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from alembic.testing.fixtures import TestBase, capture_context_buffer
from alembic import command, util
from alembic.testing import assert_raises_message
from alembic.testing.env import staging_env, _no_sql_testing_config, \
three_rev_fixture, clear_staging_env, env_file_fixture
import re
a = b = c = None
class OfflineEnvironmentTest(TestBase):
def setUp(self):
staging_env()
self.cfg = _no_sql_testing_config()
global a, b, c
a, b, c = three_rev_fixture(self.cfg)
def tearDown(self):
clear_staging_env()
def test_not_requires_connection(self):
env_file_fixture("""
assert not context.requires_connection()
""")
command.upgrade(self.cfg, a, sql=True)
command.downgrade(self.cfg, "%s:%s" % (b, a), sql=True)
def test_requires_connection(self):
env_file_fixture("""
assert context.requires_connection()
""")
command.upgrade(self.cfg, a)
command.downgrade(self.cfg, a)
def test_starting_rev_post_context(self):
env_file_fixture("""
context.configure(dialect_name='sqlite', starting_rev='x')
assert context.get_starting_revision_argument() == 'x'
""")
command.upgrade(self.cfg, a, sql=True)
command.downgrade(self.cfg, "%s:%s" % (b, a), sql=True)
command.current(self.cfg)
command.stamp(self.cfg, a)
def test_starting_rev_pre_context(self):
env_file_fixture("""
assert context.get_starting_revision_argument() == 'x'
""")
command.upgrade(self.cfg, "x:y", sql=True)
command.downgrade(self.cfg, "x:y", sql=True)
def test_starting_rev_pre_context_cmd_w_no_startrev(self):
env_file_fixture("""
assert context.get_starting_revision_argument() == 'x'
""")
assert_raises_message(
util.CommandError,
"No starting revision argument is available.",
command.current, self.cfg)
def test_starting_rev_current_pre_context(self):
env_file_fixture("""
assert context.get_starting_revision_argument() is None
""")
assert_raises_message(
util.CommandError,
"No starting revision argument is available.",
command.current, self.cfg
)
def test_destination_rev_pre_context(self):
env_file_fixture("""
assert context.get_revision_argument() == '%s'
""" % b)
command.upgrade(self.cfg, b, sql=True)
command.stamp(self.cfg, b, sql=True)
command.downgrade(self.cfg, "%s:%s" % (c, b), sql=True)
def test_destination_rev_post_context(self):
env_file_fixture("""
context.configure(dialect_name='sqlite')
assert context.get_revision_argument() == '%s'
""" % b)
command.upgrade(self.cfg, b, sql=True)
command.downgrade(self.cfg, "%s:%s" % (c, b), sql=True)
command.stamp(self.cfg, b, sql=True)
def test_head_rev_pre_context(self):
env_file_fixture("""
assert context.get_head_revision() == '%s'
""" % c)
command.upgrade(self.cfg, b, sql=True)
command.downgrade(self.cfg, "%s:%s" % (b, a), sql=True)
command.stamp(self.cfg, b, sql=True)
command.current(self.cfg)
def test_head_rev_post_context(self):
env_file_fixture("""
context.configure(dialect_name='sqlite')
assert context.get_head_revision() == '%s'
""" % c)
command.upgrade(self.cfg, b, sql=True)
command.downgrade(self.cfg, "%s:%s" % (b, a), sql=True)
command.stamp(self.cfg, b, sql=True)
command.current(self.cfg)
def test_tag_pre_context(self):
env_file_fixture("""
assert context.get_tag_argument() == 'hi'
""")
command.upgrade(self.cfg, b, sql=True, tag='hi')
command.downgrade(self.cfg, "%s:%s" % (b, a), sql=True, tag='hi')
def test_tag_pre_context_None(self):
env_file_fixture("""
assert context.get_tag_argument() is None
""")
command.upgrade(self.cfg, b, sql=True)
command.downgrade(self.cfg, "%s:%s" % (b, a), sql=True)
def test_tag_cmd_arg(self):
env_file_fixture("""
context.configure(dialect_name='sqlite')
assert context.get_tag_argument() == 'hi'
""")
command.upgrade(self.cfg, b, sql=True, tag='hi')
command.downgrade(self.cfg, "%s:%s" % (b, a), sql=True, tag='hi')
def test_tag_cfg_arg(self):
env_file_fixture("""
context.configure(dialect_name='sqlite', tag='there')
assert context.get_tag_argument() == 'there'
""")
command.upgrade(self.cfg, b, sql=True, tag='hi')
command.downgrade(self.cfg, "%s:%s" % (b, a), sql=True, tag='hi')
def test_tag_None(self):
env_file_fixture("""
context.configure(dialect_name='sqlite')
assert context.get_tag_argument() is None
""")
command.upgrade(self.cfg, b, sql=True)
command.downgrade(self.cfg, "%s:%s" % (b, a), sql=True)
def test_downgrade_wo_colon(self):
env_file_fixture("""
context.configure(dialect_name='sqlite')
""")
assert_raises_message(
util.CommandError,
"downgrade with --sql requires <fromrev>:<torev>",
command.downgrade,
self.cfg, b, sql=True
)
def test_upgrade_with_output_encoding(self):
env_file_fixture("""
url = config.get_main_option('sqlalchemy.url')
context.configure(url=url, output_encoding='utf-8')
assert not context.requires_connection()
""")
command.upgrade(self.cfg, a, sql=True)
command.downgrade(self.cfg, "%s:%s" % (b, a), sql=True)
def test_running_comments_not_in_sql(self):
message = "this is a very long \nand multiline\nmessage"
d = command.revision(self.cfg, message=message)
with capture_context_buffer(transactional_ddl=True) as buf:
command.upgrade(self.cfg, "%s:%s" % (a, d.revision), sql=True)
assert not re.match(r".*-- .*and multiline", buf.getvalue(), re.S | re.M)
def test_starting_rev_pre_context_abbreviated(self):
env_file_fixture("""
assert context.get_starting_revision_argument() == '%s'
""" % b[0:4])
command.upgrade(self.cfg, "%s:%s" % (b[0:4], c), sql=True)
command.stamp(self.cfg, "%s:%s" % (b[0:4], c), sql=True)
command.downgrade(self.cfg, "%s:%s" % (b[0:4], a), sql=True)
def test_destination_rev_pre_context_abbreviated(self):
env_file_fixture("""
assert context.get_revision_argument() == '%s'
""" % b[0:4])
command.upgrade(self.cfg, "%s:%s" % (a, b[0:4]), sql=True)
command.stamp(self.cfg, b[0:4], sql=True)
command.downgrade(self.cfg, "%s:%s" % (c, b[0:4]), sql=True)
def test_starting_rev_context_runs_abbreviated(self):
env_file_fixture("""
context.configure(dialect_name='sqlite')
context.run_migrations()
""")
command.upgrade(self.cfg, "%s:%s" % (b[0:4], c), sql=True)
command.downgrade(self.cfg, "%s:%s" % (b[0:4], a), sql=True)
def test_destination_rev_context_runs_abbreviated(self):
env_file_fixture("""
context.configure(dialect_name='sqlite')
context.run_migrations()
""")
command.upgrade(self.cfg, "%s:%s" % (a, b[0:4]), sql=True)
command.stamp(self.cfg, b[0:4], sql=True)
command.downgrade(self.cfg, "%s:%s" % (c, b[0:4]), sql=True)
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