How to use _check_valid_data_source method in avocado

Best Python code snippet using avocado_python

test.py

Source:test.py Github

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...101 suffix (:data:`SUFFIX`) that has to be accounted for.102 """103 max_length = utils_path.get_max_file_name_length(self.filename)104 return max_length - len(self.SUFFIX)105 def _check_valid_data_source(self, source):106 """107 Utility to check if user chose a specific data source108 :param source: either None for no specific selection or a source name109 :type source: None or str110 :raises: ValueError111 """112 if source is not None and source not in self.DATA_SOURCES:113 msg = "Data file source requested (%s) is not one of: %s"114 msg %= (source, ", ".join(self.DATA_SOURCES))115 raise ValueError(msg)116 def _get_datadir(self, source):117 path_components = self._data_sources_mapping.get(source)118 if path_components is None:119 return120 # evaluate lazily, needed when the class changes its own121 # information such as its datadir122 path_components = [func() for func in path_components]123 if None in path_components:124 return125 # if path components are absolute paths, let's believe that126 # they have already been treated (such as the entries that127 # return the self.datadir). If not, let's split the path128 # components so that they can be treated in the next loop129 split_path_components = []130 for path_component in path_components:131 if not os.path.isabs(path_component):132 split_path_components += path_component.split(os.path.sep)133 else:134 split_path_components.append(path_component)135 # now, make sure each individual path component can be represented136 # in the filesystem. again, if it's an absolute path, do nothing137 paths = []138 for path in split_path_components:139 if os.path.isabs(path):140 paths.append(path)141 else:142 paths.append(astring.string_to_safe_path(path))143 return os.path.join(*paths)144 def get_data(self, filename, source=None, must_exist=True):145 """146 Retrieves the path to a given data file.147 This implementation looks for data file in one of the sources148 defined by the :attr:`DATA_SOURCES` attribute.149 :param filename: the name of the data file to be retrieved150 :type filename: str151 :param source: one of the defined data sources. If not set,152 all of the :attr:`DATA_SOURCES` will be attempted153 in the order they are defined154 :type source: str155 :param must_exist: whether the existence of a file is checked for156 :type must_exist: bool157 :rtype: str or None158 """159 log_fmt = "DATA (filename=%s) => %s (%s)"160 if source is None:161 sources = self.DATA_SOURCES162 else:163 self._check_valid_data_source(source)164 sources = [source]165 for attempt_source in sources:166 datadir = self._get_datadir(attempt_source)167 if datadir is not None:168 # avoid returning a slash after the data directory name169 # when a file was not requested (thus return the data170 # directory itself)171 if not filename:172 path = datadir173 else:174 path = os.path.join(datadir, filename)175 if not must_exist:176 self.log.debug(177 log_fmt,...

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