290 lines
13 KiB
Python
290 lines
13 KiB
Python
# ------------------------------------------------------------------------------
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# Appy is a framework for building applications in the Python language.
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# Copyright (C) 2007 Gaetan Delannay
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,USA.
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# ------------------------------------------------------------------------------
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import os, os.path, sys, time
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from optparse import OptionParser
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from appy.shared.utils import FolderDeleter, Traceback
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from appy.shared.errors import InternalError
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from appy.shared.rtf import RtfTablesParser
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from appy.shared.xml_parser import XmlComparator
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# ------------------------------------------------------------------------------
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class TesterError(Exception): pass
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# TesterError-related constants
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WRONG_TEST_PLAN = 'The test plan you specified does not correspond to an ' \
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'existing RTF file.'
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_FLAVOUR = 'A flavour represents a test configuration.'
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FLAVOURS_NOT_LIST = 'The flavours specified must be a list or tuple of ' \
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'string. ' + _FLAVOUR
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FLAVOUR_NOT_STRING = 'Each specified flavour must be a string. ' + _FLAVOUR
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WRONG_TEST_FACTORY = 'You must give a test factory that inherits from the ' \
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'abstract "appy.shared.test.TestFactory" class.'
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CREATE_TEST_NOT_OVERRIDDEN = 'The appy.shared.test.TestFactory.createTest ' \
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'method must be overridden in your concrete ' \
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'TestFactory.'
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MAIN_TABLE_NOT_FOUND = 'No table "TestSuites" found in test plan "%s".'
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MAIN_TABLE_MALFORMED = 'The "TestSuites" table must have at least two ' \
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'columns, named "Name" and "Description".'
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TEST_SUITE_NOT_FOUND = 'Table "%s.descriptions" and/or "%s.data" were not ' \
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'found.'
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TEST_SUITE_MALFORMED = 'Tables "%s.descriptions" and "%s.data" do not have ' \
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'the same length. For each test in "%s.data", You ' \
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'should have one line in "%s.descriptions" describing ' \
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'the test.'
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FILE_NOT_FOUND = 'File to compare "%s" was not found.'
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WRONG_ARGS = 'You must specify as unique argument the configuration flavour ' \
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'you want, which may be one of %s.'
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WRONG_FLAVOUR = 'Wrong flavour "%s". Flavour must be one of %s.'
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# InternalError-related constants
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TEST_REPORT_SINGLETON_ERROR = 'You can only use the TestReport constructor ' \
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'once. After that you can access the single ' \
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'TestReport instance via the TestReport.' \
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'instance static member.'
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# ------------------------------------------------------------------------------
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class TestReport:
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instance = None
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def __init__(self, testReportFileName, verbose):
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if TestReport.instance == None:
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self.report = open(testReportFileName, 'w')
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self.verbose = verbose
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TestReport.instance = self
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else:
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raise InternalError(TEST_REPORT_SINGLETON_ERROR)
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def say(self, msg, force=False, encoding=None):
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if self.verbose or force:
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print msg
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if encoding:
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self.report.write(msg.encode(encoding))
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else:
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self.report.write(msg)
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self.report.write('\n')
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def close(self):
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self.report.close()
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# ------------------------------------------------------------------------------
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class Test:
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'''Abstract test class.'''
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def __init__(self, testData, testDescription, testFolder, config, flavour):
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self.data = testData
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self.description = testDescription
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self.testFolder = testFolder
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self.tempFolder = None
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self.report = TestReport.instance
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self.errorDump = None
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self.config = config
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self.flavour = flavour
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def compareFiles(self, expected, actual, areXml=False, xmlTagsToIgnore=(),
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xmlAttrsToIgnore=(), encoding=None):
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'''Compares 2 files. r_ is True if files are different. The differences
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are written in the test report.'''
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for f in expected, actual:
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assert os.path.exists(f), TesterError(FILE_NOT_FOUND % f)
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# Expected result (may be different according to flavour)
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if self.flavour:
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expectedFlavourSpecific = '%s.%s' % (expected, self.flavour)
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if os.path.exists(expectedFlavourSpecific):
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expected = expectedFlavourSpecific
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# Perform the comparison
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comparator = XmlComparator(actual, expected, areXml, xmlTagsToIgnore,
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xmlAttrsToIgnore)
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return not comparator.filesAreIdentical(
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report=self.report, encoding=encoding)
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def run(self):
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self.report.say('-' * 79)
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self.report.say('- Test %s.' % self.data['Name'])
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self.report.say('- %s\n' % self.description)
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# Prepare test data
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self.tempFolder = os.path.join(self.testFolder, 'temp')
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if os.path.exists(self.tempFolder):
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time.sleep(0.3) # Sometimes I can't remove it, so I wait
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FolderDeleter.delete(self.tempFolder)
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os.mkdir(self.tempFolder)
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try:
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self.do()
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self.report.say('Checking result...')
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testFailed = self.checkResult()
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except:
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testFailed = self.onError()
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self.finalize()
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return testFailed
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def do(self):
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'''Concrete part of the test. Must be overridden.'''
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def checkResult(self):
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'''r_ is False if the test succeeded.'''
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return True
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def onError(self):
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'''What must happen when an exception is raised during test
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execution? Returns True if the test failed.'''
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self.errorDump = Traceback.get()
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self.report.say('Exception occurred:')
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self.report.say(self.errorDump)
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return True
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def finalize(self):
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'''Performs sme cleaning actions after test execution.'''
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pass
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def isExpectedError(self, expectedMessage):
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'''An exception was thrown. So check if the actual error message
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(stored in self.errorDump) corresponds to the p_expectedMessage.'''
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res = True
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for line in expectedMessage:
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if (self.errorDump.find(line) == -1):
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res = False
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self.report.say('"%s" not found among error dump.' % line)
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break
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return res
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# ------------------------------------------------------------------------------
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class TestFactory:
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def createTest(testData, testDescription, testFolder, config, flavour):
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'''This method allows you to create tests that are instances of classes
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that you create. Those classes must be children of
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appy.shared.test.Test. m_createTest must return a Test instance and
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is called every time a test definition is encountered in the test
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plan.'''
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raise TesterError(CREATE_TEST_NOT_OVERRIDDEN)
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createTest = staticmethod(createTest)
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# ------------------------------------------------------------------------------
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class Tester:
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def __init__(self, testPlan, flavours, testFactory):
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# Check test plan
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if (not os.path.exists(testPlan)) or (not os.path.isfile(testPlan)) \
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or (not testPlan.endswith('.rtf')):
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raise TesterError(WRONG_TEST_PLAN)
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self.testPlan = testPlan
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self.testFolder = os.path.abspath(os.path.dirname(testPlan))
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# Check flavours
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if (not isinstance(flavours, list)) and \
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(not isinstance(flavours, tuple)):
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raise TesterError(FLAVOURS_NOT_LIST)
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for flavour in flavours:
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if not isinstance(flavour, basestring):
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raise TesterError(FLAVOUR_NOT_STRING)
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self.flavours = flavours
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self.flavour = None
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# Check test factory
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if not issubclass(testFactory, TestFactory):
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raise TesterError(WRONG_TEST_FACTORY)
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self.testFactory = testFactory
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self.getOptions()
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self.report = TestReport('%s/Tester.report.txt' % self.testFolder,
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self.verbose)
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self.report.say('Parsing RTF file... ')
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t1 = time.time()
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self.tables = RtfTablesParser(testPlan).parse()
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t2 = time.time() - t1
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self.report.say('Done in %d seconds' % t2)
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self.config = None
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ext = ''
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if self.flavour:
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ext = '.%s' % self.flavour
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configTableName = 'Configuration%s' % ext
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if self.tables.has_key(configTableName):
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self.config = self.tables[configTableName].asDict()
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self.tempFolder = os.path.join(self.testFolder, 'temp')
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if os.path.exists(self.tempFolder):
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FolderDeleter.delete(self.tempFolder)
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self.nbOfTests = 0
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self.nbOfSuccesses = 0
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self.nbOfIgnoredTests = 0
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def getOptions(self):
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optParser = OptionParser()
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optParser.add_option("-v", "--verbose", action="store_true",
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help="Dumps the whole test report on stdout")
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optParser.add_option("-k", "--keepTemp", action="store_true", help = \
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"Keep the temp folder, in order to be able to " \
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"copy some results and make them expected " \
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"results when needed.")
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(options, args) = optParser.parse_args()
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if self.flavours:
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if len(args) != 1:
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raise TesterError(WRONG_ARGS % self.flavours)
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self.flavour = args[0]
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if not self.flavour in self.flavours:
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raise TesterError(WRONG_FLAVOUR % (self.flavour, self.flavours))
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self.verbose = options.verbose == True
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self.keepTemp = options.keepTemp == True
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def runSuite(self, suite):
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self.report.say('*' * 79)
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self.report.say('* Suite %s.' % suite['Name'])
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self.report.say('* %s\n' % suite['Description'])
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i = -1
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for testData in self.tables['%s.data' % suite['Name']]:
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self.nbOfTests += 1
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i += 1
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if testData['Name'].startswith('_'):
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self.nbOfIgnoredTests += 1
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else:
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description = self.tables['%s.descriptions' % \
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suite['Name']][i]['Description']
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test = self.testFactory.createTest(
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testData, description, self.testFolder, self.config,
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self.flavour)
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testFailed = test.run()
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if not self.verbose:
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sys.stdout.write('.')
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sys.stdout.flush()
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if testFailed:
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self.report.say('Test failed.\n')
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else:
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self.report.say('Test successful.\n')
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self.nbOfSuccesses += 1
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def run(self):
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assert self.tables.has_key('TestSuites'), \
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TesterError(MAIN_TABLE_NOT_FOUND % self.testPlan)
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for testSuite in self.tables['TestSuites']:
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if (not testSuite.has_key('Name')) or \
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(not testSuite.has_key('Description')):
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raise TesterError(MAIN_TABLE_MALFORMED)
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if testSuite['Name'].startswith('_'):
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tsName = testSuite['Name'][1:]
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tsIgnored = True
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else:
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tsName = testSuite['Name']
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tsIgnored = False
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assert self.tables.has_key('%s.descriptions' % tsName) \
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and self.tables.has_key('%s.data' % tsName), \
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TesterError(TEST_SUITE_NOT_FOUND % (tsName, tsName))
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assert len(self.tables['%s.descriptions' % tsName]) == \
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len(self.tables['%s.data' % tsName]), \
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TesterError(TEST_SUITE_MALFORMED % ((tsName,)*4))
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if tsIgnored:
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nbOfIgnoredTests = len(self.tables['%s.data' % tsName])
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self.nbOfIgnoredTests += nbOfIgnoredTests
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self.nbOfTests += nbOfIgnoredTests
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else:
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self.runSuite(testSuite)
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self.finalize()
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def finalize(self):
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msg = '%d/%d successful test(s)' % \
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(self.nbOfSuccesses, (self.nbOfTests-self.nbOfIgnoredTests))
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if self.nbOfIgnoredTests >0:
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msg += ', but %d ignored test(s) not counted' % \
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self.nbOfIgnoredTests
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msg += '.'
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self.report.say(msg, force=True)
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self.report.close()
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if not self.keepTemp:
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if os.path.exists(self.tempFolder):
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FolderDeleter.delete(self.tempFolder)
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# ------------------------------------------------------------------------------
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