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#! /usr/bin/env python
"""Regression test.
This will find all modules whose name is "test_*" in the test
directory, and run them. Various command line options provide
additional facilities.
Command line options:
-v: verbose -- run tests in verbose mode with output to stdout
-q: quiet -- don't print anything except if a test fails
-g: generate -- write the output file for a test instead of comparing it
-x: exclude -- arguments are tests to *exclude*
If non-option arguments are present, they are names for tests to run,
unless -x is given, in which case they are names for tests not to run.
If no test names are given, all tests are run.
-v is incompatible with -g and does not compare test output files.
"""
import sys
import string
import os
import getopt
import traceback
import test_support
def main(tests=None, testdir=None):
"""Execute a test suite.
This also parses command-line options and modifies its behaviour
accordingly.
tests -- a list of strings containing test names (optional)
testdir -- the directory in which to look for tests (optional)
Users other than the Python test suite will certainly want to
specify testdir; if it's omitted, the directory containing the
Python test suite is searched for.
If the tests argument is omitted, the tests listed on the
command-line will be used. If that's empty, too, then all *.py
files beginning with test_ will be used.
"""
try:
opts, args = getopt.getopt(sys.argv[1:], 'vgqx')
except getopt.error, msg:
print msg
print __doc__
return 2
verbose = 0
quiet = 0
generate = 0
exclude = 0
for o, a in opts:
if o == '-v': verbose = verbose+1
if o == '-q': quiet = 1; verbose = 0
if o == '-g': generate = 1
if o == '-x': exclude = 1
if generate and verbose:
print "-g and -v don't go together!"
return 2
good = []
bad = []
skipped = []
for i in range(len(args)):
# Strip trailing ".py" from arguments
if args[i][-3:] == '.py':
args[i] = args[i][:-3]
stdtests = STDTESTS
nottests = NOTTESTS
if exclude:
nottests = args
args = []
tests = tests or args or findtests(testdir, stdtests, nottests)
test_support.verbose = verbose # Tell tests to be moderately quiet
for test in tests:
if not quiet:
print test
ok = runtest(test, generate, verbose, testdir)
if ok > 0:
good.append(test)
elif ok == 0:
bad.append(test)
else:
if not quiet:
print "test", test,
print "skipped -- an optional feature could not be imported"
skipped.append(test)
if good and not quiet:
if not bad and not skipped and len(good) > 1:
print "All",
print count(len(good), "test"), "OK."
if bad:
print count(len(bad), "test"), "failed:",
print string.join(bad)
if skipped and not quiet:
print count(len(skipped), "test"), "skipped:",
print string.join(skipped)
return len(bad) > 0
STDTESTS = [
'test_grammar',
'test_opcodes',
'test_operations',
'test_builtin',
'test_exceptions',
'test_types',
]
NOTTESTS = [
'test_support',
'test_b1',
'test_b2',
]
def findtests(testdir=None, stdtests=STDTESTS, nottests=NOTTESTS):
"""Return a list of all applicable test modules."""
if not testdir: testdir = findtestdir()
names = os.listdir(testdir)
tests = []
for name in names:
if name[:5] == "test_" and name[-3:] == ".py":
modname = name[:-3]
if modname not in stdtests and modname not in nottests:
tests.append(modname)
tests.sort()
return stdtests + tests
def runtest(test, generate, verbose, testdir = None):
"""Run a single test.
test -- the name of the test
generate -- if true, generate output, instead of running the test
and comparing it to a previously created output file
verbose -- if true, print more messages
testdir -- test directory
"""
test_support.unload(test)
if not testdir: testdir = findtestdir()
outputdir = os.path.join(testdir, "output")
outputfile = os.path.join(outputdir, test)
try:
if generate:
cfp = open(outputfile, "w")
elif verbose:
cfp = sys.stdout
else:
cfp = Compare(outputfile)
except IOError:
cfp = None
print "Warning: can't open", outputfile
try:
save_stdout = sys.stdout
try:
if cfp:
sys.stdout = cfp
print test # Output file starts with test name
__import__(test, globals(), locals(), [])
finally:
sys.stdout = save_stdout
except ImportError, msg:
return -1
except KeyboardInterrupt, v:
raise KeyboardInterrupt, v, sys.exc_info()[2]
except test_support.TestFailed, msg:
print "test", test, "failed --", msg
return 0
except:
type, value = sys.exc_info()[:2]
print "test", test, "crashed --", type, ":", value
if verbose:
traceback.print_exc(file=sys.stdout)
return 0
else:
return 1
def findtestdir():
if __name__ == '__main__':
file = sys.argv[0]
else:
file = __file__
testdir = os.path.dirname(file) or os.curdir
return testdir
def count(n, word):
if n == 1:
return "%d %s" % (n, word)
else:
return "%d %ss" % (n, word)
class Compare:
def __init__(self, filename):
self.fp = open(filename, 'r')
def write(self, data):
expected = self.fp.read(len(data))
if data <> expected:
raise test_support.TestFailed, \
'Writing: '+`data`+', expected: '+`expected`
def writelines(self, listoflines):
map(self.write, listoflines)
def flush(self):
pass
def close(self):
leftover = self.fp.read()
if leftover:
raise test_support.TestFailed, 'Unread: '+`leftover`
self.fp.close()
def isatty(self):
return 0
if __name__ == '__main__':
sys.exit(main())
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