Source code for sardana.test.test_sardanavalue

#!/usr/bin/env python

##############################################################################
##
## This file is part of Sardana
##
## http://www.tango-controls.org/static/sardana/latest/doc/html/index.html
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## Copyright 2011 CELLS / ALBA Synchrotron, Bellaterra, Spain
##
## Sardana is free software: you can redistribute it and/or modify
## it under the terms of the GNU Lesser General Public License as published by
## the Free Software Foundation, either version 3 of the License, or
## (at your option) any later version.
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## Sardana is distributed in the hope that it will be useful,
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
## GNU Lesser General Public License for more details.
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## You should have received a copy of the GNU Lesser General Public License
## along with Sardana.  If not, see <http://www.gnu.org/licenses/>.
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##############################################################################

"""Unit tests for sardanavalue module"""

from taurus.external import unittest
from sardana.sardanavalue import SardanaValue


[docs]class SardanaValueTestCase(unittest.TestCase): """Instantiating in different ways a Sardana Value and perform some verifications. """
[docs] def testInstanceCreation(self): """ Instantiate in different ways a SardanaValue object. """ sar_val = SardanaValue() self.assertIsInstance(sar_val, SardanaValue, 'Instantiation of an ' + 'object SardanaValue without arguments does not work') sar_val1 = SardanaValue(value=9) self.assertIsInstance(sar_val1, SardanaValue, 'Instantiation of an ' + 'object SardanaValue with the value argument does not work') sar_val2 = SardanaValue(value=8, exc_info=None, timestamp='09:30', dtype='int', dformat='int') self.assertIsInstance(sar_val2, SardanaValue, 'Instantiation of an ' + 'object SardanaValue with arguments and exc_info equal None, ' + 'does not work.') sar_val3 = SardanaValue(value=7, exc_info='exception_info', timestamp='09:30', dtype='int', dformat='int') self.assertIsInstance(sar_val3, SardanaValue, 'Instantiation of an ' + 'object SardanaValue with arguments and exc_info ' + 'different of None, does not work.')
[docs] def testSardanaValueWithExceptionInfo(self): """Verify the creation of SardanaValue when exc_info != None. Verify that 'Error' is contained in the returned string. """ val = 4 sar_val = SardanaValue(value=val, exc_info='exception_info') representation = repr(sar_val) self.assertEqual(sar_val.error, True, 'The error attribute should be True.') self.assertRegexpMatches(representation, ".*<Error>.*", 'The SardanaValue representation does not contain <Error>.')
[docs] def testSardanaValueWithNoExceptionInfo(self): """Verify the creation of SardanaValue when exc_info is not specified and we give a value as argument of the SardanaValue constructor. SardanaValue representation shall contain its value. """ value = 5 sar_val = SardanaValue(value=value) returned_string = sar_val.__repr__() self.assertRegexpMatches(returned_string, repr(value), 'The SardanaValue representation does not contain its value') self.assertEqual(sar_val.error, False, 'The error attribute should be False')