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# -*- coding: utf-8 -*-
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"""IPython Test Process Controller
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This module runs one or more subprocesses which will actually run the IPython
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test suite.
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"""
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# Copyright (c) IPython Development Team.
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# Distributed under the terms of the Modified BSD License.
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from __future__ import print_function
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import argparse
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import json
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import multiprocessing.pool
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import os
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import re
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import requests
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import shutil
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import signal
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import sys
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import subprocess
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import time
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from .iptest import (
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have, test_group_names as py_test_group_names, test_sections, StreamCapturer,
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test_for,
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)
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from IPython.utils.path import compress_user
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from IPython.utils.py3compat import bytes_to_str
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from IPython.utils.sysinfo import get_sys_info
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from IPython.utils.tempdir import TemporaryDirectory
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from IPython.utils.text import strip_ansi
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try:
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# Python >= 3.3
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from subprocess import TimeoutExpired
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def popen_wait(p, timeout):
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return p.wait(timeout)
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except ImportError:
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class TimeoutExpired(Exception):
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pass
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def popen_wait(p, timeout):
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"""backport of Popen.wait from Python 3"""
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for i in range(int(10 * timeout)):
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if p.poll() is not None:
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return
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time.sleep(0.1)
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if p.poll() is None:
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raise TimeoutExpired
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NOTEBOOK_SHUTDOWN_TIMEOUT = 10
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class TestController(object):
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"""Run tests in a subprocess
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"""
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#: str, IPython test suite to be executed.
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section = None
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#: list, command line arguments to be executed
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cmd = None
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#: dict, extra environment variables to set for the subprocess
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env = None
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#: list, TemporaryDirectory instances to clear up when the process finishes
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dirs = None
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#: subprocess.Popen instance
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process = None
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#: str, process stdout+stderr
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stdout = None
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def __init__(self):
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self.cmd = []
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self.env = {}
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self.dirs = []
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def setup(self):
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"""Create temporary directories etc.
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This is only called when we know the test group will be run. Things
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created here may be cleaned up by self.cleanup().
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"""
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pass
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def launch(self, buffer_output=False):
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# print('*** ENV:', self.env) # dbg
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# print('*** CMD:', self.cmd) # dbg
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env = os.environ.copy()
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env.update(self.env)
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output = subprocess.PIPE if buffer_output else None
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stdout = subprocess.STDOUT if buffer_output else None
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self.process = subprocess.Popen(self.cmd, stdout=output,
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stderr=stdout, env=env)
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def wait(self):
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self.stdout, _ = self.process.communicate()
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return self.process.returncode
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def print_extra_info(self):
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"""Print extra information about this test run.
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If we're running in parallel and showing the concise view, this is only
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called if the test group fails. Otherwise, it's called before the test
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group is started.
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The base implementation does nothing, but it can be overridden by
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subclasses.
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"""
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return
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def cleanup_process(self):
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"""Cleanup on exit by killing any leftover processes."""
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subp = self.process
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if subp is None or (subp.poll() is not None):
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return # Process doesn't exist, or is already dead.
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try:
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print('Cleaning up stale PID: %d' % subp.pid)
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subp.kill()
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except: # (OSError, WindowsError) ?
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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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else:
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for i in range(10):
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if subp.poll() is None:
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time.sleep(0.1)
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else:
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break
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if subp.poll() is None:
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# The process did not die...
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print('... failed. Manual cleanup may be required.')
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def cleanup(self):
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"Kill process if it's still alive, and clean up temporary directories"
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self.cleanup_process()
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for td in self.dirs:
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td.cleanup()
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__del__ = cleanup
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class PyTestController(TestController):
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"""Run Python tests using IPython.testing.iptest"""
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#: str, Python command to execute in subprocess
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pycmd = None
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def __init__(self, section, options):
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"""Create new test runner."""
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TestController.__init__(self)
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self.section = section
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# pycmd is put into cmd[2] in PyTestController.launch()
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self.cmd = [sys.executable, '-c', None, section]
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self.pycmd = "from IPython.testing.iptest import run_iptest; run_iptest()"
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self.options = options
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def setup(self):
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ipydir = TemporaryDirectory()
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self.dirs.append(ipydir)
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self.env['IPYTHONDIR'] = ipydir.name
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self.workingdir = workingdir = TemporaryDirectory()
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self.dirs.append(workingdir)
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self.env['IPTEST_WORKING_DIR'] = workingdir.name
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# This means we won't get odd effects from our own matplotlib config
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self.env['MPLCONFIGDIR'] = workingdir.name
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# From options:
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if self.options.xunit:
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self.add_xunit()
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if self.options.coverage:
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self.add_coverage()
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self.env['IPTEST_SUBPROC_STREAMS'] = self.options.subproc_streams
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self.cmd.extend(self.options.extra_args)
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@property
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def will_run(self):
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try:
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return test_sections[self.section].will_run
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except KeyError:
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return True
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def add_xunit(self):
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xunit_file = os.path.abspath(self.section + '.xunit.xml')
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self.cmd.extend(['--with-xunit', '--xunit-file', xunit_file])
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def add_coverage(self):
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try:
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sources = test_sections[self.section].includes
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except KeyError:
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sources = ['IPython']
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coverage_rc = ("[run]\n"
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"data_file = {data_file}\n"
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"source =\n"
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" {source}\n"
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).format(data_file=os.path.abspath('.coverage.'+self.section),
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source="\n ".join(sources))
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config_file = os.path.join(self.workingdir.name, '.coveragerc')
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with open(config_file, 'w') as f:
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f.write(coverage_rc)
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self.env['COVERAGE_PROCESS_START'] = config_file
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self.pycmd = "import coverage; coverage.process_startup(); " + self.pycmd
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def launch(self, buffer_output=False):
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self.cmd[2] = self.pycmd
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super(PyTestController, self).launch(buffer_output=buffer_output)
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js_prefix = 'js/'
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def get_js_test_dir():
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import IPython.html.tests as t
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return os.path.join(os.path.dirname(t.__file__), '')
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def all_js_groups():
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import glob
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test_dir = get_js_test_dir()
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all_subdirs = glob.glob(test_dir + '[!_]*/')
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return [js_prefix+os.path.relpath(x, test_dir) for x in all_subdirs]
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class JSController(TestController):
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"""Run CasperJS tests """
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requirements = ['zmq', 'tornado', 'jinja2', 'casperjs', 'sqlite3',
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'jsonschema']
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display_slimer_output = False
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def __init__(self, section, xunit=True, engine='phantomjs', url=None):
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"""Create new test runner."""
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TestController.__init__(self)
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self.engine = engine
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self.section = section
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self.xunit = xunit
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self.url = url
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self.slimer_failure = re.compile('^FAIL.*', flags=re.MULTILINE)
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js_test_dir = get_js_test_dir()
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includes = '--includes=' + os.path.join(js_test_dir,'util.js')
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test_cases = os.path.join(js_test_dir, self.section[len(js_prefix):])
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self.cmd = ['casperjs', 'test', includes, test_cases, '--engine=%s' % self.engine]
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def setup(self):
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self.ipydir = TemporaryDirectory()
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self.nbdir = TemporaryDirectory()
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self.dirs.append(self.ipydir)
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self.dirs.append(self.nbdir)
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os.makedirs(os.path.join(self.nbdir.name, os.path.join(u'sub ∂ir1', u'sub ∂ir 1a')))
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os.makedirs(os.path.join(self.nbdir.name, os.path.join(u'sub ∂ir2', u'sub ∂ir 1b')))
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if self.xunit:
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self.add_xunit()
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# If a url was specified, use that for the testing.
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if self.url:
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try:
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alive = requests.get(self.url).status_code == 200
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except:
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alive = False
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if alive:
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self.cmd.append("--url=%s" % self.url)
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else:
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raise Exception('Could not reach "%s".' % self.url)
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else:
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# start the ipython notebook, so we get the port number
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self.server_port = 0
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self._init_server()
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if self.server_port:
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self.cmd.append("--port=%i" % self.server_port)
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else:
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# don't launch tests if the server didn't start
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self.cmd = [sys.executable, '-c', 'raise SystemExit(1)']
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def add_xunit(self):
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xunit_file = os.path.abspath(self.section.replace('/','.') + '.xunit.xml')
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self.cmd.append('--xunit=%s' % xunit_file)
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def launch(self, buffer_output):
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# If the engine is SlimerJS, we need to buffer the output because
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# SlimerJS does not support exit codes, so CasperJS always returns 0.
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if self.engine == 'slimerjs' and not buffer_output:
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self.display_slimer_output = True
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return super(JSController, self).launch(buffer_output=True)
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else:
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return super(JSController, self).launch(buffer_output=buffer_output)
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def wait(self, *pargs, **kwargs):
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"""Wait for the JSController to finish"""
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ret = super(JSController, self).wait(*pargs, **kwargs)
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# If this is a SlimerJS controller, check the captured stdout for
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# errors. Otherwise, just return the return code.
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if self.engine == 'slimerjs':
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stdout = bytes_to_str(self.stdout)
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if self.display_slimer_output:
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print(stdout)
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if ret != 0:
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# This could still happen e.g. if it's stopped by SIGINT
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return ret
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return bool(self.slimer_failure.search(strip_ansi(stdout)))
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else:
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return ret
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def print_extra_info(self):
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print("Running tests with notebook directory %r" % self.nbdir.name)
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@property
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def will_run(self):
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should_run = all(have[a] for a in self.requirements + [self.engine])
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tornado4 = test_for('tornado.version_info', (4,0,0), callback=None)
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if should_run and self.engine == 'phantomjs' and tornado4:
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print("phantomjs cannot connect websockets to tornado 4", file=sys.stderr)
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return False
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return should_run
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def _init_server(self):
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"Start the notebook server in a separate process"
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self.server_command = command = [sys.executable,
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'-m', 'IPython.html',
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'--no-browser',
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'--ipython-dir', self.ipydir.name,
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'--notebook-dir', self.nbdir.name,
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]
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# ipc doesn't work on Windows, and darwin has crazy-long temp paths,
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# which run afoul of ipc's maximum path length.
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if sys.platform.startswith('linux'):
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command.append('--KernelManager.transport=ipc')
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self.stream_capturer = c = StreamCapturer()
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c.start()
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self.server = subprocess.Popen(command, stdout=c.writefd, stderr=subprocess.STDOUT, cwd=self.nbdir.name)
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self.server_info_file = os.path.join(self.ipydir.name,
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'profile_default', 'security', 'nbserver-%i.json' % self.server.pid
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)
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self._wait_for_server()
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def _wait_for_server(self):
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"""Wait 30 seconds for the notebook server to start"""
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for i in range(300):
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if self.server.poll() is not None:
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return self._failed_to_start()
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if os.path.exists(self.server_info_file):
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try:
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self._load_server_info()
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except ValueError:
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# If the server is halfway through writing the file, we may
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# get invalid JSON; it should be ready next iteration.
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pass
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else:
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return
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time.sleep(0.1)
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print("Notebook server-info file never arrived: %s" % self.server_info_file,
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file=sys.stderr
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)
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def _failed_to_start(self):
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"""Notebook server exited prematurely"""
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captured = self.stream_capturer.get_buffer().decode('utf-8', 'replace')
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print("Notebook failed to start: ", file=sys.stderr)
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print(self.server_command)
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print(captured, file=sys.stderr)
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def _load_server_info(self):
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"""Notebook server started, load connection info from JSON"""
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with open(self.server_info_file) as f:
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info = json.load(f)
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self.server_port = info['port']
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def cleanup(self):
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try:
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self.server.terminate()
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except OSError:
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# already dead
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pass
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# wait 10s for the server to shutdown
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try:
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popen_wait(self.server, NOTEBOOK_SHUTDOWN_TIMEOUT)
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except TimeoutExpired:
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# server didn't terminate, kill it
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try:
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print("Failed to terminate notebook server, killing it.",
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file=sys.stderr
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)
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self.server.kill()
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except OSError:
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# already dead
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pass
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# wait another 10s
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try:
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popen_wait(self.server, NOTEBOOK_SHUTDOWN_TIMEOUT)
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except TimeoutExpired:
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print("Notebook server still running (%s)" % self.server_info_file,
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file=sys.stderr
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)
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self.stream_capturer.halt()
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TestController.cleanup(self)
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def prepare_controllers(options):
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"""Returns two lists of TestController instances, those to run, and those
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not to run."""
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testgroups = options.testgroups
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if testgroups:
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if 'js' in testgroups:
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js_testgroups = all_js_groups()
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else:
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js_testgroups = [g for g in testgroups if g.startswith(js_prefix)]
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py_testgroups = [g for g in testgroups if g not in ['js'] + js_testgroups]
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else:
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py_testgroups = py_test_group_names
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if not options.all:
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js_testgroups = []
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test_sections['parallel'].enabled = False
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else:
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js_testgroups = all_js_groups()
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engine = 'slimerjs' if options.slimerjs else 'phantomjs'
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c_js = [JSController(name, xunit=options.xunit, engine=engine, url=options.url) for name in js_testgroups]
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c_py = [PyTestController(name, options) for name in py_testgroups]
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controllers = c_py + c_js
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to_run = [c for c in controllers if c.will_run]
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not_run = [c for c in controllers if not c.will_run]
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return to_run, not_run
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def do_run(controller, buffer_output=True):
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"""Setup and run a test controller.
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If buffer_output is True, no output is displayed, to avoid it appearing
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interleaved. In this case, the caller is responsible for displaying test
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output on failure.
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Returns
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-------
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controller : TestController
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The same controller as passed in, as a convenience for using map() type
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APIs.
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exitcode : int
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The exit code of the test subprocess. Non-zero indicates failure.
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"""
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try:
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try:
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controller.setup()
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if not buffer_output:
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controller.print_extra_info()
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controller.launch(buffer_output=buffer_output)
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except Exception:
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import traceback
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traceback.print_exc()
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return controller, 1 # signal failure
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exitcode = controller.wait()
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return controller, exitcode
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except KeyboardInterrupt:
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return controller, -signal.SIGINT
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finally:
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controller.cleanup()
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def report():
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"""Return a string with a summary report of test-related variables."""
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inf = get_sys_info()
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out = []
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def _add(name, value):
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out.append((name, value))
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_add('IPython version', inf['ipython_version'])
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_add('IPython commit', "{} ({})".format(inf['commit_hash'], inf['commit_source']))
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_add('IPython package', compress_user(inf['ipython_path']))
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_add('Python version', inf['sys_version'].replace('\n',''))
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_add('sys.executable', compress_user(inf['sys_executable']))
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_add('Platform', inf['platform'])
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width = max(len(n) for (n,v) in out)
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out = ["{:<{width}}: {}\n".format(n, v, width=width) for (n,v) in out]
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avail = []
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not_avail = []
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for k, is_avail in have.items():
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if is_avail:
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avail.append(k)
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else:
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not_avail.append(k)
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if avail:
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out.append('\nTools and libraries available at test time:\n')
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avail.sort()
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out.append(' ' + ' '.join(avail)+'\n')
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if not_avail:
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out.append('\nTools and libraries NOT available at test time:\n')
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not_avail.sort()
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out.append(' ' + ' '.join(not_avail)+'\n')
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return ''.join(out)
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def run_iptestall(options):
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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.
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Parameters
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----------
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All parameters are passed as attributes of the options object.
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testgroups : list of str
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Run only these sections of the test suite. If empty, run all the available
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sections.
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fast : int or None
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Run the test suite in parallel, using n simultaneous processes. If None
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is passed, one process is used per CPU core. Default 1 (i.e. sequential)
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inc_slow : bool
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Include slow tests, like IPython.parallel. By default, these tests aren't
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run.
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slimerjs : bool
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Use slimerjs if it's installed instead of phantomjs for casperjs tests.
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url : unicode
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Address:port to use when running the JS tests.
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xunit : bool
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Produce Xunit XML output. This is written to multiple foo.xunit.xml files.
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coverage : bool or str
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Measure code coverage from tests. True will store the raw coverage data,
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or pass 'html' or 'xml' to get reports.
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|
extra_args : list
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Extra arguments to pass to the test subprocesses, e.g. '-v'
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"""
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to_run, not_run = prepare_controllers(options)
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def justify(ltext, rtext, width=70, fill='-'):
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ltext += ' '
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rtext = (' ' + rtext).rjust(width - len(ltext), fill)
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return ltext + rtext
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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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|
print()
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if options.fast == 1:
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# This actually means sequential, i.e. with 1 job
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for controller in to_run:
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print('Test group:', controller.section)
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sys.stdout.flush() # Show in correct order when output is piped
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controller, res = do_run(controller, buffer_output=False)
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|
if res:
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|
failed.append(controller)
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|
if res == -signal.SIGINT:
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|
print("Interrupted")
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|
break
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|
print()
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|
|
|
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|
else:
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|
|
# Run tests concurrently
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|
|
try:
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|
|
pool = multiprocessing.pool.ThreadPool(options.fast)
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|
for (controller, res) in pool.imap_unordered(do_run, to_run):
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|
res_string = 'OK' if res == 0 else 'FAILED'
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|
print(justify('Test group: ' + controller.section, res_string))
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|
if res:
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|
controller.print_extra_info()
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|
print(bytes_to_str(controller.stdout))
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|
failed.append(controller)
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|
if res == -signal.SIGINT:
|
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|
print("Interrupted")
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|
break
|
|
|
except KeyboardInterrupt:
|
|
|
return
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|
|
|
|
|
for controller in not_run:
|
|
|
print(justify('Test group: ' + controller.section, 'NOT RUN'))
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|
|
|
|
|
t_end = time.time()
|
|
|
t_tests = t_end - t_start
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|
|
nrunners = len(to_run)
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|
|
nfail = len(failed)
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|
|
# summarize results
|
|
|
print('_'*70)
|
|
|
print('Test suite completed for system with the following information:')
|
|
|
print(report())
|
|
|
took = "Took %.3fs." % t_tests
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|
|
print('Status: ', end='')
|
|
|
if not failed:
|
|
|
print('OK (%d test groups).' % nrunners, took)
|
|
|
else:
|
|
|
# If anything went wrong, point out what command to rerun manually to
|
|
|
# see the actual errors and individual summary
|
|
|
failed_sections = [c.section for c in failed]
|
|
|
print('ERROR - {} out of {} test groups failed ({}).'.format(nfail,
|
|
|
nrunners, ', '.join(failed_sections)), took)
|
|
|
print()
|
|
|
print('You may wish to rerun these, with:')
|
|
|
print(' iptest', *failed_sections)
|
|
|
print()
|
|
|
|
|
|
if options.coverage:
|
|
|
from coverage import coverage
|
|
|
cov = coverage(data_file='.coverage')
|
|
|
cov.combine()
|
|
|
cov.save()
|
|
|
|
|
|
# Coverage HTML report
|
|
|
if options.coverage == 'html':
|
|
|
html_dir = 'ipy_htmlcov'
|
|
|
shutil.rmtree(html_dir, ignore_errors=True)
|
|
|
print("Writing HTML coverage report to %s/ ... " % html_dir, end="")
|
|
|
sys.stdout.flush()
|
|
|
|
|
|
# Custom HTML reporter to clean up module names.
|
|
|
from coverage.html import HtmlReporter
|
|
|
class CustomHtmlReporter(HtmlReporter):
|
|
|
def find_code_units(self, morfs):
|
|
|
super(CustomHtmlReporter, self).find_code_units(morfs)
|
|
|
for cu in self.code_units:
|
|
|
nameparts = cu.name.split(os.sep)
|
|
|
if 'IPython' not in nameparts:
|
|
|
continue
|
|
|
ix = nameparts.index('IPython')
|
|
|
cu.name = '.'.join(nameparts[ix:])
|
|
|
|
|
|
# Reimplement the html_report method with our custom reporter
|
|
|
cov._harvest_data()
|
|
|
cov.config.from_args(omit='*{0}tests{0}*'.format(os.sep), html_dir=html_dir,
|
|
|
html_title='IPython test coverage',
|
|
|
)
|
|
|
reporter = CustomHtmlReporter(cov, cov.config)
|
|
|
reporter.report(None)
|
|
|
print('done.')
|
|
|
|
|
|
# Coverage XML report
|
|
|
elif options.coverage == 'xml':
|
|
|
cov.xml_report(outfile='ipy_coverage.xml')
|
|
|
|
|
|
if failed:
|
|
|
# Ensure that our exit code indicates failure
|
|
|
sys.exit(1)
|
|
|
|
|
|
argparser = argparse.ArgumentParser(description='Run IPython test suite')
|
|
|
argparser.add_argument('testgroups', nargs='*',
|
|
|
help='Run specified groups of tests. If omitted, run '
|
|
|
'all tests.')
|
|
|
argparser.add_argument('--all', action='store_true',
|
|
|
help='Include slow tests not run by default.')
|
|
|
argparser.add_argument('--slimerjs', action='store_true',
|
|
|
help="Use slimerjs if it's installed instead of phantomjs for casperjs tests.")
|
|
|
argparser.add_argument('--url', help="URL to use for the JS tests.")
|
|
|
argparser.add_argument('-j', '--fast', nargs='?', const=None, default=1, type=int,
|
|
|
help='Run test sections in parallel. This starts as many '
|
|
|
'processes as you have cores, or you can specify a number.')
|
|
|
argparser.add_argument('--xunit', action='store_true',
|
|
|
help='Produce Xunit XML results')
|
|
|
argparser.add_argument('--coverage', nargs='?', const=True, default=False,
|
|
|
help="Measure test coverage. Specify 'html' or "
|
|
|
"'xml' to get reports.")
|
|
|
argparser.add_argument('--subproc-streams', default='capture',
|
|
|
help="What to do with stdout/stderr from subprocesses. "
|
|
|
"'capture' (default), 'show' and 'discard' are the options.")
|
|
|
|
|
|
def default_options():
|
|
|
"""Get an argparse Namespace object with the default arguments, to pass to
|
|
|
:func:`run_iptestall`.
|
|
|
"""
|
|
|
options = argparser.parse_args([])
|
|
|
options.extra_args = []
|
|
|
return options
|
|
|
|
|
|
def main():
|
|
|
# iptest doesn't work correctly if the working directory is the
|
|
|
# root of the IPython source tree. Tell the user to avoid
|
|
|
# frustration.
|
|
|
if os.path.exists(os.path.join(os.getcwd(),
|
|
|
'IPython', 'testing', '__main__.py')):
|
|
|
print("Don't run iptest from the IPython source directory",
|
|
|
file=sys.stderr)
|
|
|
sys.exit(1)
|
|
|
# Arguments after -- should be passed through to nose. Argparse treats
|
|
|
# everything after -- as regular positional arguments, so we separate them
|
|
|
# first.
|
|
|
try:
|
|
|
ix = sys.argv.index('--')
|
|
|
except ValueError:
|
|
|
to_parse = sys.argv[1:]
|
|
|
extra_args = []
|
|
|
else:
|
|
|
to_parse = sys.argv[1:ix]
|
|
|
extra_args = sys.argv[ix+1:]
|
|
|
|
|
|
options = argparser.parse_args(to_parse)
|
|
|
options.extra_args = extra_args
|
|
|
|
|
|
run_iptestall(options)
|
|
|
|
|
|
|
|
|
if __name__ == '__main__':
|
|
|
main()
|
|
|
|
