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- """
- Bootstrapper for test framework plugins.
-
- The entire rationale for this system is to get the modules in plugin/
- imported without importing all of the supporting library, so that we can
- set up things for testing before coverage starts.
-
- The rationale for all of plugin/ being *in* the supporting library in the
- first place is so that the testing and plugin suite is available to other
- libraries, mainly external SQLAlchemy and Alembic dialects, to make use
- of the same test environment and standard suites available to
- SQLAlchemy/Alembic themselves without the need to ship/install a separate
- package outside of SQLAlchemy.
-
- NOTE: copied/adapted from SQLAlchemy master for backwards compatibility;
- this should be removable when Alembic targets SQLAlchemy 1.0.0.
-
- """
-
- import os
- import sys
-
-
- bootstrap_file = locals()["bootstrap_file"]
- to_bootstrap = locals()["to_bootstrap"]
-
-
- def load_file_as_module(name):
- path = os.path.join(os.path.dirname(bootstrap_file), "%s.py" % name)
- if sys.version_info >= (3, 3):
- from importlib import machinery
-
- mod = machinery.SourceFileLoader(name, path).load_module()
- else:
- import imp
-
- mod = imp.load_source(name, path)
- return mod
-
-
- if to_bootstrap == "pytest":
- sys.modules["sqla_plugin_base"] = load_file_as_module("plugin_base")
- sys.modules["sqla_plugin_base"].bootstrapped_as_sqlalchemy = True
- if sys.version_info < (3, 0):
- sys.modules["sqla_reinvent_fixtures"] = load_file_as_module(
- "reinvent_fixtures_py2k"
- )
- sys.modules["sqla_pytestplugin"] = load_file_as_module("pytestplugin")
- else:
- raise Exception("unknown bootstrap: %s" % to_bootstrap) # noqa
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