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# coding: utf-8
import os
import re
from alembic import command, util, compat
from alembic.script import ScriptDirectory, Script
from alembic.testing.env import clear_staging_env, staging_env, \
_sqlite_testing_config, write_script, _sqlite_file_db, \
three_rev_fixture, _no_sql_testing_config
from alembic.testing import eq_, assert_raises_message
from alembic.testing.fixtures import TestBase, capture_context_buffer
class ApplyVersionsFunctionalTest(TestBase):
__only_on__ = 'sqlite'
sourceless = False
def setUp(self):
self.bind = _sqlite_file_db()
self.env = staging_env(sourceless=self.sourceless)
self.cfg = _sqlite_testing_config(sourceless=self.sourceless)
def tearDown(self):
clear_staging_env()
def test_steps(self):
self._test_001_revisions()
self._test_002_upgrade()
self._test_003_downgrade()
self._test_004_downgrade()
self._test_005_upgrade()
self._test_006_upgrade_again()
def _test_001_revisions(self):
self.a = a = util.rev_id()
self.b = b = util.rev_id()
self.c = c = util.rev_id()
script = ScriptDirectory.from_config(self.cfg)
script.generate_revision(a, None, refresh=True)
write_script(script, a, """
revision = '%s'
down_revision = None
from alembic import op
def upgrade():
op.execute("CREATE TABLE foo(id integer)")
def downgrade():
op.execute("DROP TABLE foo")
""" % a, sourceless=self.sourceless)
script.generate_revision(b, None, refresh=True)
write_script(script, b, """
revision = '%s'
down_revision = '%s'
from alembic import op
def upgrade():
op.execute("CREATE TABLE bar(id integer)")
def downgrade():
op.execute("DROP TABLE bar")
""" % (b, a), sourceless=self.sourceless)
script.generate_revision(c, None, refresh=True)
write_script(script, c, """
revision = '%s'
down_revision = '%s'
from alembic import op
def upgrade():
op.execute("CREATE TABLE bat(id integer)")
def downgrade():
op.execute("DROP TABLE bat")
""" % (c, b), sourceless=self.sourceless)
def _test_002_upgrade(self):
command.upgrade(self.cfg, self.c)
db = self.bind
assert db.dialect.has_table(db.connect(), 'foo')
assert db.dialect.has_table(db.connect(), 'bar')
assert db.dialect.has_table(db.connect(), 'bat')
def _test_003_downgrade(self):
command.downgrade(self.cfg, self.a)
db = self.bind
assert db.dialect.has_table(db.connect(), 'foo')
assert not db.dialect.has_table(db.connect(), 'bar')
assert not db.dialect.has_table(db.connect(), 'bat')
def _test_004_downgrade(self):
command.downgrade(self.cfg, 'base')
db = self.bind
assert not db.dialect.has_table(db.connect(), 'foo')
assert not db.dialect.has_table(db.connect(), 'bar')
assert not db.dialect.has_table(db.connect(), 'bat')
def _test_005_upgrade(self):
command.upgrade(self.cfg, self.b)
db = self.bind
assert db.dialect.has_table(db.connect(), 'foo')
assert db.dialect.has_table(db.connect(), 'bar')
assert not db.dialect.has_table(db.connect(), 'bat')
def _test_006_upgrade_again(self):
command.upgrade(self.cfg, self.b)
db = self.bind
assert db.dialect.has_table(db.connect(), 'foo')
assert db.dialect.has_table(db.connect(), 'bar')
assert not db.dialect.has_table(db.connect(), 'bat')
class SourcelessApplyVersionsTest(ApplyVersionsFunctionalTest):
sourceless = True
class TransactionalDDLTest(TestBase):
def setUp(self):
self.env = staging_env()
self.cfg = cfg = _no_sql_testing_config()
cfg.set_main_option('dialect_name', 'sqlite')
cfg.remove_main_option('url')
self.a, self.b, self.c = three_rev_fixture(cfg)
def tearDown(self):
clear_staging_env()
def test_begin_commit_transactional_ddl(self):
with capture_context_buffer(transactional_ddl=True) as buf:
command.upgrade(self.cfg, self.c, sql=True)
assert re.match(
(r"^BEGIN;\s+CREATE TABLE.*?%s.*" % self.a) +
(r".*%s" % self.b) +
(r".*%s.*?COMMIT;.*$" % self.c),
buf.getvalue(), re.S)
def test_begin_commit_nontransactional_ddl(self):
with capture_context_buffer(transactional_ddl=False) as buf:
command.upgrade(self.cfg, self.a, sql=True)
assert re.match(r"^CREATE TABLE.*?\n+$", buf.getvalue(), re.S)
assert "COMMIT;" not in buf.getvalue()
def test_begin_commit_per_rev_ddl(self):
with capture_context_buffer(transaction_per_migration=True) as buf:
command.upgrade(self.cfg, self.c, sql=True)
assert re.match(
(r"^BEGIN;\s+CREATE TABLE.*%s.*?COMMIT;.*" % self.a) +
(r"BEGIN;.*?%s.*?COMMIT;.*" % self.b) +
(r"BEGIN;.*?%s.*?COMMIT;.*$" % self.c),
buf.getvalue(), re.S)
class EncodingTest(TestBase):
def setUp(self):
self.env = staging_env()
self.cfg = cfg = _no_sql_testing_config()
cfg.set_main_option('dialect_name', 'sqlite')
cfg.remove_main_option('url')
self.a = util.rev_id()
script = ScriptDirectory.from_config(cfg)
script.generate_revision(self.a, "revision a", refresh=True)
write_script(script, self.a, (compat.u("""# coding: utf-8
from __future__ import unicode_literals
revision = '%s'
down_revision = None
from alembic import op
def upgrade():
op.execute("« S’il vous plaît…")
def downgrade():
op.execute("drôle de petite voix m’a réveillé")
""") % self.a), encoding='utf-8')
def tearDown(self):
clear_staging_env()
def test_encode(self):
with capture_context_buffer(
bytes_io=True,
output_encoding='utf-8'
) as buf:
command.upgrade(self.cfg, self.a, sql=True)
assert compat.u("« S’il vous plaît…").encode("utf-8") in buf.getvalue()
class VersionNameTemplateTest(TestBase):
def setUp(self):
self.env = staging_env()
self.cfg = _sqlite_testing_config()
def tearDown(self):
clear_staging_env()
def test_option(self):
self.cfg.set_main_option("file_template", "myfile_%%(slug)s")
script = ScriptDirectory.from_config(self.cfg)
a = util.rev_id()
script.generate_revision(a, "some message", refresh=True)
write_script(script, a, """
revision = '%s'
down_revision = None
from alembic import op
def upgrade():
op.execute("CREATE TABLE foo(id integer)")
def downgrade():
op.execute("DROP TABLE foo")
""" % a)
script = ScriptDirectory.from_config(self.cfg)
rev = script.get_revision(a)
eq_(rev.revision, a)
eq_(os.path.basename(rev.path), "myfile_some_message.py")
def test_lookup_legacy(self):
self.cfg.set_main_option("file_template", "%%(rev)s")
script = ScriptDirectory.from_config(self.cfg)
a = util.rev_id()
script.generate_revision(a, None, refresh=True)
write_script(script, a, """
down_revision = None
from alembic import op
def upgrade():
op.execute("CREATE TABLE foo(id integer)")
def downgrade():
op.execute("DROP TABLE foo")
""")
script = ScriptDirectory.from_config(self.cfg)
rev = script.get_revision(a)
eq_(rev.revision, a)
eq_(os.path.basename(rev.path), "%s.py" % a)
def test_error_on_new_with_missing_revision(self):
self.cfg.set_main_option("file_template", "%%(slug)s_%%(rev)s")
script = ScriptDirectory.from_config(self.cfg)
a = util.rev_id()
script.generate_revision(a, "foobar", refresh=True)
path = script.get_revision(a).path
with open(path, 'w') as fp:
fp.write("""
down_revision = None
from alembic import op
def upgrade():
op.execute("CREATE TABLE foo(id integer)")
def downgrade():
op.execute("DROP TABLE foo")
""")
pyc_path = util.pyc_file_from_path(path)
if os.access(pyc_path, os.F_OK):
os.unlink(pyc_path)
assert_raises_message(
util.CommandError,
"Could not determine revision id from filename foobar_%s.py. "
"Be sure the 'revision' variable is declared "
"inside the script." % a,
Script._from_path, script, path)
class IgnoreInitTest(TestBase):
sourceless = False
def setUp(self):
self.bind = _sqlite_file_db()
self.env = staging_env(sourceless=self.sourceless)
self.cfg = _sqlite_testing_config(sourceless=self.sourceless)
def tearDown(self):
clear_staging_env()
def _test_ignore_init_py(self, ext):
"""test that __init__.py is ignored."""
command.revision(self.cfg, message="some rev")
script = ScriptDirectory.from_config(self.cfg)
path = os.path.join(script.versions, "__init__.%s" % ext)
with open(path, 'w') as f:
f.write(
"crap, crap -> crap"
)
command.revision(self.cfg, message="another rev")
script.get_revision('head')
def test_ignore_py(self):
self._test_ignore_init_py("py")
def test_ignore_pyc(self):
self._test_ignore_init_py("pyc")
def test_ignore_pyx(self):
self._test_ignore_init_py("pyx")
def test_ignore_pyo(self):
self._test_ignore_init_py("pyo")
class SourcelessIgnoreInitTest(IgnoreInitTest):
sourceless = True
class SourcelessNeedsFlagTest(TestBase):
def setUp(self):
self.env = staging_env(sourceless=False)
self.cfg = _sqlite_testing_config()
def tearDown(self):
clear_staging_env()
def test_needs_flag(self):
a = util.rev_id()
script = ScriptDirectory.from_config(self.cfg)
script.generate_revision(a, None, refresh=True)
write_script(script, a, """
revision = '%s'
down_revision = None
from alembic import op
def upgrade():
op.execute("CREATE TABLE foo(id integer)")
def downgrade():
op.execute("DROP TABLE foo")
""" % a, sourceless=True)
script = ScriptDirectory.from_config(self.cfg)
eq_(script.get_heads(), [])
self.cfg.set_main_option("sourceless", "true")
script = ScriptDirectory.from_config(self.cfg)
eq_(script.get_heads(), [a])
|
