""" support for skip/xfail functions and markers. """ import os import sys import traceback import py import pytest from _pytest.mark import MarkInfo def pytest_addoption(parser): group = parser.getgroup("general") group.addoption('--runxfail', action="store_true", dest="runxfail", default=False, help="run tests even if they are marked xfail") def pytest_configure(config): if config.option.runxfail: old = pytest.xfail config._cleanup.append(lambda: setattr(pytest, "xfail", old)) def nop(*args, **kwargs): pass nop.Exception = XFailed setattr(pytest, "xfail", nop) config.addinivalue_line("markers", "skipif(condition): skip the given test function if eval(condition) " "results in a True value. Evaluation happens within the " "module global context. Example: skipif('sys.platform == \"win32\"') " "skips the test if we are on the win32 platform. see " "http://pytest.org/latest/skipping.html" ) config.addinivalue_line("markers", "xfail(condition, reason=None, run=True, raises=None): mark the the test function " "as an expected failure if eval(condition) has a True value. " "Optionally specify a reason for better reporting and run=False if " "you don't even want to execute the test function. If only specific " "exception(s) are expected, you can list them in raises, and if the test fails " "in other ways, it will be reported as a true failure. " "See http://pytest.org/latest/skipping.html" ) def pytest_namespace(): return dict(xfail=xfail) class XFailed(pytest.fail.Exception): """ raised from an explicit call to pytest.xfail() """ def xfail(reason=""): """ xfail an executing test or setup functions with the given reason.""" __tracebackhide__ = True raise XFailed(reason) xfail.Exception = XFailed class MarkEvaluator: def __init__(self, item, name): self.item = item self.name = name @property def holder(self): return self.item.keywords.get(self.name) def __bool__(self): return bool(self.holder) __nonzero__ = __bool__ def wasvalid(self): return not hasattr(self, 'exc') def invalidraise(self, exc): raises = self.get('raises') if not raises: return return not isinstance(exc, raises) def istrue(self): try: return self._istrue() except Exception: self.exc = sys.exc_info() if isinstance(self.exc[1], SyntaxError): msg = [" " * (self.exc[1].offset + 4) + "^",] msg.append("SyntaxError: invalid syntax") else: msg = traceback.format_exception_only(*self.exc[:2]) pytest.fail("Error evaluating %r expression\n" " %s\n" "%s" %(self.name, self.expr, "\n".join(msg)), pytrace=False) def _getglobals(self): d = {'os': os, 'sys': sys, 'config': self.item.config} func = self.item.obj try: d.update(func.__globals__) except AttributeError: d.update(func.func_globals) return d def _istrue(self): if hasattr(self, 'result'): return self.result if self.holder: d = self._getglobals() if self.holder.args: self.result = False # "holder" might be a MarkInfo or a MarkDecorator; only # MarkInfo keeps track of all parameters it received in an # _arglist attribute if hasattr(self.holder, '_arglist'): arglist = self.holder._arglist else: arglist = [(self.holder.args, self.holder.kwargs)] for args, kwargs in arglist: for expr in args: self.expr = expr if isinstance(expr, py.builtin._basestring): result = cached_eval(self.item.config, expr, d) else: if "reason" not in kwargs: # XXX better be checked at collection time msg = "you need to specify reason=STRING " \ "when using booleans as conditions." pytest.fail(msg) result = bool(expr) if result: self.result = True self.reason = kwargs.get('reason', None) self.expr = expr return self.result else: self.result = True return getattr(self, 'result', False) def get(self, attr, default=None): return self.holder.kwargs.get(attr, default) def getexplanation(self): expl = getattr(self, 'reason', None) or self.get('reason', None) if not expl: if not hasattr(self, 'expr'): return "" else: return "condition: " + str(self.expr) return expl @pytest.hookimpl(tryfirst=True) def pytest_runtest_setup(item): # Check if skip or skipif are specified as pytest marks skipif_info = item.keywords.get('skipif') if isinstance(skipif_info, MarkInfo): eval_skipif = MarkEvaluator(item, 'skipif') if eval_skipif.istrue(): item._evalskip = eval_skipif pytest.skip(eval_skipif.getexplanation()) skip_info = item.keywords.get('skip') if isinstance(skip_info, MarkInfo): item._evalskip = True if 'reason' in skip_info.kwargs: pytest.skip(skip_info.kwargs['reason']) elif skip_info.args: pytest.skip(skip_info.args[0]) else: pytest.skip("unconditional skip") item._evalxfail = MarkEvaluator(item, 'xfail') check_xfail_no_run(item) def pytest_pyfunc_call(pyfuncitem): check_xfail_no_run(pyfuncitem) def check_xfail_no_run(item): if not item.config.option.runxfail: evalxfail = item._evalxfail if evalxfail.istrue(): if not evalxfail.get('run', True): pytest.xfail("[NOTRUN] " + evalxfail.getexplanation()) @pytest.hookimpl(hookwrapper=True) def pytest_runtest_makereport(item, call): outcome = yield rep = outcome.get_result() evalxfail = getattr(item, '_evalxfail', None) evalskip = getattr(item, '_evalskip', None) # unitttest special case, see setting of _unexpectedsuccess if hasattr(item, '_unexpectedsuccess') and rep.when == "call": # we need to translate into how pytest encodes xpass rep.wasxfail = "reason: " + repr(item._unexpectedsuccess) rep.outcome = "failed" elif item.config.option.runxfail: pass # don't interefere elif call.excinfo and call.excinfo.errisinstance(pytest.xfail.Exception): rep.wasxfail = "reason: " + call.excinfo.value.msg rep.outcome = "skipped" elif evalxfail and not rep.skipped and evalxfail.wasvalid() and \ evalxfail.istrue(): if call.excinfo: if evalxfail.invalidraise(call.excinfo.value): rep.outcome = "failed" else: rep.outcome = "skipped" rep.wasxfail = evalxfail.getexplanation() elif call.when == "call": rep.outcome = "failed" # xpass outcome rep.wasxfail = evalxfail.getexplanation() elif evalskip is not None and rep.skipped and type(rep.longrepr) is tuple: # skipped by mark.skipif; change the location of the failure # to point to the item definition, otherwise it will display # the location of where the skip exception was raised within pytest filename, line, reason = rep.longrepr filename, line = item.location[:2] rep.longrepr = filename, line, reason # called by terminalreporter progress reporting def pytest_report_teststatus(report): if hasattr(report, "wasxfail"): if report.skipped: return "xfailed", "x", "xfail" elif report.failed: return "xpassed", "X", ("XPASS", {'yellow': True}) # called by the terminalreporter instance/plugin def pytest_terminal_summary(terminalreporter): tr = terminalreporter if not tr.reportchars: #for name in "xfailed skipped failed xpassed": # if not tr.stats.get(name, 0): # tr.write_line("HINT: use '-r' option to see extra " # "summary info about tests") # break return lines = [] for char in tr.reportchars: if char == "x": show_xfailed(terminalreporter, lines) elif char == "X": show_xpassed(terminalreporter, lines) elif char in "fF": show_simple(terminalreporter, lines, 'failed', "FAIL %s") elif char in "sS": show_skipped(terminalreporter, lines) elif char == "E": show_simple(terminalreporter, lines, 'error', "ERROR %s") elif char == 'p': show_simple(terminalreporter, lines, 'passed', "PASSED %s") if lines: tr._tw.sep("=", "short test summary info") for line in lines: tr._tw.line(line) def show_simple(terminalreporter, lines, stat, format): failed = terminalreporter.stats.get(stat) if failed: for rep in failed: pos = terminalreporter.config.cwd_relative_nodeid(rep.nodeid) lines.append(format %(pos,)) def show_xfailed(terminalreporter, lines): xfailed = terminalreporter.stats.get("xfailed") if xfailed: for rep in xfailed: pos = terminalreporter.config.cwd_relative_nodeid(rep.nodeid) reason = rep.wasxfail lines.append("XFAIL %s" % (pos,)) if reason: lines.append(" " + str(reason)) def show_xpassed(terminalreporter, lines): xpassed = terminalreporter.stats.get("xpassed") if xpassed: for rep in xpassed: pos = terminalreporter.config.cwd_relative_nodeid(rep.nodeid) reason = rep.wasxfail lines.append("XPASS %s %s" %(pos, reason)) def cached_eval(config, expr, d): if not hasattr(config, '_evalcache'): config._evalcache = {} try: return config._evalcache[expr] except KeyError: import _pytest._code exprcode = _pytest._code.compile(expr, mode="eval") config._evalcache[expr] = x = eval(exprcode, d) return x def folded_skips(skipped): d = {} for event in skipped: key = event.longrepr assert len(key) == 3, (event, key) d.setdefault(key, []).append(event) l = [] for key, events in d.items(): l.append((len(events),) + key) return l def show_skipped(terminalreporter, lines): tr = terminalreporter skipped = tr.stats.get('skipped', []) if skipped: #if not tr.hasopt('skipped'): # tr.write_line( # "%d skipped tests, specify -rs for more info" % # len(skipped)) # return fskips = folded_skips(skipped) if fskips: #tr.write_sep("_", "skipped test summary") for num, fspath, lineno, reason in fskips: if reason.startswith("Skipped: "): reason = reason[9:] lines.append("SKIP [%d] %s:%d: %s" % (num, fspath, lineno, reason))