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148 lines
3.8 KiB
Python
148 lines
3.8 KiB
Python
"""Supporting definitions for the Python regression test."""
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import sys
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class Error(Exception):
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"""Base class for regression test exceptions."""
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class TestFailed(Error):
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"""Test failed."""
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class TestSkipped(Error):
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"""Test skipped.
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This can be raised to indicate that a test was deliberatly
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skipped, but not because a feature wasn't available. For
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example, if some resource can't be used, such as the network
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appears to be unavailable, this should be raised instead of
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TestFailed.
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"""
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verbose = 1 # Flag set to 0 by regrtest.py
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use_large_resources = 1 # Flag set to 0 by regrtest.py
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def unload(name):
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try:
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del sys.modules[name]
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except KeyError:
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pass
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def forget(modname):
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unload(modname)
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import os
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for dirname in sys.path:
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try:
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os.unlink(os.path.join(dirname, modname + '.pyc'))
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except os.error:
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pass
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FUZZ = 1e-6
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def fcmp(x, y): # fuzzy comparison function
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if type(x) == type(0.0) or type(y) == type(0.0):
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try:
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x, y = coerce(x, y)
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fuzz = (abs(x) + abs(y)) * FUZZ
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if abs(x-y) <= fuzz:
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return 0
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except:
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pass
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elif type(x) == type(y) and type(x) in (type(()), type([])):
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for i in range(min(len(x), len(y))):
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outcome = fcmp(x[i], y[i])
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if outcome != 0:
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return outcome
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return cmp(len(x), len(y))
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return cmp(x, y)
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import os
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# Filename used for testing
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if os.name == 'java':
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# Jython disallows @ in module names
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TESTFN = '$test'
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elif os.name != 'riscos':
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TESTFN = '@test'
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# Unicode name only used if TEST_FN_ENCODING exists for the platform.
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TESTFN_UNICODE=u"@test-\xe0\xf2" # 2 latin characters.
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if os.name=="nt":
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TESTFN_ENCODING="mbcs"
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else:
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TESTFN = 'test'
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del os
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from os import unlink
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def findfile(file, here=__file__):
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import os
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if os.path.isabs(file):
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return file
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path = sys.path
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path = [os.path.dirname(here)] + path
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for dn in path:
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fn = os.path.join(dn, file)
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if os.path.exists(fn): return fn
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return file
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def verify(condition, reason='test failed'):
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"""Verify that condition is true. If not, raise TestFailed.
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The optional argument reason can be given to provide
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a better error text.
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"""
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if not condition:
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raise TestFailed(reason)
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def sortdict(dict):
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"Like repr(dict), but in sorted order."
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items = dict.items()
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items.sort()
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reprpairs = ["%r: %r" % pair for pair in items]
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withcommas = ", ".join(reprpairs)
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return "{%s}" % withcommas
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def check_syntax(statement):
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try:
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compile(statement, '<string>', 'exec')
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except SyntaxError:
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pass
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else:
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print 'Missing SyntaxError: "%s"' % statement
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#=======================================================================
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# Preliminary PyUNIT integration.
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import unittest
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class BasicTestRunner:
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def run(self, test):
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result = unittest.TestResult()
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test(result)
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return result
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def run_unittest(testclass):
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"""Run tests from a unittest.TestCase-derived class."""
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if verbose:
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runner = unittest.TextTestRunner(sys.stdout, verbosity=2)
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else:
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runner = BasicTestRunner()
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suite = unittest.makeSuite(testclass)
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result = runner.run(suite)
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if not result.wasSuccessful():
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if len(result.errors) == 1 and not result.failures:
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err = result.errors[0][1]
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elif len(result.failures) == 1 and not result.errors:
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err = result.failures[0][1]
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else:
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raise TestFailed("errors occurred in %s.%s"
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% (testclass.__module__, testclass.__name__))
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if err[0] is AssertionError:
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raise TestFailed(str(err[1]))
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else:
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raise TestFailed("%s: %s" % err[:2])
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