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How to use _call_test_function method in autotest

Best Python code snippet using autotest_python

test.py

Source:test.py

...310                # Execute:311                os.chdir(self.outputdir)312                # call self.warmup cherry picking the arguments it accepts and313                # translate exceptions if needed314                _call_test_function(_cherry_pick_call, self.warmup,315                                    *args, **dargs)316                if hasattr(self, 'run_once'):317                    p_args, p_dargs = _cherry_pick_args(self.run_once,318                                                        args, dargs)319                    # pull in any non-* and non-** args from self.execute320                    for param in _get_nonstar_args(self.execute):321                        if param in dargs:322                            p_dargs[param] = dargs[param]323                else:324                    p_args, p_dargs = _cherry_pick_args(self.execute,325                                                        args, dargs)326                _call_test_function(self.execute, *p_args, **p_dargs)327            except Exception:328                try:329                    logging.exception('Exception escaping from test:')330                except:331                    pass # don't let logging exceptions here interfere332                # Save the exception while we run our cleanup() before333                # reraising it.334                exc_info = sys.exc_info()335                try:336                    try:337                        if run_cleanup:338                            _cherry_pick_call(self.cleanup, *args, **dargs)339                    except Exception:340                        print 'Ignoring exception during cleanup() phase:'341                        traceback.print_exc()342                        print 'Now raising the earlier %s error' % exc_info[0]343                    self.crash_handler_report()344                finally:345                    self.job.logging.restore()346                    try:347                        raise exc_info[0], exc_info[1], exc_info[2]348                    finally:349                        # http://docs.python.org/library/sys.html#sys.exc_info350                        # Be nice and prevent a circular reference.351                        del exc_info352            else:353                try:354                    if run_cleanup:355                        _cherry_pick_call(self.cleanup, *args, **dargs)356                    self.crash_handler_report()357                finally:358                    self.job.logging.restore()359        except error.AutotestError:360            if self.network_destabilizing:361                self.job.enable_warnings("NETWORK")362            # Pass already-categorized errors on up.363            raise364        except Exception, e:365            if self.network_destabilizing:366                self.job.enable_warnings("NETWORK")367            # Anything else is an ERROR in our own code, not execute().368            raise error.UnhandledTestError(e)369        else:370            if self.network_destabilizing:371                self.job.enable_warnings("NETWORK")372def _get_nonstar_args(func):373    """Extract all the (normal) function parameter names.374    Given a function, returns a tuple of parameter names, specifically375    excluding the * and ** parameters, if the function accepts them.376    @param func: A callable that we want to chose arguments for.377    @return: A tuple of parameters accepted by the function.378    """379    return func.func_code.co_varnames[:func.func_code.co_argcount]380def _cherry_pick_args(func, args, dargs):381    """Sanitize positional and keyword arguments before calling a function.382    Given a callable (func), an argument tuple and a dictionary of keyword383    arguments, pick only those arguments which the function is prepared to384    accept and return a new argument tuple and keyword argument dictionary.385    Args:386      func: A callable that we want to choose arguments for.387      args: A tuple of positional arguments to consider passing to func.388      dargs: A dictionary of keyword arguments to consider passing to func.389    Returns:390      A tuple of: (args tuple, keyword arguments dictionary)391    """392    # Cherry pick args:393    if func.func_code.co_flags & 0x04:394        # func accepts *args, so return the entire args.395        p_args = args396    else:397        p_args = ()398    # Cherry pick dargs:399    if func.func_code.co_flags & 0x08:400        # func accepts **dargs, so return the entire dargs.401        p_dargs = dargs402    else:403        # Only return the keyword arguments that func accepts.404        p_dargs = {}405        for param in _get_nonstar_args(func):406            if param in dargs:407                p_dargs[param] = dargs[param]408    return p_args, p_dargs409def _cherry_pick_call(func, *args, **dargs):410    """Cherry picks arguments from args/dargs based on what "func" accepts411    and calls the function with the picked arguments."""412    p_args, p_dargs = _cherry_pick_args(func, args, dargs)413    return func(*p_args, **p_dargs)414def _validate_args(args, dargs, *funcs):415    """Verify that arguments are appropriate for at least one callable.416    Given a list of callables as additional parameters, verify that417    the proposed keyword arguments in dargs will each be accepted by at least418    one of the callables.419    NOTE: args is currently not supported and must be empty.420    Args:421      args: A tuple of proposed positional arguments.422      dargs: A dictionary of proposed keyword arguments.423      *funcs: Callables to be searched for acceptance of args and dargs.424    Raises:425      error.AutotestError: if an arg won't be accepted by any of *funcs.426    """427    all_co_flags = 0428    all_varnames = ()429    for func in funcs:430        all_co_flags |= func.func_code.co_flags431        all_varnames += func.func_code.co_varnames[:func.func_code.co_argcount]432    # Check if given args belongs to at least one of the methods below.433    if len(args) > 0:434        # Current implementation doesn't allow the use of args.435        raise error.TestError('Unnamed arguments not accepted. Please '436                              'call job.run_test with named args only')437    # Check if given dargs belongs to at least one of the methods below.438    if len(dargs) > 0:439        if not all_co_flags & 0x08:440            # no func accepts *dargs, so:441            for param in dargs:442                if not param in all_varnames:443                    raise error.AutotestError('Unknown parameter: %s' % param)444def _installtest(job, url):445    (group, name) = job.pkgmgr.get_package_name(url, 'test')446    # Bail if the test is already installed447    group_dir = os.path.join(job.testdir, "download", group)448    if os.path.exists(os.path.join(group_dir, name)):449        return (group, name)450    # If the group directory is missing create it and add451    # an empty  __init__.py so that sub-directories are452    # considered for import.453    if not os.path.exists(group_dir):454        os.makedirs(group_dir)455        f = file(os.path.join(group_dir, '__init__.py'), 'w+')456        f.close()457    print name + ": installing test url=" + url458    tarball = os.path.basename(url)459    tarball_path = os.path.join(group_dir, tarball)460    test_dir = os.path.join(group_dir, name)461    job.pkgmgr.fetch_pkg(tarball, tarball_path,462                         repo_url = os.path.dirname(url))463    # Create the directory for the test464    if not os.path.exists(test_dir):465        os.mkdir(os.path.join(group_dir, name))466    job.pkgmgr.untar_pkg(tarball_path, test_dir)467    os.remove(tarball_path)468    # For this 'sub-object' to be importable via the name469    # 'group.name' we need to provide an __init__.py,470    # so link the main entry point to this.471    os.symlink(name + '.py', os.path.join(group_dir, name,472                            '__init__.py'))473    # The test is now installed.474    return (group, name)475def _call_test_function(func, *args, **dargs):476    """Calls a test function and translates exceptions so that errors477    inside test code are considered test failures."""478    try:479        return func(*args, **dargs)480    except error.AutotestError:481        # Pass already-categorized errors on up as is.482        raise483    except Exception, e:484        # Other exceptions must be treated as a FAIL when485        # raised during the test functions486        raise error.UnhandledTestFail(e)487def runtest(job, url, tag, args, dargs,488            local_namespace={}, global_namespace={},489            before_test_hook=None, after_test_hook=None,...

unitspec.py

Source:unitspec.py

...22    @wraps(func)23    def run_spec(*args, **kwargs):24        self = next(iter(args or []), None)25        context = Context()26        _call_test_function(func, context, *args, **kwargs)27        test_func = _get_original_func(func)  # we need to get to the test function to find spec step methods28        steps = get_spec_steps(test_func, self)29        if len(steps) == 0:30            return31        _output_step("* SPEC: ", test_func)32        try:33            for name, section in steps.items():34                if name.startswith("given"):35                    _output_step("  ", section)36                    section(context)37                if name.startswith("when"):38                    _output_step("  ", section)39                    section(context)40                if name.startswith("it_should"):41                    _output_step("    > ", section)42                    section(context)43        finally:44            cleanups = _get_all_named_like(steps, "cleanup")45            for cleanup in cleanups:46                _output_step("  ", cleanup)47                cleanup(context)48    return run_spec49class MetaSpec(type):50    def __new__(mcs, clsname, bases, attrs):51        decorated_attrs = {}52        for name, val in attrs.items():53            if name.startswith("test_") and inspect.isroutine(val):54                decorated_attrs[name.replace("_", " ")] = spec(val)55            else:56                decorated_attrs[name] = val57        return super(MetaSpec, mcs).__new__(mcs, clsname, bases, decorated_attrs)58    def __getattr__(self, name):59        return _get_spaced_test(self, name)60def with_metaclass(meta, *bases):61    """Create a base class with a metaclass."""62    class Metaclass(meta):63        def __new__(cls, name, this_bases, d):64            return meta(name, bases, d)65    return type.__new__(Metaclass, 'temporary_class', (), {})66class SpecTestCase(with_metaclass(MetaSpec, unittest.TestCase)):67    def __getattr__(self, name):68        return _get_spaced_test(self, name)69def _is_step_name(name):70    return name.startswith("given")\71        or name.startswith("when")\72        or name.startswith("it_should")\73        or name.startswith("cleanup")74def _get_original_func(func):75    if isinstance(func, (classmethod, staticmethod)):76        return func.__func__77    # get original func from decorators (only for those who follow standard update_wrapper/wraps pattern)78    while hasattr(func, "__wrapped__"):79        func = func.__wrapped__80    return func81def _call_test_function(func, context, *args, **kwargs):82    args_names = inspect.getargspec(_get_original_func(func))[0]83    if "ctx" in args_names:84        kwargs["ctx"] = context85    if isinstance(func, (classmethod, staticmethod)):86        self = args[0]87        args = args[1:]88        func = func.__get__(self, type(self))  # we need to call underlying static or class function89    func(*args, **kwargs)90def _get_all_named_like(dict_, name):91    return [v for k, v in dict_.items() if k.startswith(name)]92def _output_step(message, func):93    func_name = func.__name__.replace("_", " ")94    print(message + func_name)95def _get_spaced_test(self, name):...

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