diff options
Diffstat (limited to 'lib/spack/external/pytest-fallback/_pytest/helpconfig.py')
| -rw-r--r-- | lib/spack/external/pytest-fallback/_pytest/helpconfig.py | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/lib/spack/external/pytest-fallback/_pytest/helpconfig.py b/lib/spack/external/pytest-fallback/_pytest/helpconfig.py new file mode 100644 index 0000000000..e744637f86 --- /dev/null +++ b/lib/spack/external/pytest-fallback/_pytest/helpconfig.py @@ -0,0 +1,184 @@ +""" version info, help messages, tracing configuration. """ +from __future__ import absolute_import, division, print_function + +import py +import pytest +from _pytest.config import PrintHelp +import os +import sys +from argparse import Action + + +class HelpAction(Action): + """This is an argparse Action that will raise an exception in + order to skip the rest of the argument parsing when --help is passed. + This prevents argparse from quitting due to missing required arguments + when any are defined, for example by ``pytest_addoption``. + This is similar to the way that the builtin argparse --help option is + implemented by raising SystemExit. + """ + + def __init__(self, + option_strings, + dest=None, + default=False, + help=None): + super(HelpAction, self).__init__( + option_strings=option_strings, + dest=dest, + const=True, + default=default, + nargs=0, + help=help) + + def __call__(self, parser, namespace, values, option_string=None): + setattr(namespace, self.dest, self.const) + + # We should only skip the rest of the parsing after preparse is done + if getattr(parser._parser, 'after_preparse', False): + raise PrintHelp + + +def pytest_addoption(parser): + group = parser.getgroup('debugconfig') + group.addoption('--version', action="store_true", + help="display pytest lib version and import information.") + group._addoption("-h", "--help", action=HelpAction, dest="help", + help="show help message and configuration info") + group._addoption('-p', action="append", dest="plugins", default=[], + metavar="name", + help="early-load given plugin (multi-allowed). " + "To avoid loading of plugins, use the `no:` prefix, e.g. " + "`no:doctest`.") + group.addoption('--traceconfig', '--trace-config', + action="store_true", default=False, + help="trace considerations of conftest.py files."), + group.addoption('--debug', + action="store_true", dest="debug", default=False, + help="store internal tracing debug information in 'pytestdebug.log'.") + group._addoption( + '-o', '--override-ini', nargs='*', dest="override_ini", + action="append", + help="override config option with option=value style, e.g. `-o xfail_strict=True`.") + + +@pytest.hookimpl(hookwrapper=True) +def pytest_cmdline_parse(): + outcome = yield + config = outcome.get_result() + if config.option.debug: + path = os.path.abspath("pytestdebug.log") + debugfile = open(path, 'w') + debugfile.write("versions pytest-%s, py-%s, " + "python-%s\ncwd=%s\nargs=%s\n\n" % ( + pytest.__version__, py.__version__, + ".".join(map(str, sys.version_info)), + os.getcwd(), config._origargs)) + config.trace.root.setwriter(debugfile.write) + undo_tracing = config.pluginmanager.enable_tracing() + sys.stderr.write("writing pytestdebug information to %s\n" % path) + + def unset_tracing(): + debugfile.close() + sys.stderr.write("wrote pytestdebug information to %s\n" % + debugfile.name) + config.trace.root.setwriter(None) + undo_tracing() + + config.add_cleanup(unset_tracing) + + +def pytest_cmdline_main(config): + if config.option.version: + p = py.path.local(pytest.__file__) + sys.stderr.write("This is pytest version %s, imported from %s\n" % + (pytest.__version__, p)) + plugininfo = getpluginversioninfo(config) + if plugininfo: + for line in plugininfo: + sys.stderr.write(line + "\n") + return 0 + elif config.option.help: + config._do_configure() + showhelp(config) + config._ensure_unconfigure() + return 0 + + +def showhelp(config): + reporter = config.pluginmanager.get_plugin('terminalreporter') + tw = reporter._tw + tw.write(config._parser.optparser.format_help()) + tw.line() + tw.line() + tw.line("[pytest] ini-options in the first " + "pytest.ini|tox.ini|setup.cfg file found:") + tw.line() + + for name in config._parser._ininames: + help, type, default = config._parser._inidict[name] + if type is None: + type = "string" + spec = "%s (%s)" % (name, type) + line = " %-24s %s" % (spec, help) + tw.line(line[:tw.fullwidth]) + + tw.line() + tw.line("environment variables:") + vars = [ + ("PYTEST_ADDOPTS", "extra command line options"), + ("PYTEST_PLUGINS", "comma-separated plugins to load during startup"), + ("PYTEST_DEBUG", "set to enable debug tracing of pytest's internals") + ] + for name, help in vars: + tw.line(" %-24s %s" % (name, help)) + tw.line() + tw.line() + + tw.line("to see available markers type: pytest --markers") + tw.line("to see available fixtures type: pytest --fixtures") + tw.line("(shown according to specified file_or_dir or current dir " + "if not specified)") + + for warningreport in reporter.stats.get('warnings', []): + tw.line("warning : " + warningreport.message, red=True) + return + + +conftest_options = [ + ('pytest_plugins', 'list of plugin names to load'), +] + + +def getpluginversioninfo(config): + lines = [] + plugininfo = config.pluginmanager.list_plugin_distinfo() + if plugininfo: + lines.append("setuptools registered plugins:") + for plugin, dist in plugininfo: + loc = getattr(plugin, '__file__', repr(plugin)) + content = "%s-%s at %s" % (dist.project_name, dist.version, loc) + lines.append(" " + content) + return lines + + +def pytest_report_header(config): + lines = [] + if config.option.debug or config.option.traceconfig: + lines.append("using: pytest-%s pylib-%s" % + (pytest.__version__, py.__version__)) + + verinfo = getpluginversioninfo(config) + if verinfo: + lines.extend(verinfo) + + if config.option.traceconfig: + lines.append("active plugins:") + items = config.pluginmanager.list_name_plugin() + for name, plugin in items: + if hasattr(plugin, '__file__'): + r = plugin.__file__ + else: + r = repr(plugin) + lines.append(" %-20s: %s" % (name, r)) + return lines |