391 lines
13 KiB
Python
391 lines
13 KiB
Python
""" basic collect and runtest protocol implementations """
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import py, sys
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from py._code.code import TerminalRepr
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def pytest_namespace():
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return {
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'fail' : fail,
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'skip' : skip,
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'importorskip' : importorskip,
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'exit' : exit,
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}
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#
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# pytest plugin hooks
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# XXX move to pytest_sessionstart and fix py.test owns tests
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def pytest_configure(config):
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config._setupstate = SetupState()
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def pytest_sessionfinish(session, exitstatus):
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if hasattr(session.config, '_setupstate'):
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hook = session.config.hook
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rep = hook.pytest__teardown_final(session=session)
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if rep:
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hook.pytest__teardown_final_logerror(session=session, report=rep)
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session.exitstatus = 1
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class NodeInfo:
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def __init__(self, location):
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self.location = location
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def pytest_runtest_protocol(item):
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item.ihook.pytest_runtest_logstart(
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nodeid=item.nodeid, location=item.location,
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)
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runtestprotocol(item)
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return True
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def runtestprotocol(item, log=True):
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rep = call_and_report(item, "setup", log)
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reports = [rep]
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if rep.passed:
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reports.append(call_and_report(item, "call", log))
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reports.append(call_and_report(item, "teardown", log))
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return reports
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def pytest_runtest_setup(item):
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item.config._setupstate.prepare(item)
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def pytest_runtest_call(item):
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item.runtest()
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def pytest_runtest_teardown(item):
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item.config._setupstate.teardown_exact(item)
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def pytest__teardown_final(session):
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call = CallInfo(session.config._setupstate.teardown_all, when="teardown")
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if call.excinfo:
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ntraceback = call.excinfo.traceback .cut(excludepath=py._pydir)
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call.excinfo.traceback = ntraceback.filter()
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longrepr = call.excinfo.getrepr(funcargs=True)
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return TeardownErrorReport(longrepr)
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def pytest_report_teststatus(report):
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if report.when in ("setup", "teardown"):
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if report.failed:
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# category, shortletter, verbose-word
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return "error", "E", "ERROR"
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elif report.skipped:
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return "skipped", "s", "SKIPPED"
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else:
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return "", "", ""
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#
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# Implementation
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def call_and_report(item, when, log=True):
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call = call_runtest_hook(item, when)
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hook = item.ihook
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report = hook.pytest_runtest_makereport(item=item, call=call)
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if log and (when == "call" or not report.passed):
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hook.pytest_runtest_logreport(report=report)
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return report
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def call_runtest_hook(item, when):
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hookname = "pytest_runtest_" + when
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ihook = getattr(item.ihook, hookname)
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return CallInfo(lambda: ihook(item=item), when=when)
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class CallInfo:
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""" Result/Exception info a function invocation. """
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#: None or ExceptionInfo object.
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excinfo = None
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def __init__(self, func, when):
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#: context of invocation: one of "setup", "call",
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#: "teardown", "memocollect"
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self.when = when
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try:
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self.result = func()
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except KeyboardInterrupt:
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raise
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except:
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self.excinfo = py.code.ExceptionInfo()
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def __repr__(self):
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if self.excinfo:
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status = "exception: %s" % str(self.excinfo.value)
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else:
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status = "result: %r" % (self.result,)
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return "<CallInfo when=%r %s>" % (self.when, status)
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def getslaveinfoline(node):
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try:
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return node._slaveinfocache
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except AttributeError:
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d = node.slaveinfo
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ver = "%s.%s.%s" % d['version_info'][:3]
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node._slaveinfocache = s = "[%s] %s -- Python %s %s" % (
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d['id'], d['sysplatform'], ver, d['executable'])
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return s
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class BaseReport(object):
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def toterminal(self, out):
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longrepr = self.longrepr
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if hasattr(self, 'node'):
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out.line(getslaveinfoline(self.node))
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if hasattr(longrepr, 'toterminal'):
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longrepr.toterminal(out)
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else:
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out.line(str(longrepr))
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passed = property(lambda x: x.outcome == "passed")
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failed = property(lambda x: x.outcome == "failed")
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skipped = property(lambda x: x.outcome == "skipped")
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@property
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def fspath(self):
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return self.nodeid.split("::")[0]
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def pytest_runtest_makereport(item, call):
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when = call.when
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keywords = dict([(x,1) for x in item.keywords])
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excinfo = call.excinfo
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if not call.excinfo:
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outcome = "passed"
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longrepr = None
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else:
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excinfo = call.excinfo
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if not isinstance(excinfo, py.code.ExceptionInfo):
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outcome = "failed"
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longrepr = excinfo
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elif excinfo.errisinstance(py.test.skip.Exception):
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outcome = "skipped"
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r = item._repr_failure_py(excinfo, "line").reprcrash
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longrepr = (str(r.path), r.lineno, r.message)
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else:
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outcome = "failed"
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if call.when == "call":
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longrepr = item.repr_failure(excinfo)
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else: # exception in setup or teardown
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longrepr = item._repr_failure_py(excinfo)
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return TestReport(item.nodeid, item.location,
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keywords, outcome, longrepr, when)
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class TestReport(BaseReport):
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""" Basic test report object (also used for setup and teardown calls if
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they fail).
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"""
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def __init__(self, nodeid, location,
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keywords, outcome, longrepr, when):
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#: normalized collection node id
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self.nodeid = nodeid
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#: a (filesystempath, lineno, domaininfo) tuple indicating the
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#: actual location of a test item - it might be different from the
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#: collected one e.g. if a method is inherited from a different module.
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self.location = location
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#: a name -> value dictionary containing all keywords and
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#: markers associated with a test invocation.
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self.keywords = keywords
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#: test outcome, always one of "passed", "failed", "skipped".
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self.outcome = outcome
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#: None or a failure representation.
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self.longrepr = longrepr
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#: one of 'setup', 'call', 'teardown' to indicate runtest phase.
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self.when = when
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def __repr__(self):
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return "<TestReport %r when=%r outcome=%r>" % (
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self.nodeid, self.when, self.outcome)
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class TeardownErrorReport(BaseReport):
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outcome = "failed"
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when = "teardown"
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def __init__(self, longrepr):
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self.longrepr = longrepr
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def pytest_make_collect_report(collector):
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call = CallInfo(collector._memocollect, "memocollect")
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longrepr = None
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if not call.excinfo:
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outcome = "passed"
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else:
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if call.excinfo.errisinstance(py.test.skip.Exception):
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outcome = "skipped"
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r = collector._repr_failure_py(call.excinfo, "line").reprcrash
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longrepr = (str(r.path), r.lineno, r.message)
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else:
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outcome = "failed"
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errorinfo = collector.repr_failure(call.excinfo)
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if not hasattr(errorinfo, "toterminal"):
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errorinfo = CollectErrorRepr(errorinfo)
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longrepr = errorinfo
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return CollectReport(collector.nodeid, outcome, longrepr,
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getattr(call, 'result', None))
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class CollectReport(BaseReport):
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def __init__(self, nodeid, outcome, longrepr, result):
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self.nodeid = nodeid
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self.outcome = outcome
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self.longrepr = longrepr
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self.result = result or []
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@property
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def location(self):
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return (self.fspath, None, self.fspath)
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def __repr__(self):
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return "<CollectReport %r lenresult=%s outcome=%r>" % (
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self.nodeid, len(self.result), self.outcome)
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class CollectErrorRepr(TerminalRepr):
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def __init__(self, msg):
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self.longrepr = msg
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def toterminal(self, out):
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out.line(str(self.longrepr), red=True)
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class SetupState(object):
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""" shared state for setting up/tearing down test items or collectors. """
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def __init__(self):
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self.stack = []
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self._finalizers = {}
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def addfinalizer(self, finalizer, colitem):
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""" attach a finalizer to the given colitem.
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if colitem is None, this will add a finalizer that
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is called at the end of teardown_all().
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"""
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assert hasattr(finalizer, '__call__')
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#assert colitem in self.stack
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self._finalizers.setdefault(colitem, []).append(finalizer)
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def _pop_and_teardown(self):
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colitem = self.stack.pop()
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self._teardown_with_finalization(colitem)
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def _callfinalizers(self, colitem):
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finalizers = self._finalizers.pop(colitem, None)
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while finalizers:
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fin = finalizers.pop()
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fin()
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def _teardown_with_finalization(self, colitem):
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self._callfinalizers(colitem)
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if colitem:
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colitem.teardown()
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for colitem in self._finalizers:
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assert colitem is None or colitem in self.stack
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def teardown_all(self):
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while self.stack:
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self._pop_and_teardown()
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self._teardown_with_finalization(None)
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assert not self._finalizers
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def teardown_exact(self, item):
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if self.stack and item == self.stack[-1]:
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self._pop_and_teardown()
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else:
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self._callfinalizers(item)
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def prepare(self, colitem):
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""" setup objects along the collector chain to the test-method
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and teardown previously setup objects."""
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needed_collectors = colitem.listchain()
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while self.stack:
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if self.stack == needed_collectors[:len(self.stack)]:
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break
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self._pop_and_teardown()
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# check if the last collection node has raised an error
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for col in self.stack:
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if hasattr(col, '_prepare_exc'):
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py.builtin._reraise(*col._prepare_exc)
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for col in needed_collectors[len(self.stack):]:
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self.stack.append(col)
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try:
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col.setup()
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except Exception:
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col._prepare_exc = sys.exc_info()
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raise
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# =============================================================
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# Test OutcomeExceptions and helpers for creating them.
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class OutcomeException(Exception):
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""" OutcomeException and its subclass instances indicate and
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contain info about test and collection outcomes.
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"""
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def __init__(self, msg=None, pytrace=True):
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self.msg = msg
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self.pytrace = pytrace
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def __repr__(self):
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if self.msg:
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return str(self.msg)
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return "<%s instance>" %(self.__class__.__name__,)
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__str__ = __repr__
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class Skipped(OutcomeException):
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# XXX hackish: on 3k we fake to live in the builtins
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# in order to have Skipped exception printing shorter/nicer
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__module__ = 'builtins'
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class Failed(OutcomeException):
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""" raised from an explicit call to py.test.fail() """
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__module__ = 'builtins'
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class Exit(KeyboardInterrupt):
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""" raised for immediate program exits (no tracebacks/summaries)"""
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def __init__(self, msg="unknown reason"):
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self.msg = msg
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KeyboardInterrupt.__init__(self, msg)
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# exposed helper methods
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def exit(msg):
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""" exit testing process as if KeyboardInterrupt was triggered. """
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__tracebackhide__ = True
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raise Exit(msg)
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exit.Exception = Exit
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def skip(msg=""):
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""" skip an executing test with the given message. Note: it's usually
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better to use the py.test.mark.skipif marker to declare a test to be
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skipped under certain conditions like mismatching platforms or
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dependencies. See the pytest_skipping plugin for details.
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"""
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__tracebackhide__ = True
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raise Skipped(msg=msg)
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skip.Exception = Skipped
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def fail(msg="", pytrace=True):
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""" explicitely fail an currently-executing test with the given Message.
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if @pytrace is not True the msg represents the full failure information.
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"""
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__tracebackhide__ = True
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raise Failed(msg=msg, pytrace=pytrace)
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fail.Exception = Failed
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def importorskip(modname, minversion=None):
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""" return imported module if it has a higher __version__ than the
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optionally specified 'minversion' - otherwise call py.test.skip()
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with a message detailing the mismatch.
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"""
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__tracebackhide__ = True
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compile(modname, '', 'eval') # to catch syntaxerrors
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try:
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mod = __import__(modname, None, None, ['__doc__'])
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except ImportError:
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py.test.skip("could not import %r" %(modname,))
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if minversion is None:
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return mod
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verattr = getattr(mod, '__version__', None)
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if isinstance(minversion, str):
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minver = minversion.split(".")
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else:
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minver = list(minversion)
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if verattr is None or verattr.split(".") < minver:
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py.test.skip("module %r has __version__ %r, required is: %r" %(
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modname, verattr, minversion))
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return mod
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