How to use _dump_function_call method in autotest

Best Python code snippet using autotest_python Github


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...108 if key not in dargs:109 return False110 return True111 def __str__(self):112 return _dump_function_call(self.symbol, self.args, self.dargs)113class function_mapping(base_mapping):114 def __init__(self, symbol, return_val, *args, **dargs):115 super(function_mapping, self).__init__(symbol, return_val, *args,116 **dargs)117 def and_return(self, return_obj):118 self.return_obj = return_obj119 def and_raises(self, error):120 self.error = error121class function_any_args_mapping(function_mapping):122 """A mock function mapping that doesn't verify its arguments."""123 def match(self, *args, **dargs):124 return True125class mock_function(object):126 def __init__(self, symbol, default_return_val=None,127 record=None, playback=None):128 self.default_return_val = default_return_val129 self.num_calls = 0130 self.args = []131 self.dargs = []132 self.symbol = symbol133 self.record = record134 self.playback = playback135 self.__name__ = symbol136 def __call__(self, *args, **dargs):137 self.num_calls += 1138 self.args.append(args)139 self.dargs.append(dargs)140 if self.playback:141 return self.playback(self.symbol, *args, **dargs)142 else:143 return self.default_return_val144 def expect_call(self, *args, **dargs):145 mapping = function_mapping(self.symbol, None, *args, **dargs)146 if self.record:147 self.record(mapping)148 return mapping149 def expect_any_call(self):150 """Like expect_call but don't give a hoot what arguments are passed."""151 mapping = function_any_args_mapping(self.symbol, None)152 if self.record:153 self.record(mapping)154 return mapping155class mask_function(mock_function):156 def __init__(self, symbol, original_function, default_return_val=None,157 record=None, playback=None):158 super(mask_function, self).__init__(symbol,159 default_return_val,160 record, playback)161 self.original_function = original_function162 def run_original_function(self, *args, **dargs):163 return self.original_function(*args, **dargs)164class mock_class(object):165 def __init__(self, cls, name, default_ret_val=None,166 record=None, playback=None):167 self.__name = name168 self.__record = record169 self.__playback = playback170 for symbol in dir(cls):171 if symbol.startswith("_"):172 continue173 orig_symbol = getattr(cls, symbol)174 if callable(orig_symbol):175 f_name = "%s.%s" % (self.__name, symbol)176 func = mock_function(f_name, default_ret_val,177 self.__record, self.__playback)178 setattr(self, symbol, func)179 else:180 setattr(self, symbol, orig_symbol)181 def __repr__(self):182 return '<mock_class: %s>' % self.__name183class mock_god(object):184 NONEXISTENT_ATTRIBUTE = object()185 def __init__(self, debug=False, fail_fast=True, ut=None):186 """187 With debug=True, all recorded method calls will be printed as188 they happen.189 With fail_fast=True, unexpected calls will immediately cause an190 exception to be raised. With False, they will be silently recorded and191 only reported when check_playback() is called.192 """193 self.recording = collections.deque()194 self.errors = []195 self._stubs = []196 self._debug = debug197 self._fail_fast = fail_fast198 self._ut = ut199 def set_fail_fast(self, fail_fast):200 self._fail_fast = fail_fast201 def create_mock_class_obj(self, cls, name, default_ret_val=None):202 record = self.__record_call203 playback = self.__method_playback204 errors = self.errors205 class cls_sub(cls):206 cls_count = 0207 # overwrite the initializer208 def __init__(self, *args, **dargs):209 pass210 @classmethod211 def expect_new(typ, *args, **dargs):212 obj = typ.make_new(*args, **dargs)213 mapping = base_mapping(name, obj, *args, **dargs)214 record(mapping)215 return obj216 def __new__(typ, *args, **dargs):217 return playback(name, *args, **dargs)218 @classmethod219 def make_new(typ, *args, **dargs):220 obj = super(cls_sub, typ).__new__(typ, *args,221 **dargs)222 typ.cls_count += 1223 obj_name = "%s_%s" % (name, typ.cls_count)224 for symbol in dir(obj):225 if (symbol.startswith("__") and226 symbol.endswith("__")):227 continue228 if isinstance(getattr(typ, symbol, None), property):229 continue230 orig_symbol = getattr(obj, symbol)231 if callable(orig_symbol):232 f_name = ("%s.%s" %233 (obj_name, symbol))234 func = mock_function(f_name,235 default_ret_val,236 record,237 playback)238 setattr(obj, symbol, func)239 else:240 setattr(obj, symbol,241 orig_symbol)242 return obj243 return cls_sub244 def create_mock_class(self, cls, name, default_ret_val=None):245 """246 Given something that defines a namespace cls (class, object,247 module), and a (hopefully unique) name, will create a248 mock_class object with that name and that possessess all249 the public attributes of cls. default_ret_val sets the250 default_ret_val on all methods of the cls mock.251 """252 return mock_class(cls, name, default_ret_val,253 self.__record_call, self.__method_playback)254 def create_mock_function(self, symbol, default_return_val=None):255 """256 create a mock_function with name symbol and default return257 value of default_ret_val.258 """259 return mock_function(symbol, default_return_val,260 self.__record_call, self.__method_playback)261 def mock_up(self, obj, name, default_ret_val=None):262 """263 Given an object (class instance or module) and a registration264 name, then replace all its methods with mock function objects265 (passing the orignal functions to the mock functions).266 """267 for symbol in dir(obj):268 if symbol.startswith("__"):269 continue270 orig_symbol = getattr(obj, symbol)271 if callable(orig_symbol):272 f_name = "%s.%s" % (name, symbol)273 func = mask_function(f_name, orig_symbol,274 default_ret_val,275 self.__record_call,276 self.__method_playback)277 setattr(obj, symbol, func)278 def stub_with(self, namespace, symbol, new_attribute):279 original_attribute = getattr(namespace, symbol,280 self.NONEXISTENT_ATTRIBUTE)281 # You only want to save the original attribute in cases where it is282 # directly associated with the object in question. In cases where283 # the attribute is actually inherited via some sort of hierarchy284 # you want to delete the stub (restoring the original structure)285 attribute_is_inherited = (hasattr(namespace, '__dict__') and286 symbol not in namespace.__dict__)287 if attribute_is_inherited:288 original_attribute = self.NONEXISTENT_ATTRIBUTE289 newstub = (namespace, symbol, original_attribute, new_attribute)290 self._stubs.append(newstub)291 setattr(namespace, symbol, new_attribute)292 def stub_function(self, namespace, symbol):293 mock_attribute = self.create_mock_function(symbol)294 self.stub_with(namespace, symbol, mock_attribute)295 def stub_class_method(self, cls, symbol):296 mock_attribute = self.create_mock_function(symbol)297 self.stub_with(cls, symbol, staticmethod(mock_attribute))298 def stub_class(self, namespace, symbol):299 attr = getattr(namespace, symbol)300 mock_class = self.create_mock_class_obj(attr, symbol)301 self.stub_with(namespace, symbol, mock_class)302 def stub_function_to_return(self, namespace, symbol, object_to_return):303 """Stub out a function with one that always returns a fixed value.304 @param namespace The namespace containing the function to stub out.305 @param symbol The attribute within the namespace to stub out.306 @param object_to_return The value that the stub should return whenever307 it is called.308 """309 self.stub_with(namespace, symbol,310 lambda *args, **dargs: object_to_return)311 def _perform_unstub(self, stub):312 namespace, symbol, orig_attr, new_attr = stub313 if orig_attr == self.NONEXISTENT_ATTRIBUTE:314 delattr(namespace, symbol)315 else:316 setattr(namespace, symbol, orig_attr)317 def unstub(self, namespace, symbol):318 for stub in reversed(self._stubs):319 if (namespace, symbol) == (stub[0], stub[1]):320 self._perform_unstub(stub)321 self._stubs.remove(stub)322 return323 raise StubNotFoundError()324 def unstub_all(self):325 self._stubs.reverse()326 for stub in self._stubs:327 self._perform_unstub(stub)328 self._stubs = []329 def __method_playback(self, symbol, *args, **dargs):330 if self._debug:331 print >> sys.__stdout__, (' * Mock call: ' +332 _dump_function_call(symbol, args, dargs))333 if len(self.recording) != 0:334 func_call = self.recording[0]335 if func_call.symbol != symbol:336 msg = ("Unexpected call: %s\nExpected: %s"337 % (_dump_function_call(symbol, args, dargs),338 func_call))339 self._append_error(msg)340 return None341 if not func_call.match(*args, **dargs):342 msg = ("Incorrect call: %s\nExpected: %s"343 % (_dump_function_call(symbol, args, dargs),344 func_call))345 self._append_error(msg)346 return None347 # this is the expected call so pop it and return348 self.recording.popleft()349 if func_call.error:350 raise func_call.error351 else:352 return func_call.return_obj353 else:354 msg = ("unexpected call: %s"355 % (_dump_function_call(symbol, args, dargs)))356 self._append_error(msg)357 return None358 def __record_call(self, mapping):359 self.recording.append(mapping)360 def _append_error(self, error):361 if self._debug:362 print >> sys.__stdout__, ' *** ' + error363 if self._fail_fast:364 raise CheckPlaybackError(error)365 self.errors.append(error)366 def check_playback(self):367 """368 Report any errors that were encounterd during calls369 to __method_playback().370 """371 if len(self.errors) > 0:372 if self._debug:373 print '\nPlayback errors:'374 for error in self.errors:375 print >> sys.__stdout__, error376 if self._ut:377'\n'.join(self.errors))378 raise CheckPlaybackError379 elif len(self.recording) != 0:380 errors = []381 for func_call in self.recording:382 error = "%s not called" % (func_call,)383 errors.append(error)384 print >> sys.__stdout__, error385 if self._ut:386'\n'.join(errors))387 raise CheckPlaybackError388 self.recording.clear()389 def mock_io(self):390 """Mocks and saves the stdout & stderr output"""391 self.orig_stdout = sys.stdout392 self.orig_stderr = sys.stderr393 self.mock_streams_stdout = StringIO.StringIO('')394 self.mock_streams_stderr = StringIO.StringIO('')395 sys.stdout = self.mock_streams_stdout396 sys.stderr = self.mock_streams_stderr397 def unmock_io(self):398 """Restores the stdout & stderr, and returns both399 output strings"""400 sys.stdout = self.orig_stdout401 sys.stderr = self.orig_stderr402 values = (self.mock_streams_stdout.getvalue(),403 self.mock_streams_stderr.getvalue())404 self.mock_streams_stdout.close()405 self.mock_streams_stderr.close()406 return values407def _arg_to_str(arg):408 if isinstance(arg, argument_comparator):409 return str(arg)410 return repr(arg)411def _dump_function_call(symbol, args, dargs):412 arg_vec = []413 for arg in args:414 arg_vec.append(_arg_to_str(arg))415 for key, val in dargs.iteritems():416 arg_vec.append("%s=%s" % (key, _arg_to_str(val)))...

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