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from tests import clear_staging_env, staging_env, eq_, ne_, \
assert_raises_message
from alembic import util
def setup():
global env
env = staging_env()
global a, b, c, d, e
a = env.generate_revision(util.rev_id(), None, refresh=True)
b = env.generate_revision(util.rev_id(), None, refresh=True)
c = env.generate_revision(util.rev_id(), None, refresh=True)
d = env.generate_revision(util.rev_id(), None, refresh=True)
e = env.generate_revision(util.rev_id(), None, refresh=True)
def teardown():
clear_staging_env()
def test_upgrade_path():
eq_(
env._upgrade_revs(e.revision, c.revision),
[
(d.module.upgrade, c.revision, d.revision),
(e.module.upgrade, d.revision, e.revision),
]
)
eq_(
env._upgrade_revs(c.revision, None),
[
(a.module.upgrade, None, a.revision),
(b.module.upgrade, a.revision, b.revision),
(c.module.upgrade, b.revision, c.revision),
]
)
def test_relative_upgrade_path():
eq_(
env._upgrade_revs("+2", a.revision),
[
(b.module.upgrade, a.revision, b.revision),
(c.module.upgrade, b.revision, c.revision),
]
)
eq_(
env._upgrade_revs("+1", a.revision),
[
(b.module.upgrade, a.revision, b.revision),
]
)
eq_(
env._upgrade_revs("+3", b.revision),
[
(c.module.upgrade, b.revision, c.revision),
(d.module.upgrade, c.revision, d.revision),
(e.module.upgrade, d.revision, e.revision),
]
)
def test_invalid_relative_upgrade_path():
assert_raises_message(
util.CommandError,
"Relative revision -2 didn't produce 2 migrations",
env._upgrade_revs, "-2", b.revision
)
assert_raises_message(
util.CommandError,
r"Relative revision \+5 didn't produce 5 migrations",
env._upgrade_revs, "+5", b.revision
)
def test_downgrade_path():
eq_(
env._downgrade_revs(c.revision, e.revision),
[
(e.module.downgrade, e.revision, e.down_revision),
(d.module.downgrade, d.revision, d.down_revision),
]
)
eq_(
env._downgrade_revs(None, c.revision),
[
(c.module.downgrade, c.revision, c.down_revision),
(b.module.downgrade, b.revision, b.down_revision),
(a.module.downgrade, a.revision, a.down_revision),
]
)
def test_relative_downgrade_path():
eq_(
env._downgrade_revs("-1", c.revision),
[
(c.module.downgrade, c.revision, c.down_revision),
]
)
eq_(
env._downgrade_revs("-3", e.revision),
[
(e.module.downgrade, e.revision, e.down_revision),
(d.module.downgrade, d.revision, d.down_revision),
(c.module.downgrade, c.revision, c.down_revision),
]
)
def test_invalid_relative_downgrade_path():
assert_raises_message(
util.CommandError,
"Relative revision -5 didn't produce 5 migrations",
env._downgrade_revs, "-5", b.revision
)
assert_raises_message(
util.CommandError,
r"Relative revision \+2 didn't produce 2 migrations",
env._downgrade_revs, "+2", b.revision
)
|
