mirror of
https://github.com/moparisthebest/SickRage
synced 2024-11-17 23:05:11 -05:00
440 lines
15 KiB
Python
440 lines
15 KiB
Python
# testing/assertions.py
|
|
# Copyright (C) 2005-2014 the SQLAlchemy authors and contributors <see AUTHORS file>
|
|
#
|
|
# This module is part of SQLAlchemy and is released under
|
|
# the MIT License: http://www.opensource.org/licenses/mit-license.php
|
|
|
|
from __future__ import absolute_import
|
|
|
|
from . import util as testutil
|
|
from sqlalchemy import pool, orm, util
|
|
from sqlalchemy.engine import default, create_engine, url
|
|
from sqlalchemy import exc as sa_exc
|
|
from sqlalchemy.util import decorator
|
|
from sqlalchemy import types as sqltypes, schema
|
|
import warnings
|
|
import re
|
|
from .warnings import resetwarnings
|
|
from .exclusions import db_spec, _is_excluded
|
|
from . import assertsql
|
|
from . import config
|
|
import itertools
|
|
from .util import fail
|
|
import contextlib
|
|
|
|
|
|
def emits_warning(*messages):
|
|
"""Mark a test as emitting a warning.
|
|
|
|
With no arguments, squelches all SAWarning failures. Or pass one or more
|
|
strings; these will be matched to the root of the warning description by
|
|
warnings.filterwarnings().
|
|
"""
|
|
# TODO: it would be nice to assert that a named warning was
|
|
# emitted. should work with some monkeypatching of warnings,
|
|
# and may work on non-CPython if they keep to the spirit of
|
|
# warnings.showwarning's docstring.
|
|
# - update: jython looks ok, it uses cpython's module
|
|
|
|
@decorator
|
|
def decorate(fn, *args, **kw):
|
|
# todo: should probably be strict about this, too
|
|
filters = [dict(action='ignore',
|
|
category=sa_exc.SAPendingDeprecationWarning)]
|
|
if not messages:
|
|
filters.append(dict(action='ignore',
|
|
category=sa_exc.SAWarning))
|
|
else:
|
|
filters.extend(dict(action='ignore',
|
|
message=message,
|
|
category=sa_exc.SAWarning)
|
|
for message in messages)
|
|
for f in filters:
|
|
warnings.filterwarnings(**f)
|
|
try:
|
|
return fn(*args, **kw)
|
|
finally:
|
|
resetwarnings()
|
|
return decorate
|
|
|
|
|
|
def emits_warning_on(db, *warnings):
|
|
"""Mark a test as emitting a warning on a specific dialect.
|
|
|
|
With no arguments, squelches all SAWarning failures. Or pass one or more
|
|
strings; these will be matched to the root of the warning description by
|
|
warnings.filterwarnings().
|
|
"""
|
|
spec = db_spec(db)
|
|
|
|
@decorator
|
|
def decorate(fn, *args, **kw):
|
|
if isinstance(db, util.string_types):
|
|
if not spec(config._current):
|
|
return fn(*args, **kw)
|
|
else:
|
|
wrapped = emits_warning(*warnings)(fn)
|
|
return wrapped(*args, **kw)
|
|
else:
|
|
if not _is_excluded(*db):
|
|
return fn(*args, **kw)
|
|
else:
|
|
wrapped = emits_warning(*warnings)(fn)
|
|
return wrapped(*args, **kw)
|
|
return decorate
|
|
|
|
|
|
def uses_deprecated(*messages):
|
|
"""Mark a test as immune from fatal deprecation warnings.
|
|
|
|
With no arguments, squelches all SADeprecationWarning failures.
|
|
Or pass one or more strings; these will be matched to the root
|
|
of the warning description by warnings.filterwarnings().
|
|
|
|
As a special case, you may pass a function name prefixed with //
|
|
and it will be re-written as needed to match the standard warning
|
|
verbiage emitted by the sqlalchemy.util.deprecated decorator.
|
|
"""
|
|
|
|
@decorator
|
|
def decorate(fn, *args, **kw):
|
|
with expect_deprecated(*messages):
|
|
return fn(*args, **kw)
|
|
return decorate
|
|
|
|
@contextlib.contextmanager
|
|
def expect_deprecated(*messages):
|
|
# todo: should probably be strict about this, too
|
|
filters = [dict(action='ignore',
|
|
category=sa_exc.SAPendingDeprecationWarning)]
|
|
if not messages:
|
|
filters.append(dict(action='ignore',
|
|
category=sa_exc.SADeprecationWarning))
|
|
else:
|
|
filters.extend(
|
|
[dict(action='ignore',
|
|
message=message,
|
|
category=sa_exc.SADeprecationWarning)
|
|
for message in
|
|
[(m.startswith('//') and
|
|
('Call to deprecated function ' + m[2:]) or m)
|
|
for m in messages]])
|
|
|
|
for f in filters:
|
|
warnings.filterwarnings(**f)
|
|
try:
|
|
yield
|
|
finally:
|
|
resetwarnings()
|
|
|
|
|
|
def global_cleanup_assertions():
|
|
"""Check things that have to be finalized at the end of a test suite.
|
|
|
|
Hardcoded at the moment, a modular system can be built here
|
|
to support things like PG prepared transactions, tables all
|
|
dropped, etc.
|
|
|
|
"""
|
|
_assert_no_stray_pool_connections()
|
|
|
|
_STRAY_CONNECTION_FAILURES = 0
|
|
def _assert_no_stray_pool_connections():
|
|
global _STRAY_CONNECTION_FAILURES
|
|
|
|
# lazy gc on cPython means "do nothing." pool connections
|
|
# shouldn't be in cycles, should go away.
|
|
testutil.lazy_gc()
|
|
|
|
# however, once in awhile, on an EC2 machine usually,
|
|
# there's a ref in there. usually just one.
|
|
if pool._refs:
|
|
|
|
# OK, let's be somewhat forgiving. Increment a counter,
|
|
# we'll allow a couple of these at most.
|
|
_STRAY_CONNECTION_FAILURES += 1
|
|
|
|
print("Encountered a stray connection in test cleanup: %s"
|
|
% str(pool._refs))
|
|
# then do a real GC sweep. We shouldn't even be here
|
|
# so a single sweep should really be doing it, otherwise
|
|
# there's probably a real unreachable cycle somewhere.
|
|
testutil.gc_collect()
|
|
|
|
# if we've already had two of these occurrences, or
|
|
# after a hard gc sweep we still have pool._refs?!
|
|
# now we have to raise.
|
|
if _STRAY_CONNECTION_FAILURES >= 2 or pool._refs:
|
|
err = str(pool._refs)
|
|
|
|
# but clean out the pool refs collection directly,
|
|
# reset the counter,
|
|
# so the error doesn't at least keep happening.
|
|
pool._refs.clear()
|
|
_STRAY_CONNECTION_FAILURES = 0
|
|
assert False, "Stray conections in cleanup: %s" % err
|
|
|
|
|
|
def eq_(a, b, msg=None):
|
|
"""Assert a == b, with repr messaging on failure."""
|
|
assert a == b, msg or "%r != %r" % (a, b)
|
|
|
|
|
|
def ne_(a, b, msg=None):
|
|
"""Assert a != b, with repr messaging on failure."""
|
|
assert a != b, msg or "%r == %r" % (a, b)
|
|
|
|
|
|
def is_(a, b, msg=None):
|
|
"""Assert a is b, with repr messaging on failure."""
|
|
assert a is b, msg or "%r is not %r" % (a, b)
|
|
|
|
|
|
def is_not_(a, b, msg=None):
|
|
"""Assert a is not b, with repr messaging on failure."""
|
|
assert a is not b, msg or "%r is %r" % (a, b)
|
|
|
|
|
|
def startswith_(a, fragment, msg=None):
|
|
"""Assert a.startswith(fragment), with repr messaging on failure."""
|
|
assert a.startswith(fragment), msg or "%r does not start with %r" % (
|
|
a, fragment)
|
|
|
|
|
|
def assert_raises(except_cls, callable_, *args, **kw):
|
|
try:
|
|
callable_(*args, **kw)
|
|
success = False
|
|
except except_cls:
|
|
success = True
|
|
|
|
# assert outside the block so it works for AssertionError too !
|
|
assert success, "Callable did not raise an exception"
|
|
|
|
|
|
def assert_raises_message(except_cls, msg, callable_, *args, **kwargs):
|
|
try:
|
|
callable_(*args, **kwargs)
|
|
assert False, "Callable did not raise an exception"
|
|
except except_cls as e:
|
|
assert re.search(msg, util.text_type(e), re.UNICODE), "%r !~ %s" % (msg, e)
|
|
print(util.text_type(e).encode('utf-8'))
|
|
|
|
|
|
class AssertsCompiledSQL(object):
|
|
def assert_compile(self, clause, result, params=None,
|
|
checkparams=None, dialect=None,
|
|
checkpositional=None,
|
|
use_default_dialect=False,
|
|
allow_dialect_select=False,
|
|
literal_binds=False):
|
|
if use_default_dialect:
|
|
dialect = default.DefaultDialect()
|
|
elif allow_dialect_select:
|
|
dialect = None
|
|
else:
|
|
if dialect is None:
|
|
dialect = getattr(self, '__dialect__', None)
|
|
|
|
if dialect is None:
|
|
dialect = config.db.dialect
|
|
elif dialect == 'default':
|
|
dialect = default.DefaultDialect()
|
|
elif isinstance(dialect, util.string_types):
|
|
dialect = url.URL(dialect).get_dialect()()
|
|
|
|
|
|
kw = {}
|
|
compile_kwargs = {}
|
|
|
|
if params is not None:
|
|
kw['column_keys'] = list(params)
|
|
|
|
if literal_binds:
|
|
compile_kwargs['literal_binds'] = True
|
|
|
|
if isinstance(clause, orm.Query):
|
|
context = clause._compile_context()
|
|
context.statement.use_labels = True
|
|
clause = context.statement
|
|
|
|
if compile_kwargs:
|
|
kw['compile_kwargs'] = compile_kwargs
|
|
|
|
c = clause.compile(dialect=dialect, **kw)
|
|
|
|
param_str = repr(getattr(c, 'params', {}))
|
|
|
|
if util.py3k:
|
|
param_str = param_str.encode('utf-8').decode('ascii', 'ignore')
|
|
print(("\nSQL String:\n" + util.text_type(c) + param_str).encode('utf-8'))
|
|
else:
|
|
print("\nSQL String:\n" + util.text_type(c).encode('utf-8') + param_str)
|
|
|
|
|
|
cc = re.sub(r'[\n\t]', '', util.text_type(c))
|
|
|
|
eq_(cc, result, "%r != %r on dialect %r" % (cc, result, dialect))
|
|
|
|
if checkparams is not None:
|
|
eq_(c.construct_params(params), checkparams)
|
|
if checkpositional is not None:
|
|
p = c.construct_params(params)
|
|
eq_(tuple([p[x] for x in c.positiontup]), checkpositional)
|
|
|
|
|
|
class ComparesTables(object):
|
|
|
|
def assert_tables_equal(self, table, reflected_table, strict_types=False):
|
|
assert len(table.c) == len(reflected_table.c)
|
|
for c, reflected_c in zip(table.c, reflected_table.c):
|
|
eq_(c.name, reflected_c.name)
|
|
assert reflected_c is reflected_table.c[c.name]
|
|
eq_(c.primary_key, reflected_c.primary_key)
|
|
eq_(c.nullable, reflected_c.nullable)
|
|
|
|
if strict_types:
|
|
msg = "Type '%s' doesn't correspond to type '%s'"
|
|
assert type(reflected_c.type) is type(c.type), \
|
|
msg % (reflected_c.type, c.type)
|
|
else:
|
|
self.assert_types_base(reflected_c, c)
|
|
|
|
if isinstance(c.type, sqltypes.String):
|
|
eq_(c.type.length, reflected_c.type.length)
|
|
|
|
eq_(
|
|
set([f.column.name for f in c.foreign_keys]),
|
|
set([f.column.name for f in reflected_c.foreign_keys])
|
|
)
|
|
if c.server_default:
|
|
assert isinstance(reflected_c.server_default,
|
|
schema.FetchedValue)
|
|
|
|
assert len(table.primary_key) == len(reflected_table.primary_key)
|
|
for c in table.primary_key:
|
|
assert reflected_table.primary_key.columns[c.name] is not None
|
|
|
|
def assert_types_base(self, c1, c2):
|
|
assert c1.type._compare_type_affinity(c2.type),\
|
|
"On column %r, type '%s' doesn't correspond to type '%s'" % \
|
|
(c1.name, c1.type, c2.type)
|
|
|
|
|
|
class AssertsExecutionResults(object):
|
|
def assert_result(self, result, class_, *objects):
|
|
result = list(result)
|
|
print(repr(result))
|
|
self.assert_list(result, class_, objects)
|
|
|
|
def assert_list(self, result, class_, list):
|
|
self.assert_(len(result) == len(list),
|
|
"result list is not the same size as test list, " +
|
|
"for class " + class_.__name__)
|
|
for i in range(0, len(list)):
|
|
self.assert_row(class_, result[i], list[i])
|
|
|
|
def assert_row(self, class_, rowobj, desc):
|
|
self.assert_(rowobj.__class__ is class_,
|
|
"item class is not " + repr(class_))
|
|
for key, value in desc.items():
|
|
if isinstance(value, tuple):
|
|
if isinstance(value[1], list):
|
|
self.assert_list(getattr(rowobj, key), value[0], value[1])
|
|
else:
|
|
self.assert_row(value[0], getattr(rowobj, key), value[1])
|
|
else:
|
|
self.assert_(getattr(rowobj, key) == value,
|
|
"attribute %s value %s does not match %s" % (
|
|
key, getattr(rowobj, key), value))
|
|
|
|
def assert_unordered_result(self, result, cls, *expected):
|
|
"""As assert_result, but the order of objects is not considered.
|
|
|
|
The algorithm is very expensive but not a big deal for the small
|
|
numbers of rows that the test suite manipulates.
|
|
"""
|
|
|
|
class immutabledict(dict):
|
|
def __hash__(self):
|
|
return id(self)
|
|
|
|
found = util.IdentitySet(result)
|
|
expected = set([immutabledict(e) for e in expected])
|
|
|
|
for wrong in util.itertools_filterfalse(lambda o: type(o) == cls, found):
|
|
fail('Unexpected type "%s", expected "%s"' % (
|
|
type(wrong).__name__, cls.__name__))
|
|
|
|
if len(found) != len(expected):
|
|
fail('Unexpected object count "%s", expected "%s"' % (
|
|
len(found), len(expected)))
|
|
|
|
NOVALUE = object()
|
|
|
|
def _compare_item(obj, spec):
|
|
for key, value in spec.items():
|
|
if isinstance(value, tuple):
|
|
try:
|
|
self.assert_unordered_result(
|
|
getattr(obj, key), value[0], *value[1])
|
|
except AssertionError:
|
|
return False
|
|
else:
|
|
if getattr(obj, key, NOVALUE) != value:
|
|
return False
|
|
return True
|
|
|
|
for expected_item in expected:
|
|
for found_item in found:
|
|
if _compare_item(found_item, expected_item):
|
|
found.remove(found_item)
|
|
break
|
|
else:
|
|
fail(
|
|
"Expected %s instance with attributes %s not found." % (
|
|
cls.__name__, repr(expected_item)))
|
|
return True
|
|
|
|
def assert_sql_execution(self, db, callable_, *rules):
|
|
assertsql.asserter.add_rules(rules)
|
|
try:
|
|
callable_()
|
|
assertsql.asserter.statement_complete()
|
|
finally:
|
|
assertsql.asserter.clear_rules()
|
|
|
|
def assert_sql(self, db, callable_, list_, with_sequences=None):
|
|
if with_sequences is not None and config.db.dialect.supports_sequences:
|
|
rules = with_sequences
|
|
else:
|
|
rules = list_
|
|
|
|
newrules = []
|
|
for rule in rules:
|
|
if isinstance(rule, dict):
|
|
newrule = assertsql.AllOf(*[
|
|
assertsql.ExactSQL(k, v) for k, v in rule.items()
|
|
])
|
|
else:
|
|
newrule = assertsql.ExactSQL(*rule)
|
|
newrules.append(newrule)
|
|
|
|
self.assert_sql_execution(db, callable_, *newrules)
|
|
|
|
def assert_sql_count(self, db, callable_, count):
|
|
self.assert_sql_execution(
|
|
db, callable_, assertsql.CountStatements(count))
|
|
|
|
@contextlib.contextmanager
|
|
def assert_execution(self, *rules):
|
|
assertsql.asserter.add_rules(rules)
|
|
try:
|
|
yield
|
|
assertsql.asserter.statement_complete()
|
|
finally:
|
|
assertsql.asserter.clear_rules()
|
|
|
|
def assert_statement_count(self, count):
|
|
return self.assert_execution(assertsql.CountStatements(count))
|