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903 lines
33 KiB
Python
903 lines
33 KiB
Python
5 years ago
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from south.tests import unittest
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import datetime
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import sys
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try:
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set # builtin, python >=2.6
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except NameError:
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from sets import Set as set # in stdlib, python >=2.3
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from south import exceptions
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from south.migration import migrate_app
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from south.migration.base import all_migrations, Migrations
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from south.creator.changes import ManualChanges
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from south.migration.utils import depends, flatten, get_app_label
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from south.models import MigrationHistory
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from south.tests import Monkeypatcher
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from south.db import db
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class TestBrokenMigration(Monkeypatcher):
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installed_apps = ["fakeapp", "otherfakeapp", "brokenapp"]
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def test_broken_dependencies(self):
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self.assertRaises(
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exceptions.DependsOnUnmigratedApplication,
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Migrations.calculate_dependencies,
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force=True,
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)
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#depends_on_unknown = self.brokenapp['0002_depends_on_unknown']
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#self.assertRaises(exceptions.DependsOnUnknownMigration,
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# depends_on_unknown.dependencies)
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#depends_on_higher = self.brokenapp['0003_depends_on_higher']
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#self.assertRaises(exceptions.DependsOnHigherMigration,
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# depends_on_higher.dependencies)
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class TestMigration(Monkeypatcher):
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installed_apps = ["fakeapp", "otherfakeapp"]
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def setUp(self):
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super(TestMigration, self).setUp()
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self.fakeapp = Migrations('fakeapp')
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self.otherfakeapp = Migrations('otherfakeapp')
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Migrations.calculate_dependencies(force=True)
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def test_str(self):
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migrations = [str(m) for m in self.fakeapp]
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self.assertEqual(['fakeapp:0001_spam',
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'fakeapp:0002_eggs',
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'fakeapp:0003_alter_spam'],
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migrations)
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def test_repr(self):
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migrations = [repr(m) for m in self.fakeapp]
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self.assertEqual(['<Migration: fakeapp:0001_spam>',
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'<Migration: fakeapp:0002_eggs>',
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'<Migration: fakeapp:0003_alter_spam>'],
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migrations)
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def test_app_label(self):
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self.assertEqual(['fakeapp', 'fakeapp', 'fakeapp'],
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[m.app_label() for m in self.fakeapp])
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def test_name(self):
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self.assertEqual(['0001_spam', '0002_eggs', '0003_alter_spam'],
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[m.name() for m in self.fakeapp])
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def test_full_name(self):
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self.assertEqual(['fakeapp.migrations.0001_spam',
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'fakeapp.migrations.0002_eggs',
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'fakeapp.migrations.0003_alter_spam'],
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[m.full_name() for m in self.fakeapp])
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def test_migration(self):
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# Can't use vanilla import, modules beginning with numbers aren't in grammar
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M1 = __import__("fakeapp.migrations.0001_spam", {}, {}, ['Migration']).Migration
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M2 = __import__("fakeapp.migrations.0002_eggs", {}, {}, ['Migration']).Migration
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M3 = __import__("fakeapp.migrations.0003_alter_spam", {}, {}, ['Migration']).Migration
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self.assertEqual([M1, M2, M3],
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[m.migration().Migration for m in self.fakeapp])
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self.assertRaises(exceptions.UnknownMigration,
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self.fakeapp['9999_unknown'].migration)
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def test_previous(self):
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self.assertEqual([None,
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self.fakeapp['0001_spam'],
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self.fakeapp['0002_eggs']],
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[m.previous() for m in self.fakeapp])
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def test_dependencies(self):
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"Test that the dependency detection works."
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self.assertEqual([
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set([]),
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set([self.fakeapp['0001_spam']]),
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set([self.fakeapp['0002_eggs']])
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],
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[m.dependencies for m in self.fakeapp],
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)
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self.assertEqual([
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set([self.fakeapp['0001_spam']]),
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set([self.otherfakeapp['0001_first']]),
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set([
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self.otherfakeapp['0002_second'],
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self.fakeapp['0003_alter_spam'],
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])
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],
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[m.dependencies for m in self.otherfakeapp],
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)
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def test_forwards_plan(self):
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self.assertEqual([
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[self.fakeapp['0001_spam']],
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[
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self.fakeapp['0001_spam'],
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self.fakeapp['0002_eggs']
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],
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[
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self.fakeapp['0001_spam'],
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self.fakeapp['0002_eggs'],
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self.fakeapp['0003_alter_spam'],
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]
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],
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[m.forwards_plan() for m in self.fakeapp],
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)
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self.assertEqual([
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[
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self.fakeapp['0001_spam'],
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self.otherfakeapp['0001_first']
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],
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[
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self.fakeapp['0001_spam'],
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self.otherfakeapp['0001_first'],
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self.otherfakeapp['0002_second']
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],
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[
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self.fakeapp['0001_spam'],
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self.otherfakeapp['0001_first'],
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self.otherfakeapp['0002_second'],
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self.fakeapp['0002_eggs'],
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self.fakeapp['0003_alter_spam'],
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self.otherfakeapp['0003_third'],
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]
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],
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[m.forwards_plan() for m in self.otherfakeapp],
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)
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def test_is_before(self):
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F1 = self.fakeapp['0001_spam']
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F2 = self.fakeapp['0002_eggs']
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F3 = self.fakeapp['0003_alter_spam']
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O1 = self.otherfakeapp['0001_first']
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O2 = self.otherfakeapp['0002_second']
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O3 = self.otherfakeapp['0003_third']
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self.assertTrue(F1.is_before(F2))
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self.assertTrue(F1.is_before(F3))
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self.assertTrue(F2.is_before(F3))
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self.assertEqual(O3.is_before(O1), False)
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self.assertEqual(O3.is_before(O2), False)
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self.assertEqual(O2.is_before(O2), False)
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self.assertEqual(O2.is_before(O1), False)
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self.assertEqual(F2.is_before(O1), None)
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self.assertEqual(F2.is_before(O2), None)
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self.assertEqual(F2.is_before(O3), None)
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class TestMigrationDependencies(Monkeypatcher):
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installed_apps = ['deps_a', 'deps_b', 'deps_c']
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def setUp(self):
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super(TestMigrationDependencies, self).setUp()
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self.deps_a = Migrations('deps_a')
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self.deps_b = Migrations('deps_b')
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self.deps_c = Migrations('deps_c')
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Migrations.calculate_dependencies(force=True)
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def test_dependencies(self):
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self.assertEqual(
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[
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set([]),
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set([self.deps_a['0001_a']]),
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set([self.deps_a['0002_a']]),
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set([
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self.deps_a['0003_a'],
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self.deps_b['0003_b'],
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]),
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set([self.deps_a['0004_a']]),
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],
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[m.dependencies for m in self.deps_a],
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)
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self.assertEqual(
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[
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set([]),
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set([
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self.deps_b['0001_b'],
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self.deps_a['0002_a']
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]),
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set([
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self.deps_b['0002_b'],
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self.deps_a['0003_a']
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]),
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set([self.deps_b['0003_b']]),
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set([self.deps_b['0004_b']]),
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],
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[m.dependencies for m in self.deps_b],
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)
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self.assertEqual(
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[
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set([]),
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set([self.deps_c['0001_c']]),
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set([self.deps_c['0002_c']]),
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set([self.deps_c['0003_c']]),
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set([
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self.deps_c['0004_c'],
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self.deps_a['0002_a']
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]),
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],
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[m.dependencies for m in self.deps_c],
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)
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def test_dependents(self):
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self.assertEqual([set([self.deps_a['0002_a']]),
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set([self.deps_c['0005_c'],
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self.deps_b['0002_b'],
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self.deps_a['0003_a']]),
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set([self.deps_b['0003_b'],
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self.deps_a['0004_a']]),
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set([self.deps_a['0005_a']]),
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set([])],
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[m.dependents for m in self.deps_a])
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self.assertEqual([set([self.deps_b['0002_b']]),
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set([self.deps_b['0003_b']]),
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set([self.deps_b['0004_b'],
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self.deps_a['0004_a']]),
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set([self.deps_b['0005_b']]),
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set([])],
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[m.dependents for m in self.deps_b])
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self.assertEqual([set([self.deps_c['0002_c']]),
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set([self.deps_c['0003_c']]),
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set([self.deps_c['0004_c']]),
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set([self.deps_c['0005_c']]),
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set([])],
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[m.dependents for m in self.deps_c])
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def test_forwards_plan(self):
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self.assertEqual([[self.deps_a['0001_a']],
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[self.deps_a['0001_a'],
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self.deps_a['0002_a']],
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[self.deps_a['0001_a'],
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self.deps_a['0002_a'],
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self.deps_a['0003_a']],
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[self.deps_b['0001_b'],
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self.deps_a['0001_a'],
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self.deps_a['0002_a'],
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self.deps_b['0002_b'],
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self.deps_a['0003_a'],
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self.deps_b['0003_b'],
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self.deps_a['0004_a']],
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[self.deps_b['0001_b'],
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self.deps_a['0001_a'],
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self.deps_a['0002_a'],
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self.deps_b['0002_b'],
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self.deps_a['0003_a'],
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self.deps_b['0003_b'],
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self.deps_a['0004_a'],
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self.deps_a['0005_a']]],
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[m.forwards_plan() for m in self.deps_a])
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self.assertEqual([[self.deps_b['0001_b']],
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[self.deps_b['0001_b'],
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self.deps_a['0001_a'],
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self.deps_a['0002_a'],
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self.deps_b['0002_b']],
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[self.deps_b['0001_b'],
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self.deps_a['0001_a'],
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self.deps_a['0002_a'],
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self.deps_b['0002_b'],
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self.deps_a['0003_a'],
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self.deps_b['0003_b']],
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[self.deps_b['0001_b'],
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self.deps_a['0001_a'],
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self.deps_a['0002_a'],
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self.deps_b['0002_b'],
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self.deps_a['0003_a'],
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self.deps_b['0003_b'],
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self.deps_b['0004_b']],
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[self.deps_b['0001_b'],
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self.deps_a['0001_a'],
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self.deps_a['0002_a'],
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self.deps_b['0002_b'],
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self.deps_a['0003_a'],
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self.deps_b['0003_b'],
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self.deps_b['0004_b'],
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self.deps_b['0005_b']]],
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[m.forwards_plan() for m in self.deps_b])
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self.assertEqual([[self.deps_c['0001_c']],
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[self.deps_c['0001_c'],
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self.deps_c['0002_c']],
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[self.deps_c['0001_c'],
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self.deps_c['0002_c'],
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self.deps_c['0003_c']],
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[self.deps_c['0001_c'],
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self.deps_c['0002_c'],
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self.deps_c['0003_c'],
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self.deps_c['0004_c']],
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[self.deps_c['0001_c'],
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self.deps_c['0002_c'],
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self.deps_c['0003_c'],
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self.deps_c['0004_c'],
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self.deps_a['0001_a'],
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self.deps_a['0002_a'],
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self.deps_c['0005_c']]],
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[m.forwards_plan() for m in self.deps_c])
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def test_backwards_plan(self):
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self.assertEqual([
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[
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self.deps_c['0005_c'],
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self.deps_b['0005_b'],
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self.deps_b['0004_b'],
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self.deps_a['0005_a'],
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self.deps_a['0004_a'],
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self.deps_b['0003_b'],
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self.deps_b['0002_b'],
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self.deps_a['0003_a'],
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self.deps_a['0002_a'],
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self.deps_a['0001_a'],
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],
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[
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self.deps_c['0005_c'],
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self.deps_b['0005_b'],
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self.deps_b['0004_b'],
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self.deps_a['0005_a'],
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self.deps_a['0004_a'],
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self.deps_b['0003_b'],
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self.deps_b['0002_b'],
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self.deps_a['0003_a'],
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self.deps_a['0002_a'],
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],
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[
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self.deps_b['0005_b'],
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self.deps_b['0004_b'],
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self.deps_a['0005_a'],
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self.deps_a['0004_a'],
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self.deps_b['0003_b'],
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self.deps_a['0003_a'],
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],
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[
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|
self.deps_a['0005_a'],
|
||
|
|
self.deps_a['0004_a'],
|
||
|
|
],
|
||
|
|
[
|
||
|
|
self.deps_a['0005_a'],
|
||
|
|
]
|
||
|
|
], [m.backwards_plan() for m in self.deps_a])
|
||
|
|
self.assertEqual([
|
||
|
|
[
|
||
|
|
self.deps_b['0005_b'],
|
||
|
|
self.deps_b['0004_b'],
|
||
|
|
self.deps_a['0005_a'],
|
||
|
|
self.deps_a['0004_a'],
|
||
|
|
self.deps_b['0003_b'],
|
||
|
|
self.deps_b['0002_b'],
|
||
|
|
self.deps_b['0001_b'],
|
||
|
|
],
|
||
|
|
[
|
||
|
|
self.deps_b['0005_b'],
|
||
|
|
self.deps_b['0004_b'],
|
||
|
|
self.deps_a['0005_a'],
|
||
|
|
self.deps_a['0004_a'],
|
||
|
|
self.deps_b['0003_b'],
|
||
|
|
self.deps_b['0002_b'],
|
||
|
|
],
|
||
|
|
[
|
||
|
|
self.deps_b['0005_b'],
|
||
|
|
self.deps_b['0004_b'],
|
||
|
|
self.deps_a['0005_a'],
|
||
|
|
self.deps_a['0004_a'],
|
||
|
|
self.deps_b['0003_b'],
|
||
|
|
],
|
||
|
|
[
|
||
|
|
self.deps_b['0005_b'],
|
||
|
|
self.deps_b['0004_b'],
|
||
|
|
],
|
||
|
|
[
|
||
|
|
self.deps_b['0005_b'],
|
||
|
|
],
|
||
|
|
], [m.backwards_plan() for m in self.deps_b])
|
||
|
|
self.assertEqual([
|
||
|
|
[
|
||
|
|
self.deps_c['0005_c'],
|
||
|
|
self.deps_c['0004_c'],
|
||
|
|
self.deps_c['0003_c'],
|
||
|
|
self.deps_c['0002_c'],
|
||
|
|
self.deps_c['0001_c'],
|
||
|
|
],
|
||
|
|
[
|
||
|
|
self.deps_c['0005_c'],
|
||
|
|
self.deps_c['0004_c'],
|
||
|
|
self.deps_c['0003_c'],
|
||
|
|
self.deps_c['0002_c'],
|
||
|
|
],
|
||
|
|
[
|
||
|
|
self.deps_c['0005_c'],
|
||
|
|
self.deps_c['0004_c'],
|
||
|
|
self.deps_c['0003_c'],
|
||
|
|
],
|
||
|
|
[
|
||
|
|
self.deps_c['0005_c'],
|
||
|
|
self.deps_c['0004_c'],
|
||
|
|
],
|
||
|
|
[self.deps_c['0005_c']]
|
||
|
|
], [m.backwards_plan() for m in self.deps_c])
|
||
|
|
|
||
|
|
|
||
|
|
class TestCircularDependencies(Monkeypatcher):
|
||
|
|
installed_apps = ["circular_a", "circular_b"]
|
||
|
|
|
||
|
|
def test_plans(self):
|
||
|
|
Migrations.calculate_dependencies(force=True)
|
||
|
|
circular_a = Migrations('circular_a')
|
||
|
|
circular_b = Migrations('circular_b')
|
||
|
|
self.assertRaises(
|
||
|
|
exceptions.CircularDependency,
|
||
|
|
circular_a[-1].forwards_plan,
|
||
|
|
)
|
||
|
|
self.assertRaises(
|
||
|
|
exceptions.CircularDependency,
|
||
|
|
circular_b[-1].forwards_plan,
|
||
|
|
)
|
||
|
|
self.assertRaises(
|
||
|
|
exceptions.CircularDependency,
|
||
|
|
circular_a[-1].backwards_plan,
|
||
|
|
)
|
||
|
|
self.assertRaises(
|
||
|
|
exceptions.CircularDependency,
|
||
|
|
circular_b[-1].backwards_plan,
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
class TestMigrations(Monkeypatcher):
|
||
|
|
installed_apps = ["fakeapp", "otherfakeapp"]
|
||
|
|
|
||
|
|
def test_all(self):
|
||
|
|
|
||
|
|
M1 = Migrations(__import__("fakeapp", {}, {}, ['']))
|
||
|
|
M2 = Migrations(__import__("otherfakeapp", {}, {}, ['']))
|
||
|
|
|
||
|
|
self.assertEqual(
|
||
|
|
[M1, M2],
|
||
|
|
list(all_migrations()),
|
||
|
|
)
|
||
|
|
|
||
|
|
def test(self):
|
||
|
|
|
||
|
|
M1 = Migrations(__import__("fakeapp", {}, {}, ['']))
|
||
|
|
|
||
|
|
self.assertEqual(M1, Migrations("fakeapp"))
|
||
|
|
self.assertEqual(M1, Migrations(self.create_fake_app("fakeapp")))
|
||
|
|
|
||
|
|
def test_application(self):
|
||
|
|
fakeapp = Migrations("fakeapp")
|
||
|
|
application = __import__("fakeapp", {}, {}, [''])
|
||
|
|
self.assertEqual(application, fakeapp.application)
|
||
|
|
|
||
|
|
def test_migration(self):
|
||
|
|
# 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
|
||
|
|
migration = Migrations('fakeapp')
|
||
|
|
self.assertEqual(M1, migration['0001_spam'].migration().Migration)
|
||
|
|
self.assertEqual(M2, migration['0002_eggs'].migration().Migration)
|
||
|
|
self.assertRaises(exceptions.UnknownMigration,
|
||
|
|
migration['0001_jam'].migration)
|
||
|
|
|
||
|
|
def test_guess_migration(self):
|
||
|
|
# Can't use vanilla import, modules beginning with numbers aren't in grammar
|
||
|
|
M1 = __import__("fakeapp.migrations.0001_spam", {}, {}, ['Migration']).Migration
|
||
|
|
migration = Migrations('fakeapp')
|
||
|
|
self.assertEqual(M1, migration.guess_migration("0001_spam").migration().Migration)
|
||
|
|
self.assertEqual(M1, migration.guess_migration("0001_spa").migration().Migration)
|
||
|
|
self.assertEqual(M1, migration.guess_migration("0001_sp").migration().Migration)
|
||
|
|
self.assertEqual(M1, migration.guess_migration("0001_s").migration().Migration)
|
||
|
|
self.assertEqual(M1, migration.guess_migration("0001_").migration().Migration)
|
||
|
|
self.assertEqual(M1, migration.guess_migration("0001").migration().Migration)
|
||
|
|
self.assertRaises(exceptions.UnknownMigration,
|
||
|
|
migration.guess_migration, "0001-spam")
|
||
|
|
self.assertRaises(exceptions.MultiplePrefixMatches,
|
||
|
|
migration.guess_migration, "000")
|
||
|
|
self.assertRaises(exceptions.MultiplePrefixMatches,
|
||
|
|
migration.guess_migration, "")
|
||
|
|
self.assertRaises(exceptions.UnknownMigration,
|
||
|
|
migration.guess_migration, "0001_spams")
|
||
|
|
self.assertRaises(exceptions.UnknownMigration,
|
||
|
|
migration.guess_migration, "0001_jam")
|
||
|
|
|
||
|
|
def test_app_label(self):
|
||
|
|
names = ['fakeapp', 'otherfakeapp']
|
||
|
|
self.assertEqual(names,
|
||
|
|
[Migrations(n).app_label() for n in names])
|
||
|
|
|
||
|
|
def test_full_name(self):
|
||
|
|
names = ['fakeapp', 'otherfakeapp']
|
||
|
|
self.assertEqual([n + '.migrations' for n in names],
|
||
|
|
[Migrations(n).full_name() for n in names])
|
||
|
|
|
||
|
|
|
||
|
|
class TestMigrationLogic(Monkeypatcher):
|
||
|
|
|
||
|
|
"""
|
||
|
|
Tests if the various logic functions in migration actually work.
|
||
|
|
"""
|
||
|
|
|
||
|
|
installed_apps = ["fakeapp", "otherfakeapp"]
|
||
|
|
|
||
|
|
def setUp(self):
|
||
|
|
super(TestMigrationLogic, self).setUp()
|
||
|
|
MigrationHistory.objects.all().delete()
|
||
|
|
|
||
|
|
def assertListEqual(self, list1, list2, msg=None):
|
||
|
|
list1 = set(list1)
|
||
|
|
list2 = set(list2)
|
||
|
|
return self.assert_(list1 == list2, "%s is not equal to %s" % (list1, list2))
|
||
|
|
|
||
|
|
def test_find_ghost_migrations(self):
|
||
|
|
pass
|
||
|
|
|
||
|
|
def test_apply_migrations(self):
|
||
|
|
migrations = Migrations("fakeapp")
|
||
|
|
|
||
|
|
# We should start with no migrations
|
||
|
|
self.assertEqual(list(MigrationHistory.objects.all()), [])
|
||
|
|
|
||
|
|
# Apply them normally
|
||
|
|
migrate_app(migrations, target_name=None, fake=False,
|
||
|
|
load_initial_data=True)
|
||
|
|
|
||
|
|
# We should finish with all migrations
|
||
|
|
self.assertListEqual(
|
||
|
|
(("fakeapp", "0001_spam"),
|
||
|
|
("fakeapp", "0002_eggs"),
|
||
|
|
("fakeapp", "0003_alter_spam"),),
|
||
|
|
MigrationHistory.objects.values_list("app_name", "migration"),
|
||
|
|
)
|
||
|
|
|
||
|
|
# Now roll them backwards
|
||
|
|
migrate_app(migrations, target_name="zero", fake=False)
|
||
|
|
|
||
|
|
# Finish with none
|
||
|
|
self.assertEqual(list(MigrationHistory.objects.all()), [])
|
||
|
|
|
||
|
|
|
||
|
|
def test_migration_merge_forwards(self):
|
||
|
|
migrations = Migrations("fakeapp")
|
||
|
|
|
||
|
|
# We should start with no migrations
|
||
|
|
self.assertEqual(list(MigrationHistory.objects.all()), [])
|
||
|
|
|
||
|
|
# Insert one in the wrong order
|
||
|
|
MigrationHistory.objects.create(app_name = "fakeapp",
|
||
|
|
migration = "0002_eggs",
|
||
|
|
applied = datetime.datetime.now())
|
||
|
|
|
||
|
|
# Did it go in?
|
||
|
|
self.assertListEqual(
|
||
|
|
(("fakeapp", "0002_eggs"),),
|
||
|
|
MigrationHistory.objects.values_list("app_name", "migration"),
|
||
|
|
)
|
||
|
|
|
||
|
|
# Apply them normally
|
||
|
|
self.assertRaises(exceptions.InconsistentMigrationHistory,
|
||
|
|
migrate_app,
|
||
|
|
migrations, target_name=None, fake=False)
|
||
|
|
self.assertRaises(exceptions.InconsistentMigrationHistory,
|
||
|
|
migrate_app,
|
||
|
|
migrations, target_name='zero', fake=False)
|
||
|
|
try:
|
||
|
|
migrate_app(migrations, target_name=None, fake=False)
|
||
|
|
except exceptions.InconsistentMigrationHistory as e:
|
||
|
|
self.assertEqual(
|
||
|
|
[
|
||
|
|
(
|
||
|
|
migrations['0002_eggs'],
|
||
|
|
migrations['0001_spam'],
|
||
|
|
)
|
||
|
|
],
|
||
|
|
e.problems,
|
||
|
|
)
|
||
|
|
try:
|
||
|
|
migrate_app(migrations, target_name="zero", fake=False)
|
||
|
|
except exceptions.InconsistentMigrationHistory as e:
|
||
|
|
self.assertEqual(
|
||
|
|
[
|
||
|
|
(
|
||
|
|
migrations['0002_eggs'],
|
||
|
|
migrations['0001_spam'],
|
||
|
|
)
|
||
|
|
],
|
||
|
|
e.problems,
|
||
|
|
)
|
||
|
|
|
||
|
|
# Nothing should have changed (no merge mode!)
|
||
|
|
self.assertListEqual(
|
||
|
|
(("fakeapp", "0002_eggs"),),
|
||
|
|
MigrationHistory.objects.values_list("app_name", "migration"),
|
||
|
|
)
|
||
|
|
|
||
|
|
# Apply with merge
|
||
|
|
migrate_app(migrations, target_name=None, merge=True, fake=False)
|
||
|
|
|
||
|
|
# We should finish with all migrations
|
||
|
|
self.assertListEqual(
|
||
|
|
(("fakeapp", "0001_spam"),
|
||
|
|
("fakeapp", "0002_eggs"),
|
||
|
|
("fakeapp", "0003_alter_spam"),),
|
||
|
|
MigrationHistory.objects.values_list("app_name", "migration"),
|
||
|
|
)
|
||
|
|
|
||
|
|
# Now roll them backwards
|
||
|
|
migrate_app(migrations, target_name="0002", fake=False)
|
||
|
|
migrate_app(migrations, target_name="0001", fake=True)
|
||
|
|
migrate_app(migrations, target_name="zero", fake=False)
|
||
|
|
|
||
|
|
# Finish with none
|
||
|
|
self.assertEqual(list(MigrationHistory.objects.all()), [])
|
||
|
|
|
||
|
|
def test_alter_column_null(self):
|
||
|
|
|
||
|
|
def null_ok(eat_exception=True):
|
||
|
|
from django.db import connection, transaction
|
||
|
|
# the DBAPI introspection module fails on postgres NULLs.
|
||
|
|
cursor = connection.cursor()
|
||
|
|
|
||
|
|
# SQLite has weird now()
|
||
|
|
if db.backend_name == "sqlite3":
|
||
|
|
now_func = "DATETIME('NOW')"
|
||
|
|
# So does SQLServer... should we be using a backend attribute?
|
||
|
|
elif db.backend_name == "pyodbc":
|
||
|
|
now_func = "GETDATE()"
|
||
|
|
elif db.backend_name == "oracle":
|
||
|
|
now_func = "SYSDATE"
|
||
|
|
else:
|
||
|
|
now_func = "NOW()"
|
||
|
|
|
||
|
|
try:
|
||
|
|
if db.backend_name == "pyodbc":
|
||
|
|
cursor.execute("SET IDENTITY_INSERT southtest_spam ON;")
|
||
|
|
cursor.execute("INSERT INTO southtest_spam (id, weight, expires, name) VALUES (100, NULL, %s, 'whatever');" % now_func)
|
||
|
|
except:
|
||
|
|
if eat_exception:
|
||
|
|
transaction.rollback()
|
||
|
|
return False
|
||
|
|
else:
|
||
|
|
raise
|
||
|
|
else:
|
||
|
|
cursor.execute("DELETE FROM southtest_spam")
|
||
|
|
transaction.commit()
|
||
|
|
return True
|
||
|
|
|
||
|
|
MigrationHistory.objects.all().delete()
|
||
|
|
migrations = Migrations("fakeapp")
|
||
|
|
|
||
|
|
# by default name is NOT NULL
|
||
|
|
migrate_app(migrations, target_name="0002", fake=False)
|
||
|
|
self.failIf(null_ok())
|
||
|
|
self.assertListEqual(
|
||
|
|
(("fakeapp", "0001_spam"),
|
||
|
|
("fakeapp", "0002_eggs"),),
|
||
|
|
MigrationHistory.objects.values_list("app_name", "migration"),
|
||
|
|
)
|
||
|
|
|
||
|
|
# after 0003, it should be NULL
|
||
|
|
migrate_app(migrations, target_name="0003", fake=False)
|
||
|
|
self.assert_(null_ok(False))
|
||
|
|
self.assertListEqual(
|
||
|
|
(("fakeapp", "0001_spam"),
|
||
|
|
("fakeapp", "0002_eggs"),
|
||
|
|
("fakeapp", "0003_alter_spam"),),
|
||
|
|
MigrationHistory.objects.values_list("app_name", "migration"),
|
||
|
|
)
|
||
|
|
|
||
|
|
# make sure it is NOT NULL again
|
||
|
|
migrate_app(migrations, target_name="0002", fake=False)
|
||
|
|
self.failIf(null_ok(), 'weight not null after migration')
|
||
|
|
self.assertListEqual(
|
||
|
|
(("fakeapp", "0001_spam"),
|
||
|
|
("fakeapp", "0002_eggs"),),
|
||
|
|
MigrationHistory.objects.values_list("app_name", "migration"),
|
||
|
|
)
|
||
|
|
|
||
|
|
# finish with no migrations, otherwise other tests fail...
|
||
|
|
migrate_app(migrations, target_name="zero", fake=False)
|
||
|
|
self.assertEqual(list(MigrationHistory.objects.all()), [])
|
||
|
|
|
||
|
|
def test_dependencies(self):
|
||
|
|
|
||
|
|
fakeapp = Migrations("fakeapp")
|
||
|
|
otherfakeapp = Migrations("otherfakeapp")
|
||
|
|
|
||
|
|
# Test a simple path
|
||
|
|
self.assertEqual([fakeapp['0001_spam'],
|
||
|
|
fakeapp['0002_eggs'],
|
||
|
|
fakeapp['0003_alter_spam']],
|
||
|
|
fakeapp['0003_alter_spam'].forwards_plan())
|
||
|
|
|
||
|
|
# And a complex one.
|
||
|
|
self.assertEqual(
|
||
|
|
[
|
||
|
|
fakeapp['0001_spam'],
|
||
|
|
otherfakeapp['0001_first'],
|
||
|
|
otherfakeapp['0002_second'],
|
||
|
|
fakeapp['0002_eggs'],
|
||
|
|
fakeapp['0003_alter_spam'],
|
||
|
|
otherfakeapp['0003_third']
|
||
|
|
],
|
||
|
|
otherfakeapp['0003_third'].forwards_plan(),
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
class TestMigrationUtils(Monkeypatcher):
|
||
|
|
installed_apps = ["fakeapp", "otherfakeapp"]
|
||
|
|
|
||
|
|
def test_get_app_label(self):
|
||
|
|
self.assertEqual(
|
||
|
|
"southtest",
|
||
|
|
get_app_label(self.create_fake_app("southtest.models")),
|
||
|
|
)
|
||
|
|
self.assertEqual(
|
||
|
|
"baz",
|
||
|
|
get_app_label(self.create_fake_app("foo.bar.baz.models")),
|
||
|
|
)
|
||
|
|
|
||
|
|
class TestUtils(unittest.TestCase):
|
||
|
|
|
||
|
|
def test_flatten(self):
|
||
|
|
self.assertEqual([], list(flatten(iter([]))))
|
||
|
|
self.assertEqual([], list(flatten(iter([iter([]), ]))))
|
||
|
|
self.assertEqual([1], list(flatten(iter([1]))))
|
||
|
|
self.assertEqual([1, 2], list(flatten(iter([1, 2]))))
|
||
|
|
self.assertEqual([1, 2], list(flatten(iter([iter([1]), 2]))))
|
||
|
|
self.assertEqual([1, 2], list(flatten(iter([iter([1, 2])]))))
|
||
|
|
self.assertEqual([1, 2, 3], list(flatten(iter([iter([1, 2]), 3]))))
|
||
|
|
self.assertEqual([1, 2, 3],
|
||
|
|
list(flatten(iter([iter([1]), iter([2]), 3]))))
|
||
|
|
self.assertEqual([1, 2, 3],
|
||
|
|
list(flatten([[1], [2], 3])))
|
||
|
|
|
||
|
|
def test_depends(self):
|
||
|
|
graph = {'A1': []}
|
||
|
|
self.assertEqual(['A1'],
|
||
|
|
depends('A1', lambda n: graph[n]))
|
||
|
|
graph = {'A1': [],
|
||
|
|
'A2': ['A1'],
|
||
|
|
'A3': ['A2']}
|
||
|
|
self.assertEqual(['A1', 'A2', 'A3'],
|
||
|
|
depends('A3', lambda n: graph[n]))
|
||
|
|
graph = {'A1': [],
|
||
|
|
'A2': ['A1'],
|
||
|
|
'A3': ['A2', 'A1']}
|
||
|
|
self.assertEqual(['A1', 'A2', 'A3'],
|
||
|
|
depends('A3', lambda n: graph[n]))
|
||
|
|
graph = {'A1': [],
|
||
|
|
'A2': ['A1'],
|
||
|
|
'A3': ['A2', 'A1', 'B1'],
|
||
|
|
'B1': []}
|
||
|
|
self.assertEqual(
|
||
|
|
['B1', 'A1', 'A2', 'A3'],
|
||
|
|
depends('A3', lambda n: graph[n]),
|
||
|
|
)
|
||
|
|
graph = {'A1': [],
|
||
|
|
'A2': ['A1'],
|
||
|
|
'A3': ['A2', 'A1', 'B2'],
|
||
|
|
'B1': [],
|
||
|
|
'B2': ['B1']}
|
||
|
|
self.assertEqual(
|
||
|
|
['B1', 'B2', 'A1', 'A2', 'A3'],
|
||
|
|
depends('A3', lambda n: graph[n]),
|
||
|
|
)
|
||
|
|
graph = {'A1': [],
|
||
|
|
'A2': ['A1', 'B1'],
|
||
|
|
'A3': ['A2'],
|
||
|
|
'B1': ['A1']}
|
||
|
|
self.assertEqual(['A1', 'B1', 'A2', 'A3'],
|
||
|
|
depends('A3', lambda n: graph[n]))
|
||
|
|
graph = {'A1': [],
|
||
|
|
'A2': ['A1'],
|
||
|
|
'A3': ['A2', 'A1', 'B2'],
|
||
|
|
'B1': [],
|
||
|
|
'B2': ['B1', 'C1'],
|
||
|
|
'C1': ['B1']}
|
||
|
|
self.assertEqual(
|
||
|
|
['B1', 'C1', 'B2', 'A1', 'A2', 'A3'],
|
||
|
|
depends('A3', lambda n: graph[n]),
|
||
|
|
)
|
||
|
|
graph = {'A1': [],
|
||
|
|
'A2': ['A1'],
|
||
|
|
'A3': ['A2', 'B2', 'A1', 'C1'],
|
||
|
|
'B1': ['A1'],
|
||
|
|
'B2': ['B1', 'C2', 'A1'],
|
||
|
|
'C1': ['B1'],
|
||
|
|
'C2': ['C1', 'A1'],
|
||
|
|
'C3': ['C2']}
|
||
|
|
self.assertEqual(
|
||
|
|
['A1', 'B1', 'C1', 'C2', 'B2', 'A2', 'A3'],
|
||
|
|
depends('A3', lambda n: graph[n]),
|
||
|
|
)
|
||
|
|
|
||
|
|
def assertCircularDependency(self, trace, target, graph):
|
||
|
|
"Custom assertion that checks a circular dependency is detected correctly."
|
||
|
|
self.assertRaises(
|
||
|
|
exceptions.CircularDependency,
|
||
|
|
depends,
|
||
|
|
target,
|
||
|
|
lambda n: graph[n],
|
||
|
|
)
|
||
|
|
try:
|
||
|
|
depends(target, lambda n: graph[n])
|
||
|
|
except exceptions.CircularDependency as e:
|
||
|
|
self.assertEqual(trace, e.trace)
|
||
|
|
|
||
|
|
def test_depends_cycle(self):
|
||
|
|
graph = {'A1': ['A1']}
|
||
|
|
self.assertCircularDependency(
|
||
|
|
['A1', 'A1'],
|
||
|
|
'A1',
|
||
|
|
graph,
|
||
|
|
)
|
||
|
|
graph = {'A1': [],
|
||
|
|
'A2': ['A1', 'A2'],
|
||
|
|
'A3': ['A2']}
|
||
|
|
self.assertCircularDependency(
|
||
|
|
['A2', 'A2'],
|
||
|
|
'A3',
|
||
|
|
graph,
|
||
|
|
)
|
||
|
|
graph = {'A1': [],
|
||
|
|
'A2': ['A1'],
|
||
|
|
'A3': ['A2', 'A3'],
|
||
|
|
'A4': ['A3']}
|
||
|
|
self.assertCircularDependency(
|
||
|
|
['A3', 'A3'],
|
||
|
|
'A4',
|
||
|
|
graph,
|
||
|
|
)
|
||
|
|
graph = {'A1': ['B1'],
|
||
|
|
'B1': ['A1']}
|
||
|
|
self.assertCircularDependency(
|
||
|
|
['A1', 'B1', 'A1'],
|
||
|
|
'A1',
|
||
|
|
graph,
|
||
|
|
)
|
||
|
|
graph = {'A1': [],
|
||
|
|
'A2': ['A1', 'B2'],
|
||
|
|
'A3': ['A2'],
|
||
|
|
'B1': [],
|
||
|
|
'B2': ['B1', 'A2'],
|
||
|
|
'B3': ['B2']}
|
||
|
|
self.assertCircularDependency(
|
||
|
|
['A2', 'B2', 'A2'],
|
||
|
|
'A3',
|
||
|
|
graph,
|
||
|
|
)
|
||
|
|
graph = {'A1': [],
|
||
|
|
'A2': ['A1', 'B3'],
|
||
|
|
'A3': ['A2'],
|
||
|
|
'B1': [],
|
||
|
|
'B2': ['B1', 'A2'],
|
||
|
|
'B3': ['B2']}
|
||
|
|
self.assertCircularDependency(
|
||
|
|
['A2', 'B3', 'B2', 'A2'],
|
||
|
|
'A3',
|
||
|
|
graph,
|
||
|
|
)
|
||
|
|
graph = {'A1': [],
|
||
|
|
'A2': ['A1'],
|
||
|
|
'A3': ['A2', 'B2'],
|
||
|
|
'A4': ['A3'],
|
||
|
|
'B1': ['A3'],
|
||
|
|
'B2': ['B1']}
|
||
|
|
self.assertCircularDependency(
|
||
|
|
['A3', 'B2', 'B1', 'A3'],
|
||
|
|
'A4',
|
||
|
|
graph,
|
||
|
|
)
|
||
|
|
|
||
|
|
class TestManualChanges(Monkeypatcher):
|
||
|
|
installed_apps = ["fakeapp", "otherfakeapp"]
|
||
|
|
|
||
|
|
def test_suggest_name(self):
|
||
|
|
migrations = Migrations('fakeapp')
|
||
|
|
change = ManualChanges(migrations,
|
||
|
|
[],
|
||
|
|
['fakeapp.slug'],
|
||
|
|
[])
|
||
|
|
self.assertEquals(change.suggest_name(),
|
||
|
|
'add_field_fakeapp_slug')
|
||
|
|
|
||
|
|
change = ManualChanges(migrations,
|
||
|
|
[],
|
||
|
|
[],
|
||
|
|
['fakeapp.slug'])
|
||
|
|
self.assertEquals(change.suggest_name(),
|
||
|
|
'add_index_fakeapp_slug')
|