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# -*- coding: utf-8 -*-
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"""IPython Test Suite Runner.
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This module provides a main entry point to a user script to test IPython
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itself from the command line. There are two ways of running this script:
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1. With the syntax `iptest all`. This runs our entire test suite by
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calling this script (with different arguments) or trial recursively. This
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causes modules and package to be tested in different processes, using nose
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or trial where appropriate.
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2. With the regular nose syntax, like `iptest -vvs IPython`. In this form
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the script simply calls nose, but with special command line flags and
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plugins loaded.
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For now, this script requires that both nose and twisted are installed. This
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will change in the future.
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"""
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from __future__ import absolute_import
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#-----------------------------------------------------------------------------
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# Module imports
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#-----------------------------------------------------------------------------
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import os
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import os.path as path
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import signal
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import sys
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import subprocess
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import tempfile
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import time
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import warnings
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import nose.plugins.builtin
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from nose.core import TestProgram
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from IPython.utils import genutils
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from IPython.utils.platutils import find_cmd, FindCmdError
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from . import globalipapp
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from .plugin.ipdoctest import IPythonDoctest
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pjoin = path.join
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#-----------------------------------------------------------------------------
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# Warnings control
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#-----------------------------------------------------------------------------
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# Twisted generates annoying warnings with Python 2.6, as will do other code
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# that imports 'sets' as of today
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warnings.filterwarnings('ignore', 'the sets module is deprecated',
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DeprecationWarning )
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#-----------------------------------------------------------------------------
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# Logic for skipping doctests
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#-----------------------------------------------------------------------------
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def test_for(mod):
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"""Test to see if mod is importable."""
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try:
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__import__(mod)
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except ImportError:
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return False
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else:
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return True
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have_curses = test_for('_curses')
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have_wx = test_for('wx')
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have_wx_aui = test_for('wx.aui')
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have_zi = test_for('zope.interface')
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have_twisted = test_for('twisted')
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have_foolscap = test_for('foolscap')
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have_objc = test_for('objc')
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have_pexpect = test_for('pexpect')
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have_gtk = test_for('gtk')
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have_gobject = test_for('gobject')
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def make_exclude():
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# For the IPythonDoctest plugin, we need to exclude certain patterns that
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# cause testing problems. We should strive to minimize the number of
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# skipped modules, since this means untested code. As the testing
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# machinery solidifies, this list should eventually become empty.
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# These modules and packages will NOT get scanned by nose at all for tests
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exclusions = [pjoin('IPython', 'external'),
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pjoin('IPython', 'frontend', 'process', 'winprocess.py'),
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pjoin('IPython_doctest_plugin'),
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pjoin('IPython', 'quarantine'),
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pjoin('IPython', 'deathrow'),
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pjoin('IPython', 'testing', 'attic'),
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pjoin('IPython', 'testing', 'tools'),
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pjoin('IPython', 'testing', 'mkdoctests'),
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pjoin('IPython', 'lib', 'inputhook'),
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# Config files aren't really importable stand-alone
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pjoin('IPython', 'config', 'default'),
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pjoin('IPython', 'config', 'profile'),
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]
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if not have_wx:
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exclusions.append(pjoin('IPython', 'gui'))
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exclusions.append(pjoin('IPython', 'frontend', 'wx'))
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exclusions.append(pjoin('IPython', 'lib', 'inputhookwx'))
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if not have_gtk or not have_gobject:
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exclusions.append(pjoin('IPython', 'lib', 'inputhookgtk'))
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if not have_wx_aui:
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exclusions.append(pjoin('IPython', 'gui', 'wx', 'wxIPython'))
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if not have_objc:
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exclusions.append(pjoin('IPython', 'frontend', 'cocoa'))
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if not sys.platform == 'win32':
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exclusions.append(pjoin('IPython', 'utils', 'platutils_win32'))
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# These have to be skipped on win32 because the use echo, rm, cd, etc.
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# See ticket https://bugs.launchpad.net/bugs/366982
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if sys.platform == 'win32':
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exclusions.append(pjoin('IPython', 'testing', 'plugin', 'test_exampleip'))
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exclusions.append(pjoin('IPython', 'testing', 'plugin', 'dtexample'))
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if not os.name == 'posix':
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exclusions.append(pjoin('IPython', 'utils', 'platutils_posix'))
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if not have_pexpect:
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exclusions.append(pjoin('IPython', 'scripts', 'irunner'))
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# This is scary. We still have things in frontend and testing that
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# are being tested by nose that use twisted. We need to rethink
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# how we are isolating dependencies in testing.
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if not (have_twisted and have_zi and have_foolscap):
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exclusions.append(pjoin('IPython', 'frontend', 'asyncfrontendbase'))
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exclusions.append(pjoin('IPython', 'frontend', 'prefilterfrontend'))
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exclusions.append(pjoin('IPython', 'frontend', 'frontendbase'))
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exclusions.append(pjoin('IPython', 'frontend', 'linefrontendbase'))
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exclusions.append(pjoin('IPython', 'frontend', 'tests',
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'test_linefrontend'))
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exclusions.append(pjoin('IPython', 'frontend', 'tests',
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'test_frontendbase'))
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exclusions.append(pjoin('IPython', 'frontend', 'tests',
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'test_prefilterfrontend'))
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exclusions.append(pjoin('IPython', 'frontend', 'tests',
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'test_asyncfrontendbase')),
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exclusions.append(pjoin('IPython', 'testing', 'parametric'))
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exclusions.append(pjoin('IPython', 'testing', 'util'))
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# This is needed for the reg-exp to match on win32 in the ipdoctest plugin.
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if sys.platform == 'win32':
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exclusions = [s.replace('\\','\\\\') for s in exclusions]
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return exclusions
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#-----------------------------------------------------------------------------
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# Functions and classes
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#-----------------------------------------------------------------------------
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class IPTester(object):
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"""Call that calls iptest or trial in a subprocess.
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"""
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#: string, name of test runner that will be called
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runner = None
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#: list, parameters for test runner
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params = None
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#: list, arguments of system call to be made to call test runner
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call_args = None
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#: list, process ids of subprocesses we start (for cleanup)
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pids = None
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def __init__(self,runner='iptest',params=None):
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"""Create new test runner."""
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if runner == 'iptest':
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# Find our own 'iptest' script OS-level entry point
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try:
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iptest_path = os.path.abspath(find_cmd('iptest'))
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except FindCmdError:
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# Script not installed (may be the case for testing situations
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# that are running from a source tree only), pull from internal
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# path:
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iptest_path = pjoin(genutils.get_ipython_package_dir(),
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'scripts','iptest')
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self.runner = ['python', iptest_path, '-v']
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else:
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self.runner = ['python', os.path.abspath(find_cmd('trial'))]
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if params is None:
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params = []
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if isinstance(params,str):
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params = [params]
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self.params = params
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# Assemble call
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self.call_args = self.runner+self.params
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# Store pids of anything we start to clean up on deletion, if possible
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# (on posix only, since win32 has no os.kill)
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self.pids = []
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if sys.platform == 'win32':
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def _run_cmd(self):
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# On Windows, use os.system instead of subprocess.call, because I
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# was having problems with subprocess and I just don't know enough
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# about win32 to debug this reliably. Os.system may be the 'old
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# fashioned' way to do it, but it works just fine. If someone
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# later can clean this up that's fine, as long as the tests run
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# reliably in win32.
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return os.system(' '.join(self.call_args))
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else:
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def _run_cmd(self):
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subp = subprocess.Popen(self.call_args)
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self.pids.append(subp.pid)
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# If this fails, the pid will be left in self.pids and cleaned up
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# later, but if the wait call succeeds, then we can clear the
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# stored pid.
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retcode = subp.wait()
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self.pids.pop()
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return retcode
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def run(self):
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"""Run the stored commands"""
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try:
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return self._run_cmd()
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except:
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import traceback
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traceback.print_exc()
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return 1 # signal failure
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def __del__(self):
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"""Cleanup on exit by killing any leftover processes."""
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if not hasattr(os, 'kill'):
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return
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for pid in self.pids:
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try:
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print 'Cleaning stale PID:', pid
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os.kill(pid, signal.SIGKILL)
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except OSError:
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# This is just a best effort, if we fail or the process was
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# really gone, ignore it.
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pass
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def make_runners():
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"""Define the top-level packages that need to be tested.
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"""
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nose_packages = ['config', 'core', 'extensions', 'frontend', 'lib',
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'scripts', 'testing', 'utils']
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trial_packages = ['kernel']
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if have_wx:
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nose_packages.append('gui')
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#nose_packages = ['core'] # dbg
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#trial_packages = [] # dbg
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nose_packages = ['IPython.%s' % m for m in nose_packages ]
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trial_packages = ['IPython.%s' % m for m in trial_packages ]
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# Make runners, most with nose
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nose_testers = [IPTester(params=v) for v in nose_packages]
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runners = dict(zip(nose_packages, nose_testers))
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# And add twisted ones if conditions are met
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if have_zi and have_twisted and have_foolscap:
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trial_testers = [IPTester('trial',params=v) for v in trial_packages]
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runners.update(dict(zip(trial_packages,trial_testers)))
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return runners
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def run_iptest():
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"""Run the IPython test suite using nose.
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This function is called when this script is **not** called with the form
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`iptest all`. It simply calls nose with appropriate command line flags
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and accepts all of the standard nose arguments.
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"""
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warnings.filterwarnings('ignore',
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'This will be removed soon. Use IPython.testing.util instead')
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argv = sys.argv + [ '--detailed-errors',
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# Loading ipdoctest causes problems with Twisted, but
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# our test suite runner now separates things and runs
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# all Twisted tests with trial.
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'--with-ipdoctest',
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'--ipdoctest-tests','--ipdoctest-extension=txt',
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#'-x','-s', # dbg
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# We add --exe because of setuptools' imbecility (it
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# blindly does chmod +x on ALL files). Nose does the
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# right thing and it tries to avoid executables,
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# setuptools unfortunately forces our hand here. This
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# has been discussed on the distutils list and the
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# setuptools devs refuse to fix this problem!
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'--exe',
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]
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# Detect if any tests were required by explicitly calling an IPython
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# submodule or giving a specific path
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has_tests = False
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for arg in sys.argv:
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if 'IPython' in arg or arg.endswith('.py') or \
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(':' in arg and '.py' in arg):
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has_tests = True
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break
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# If nothing was specifically requested, test full IPython
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if not has_tests:
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argv.append('IPython')
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## # Construct list of plugins, omitting the existing doctest plugin, which
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## # ours replaces (and extends).
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plugins = [IPythonDoctest(make_exclude())]
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for p in nose.plugins.builtin.plugins:
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plug = p()
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if plug.name == 'doctest':
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continue
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plugins.append(plug)
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# We need a global ipython running in this process
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globalipapp.start_ipython()
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# Now nose can run
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TestProgram(argv=argv,plugins=plugins)
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def run_iptestall():
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"""Run the entire IPython test suite by calling nose and trial.
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This function constructs :class:`IPTester` instances for all IPython
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modules and package and then runs each of them. This causes the modules
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and packages of IPython to be tested each in their own subprocess using
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nose or twisted.trial appropriately.
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"""
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runners = make_runners()
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# Run the test runners in a temporary dir so we can nuke it when finished
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# to clean up any junk files left over by accident. This also makes it
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# robust against being run in non-writeable directories by mistake, as the
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# temp dir will always be user-writeable.
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curdir = os.getcwd()
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testdir = tempfile.gettempdir()
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os.chdir(testdir)
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# Run all test runners, tracking execution time
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failed = {}
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t_start = time.time()
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try:
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for name,runner in runners.iteritems():
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print '*'*77
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print 'IPython test group:',name
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res = runner.run()
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if res:
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failed[name] = res
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finally:
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os.chdir(curdir)
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t_end = time.time()
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t_tests = t_end - t_start
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nrunners = len(runners)
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nfail = len(failed)
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# summarize results
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print
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print '*'*77
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print 'Ran %s test groups in %.3fs' % (nrunners, t_tests)
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print
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if not failed:
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print 'OK'
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else:
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# If anything went wrong, point out what command to rerun manually to
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# see the actual errors and individual summary
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print 'ERROR - %s out of %s test groups failed.' % (nfail, nrunners)
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for name in failed:
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failed_runner = runners[name]
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print '-'*40
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print 'Runner failed:',name
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print 'You may wish to rerun this one individually, with:'
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print ' '.join(failed_runner.call_args)
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print
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def main():
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if len(sys.argv) == 1:
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run_iptestall()
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else:
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if sys.argv[1] == 'all':
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run_iptestall()
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else:
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run_iptest()
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if __name__ == '__main__':
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main()
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|
