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-rw-r--r--tools/teststepstools.py90
1 files changed, 90 insertions, 0 deletions
diff --git a/tools/teststepstools.py b/tools/teststepstools.py
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+# Copyright 2016 Intel Corporation.
+#
+# 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.
+
+"""Various helper functions for step driven testcases
+"""
+
+import re
+import logging
+import subprocess
+import locale
+
+class TestStepsTools(object):
+ """ Various tools and functions used by step driven testcases
+ """
+ # Functions use nonstandard names to avoid conflicts with
+ # standard python keywords.
+ # pylint: disable=invalid-name
+ def __init__(self):
+ """ TestStepsTools initialization
+ """
+ self._logger = logging.getLogger(__name__)
+
+ def Assert(self, condition):
+ """ Evaluate given `condition' and raise AssertionError
+ in case, that evaluation fails
+ """
+ try:
+ assert self.Eval(condition)
+ except AssertionError:
+ self._logger.error('Condition %s is not True', condition)
+ raise
+
+ return True
+
+ @staticmethod
+ def validate_Assert(result, dummy_condition):
+ """ Validate evaluation of given `condition'
+ """
+ return result
+
+ @staticmethod
+ def Eval(expression):
+ """ Evaluate python `expression' and return its result
+ """
+ # pylint: disable=eval-used
+ return eval(expression)
+
+ @staticmethod
+ def validate_Eval(result, dummy_expression):
+ """ Validate result of python `expression' evaluation
+ """
+ return result is not None
+
+ @staticmethod
+ def Exec(command, regex=None):
+ """ Execute a shell `command' and return its output filtered
+ out by optional `regex' expression.
+ """
+ try:
+ output = subprocess.check_output(command, shell=True)
+ except OSError:
+ return None
+
+ output = output.decode(locale.getdefaultlocale()[1])
+
+ if regex:
+ for line in output.split('\n'):
+ result = re.findall(regex, line)
+ if result:
+ return result
+ return []
+
+ return output
+
+ @staticmethod
+ def validate_Exec(result, dummy_command, dummy_regex=None):
+ """ validate result of shell `command' execution
+ """
+ return result is not None