/usr/lib/python2.7/dist-packages/migrate/tests/versioning/test_schema.py is in python-migrate 0.9.1-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 | #!/usr/bin/env python
# -*- coding: utf-8 -*-
import os
import shutil
import six
from migrate import exceptions
from migrate.versioning.schema import *
from migrate.versioning import script, schemadiff
from sqlalchemy import *
from migrate.tests import fixture
class TestControlledSchema(fixture.Pathed, fixture.DB):
# Transactions break postgres in this test; we'll clean up after ourselves
level = fixture.DB.CONNECT
def setUp(self):
super(TestControlledSchema, self).setUp()
self.path_repos = self.temp_usable_dir + '/repo/'
self.repos = Repository.create(self.path_repos, 'repo_name')
def _setup(self, url):
self.setUp()
super(TestControlledSchema, self)._setup(url)
self.cleanup()
def _teardown(self):
super(TestControlledSchema, self)._teardown()
self.cleanup()
self.tearDown()
def cleanup(self):
# drop existing version table if necessary
try:
ControlledSchema(self.engine, self.repos).drop()
except:
# No table to drop; that's fine, be silent
pass
def tearDown(self):
self.cleanup()
super(TestControlledSchema, self).tearDown()
@fixture.usedb()
def test_version_control(self):
"""Establish version control on a particular database"""
# Establish version control on this database
dbcontrol = ControlledSchema.create(self.engine, self.repos)
# Trying to create another DB this way fails: table exists
self.assertRaises(exceptions.DatabaseAlreadyControlledError,
ControlledSchema.create, self.engine, self.repos)
# We can load a controlled DB this way, too
dbcontrol0 = ControlledSchema(self.engine, self.repos)
self.assertEqual(dbcontrol, dbcontrol0)
# We can also use a repository path, instead of a repository
dbcontrol0 = ControlledSchema(self.engine, self.repos.path)
self.assertEqual(dbcontrol, dbcontrol0)
# We don't have to use the same connection
engine = create_engine(self.url)
dbcontrol0 = ControlledSchema(engine, self.repos.path)
self.assertEqual(dbcontrol, dbcontrol0)
# Clean up:
dbcontrol.drop()
# Attempting to drop vc from a db without it should fail
self.assertRaises(exceptions.DatabaseNotControlledError, dbcontrol.drop)
# No table defined should raise error
self.assertRaises(exceptions.DatabaseNotControlledError,
ControlledSchema, self.engine, self.repos)
@fixture.usedb()
def test_version_control_specified(self):
"""Establish version control with a specified version"""
# Establish version control on this database
version = 0
dbcontrol = ControlledSchema.create(self.engine, self.repos, version)
self.assertEqual(dbcontrol.version, version)
# Correct when we load it, too
dbcontrol = ControlledSchema(self.engine, self.repos)
self.assertEqual(dbcontrol.version, version)
dbcontrol.drop()
# Now try it with a nonzero value
version = 10
for i in range(version):
self.repos.create_script('')
self.assertEqual(self.repos.latest, version)
# Test with some mid-range value
dbcontrol = ControlledSchema.create(self.engine,self.repos, 5)
self.assertEqual(dbcontrol.version, 5)
dbcontrol.drop()
# Test with max value
dbcontrol = ControlledSchema.create(self.engine, self.repos, version)
self.assertEqual(dbcontrol.version, version)
dbcontrol.drop()
@fixture.usedb()
def test_version_control_invalid(self):
"""Try to establish version control with an invalid version"""
versions = ('Thirteen', '-1', -1, '' , 13)
# A fresh repository doesn't go up to version 13 yet
for version in versions:
#self.assertRaises(ControlledSchema.InvalidVersionError,
# Can't have custom errors with assertRaises...
try:
ControlledSchema.create(self.engine, self.repos, version)
self.assertTrue(False, repr(version))
except exceptions.InvalidVersionError:
pass
@fixture.usedb()
def test_changeset(self):
"""Create changeset from controlled schema"""
dbschema = ControlledSchema.create(self.engine, self.repos)
# empty schema doesn't have changesets
cs = dbschema.changeset()
self.assertEqual(cs, {})
for i in range(5):
self.repos.create_script('')
self.assertEqual(self.repos.latest, 5)
cs = dbschema.changeset(5)
self.assertEqual(len(cs), 5)
# cleanup
dbschema.drop()
@fixture.usedb()
def test_upgrade_runchange(self):
dbschema = ControlledSchema.create(self.engine, self.repos)
for i in range(10):
self.repos.create_script('')
self.assertEqual(self.repos.latest, 10)
dbschema.upgrade(10)
self.assertRaises(ValueError, dbschema.upgrade, 'a')
self.assertRaises(exceptions.InvalidVersionError, dbschema.runchange, 20, '', 1)
# TODO: test for table version in db
# cleanup
dbschema.drop()
@fixture.usedb()
def test_create_model(self):
"""Test workflow to generate create_model"""
model = ControlledSchema.create_model(self.engine, self.repos, declarative=False)
self.assertTrue(isinstance(model, six.string_types))
model = ControlledSchema.create_model(self.engine, self.repos.path, declarative=True)
self.assertTrue(isinstance(model, six.string_types))
@fixture.usedb()
def test_compare_model_to_db(self):
meta = self.construct_model()
diff = ControlledSchema.compare_model_to_db(self.engine, meta, self.repos)
self.assertTrue(isinstance(diff, schemadiff.SchemaDiff))
diff = ControlledSchema.compare_model_to_db(self.engine, meta, self.repos.path)
self.assertTrue(isinstance(diff, schemadiff.SchemaDiff))
meta.drop_all(self.engine)
@fixture.usedb()
def test_update_db_from_model(self):
dbschema = ControlledSchema.create(self.engine, self.repos)
meta = self.construct_model()
dbschema.update_db_from_model(meta)
# TODO: test for table version in db
# cleanup
dbschema.drop()
meta.drop_all(self.engine)
def construct_model(self):
meta = MetaData()
user = Table('temp_model_schema', meta, Column('id', Integer), Column('user', String(245)))
return meta
# TODO: test how are tables populated in db
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