137 lines
4.5 KiB
Python
137 lines
4.5 KiB
Python
import py
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def pytest_funcarg___pytest(request):
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return PytestArg(request)
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class PytestArg:
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def __init__(self, request):
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self.request = request
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self.monkeypatch = self.request.getfuncargvalue("monkeypatch")
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self.comregistry = py._com.Registry()
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self.monkeypatch.setattr(py._com, 'comregistry', self.comregistry)
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def gethookrecorder(self, hookspecs, registry=None):
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if registry is not None:
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self.monkeypatch.setattr(py._com, 'comregistry', registry)
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self.comregistry = registry
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hookrecorder = HookRecorder(self.comregistry)
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hookrecorder.start_recording(hookspecs)
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self.request.addfinalizer(hookrecorder.finish_recording)
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return hookrecorder
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class ParsedCall:
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def __init__(self, name, locals):
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assert '_name' not in locals
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self.__dict__.update(locals)
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self.__dict__.pop('self')
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self._name = name
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def __repr__(self):
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d = self.__dict__.copy()
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del d['_name']
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return "<ParsedCall %r(**%r)>" %(self._name, d)
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class HookRecorder:
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def __init__(self, comregistry):
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self._comregistry = comregistry
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self.calls = []
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self._recorders = {}
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def start_recording(self, hookspecs):
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assert hookspecs not in self._recorders
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class RecordCalls:
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_recorder = self
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for name, method in vars(hookspecs).items():
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if name[0] != "_":
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setattr(RecordCalls, name, self._makecallparser(method))
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recorder = RecordCalls()
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self._recorders[hookspecs] = recorder
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self._comregistry.register(recorder)
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self.hook = py._com.Hooks(hookspecs, registry=self._comregistry)
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def finish_recording(self):
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for recorder in self._recorders.values():
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self._comregistry.unregister(recorder)
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self._recorders.clear()
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def _makecallparser(self, method):
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name = method.__name__
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args, varargs, varkw, default = py.std.inspect.getargspec(method)
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if args[0] != "self":
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args.insert(0, 'self')
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fspec = py.std.inspect.formatargspec(args, varargs, varkw, default)
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# we use exec because we want to have early type
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# errors on wrong input arguments, using
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# *args/**kwargs delays this and gives errors
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# elsewhere
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exec py.code.compile("""
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def %(name)s%(fspec)s:
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self._recorder.calls.append(
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ParsedCall(%(name)r, locals()))
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""" % locals())
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return locals()[name]
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def getcalls(self, names):
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if isinstance(names, str):
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names = names.split()
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for name in names:
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for cls in self._recorders:
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if name in vars(cls):
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break
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else:
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raise ValueError("callname %r not found in %r" %(
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name, self._recorders.keys()))
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l = []
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for call in self.calls:
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if call._name in names:
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l.append(call)
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return l
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def popcall(self, name):
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for i, call in py.builtin.enumerate(self.calls):
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if call._name == name:
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del self.calls[i]
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return call
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raise ValueError("could not find call %r" %(name, ))
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def getcall(self, name):
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l = self.getcalls(name)
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assert len(l) == 1, (name, l)
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return l[0]
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def test_hookrecorder_basic():
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comregistry = py._com.Registry()
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rec = HookRecorder(comregistry)
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class ApiClass:
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def xyz(self, arg):
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pass
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rec.start_recording(ApiClass)
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rec.hook.xyz(arg=123)
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call = rec.popcall("xyz")
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assert call.arg == 123
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assert call._name == "xyz"
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py.test.raises(ValueError, "rec.popcall('abc')")
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reg = py._com.comregistry
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def test_functional_default(testdir, _pytest):
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assert _pytest.comregistry == py._com.comregistry
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assert _pytest.comregistry != reg
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def test_functional(testdir, linecomp):
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reprec = testdir.inline_runsource("""
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import py
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pytest_plugins="_pytest"
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def test_func(_pytest):
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class ApiClass:
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def xyz(self, arg): pass
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rec = _pytest.gethookrecorder(ApiClass)
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class Plugin:
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def xyz(self, arg):
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return arg + 1
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rec._comregistry.register(Plugin())
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res = rec.hook.xyz(arg=41)
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assert res == [42]
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""")
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reprec.assertoutcome(passed=1)
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