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# Copyright 2012 the V8 project authors. All rights reserved.
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import fnmatch
import imp
import os
from . import command
from . import statusfile
from . import utils
from ..objects.testcase import TestCase
from variants import ALL_VARIANTS, ALL_VARIANT_FLAGS
STANDARD_VARIANT = set(["default"])
class LegacyVariantsGenerator(object):
def __init__(self, suite, variants):
self.suite = suite
self.all_variants = variants
self.standard_variant = STANDARD_VARIANT & variants
def FilterVariantsByTest(self, test):
if test.only_standard_variant:
return self.standard_variant
return self.all_variants
def GetFlagSets(self, test, variant):
return ALL_VARIANT_FLAGS[variant]
class StandardLegacyVariantsGenerator(LegacyVariantsGenerator):
def FilterVariantsByTest(self, testcase):
return self.standard_variant
class VariantsGenerator(object):
def __init__(self, variants):
self._all_variants = [v for v in variants if v in ALL_VARIANTS]
self._standard_variant = [v for v in variants if v in STANDARD_VARIANT]
def gen(self, test):
"""Generator producing (variant, flags, procid suffix) tuples."""
flags_set = self._get_flags_set(test)
for n, variant in enumerate(self._get_variants(test)):
yield (variant, flags_set[variant][0], n)
def _get_flags_set(self, test):
return ALL_VARIANT_FLAGS
def _get_variants(self, test):
if test.only_standard_variant:
return self._standard_variant
return self._all_variants
class TestCombiner(object):
def get_group_key(self, test):
"""To indicate what tests can be combined with each other we define a group
key for each test. Tests with the same group key can be combined. Test
without a group key (None) is not combinable with any other test.
"""
raise NotImplementedError()
def combine(self, name, tests):
"""Returns test combined from `tests`. Since we identify tests by their
suite and name, `name` parameter should be unique within one suite.
"""
return self._combined_test_class()(name, tests)
def _combined_test_class(self):
raise NotImplementedError()
class TestSuite(object):
@staticmethod
def LoadTestSuite(root, test_config):
name = root.split(os.path.sep)[-1]
f = None
try:
(f, pathname, description) = imp.find_module("testcfg", [root])
module = imp.load_module(name + "_testcfg", f, pathname, description)
return module.GetSuite(name, root, test_config)
finally:
if f:
f.close()
def __init__(self, name, root, test_config):
self.name = name # string
self.root = root # string containing path
self.test_config = test_config
self.tests = None # list of TestCase objects
self.statusfile = None
self.suppress_internals = False
def status_file(self):
return "%s/%s.status" % (self.root, self.name)
def do_suppress_internals(self):
"""Specifies if this test suite should suppress asserts based on internals.
Internals are e.g. testing against the outcome of native runtime functions.
This is switched off on some fuzzers that violate these contracts.
"""
self.suppress_internals = True
def ListTests(self, context):
raise NotImplementedError
def _LegacyVariantsGeneratorFactory(self):
"""The variant generator class to be used."""
return LegacyVariantsGenerator
def CreateLegacyVariantsGenerator(self, variants):
"""Return a generator for the testing variants of this suite.
Args:
variants: List of variant names to be run as specified by the test
runner.
Returns: An object of type LegacyVariantsGenerator.
"""
return self._LegacyVariantsGeneratorFactory()(self, set(variants))
def get_variants_gen(self, variants):
return self._variants_gen_class()(variants)
def _variants_gen_class(self):
return VariantsGenerator
def test_combiner_available(self):
return bool(self._test_combiner_class())
def get_test_combiner(self):
cls = self._test_combiner_class()
if cls:
return cls()
return None
def _test_combiner_class(self):
"""Returns Combiner subclass. None if suite doesn't support combining
tests.
"""
return None
def ReadStatusFile(self, variables):
self.statusfile = statusfile.StatusFile(self.status_file(), variables)
def ReadTestCases(self, context):
self.tests = self.ListTests(context)
def FilterTestCasesByStatus(self,
slow_tests_mode=None,
pass_fail_tests_mode=None):
"""Filters tests by outcomes from status file.
Status file has to be loaded before using this function.
Args:
slow_tests_mode: What to do with slow tests.
pass_fail_tests_mode: What to do with pass or fail tests.
Mode options:
None (default) - don't skip
"skip" - skip if slow/pass_fail
"run" - skip if not slow/pass_fail
"""
def _skip_slow(is_slow, mode):
return (
(mode == 'run' and not is_slow) or
(mode == 'skip' and is_slow))
def _skip_pass_fail(pass_fail, mode):
return (
(mode == 'run' and not pass_fail) or
(mode == 'skip' and pass_fail))
def _compliant(test):
if test.do_skip:
return False
if _skip_slow(test.is_slow, slow_tests_mode):
return False
if _skip_pass_fail(test.is_pass_or_fail, pass_fail_tests_mode):
return False
return True
self.tests = filter(_compliant, self.tests)
def FilterTestCasesByArgs(self, args):
"""Filter test cases based on command-line arguments.
args can be a glob: asterisks in any position of the argument
represent zero or more characters. Without asterisks, only exact matches
will be used with the exeption of the test-suite name as argument.
"""
filtered = []
globs = []
for a in args:
argpath = a.split('/')
if argpath[0] != self.name:
continue
if len(argpath) == 1 or (len(argpath) == 2 and argpath[1] == '*'):
return # Don't filter, run all tests in this suite.
path = '/'.join(argpath[1:])
globs.append(path)
for t in self.tests:
for g in globs:
if fnmatch.fnmatch(t.path, g):
filtered.append(t)
break
self.tests = filtered
def _create_test(self, path, **kwargs):
if self.suppress_internals:
test_class = self._suppressed_test_class()
else:
test_class = self._test_class()
return test_class(self, path, self._path_to_name(path), self.test_config,
**kwargs)
def _suppressed_test_class(self):
"""Optional testcase that suppresses assertions. Used by fuzzers that are
only interested in dchecks or tsan and that might violate the assertions
through fuzzing.
"""
return self._test_class()
def _test_class(self):
raise NotImplementedError
def _path_to_name(self, path):
if utils.IsWindows():
return path.replace("\\", "/")
return path