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exceptions.py
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# Copyright 2008-2015 Nokia Networks
# Copyright 2016- Robot Framework Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Exceptions that libraries can use for communicating failures and other events.
These exceptions can be imported also via the top level :mod:`robot.api` package like
``from robot.api import SkipExecution``.
This module and all exceptions are new in Robot Framework 4.0.
"""
class Failure(AssertionError):
"""Report failed validation.
There is no practical difference in using this exception compared to using
the standard ``AssertionError``. The main benefits are HTML support and that
the name of this exception is consistent with other exceptions in this module.
"""
ROBOT_SUPPRESS_NAME = True
def __init__(self, message, html=False):
"""
:param message: Exception message.
:param html: When ``True``, message is considered to be HTML and not escaped.
"""
AssertionError.__init__(self, message if not html else '*HTML* ' + message)
class ContinuableFailure(Failure):
"""Report failed validation but allow continuing execution."""
ROBOT_CONTINUE_ON_FAILURE = True
class Error(RuntimeError):
"""Report error in execution.
Failures related to the system not behaving as expected should typically be
reported using the :class:`Failure` exception or the standard ``AssertionError``.
This exception can be used, for example, if the keyword is used incorrectly.
There is no practical difference in using this exception compared to using
the standard ``RuntimeError``. The main benefits are HTML support and that
the name of this exception is consistent with other exceptions in this module.
"""
ROBOT_SUPPRESS_NAME = True
def __init__(self, message, html=False):
"""
:param message: Exception message.
:param html: When ``True``, message is considered to be HTML and not escaped.
"""
RuntimeError.__init__(self, message if not html else '*HTML* ' + message)
class FatalError(Error):
"""Report error that stops the whole execution."""
ROBOT_EXIT_ON_FAILURE = True
ROBOT_SUPPRESS_NAME = False
class SkipExecution(Exception):
"""Mark the executed test or task skipped."""
ROBOT_SKIP_EXECUTION = True
ROBOT_SUPPRESS_NAME = True
def __init__(self, message, html=False):
"""
:param message: Exception message.
:param html: When ``True``, message is considered to be HTML and not escaped.
"""
Exception.__init__(self, message if not html else '*HTML* ' + message)