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#!/usr/bin/env python
# Copyright 2016 the V8 project authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import os
import subprocess
import sys
import unittest
import v8_foozzie
import v8_fuzz_config
import v8_suppressions
BASE_DIR = os.path.dirname(os.path.abspath(__file__))
FOOZZIE = os.path.join(BASE_DIR, 'v8_foozzie.py')
TEST_DATA = os.path.join(BASE_DIR, 'testdata')
class ConfigTest(unittest.TestCase):
def testExperiments(self):
"""Test that probabilities add up to 100 and that all config names exist.
"""
EXPERIMENTS = v8_fuzz_config.FOOZZIE_EXPERIMENTS
CONFIGS = v8_foozzie.CONFIGS
assert sum(x[0] for x in EXPERIMENTS) == 100
assert all(map(lambda x: x[1] in CONFIGS, EXPERIMENTS))
assert all(map(lambda x: x[2] in CONFIGS, EXPERIMENTS))
assert all(map(lambda x: x[3].endswith('d8'), EXPERIMENTS))
def testConfig(self):
"""Smoke test how to choose experiments.
When experiment distribution changes this test might change, too.
"""
class Rng(object):
def random(self):
return 0.5
self.assertEqual(
[
'--first-config=ignition',
'--second-config=ignition_turbo',
'--second-d8=d8',
'--second-config-extra-flags=--stress-scavenge=100',
],
v8_fuzz_config.Config('foo', Rng(), 42).choose_foozzie_flags(),
)
class UnitTest(unittest.TestCase):
def testDiff(self):
# TODO(machenbach): Mock out suppression configuration.
suppress = v8_suppressions.get_suppression(
'x64', 'ignition', 'x64', 'ignition_turbo')
one = ''
two = ''
diff = None, None
self.assertEquals(diff, suppress.diff(one, two))
one = 'a \n b\nc();'
two = 'a \n b\nc();'
diff = None, None
self.assertEquals(diff, suppress.diff(one, two))
# Ignore line before caret, caret position and error message.
one = """
undefined
weird stuff
^
somefile.js: TypeError: undefined is not a function
undefined
"""
two = """
undefined
other weird stuff
^
somefile.js: TypeError: baz is not a function
undefined
"""
diff = None, None
self.assertEquals(diff, suppress.diff(one, two))
one = """
Still equal
Extra line
"""
two = """
Still equal
"""
diff = '- Extra line', None
self.assertEquals(diff, suppress.diff(one, two))
one = """
Still equal
"""
two = """
Still equal
Extra line
"""
diff = '+ Extra line', None
self.assertEquals(diff, suppress.diff(one, two))
one = """
undefined
somefile.js: TypeError: undefined is not a constructor
"""
two = """
undefined
otherfile.js: TypeError: undefined is not a constructor
"""
diff = """- somefile.js: TypeError: undefined is not a constructor
+ otherfile.js: TypeError: undefined is not a constructor""", None
self.assertEquals(diff, suppress.diff(one, two))
def cut_verbose_output(stdout):
# This removes first lines containing d8 commands.
return '\n'.join(stdout.split('\n')[4:])
def run_foozzie(first_d8, second_d8, *extra_flags):
return subprocess.check_output([
sys.executable, FOOZZIE,
'--random-seed', '12345',
'--first-d8', os.path.join(TEST_DATA, first_d8),
'--second-d8', os.path.join(TEST_DATA, second_d8),
'--first-config', 'ignition',
'--second-config', 'ignition_turbo',
os.path.join(TEST_DATA, 'fuzz-123.js'),
] + list(extra_flags))
class SystemTest(unittest.TestCase):
def testSyntaxErrorDiffPass(self):
stdout = run_foozzie('test_d8_1.py', 'test_d8_2.py', '--skip-sanity-checks')
self.assertEquals('# V8 correctness - pass\n', cut_verbose_output(stdout))
def testDifferentOutputFail(self):
with open(os.path.join(TEST_DATA, 'failure_output.txt')) as f:
expected_output = f.read()
with self.assertRaises(subprocess.CalledProcessError) as ctx:
run_foozzie('test_d8_1.py', 'test_d8_3.py', '--skip-sanity-checks',
'--first-config-extra-flags=--flag1',
'--first-config-extra-flags=--flag2=0',
'--second-config-extra-flags=--flag3')
e = ctx.exception
self.assertEquals(v8_foozzie.RETURN_FAIL, e.returncode)
self.assertEquals(expected_output, cut_verbose_output(e.output))
def testSanityCheck(self):
with open(os.path.join(TEST_DATA, 'sanity_check_output.txt')) as f:
expected_output = f.read()
with self.assertRaises(subprocess.CalledProcessError) as ctx:
run_foozzie('test_d8_1.py', 'test_d8_3.py')
e = ctx.exception
self.assertEquals(v8_foozzie.RETURN_FAIL, e.returncode)
self.assertEquals(expected_output, e.output)
if __name__ == '__main__':
unittest.main()