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