172 lines
5.4 KiB
Python
172 lines
5.4 KiB
Python
# testing/config.py
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# Copyright (C) 2005-2019 the SQLAlchemy authors and contributors
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# <see AUTHORS file>
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#
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# This module is part of SQLAlchemy and is released under
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# the MIT License: http://www.opensource.org/licenses/mit-license.php
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import collections
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requirements = None
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db = None
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db_url = None
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db_opts = None
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file_config = None
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test_schema = None
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test_schema_2 = None
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_current = None
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_fixture_functions = None # installed by plugin_base
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def combinations(*comb, **kw):
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r"""Deliver multiple versions of a test based on positional combinations.
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This is a facade over pytest.mark.parametrize.
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:param \*comb: argument combinations. These are tuples that will be passed
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positionally to the decorated function.
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:param argnames: optional list of argument names. These are the names
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of the arguments in the test function that correspond to the entries
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in each argument tuple. pytest.mark.parametrize requires this, however
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the combinations function will derive it automatically if not present
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by using ``inspect.getfullargspec(fn).args[1:]``. Note this assumes the
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first argument is "self" which is discarded.
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:param id\_: optional id template. This is a string template that
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describes how the "id" for each parameter set should be defined, if any.
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The number of characters in the template should match the number of
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entries in each argument tuple. Each character describes how the
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corresponding entry in the argument tuple should be handled, as far as
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whether or not it is included in the arguments passed to the function, as
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well as if it is included in the tokens used to create the id of the
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parameter set.
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If omitted, the argument combinations are passed to parametrize as is. If
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passed, each argument combination is turned into a pytest.param() object,
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mapping the elements of the argument tuple to produce an id based on a
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character value in the same position within the string template using the
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following scheme::
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i - the given argument is a string that is part of the id only, don't
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pass it as an argument
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n - the given argument should be passed and it should be added to the
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id by calling the .__name__ attribute
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r - the given argument should be passed and it should be added to the
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id by calling repr()
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s - the given argument should be passed and it should be added to the
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id by calling str()
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a - (argument) the given argument should be passed and it should not
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be used to generated the id
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e.g.::
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@testing.combinations(
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(operator.eq, "eq"),
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(operator.ne, "ne"),
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(operator.gt, "gt"),
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(operator.lt, "lt"),
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id_="na"
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)
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def test_operator(self, opfunc, name):
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pass
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The above combination will call ``.__name__`` on the first member of
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each tuple and use that as the "id" to pytest.param().
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"""
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return _fixture_functions.combinations(*comb, **kw)
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def fixture(*arg, **kw):
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return _fixture_functions.fixture(*arg, **kw)
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def get_current_test_name():
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return _fixture_functions.get_current_test_name()
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class Config(object):
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def __init__(self, db, db_opts, options, file_config):
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self._set_name(db)
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self.db = db
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self.db_opts = db_opts
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self.options = options
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self.file_config = file_config
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self.test_schema = "test_schema"
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self.test_schema_2 = "test_schema_2"
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_stack = collections.deque()
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_configs = set()
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def _set_name(self, db):
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if db.dialect.server_version_info:
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svi = ".".join(str(tok) for tok in db.dialect.server_version_info)
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self.name = "%s+%s_[%s]" % (db.name, db.driver, svi)
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else:
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self.name = "%s+%s" % (db.name, db.driver)
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@classmethod
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def register(cls, db, db_opts, options, file_config):
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"""add a config as one of the global configs.
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If there are no configs set up yet, this config also
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gets set as the "_current".
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"""
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cfg = Config(db, db_opts, options, file_config)
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cls._configs.add(cfg)
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return cfg
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@classmethod
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def set_as_current(cls, config, namespace):
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global db, _current, db_url, test_schema, test_schema_2, db_opts
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_current = config
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db_url = config.db.url
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db_opts = config.db_opts
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test_schema = config.test_schema
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test_schema_2 = config.test_schema_2
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namespace.db = db = config.db
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@classmethod
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def push_engine(cls, db, namespace):
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assert _current, "Can't push without a default Config set up"
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cls.push(
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Config(
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db, _current.db_opts, _current.options, _current.file_config
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),
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namespace,
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)
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@classmethod
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def push(cls, config, namespace):
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cls._stack.append(_current)
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cls.set_as_current(config, namespace)
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@classmethod
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def reset(cls, namespace):
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if cls._stack:
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cls.set_as_current(cls._stack[0], namespace)
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cls._stack.clear()
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@classmethod
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def all_configs(cls):
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return cls._configs
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@classmethod
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def all_dbs(cls):
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for cfg in cls.all_configs():
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yield cfg.db
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def skip_test(self, msg):
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skip_test(msg)
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def skip_test(msg):
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raise _fixture_functions.skip_test_exception(msg)
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