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import builtins
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import inspect
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import os
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import pathlib
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import shutil
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import sys
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import types
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import pytest
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# Must register before it gets imported
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pytest.register_assert_rewrite("IPython.testing.tools")
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from .testing import tools
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def pytest_collection_modifyitems(items):
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"""This function is automatically run by pytest passing all collected test
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functions.
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We use it to add asyncio marker to all async tests and assert we don't use
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test functions that are async generators which wouldn't make sense.
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"""
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for item in items:
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if inspect.iscoroutinefunction(item.obj):
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item.add_marker("asyncio")
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assert not inspect.isasyncgenfunction(item.obj)
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def get_ipython():
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from .terminal.interactiveshell import TerminalInteractiveShell
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if TerminalInteractiveShell._instance:
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return TerminalInteractiveShell.instance()
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config = tools.default_config()
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config.TerminalInteractiveShell.simple_prompt = True
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# Create and initialize our test-friendly IPython instance.
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shell = TerminalInteractiveShell.instance(config=config)
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return shell
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@pytest.fixture(scope='session', autouse=True)
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def work_path():
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path = pathlib.Path("./tmp-ipython-pytest-profiledir")
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os.environ["IPYTHONDIR"] = str(path.absolute())
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if path.exists():
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raise ValueError('IPython dir temporary path already exists ! Did previous test run exit successfully ?')
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path.mkdir()
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yield
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shutil.rmtree(str(path.resolve()))
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def nopage(strng, start=0, screen_lines=0, pager_cmd=None):
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if isinstance(strng, dict):
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strng = strng.get("text/plain", "")
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print(strng)
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def xsys(self, cmd):
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"""Replace the default system call with a capturing one for doctest.
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"""
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# We use getoutput, but we need to strip it because pexpect captures
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# the trailing newline differently from commands.getoutput
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print(self.getoutput(cmd, split=False, depth=1).rstrip(), end="", file=sys.stdout)
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sys.stdout.flush()
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# for things to work correctly we would need this as a session fixture;
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# unfortunately this will fail on some test that get executed as _collection_
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# time (before the fixture run), in particular parametrized test that contain
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# yields. so for now execute at import time.
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#@pytest.fixture(autouse=True, scope='session')
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def inject():
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builtins.get_ipython = get_ipython
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builtins._ip = get_ipython()
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builtins.ip = get_ipython()
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builtins.ip.system = types.MethodType(xsys, ip)
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builtins.ip.builtin_trap.activate()
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from .core import page
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page.pager_page = nopage
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# yield
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inject()
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