333 lines
11 KiB
Python
Executable File
333 lines
11 KiB
Python
Executable File
#! /usr/bin/env python
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"""Regression test.
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This will find all modules whose name is "test_*" in the test
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directory, and run them. Various command line options provide
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additional facilities.
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Command line options:
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-v: verbose -- run tests in verbose mode with output to stdout
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-q: quiet -- don't print anything except if a test fails
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-g: generate -- write the output file for a test instead of comparing it
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-x: exclude -- arguments are tests to *exclude*
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-s: single -- run only a single test (see below)
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-r: random -- randomize test execution order
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-l: findleaks -- if GC is available detect tests that leak memory
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--have-resources -- run tests that require large resources (time/space)
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If non-option arguments are present, they are names for tests to run,
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unless -x is given, in which case they are names for tests not to run.
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If no test names are given, all tests are run.
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-v is incompatible with -g and does not compare test output files.
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-s means to run only a single test and exit. This is useful when doing memory
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analysis on the Python interpreter (which tend to consume to many resources to
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run the full regression test non-stop). The file /tmp/pynexttest is read to
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find the next test to run. If this file is missing, the first test_*.py file
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in testdir or on the command line is used. (actually tempfile.gettempdir() is
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used instead of /tmp).
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"""
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import sys
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import os
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import getopt
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import traceback
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import random
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import test_support
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def main(tests=None, testdir=None, verbose=0, quiet=0, generate=0,
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exclude=0, single=0, randomize=0, findleaks=0,
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use_large_resources=0):
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"""Execute a test suite.
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This also parses command-line options and modifies its behavior
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accordingly.
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tests -- a list of strings containing test names (optional)
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testdir -- the directory in which to look for tests (optional)
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Users other than the Python test suite will certainly want to
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specify testdir; if it's omitted, the directory containing the
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Python test suite is searched for.
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If the tests argument is omitted, the tests listed on the
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command-line will be used. If that's empty, too, then all *.py
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files beginning with test_ will be used.
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The other seven default arguments (verbose, quiet, generate, exclude,
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single, randomize, and findleaks) allow programmers calling main()
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directly to set the values that would normally be set by flags on the
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command line.
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"""
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try:
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opts, args = getopt.getopt(sys.argv[1:], 'vgqxsrl', ['have-resources'])
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except getopt.error, msg:
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print msg
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print __doc__
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return 2
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for o, a in opts:
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if o == '-v': verbose = verbose+1
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if o == '-q': quiet = 1; verbose = 0
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if o == '-g': generate = 1
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if o == '-x': exclude = 1
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if o == '-s': single = 1
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if o == '-r': randomize = 1
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if o == '-l': findleaks = 1
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if o == '--have-resources': use_large_resources = 1
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if generate and verbose:
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print "-g and -v don't go together!"
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return 2
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good = []
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bad = []
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skipped = []
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if findleaks:
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try:
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import gc
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except ImportError:
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print 'No GC available, disabling findleaks.'
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findleaks = 0
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else:
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# Uncomment the line below to report garbage that is not
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# freeable by reference counting alone. By default only
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# garbage that is not collectable by the GC is reported.
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#gc.set_debug(gc.DEBUG_SAVEALL)
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found_garbage = []
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if single:
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from tempfile import gettempdir
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filename = os.path.join(gettempdir(), 'pynexttest')
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try:
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fp = open(filename, 'r')
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next = fp.read().strip()
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tests = [next]
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fp.close()
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except IOError:
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pass
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for i in range(len(args)):
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# Strip trailing ".py" from arguments
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if args[i][-3:] == '.py':
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args[i] = args[i][:-3]
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stdtests = STDTESTS[:]
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nottests = NOTTESTS[:]
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if exclude:
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for arg in args:
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if arg in stdtests:
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stdtests.remove(arg)
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nottests[:0] = args
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args = []
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tests = tests or args or findtests(testdir, stdtests, nottests)
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if single:
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tests = tests[:1]
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if randomize:
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random.shuffle(tests)
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test_support.verbose = verbose # Tell tests to be moderately quiet
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test_support.use_large_resources = use_large_resources
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save_modules = sys.modules.keys()
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for test in tests:
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if not quiet:
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print test
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ok = runtest(test, generate, verbose, quiet, testdir)
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if ok > 0:
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good.append(test)
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elif ok == 0:
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bad.append(test)
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else:
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skipped.append(test)
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if findleaks:
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gc.collect()
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if gc.garbage:
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print "Warning: test created", len(gc.garbage),
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print "uncollectable object(s)."
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# move the uncollectable objects somewhere so we don't see
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# them again
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found_garbage.extend(gc.garbage)
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del gc.garbage[:]
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# Unload the newly imported modules (best effort finalization)
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for module in sys.modules.keys():
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if module not in save_modules and module.startswith("test."):
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test_support.unload(module)
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if good and not quiet:
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if not bad and not skipped and len(good) > 1:
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print "All",
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print count(len(good), "test"), "OK."
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if verbose:
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print "CAUTION: stdout isn't compared in verbose mode: a test"
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print "that passes in verbose mode may fail without it."
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if bad:
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print count(len(bad), "test"), "failed:",
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print " ".join(bad)
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if skipped and not quiet:
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print count(len(skipped), "test"), "skipped:",
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print " ".join(skipped)
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if single:
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alltests = findtests(testdir, stdtests, nottests)
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for i in range(len(alltests)):
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if tests[0] == alltests[i]:
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if i == len(alltests) - 1:
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os.unlink(filename)
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else:
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fp = open(filename, 'w')
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fp.write(alltests[i+1] + '\n')
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fp.close()
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break
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else:
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os.unlink(filename)
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return len(bad) > 0
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STDTESTS = [
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'test_grammar',
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'test_opcodes',
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'test_operations',
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'test_builtin',
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'test_exceptions',
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'test_types',
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]
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NOTTESTS = [
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'test_support',
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'test_b1',
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'test_b2',
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]
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def findtests(testdir=None, stdtests=STDTESTS, nottests=NOTTESTS):
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"""Return a list of all applicable test modules."""
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if not testdir: testdir = findtestdir()
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names = os.listdir(testdir)
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tests = []
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for name in names:
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if name[:5] == "test_" and name[-3:] == ".py":
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modname = name[:-3]
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if modname not in stdtests and modname not in nottests:
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tests.append(modname)
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tests.sort()
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return stdtests + tests
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def runtest(test, generate, verbose, quiet, testdir = None):
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"""Run a single test.
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test -- the name of the test
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generate -- if true, generate output, instead of running the test
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and comparing it to a previously created output file
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verbose -- if true, print more messages
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quiet -- if true, don't print 'skipped' messages (probably redundant)
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testdir -- test directory
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"""
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test_support.unload(test)
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if not testdir: testdir = findtestdir()
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outputdir = os.path.join(testdir, "output")
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outputfile = os.path.join(outputdir, test)
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try:
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if generate:
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cfp = open(outputfile, "w")
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elif verbose:
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cfp = sys.stdout
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else:
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cfp = Compare(outputfile)
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except IOError:
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cfp = None
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print "Warning: can't open", outputfile
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try:
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save_stdout = sys.stdout
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try:
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if cfp:
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sys.stdout = cfp
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print test # Output file starts with test name
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__import__(test, globals(), locals(), [])
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if cfp and not (generate or verbose):
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cfp.close()
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finally:
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sys.stdout = save_stdout
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except (ImportError, test_support.TestSkipped), msg:
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if not quiet:
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print "test", test,
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print "skipped -- ", msg
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return -1
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except KeyboardInterrupt:
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raise
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except test_support.TestFailed, msg:
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print "test", test, "failed --", msg
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return 0
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except:
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type, value = sys.exc_info()[:2]
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print "test", test, "crashed --", str(type) + ":", value
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if verbose:
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traceback.print_exc(file=sys.stdout)
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return 0
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else:
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return 1
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def findtestdir():
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if __name__ == '__main__':
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file = sys.argv[0]
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else:
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file = __file__
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testdir = os.path.dirname(file) or os.curdir
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return testdir
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def count(n, word):
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if n == 1:
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return "%d %s" % (n, word)
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else:
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return "%d %ss" % (n, word)
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class Compare:
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def __init__(self, filename):
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self.fp = open(filename, 'r')
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self.stuffthatmatched = []
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def write(self, data):
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expected = self.fp.read(len(data))
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if data == expected:
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self.stuffthatmatched.append(expected)
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else:
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# This Compare instance is spoofing stdout, so we need to write
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# to stderr instead.
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from sys import stderr as e
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print >> e, "The actual stdout doesn't match the expected stdout."
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if self.stuffthatmatched:
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print >> e, "This much did match (between asterisk lines):"
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print >> e, "*" * 70
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good = "".join(self.stuffthatmatched)
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e.write(good)
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if not good.endswith("\n"):
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e.write("\n")
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print >> e, "*" * 70
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print >> e, "Then ..."
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else:
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print >> e, "The first write to stdout clashed:"
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# Note that the prompts are the same length in next two lines.
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# This is so what we expected and what we got line up.
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print >> e, "We expected (repr):", `expected`
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print >> e, "But instead we got:", `data`
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raise test_support.TestFailed('Writing: ' + `data`+
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', expected: ' + `expected`)
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def writelines(self, listoflines):
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map(self.write, listoflines)
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def flush(self):
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pass
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def close(self):
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leftover = self.fp.read()
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if leftover:
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raise test_support.TestFailed('Tail of expected stdout unseen: ' +
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`leftover`)
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self.fp.close()
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def isatty(self):
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return 0
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if __name__ == '__main__':
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sys.exit(main())
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