrationLoader(connection)
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with override_settings(MIGRATION_MODULES={"migrations": "migrations.faulty_migrations.file"}):
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migration_loader.load_disk()
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@skipIf(six.PY2, "PY2 doesn't load empty dirs.")
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def test_load_empty_dir(self):
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migration_loader = MigrationLoader(connection)
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with override_settings(MIGRATION_MODULES={"migrations": "migrations.faulty_migrations.namespace"}):
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migration_loader.load_disk()
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