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# Copyright (c) 2002, 2003 by Intevation GmbH |
# Copyright (c) 2002, 2003, 2004 by Intevation GmbH |
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# Authors: |
# Authors: |
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# Bernhard Herzog <[email protected]> |
# Bernhard Herzog <[email protected]> |
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# |
# |
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import os, sys |
import os, sys |
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import unittest |
import unittest |
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import traceback |
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import postgissupport |
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def thuban_dir(): |
def thuban_dir(): |
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"""Return the directory containing the Thuban package""" |
"""Return the directory containing the Thuban package""" |
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thisdir = os.path.dirname(__file__) |
thisdir = os.path.dirname(__file__) |
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return os.path.join(thisdir, os.pardir) |
return os.path.join(thisdir, os.pardir) |
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def resource_dir(): |
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return os.path.join(thuban_dir(), "Resources") |
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def add_thuban_dir_to_path(): |
def add_thuban_dir_to_path(): |
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"""Insert the Thuban directory at the beginning of the python path. |
"""Insert the Thuban directory at the beginning of the python path. |
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""" |
""" |
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global _initthuban_done |
global _initthuban_done |
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if not _initthuban_done: |
if not _initthuban_done: |
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# Thuban uses gettext to translate some strings. Some of these |
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# strings are tested for equality in some test cases. So we |
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# unset any LANG environment setting to make sure only the |
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# untranslated messages are used. |
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try: |
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del os.environ["LANG"] |
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except KeyError: |
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pass |
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add_thuban_dir_to_path() |
add_thuban_dir_to_path() |
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import thubaninit |
import thubaninit |
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# Install a dummy translation function so that importing |
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# Thuban.UI doesn't install a wx specific one for which would |
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# need to import wxPython |
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import Thuban |
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Thuban.install_translation_function(lambda s: s) |
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_initthuban_done = 1 |
_initthuban_done = 1 |
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def run_tests(): |
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"""Frontend for unittest.main that prints some additional debug information |
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After calling unittest.main, run the garbage collector and print |
# |
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uncollected objects. Also print any un-unsubscribed messages. |
# Special test runner and result that support skipping tests |
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# |
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class SkipTest(Exception): |
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"""Exception to raise in tests that are skipped for some reason |
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For instance, since gdal support is optional, test cases that |
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require gdal raise this exception to indicate that they are skipped. |
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Skipped is different from failure or error in that it is expected |
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under certain circumstances. |
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""" |
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class ThubanTestResult(unittest._TextTestResult): |
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def __init__(self, stream, descriptions, verbosity): |
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unittest._TextTestResult.__init__(self, stream, descriptions, |
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verbosity) |
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self.skipped_tests = {} |
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def add_skipped_test(self, test, exc): |
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reason = str(exc) |
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self.skipped_tests.setdefault(reason, []).append(test) |
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def count_skipped(self): |
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sum = 0 |
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for tests in self.skipped_tests.values(): |
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sum += len(tests) |
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return sum |
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def addError(self, test, err): |
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"""Extend inherited method to handle SkipTest exceptions specially |
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""" |
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#print "addError", test, err |
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if isinstance(err[1], SkipTest): |
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self.add_skipped_test(test, err[1]) |
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if self.showAll: |
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self.stream.writeln("skipped") |
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elif self.dots: |
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self.stream.write('S') |
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else: |
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unittest._TextTestResult.addError(self, test, err) |
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def printErrors(self): |
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if self.skipped_tests: |
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if self.dots or self.showAll: |
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self.stream.writeln() |
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self.stream.writeln("Skipped tests:") |
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for reason, tests in self.skipped_tests.items(): |
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self.stream.writeln(" %s:" % reason) |
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for test in tests: |
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self.stream.writeln(" " + test.id()) |
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unittest._TextTestResult.printErrors(self) |
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def getDescription(self, test): |
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return test.id() |
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class ThubanTestRunner(unittest.TextTestRunner): |
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def _makeResult(self): |
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return ThubanTestResult(self.stream, self.descriptions, self.verbosity) |
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def run(self, test): |
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result = unittest.TextTestRunner.run(self, test) |
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self.stream.writeln("skipped = %d" % result.count_skipped()) |
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return result |
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class ThubanTestProgram(unittest.TestProgram): |
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def runTests(self): |
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"""Extend inherited method so that we use a ThubanTestRunner""" |
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self.testRunner = ThubanTestRunner(verbosity = self.verbosity) |
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unittest.TestProgram.runTests(self) |
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def execute_as_testsuite(callable, *args, **kw): |
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"""Call callable with args as if it were the entry point to the test suite |
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Return watever callable returns. |
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This is a helper function for run_tests and runtests.py. Call |
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callable in a try-finally block and run some cleanup and print some |
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additional information in the finally block. |
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The additionaly information include: |
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- A list of uncollected objects (after an explicit garbage |
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collector call) |
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- any unsubscribed messages |
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""" |
""" |
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try: |
try: |
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unittest.main() |
return callable(*args, **kw) |
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finally: |
finally: |
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# This has to be in a finally clause because unittest.main() |
# This has to be in a finally clause because unittest.main() |
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# ends with a sys.exit to make sure that the process exits with |
# ends with a sys.exit to make sure that the process exits with |
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# an appropriate exit code |
# an appropriate exit code |
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print_garbage_information() |
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# Shutdown the postgis server if it's running |
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try: |
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postgissupport.shutdown_test_server() |
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except: |
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traceback.print_exc() |
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# Print additional information |
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print_additional_summary() |
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def run_tests(): |
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"""Frontend for unittest.main that prints some additional debug information |
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After calling unittest.main, run the garbage collector and print |
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uncollected objects. Also print any un-unsubscribed messages. |
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""" |
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execute_as_testsuite(ThubanTestProgram) |
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def print_additional_summary(): |
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"""Print some additional summary information after tests have been run""" |
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print_garbage_information() |
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import xmlsupport |
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xmlsupport.print_summary_message() |
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def print_garbage_information(): |
def print_garbage_information(): |
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"""Print information about things that haven't been cleaned up. |
"""Print information about things that haven't been cleaned up. |
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Run the garbage collector and print uncollected objects. Also print |
Run the garbage collector and print uncollected objects. Also print |
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any un-unsubscribed messages. |
any un-unsubscribed messages. |
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""" |
""" |
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# this function may be called indirectly from test cases that test |
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# test support modules which do not use anything from thuban itself, |
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# so we call initthuban so that we can import the connector module |
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initthuban() |
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import gc, Thuban.Lib.connector |
import gc, Thuban.Lib.connector |
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gc.collect() |
gc.collect() |
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if gc.garbage: |
if gc.garbage: |
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print gc.garbage |
print gc.garbage |
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Thuban.Lib.connector._the_connector.print_connections() |
Thuban.Lib.connector._the_connector.print_connections() |
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# |
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def create_temp_dir(): |
def create_temp_dir(): |
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"""Create a temporary directory and return its name. |
"""Create a temporary directory and return its name. |
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return create_temp_dir() |
return create_temp_dir() |
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class FileLoadTestCase(unittest.TestCase, FileTestMixin): |
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"""Base class for test case that test loading files. |
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This base class provides some common infrastructure for testing the |
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reading of files. |
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Each test case should be its own class derived from this one. There |
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is one file associated with each class. The contents are defined by |
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the file_contents class attribute and its name by the filename |
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method. |
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Derived classes usually only have to provide appropriate values for |
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the file_contents and file_extension class attributes. |
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""" |
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file_contents = None |
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file_extension = "" |
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def filename(self): |
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"""Return the name of the test file to use. |
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The default implementation simply calls self.temp_file_name with |
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a basename derived from the class name by stripping off a |
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leading 'test_' and appending self.file_extension. |
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""" |
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name = self.__class__.__name__ |
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if name.startswith("test_"): |
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name = name[5:] |
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return self.temp_file_name(name + self.file_extension) |
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def setUp(self): |
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"""Create the volatile file for the test. |
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Write self.contents (which should be a string) to the file named |
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by self.filename(). |
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""" |
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filename = self.filename() |
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file = open(filename, "w") |
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file.write(self.file_contents) |
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file.close() |
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class FloatComparisonMixin: |
class FloatComparisonMixin: |
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""" |
""" |
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""" |
""" |
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fp_epsilon = 1e-6 |
fp_epsilon = 1e-6 |
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fp_inf = float('1e1000') # FIXME: hack for infinite |
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def assertFloatEqual(self, test, value): |
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def assertFloatEqual(self, test, value, epsilon = None): |
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"""Assert equality of test and value with some tolerance. |
"""Assert equality of test and value with some tolerance. |
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Assert that the absolute difference between test and value is |
Assert that the absolute difference between test and value is |
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less than self.fp_epsilon. |
less than self.fp_epsilon. |
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""" |
""" |
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self.assert_(self.fp_epsilon > abs(test - value), |
if epsilon is None: |
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"abs(%g - %g) >= %g" % (test, value, self.fp_epsilon)) |
epsilon = self.fp_epsilon |
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if abs(test) == self.fp_inf: |
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self.assertEqual(test, value) |
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else: |
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self.assert_(epsilon > abs(test - value), |
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"abs(%g - %g) >= %g" % (test, value, epsilon)) |
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def assertFloatSeqEqual(self, test, value, epsilon = None): |
def assertFloatSeqEqual(self, test, value, epsilon = None): |
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"""Assert equality of the sequences test and value with some tolerance. |
"""Assert equality of the sequences test and value with some tolerance. |
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value in test and value is less than the optional parameter |
value in test and value is less than the optional parameter |
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epsilon. If epsilon is not given use self.fp_epsilon. |
epsilon. If epsilon is not given use self.fp_epsilon. |
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""" |
""" |
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if epsilon is None: |
self.assertEquals(len(test), len(value)) |
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epsilon = self.fp_epsilon |
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for i in range(len(test)): |
for i in range(len(test)): |
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self.assert_(epsilon > abs(test[i] - value[i]), |
self.assertFloatEqual(test[i], value[i], epsilon) |
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"abs(%g - %g) >= %g" % (test[i], value[i], epsilon)) |
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def assertPointListEquals(self, test, value): |
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"""Assert equality of two lists of lists of tuples of float |
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This assertion is usually used to compare the geometry of shapes |
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as returned by a Shape object's Points() method, hence the name. |
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""" |
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for i in range(len(test)): |
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self.assertEquals(len(test[i]), len(value[i])) |
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for j in range(len(test[i])): |
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self.assertFloatSeqEqual(test[i][j], value[i][j]) |
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class SubscriberMixin: |
class SubscriberMixin: |
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def check_messages(self, messages): |
def check_messages(self, messages): |
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"""Check whether the messages received match the list messages""" |
"""Check whether the messages received match the list messages""" |
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self.assertEquals(messages, self.received_messages) |
self.assertEquals(messages, self.received_messages) |
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