forked from Storyyeller/Krakatau
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runtests.py
executable file
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runtests.py
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from __future__ import print_function
map = lambda *args: list(__builtins__.map(*args))
import ast
import collections
import hashlib
import json
import multiprocessing
import os
import re
import shutil
import subprocess
import sys
import tempfile
import time
import zipfile
from Krakatau import script_util
from Krakatau.assembler.tokenize import AsssemblerError
if sys.version_info < (3, 0):
import decompile
import disassemble
import assemble
import tests
# Note: If this script is moved, be sure to update this path.
krakatau_root = os.path.dirname(os.path.abspath(__file__))
cache_location = os.path.join(krakatau_root, 'tests', '.cache')
dec_class_location = os.path.join(krakatau_root, 'tests', 'decompiler', 'classes')
dis_class_location = os.path.join(krakatau_root, 'tests', 'disassembler', 'classes')
dis2_class_location = os.path.join(krakatau_root, 'tests', 'roundtrip', 'classes')
class TestFailed(Exception):
pass
def execute(args, cwd):
print('executing command', args, 'in directory', cwd)
process = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE, cwd=cwd)
stdout, stderr = process.communicate()
return (stdout.decode('utf8'), stderr.decode('utf8'))
def read(filename):
with open(filename, 'rb') as f:
return f.read()
def shash(data): return hashlib.sha256(data).hexdigest()
###############################################################################
def _runJava(target, in_fname, argslist):
tdir = tempfile.mkdtemp()
with open(in_fname, 'rb') as temp:
isclass = temp.read(4) == b'\xCA\xFE\xBA\xBE'
cmd_base = ['java']
# cmd_base = '/usr/lib/jvm/jdk-18/bin/java --enable-preview'.split()
if isclass:
shutil.copy2(in_fname, os.path.join(tdir, target + '.class'))
func = lambda args: execute(cmd_base + [target] + list(args), cwd=tdir)
else:
shutil.copy2(in_fname, os.path.join(tdir, target + '.jar'))
func = lambda args: execute(cmd_base + ['-cp', target + '.jar', target] + list(args), cwd=tdir)
for args in argslist:
# results = execute(['java', target] + list(args), cwd=tdir)
stdout, stderr = func(args)
if 'VerifyError' in stderr or 'ClassFormatError':
print(stderr)
assert 'VerifyError' not in stderr
assert 'ClassFormatError' not in stderr
yield (stdout, stderr)
shutil.rmtree(tdir)
def runJava(target, in_fname, argslist):
digest = shash(read(in_fname) + json.dumps(argslist).encode())
cache = os.path.join(cache_location, digest)
try:
with open(cache, 'r') as f:
return json.load(f)
except IOError:
print('failed to load cache', digest)
results = list(_runJava(target, in_fname, argslist))
with open(cache, 'w') as f:
json.dump(results, f)
# reparse json to ensure consistent results in 1st time vs cache hit
with open(cache, 'r') as f:
return json.load(f)
def compileJava(target, in_fname):
assert not in_fname.endswith('.class')
digest = shash(read(in_fname))
cache = os.path.join(cache_location, digest)
if not os.path.exists(cache):
tdir = tempfile.mkdtemp()
shutil.copy2(in_fname, os.path.join(tdir, target + '.java'))
_, stderr = execute(['javac', target + '.java', '-g:none'], cwd=tdir)
if 'error:' in stderr: # Ignore compiler unchecked warnings by looking for 'error:'
raise TestFailed('Compile failed: ' + stderr)
shutil.copy2(os.path.join(tdir, target + '.class'), cache)
shutil.rmtree(tdir)
return cache
def runJavaAndCompare(target, testcases, good_fname, new_fname):
expected_results = runJava(target, good_fname, testcases)
actual_results = runJava(target, new_fname, testcases)
for args, expected, actual in zip(testcases, expected_results, actual_results):
if expected != actual:
message = ['Failed test {} w/ args {}:'.format(target, args)]
if actual[0] != expected[0]:
message.append(' expected stdout: ' + repr(expected[0]))
message.append(' actual stdout : ' + repr(actual[0]))
if actual[1] != expected[1]:
message.append(' expected stderr: ' + repr(expected[1]))
message.append(' actual stderr : ' + repr(actual[1]))
raise TestFailed('\n'.join(message))
def runDecompilerTest(target, testcases):
print('Running decompiler test {}...'.format(target))
tdir = tempfile.mkdtemp()
cpath = [decompile.findJRE(), dec_class_location]
if cpath[0] is None:
raise RuntimeError('Unable to locate rt.jar')
decompile.decompileClass(cpath, targets=[target], outpath=tdir, add_throws=True)
new_fname = compileJava(target, os.path.join(tdir, target + '.java'))
# testcases = map(tuple, tests.decompiler.registry[target])
good_fname = os.path.join(dec_class_location, target + '.class')
runJavaAndCompare(target, testcases, good_fname, new_fname)
shutil.rmtree(tdir)
def _readTestContents(base, target):
classloc = os.path.join(base, target + '.class')
jarloc = os.path.join(base, target + '.jar')
isjar = not os.path.exists(classloc)
contents = collections.OrderedDict()
if isjar:
with zipfile.ZipFile(jarloc, 'r') as archive:
for name in archive.namelist():
if not name.endswith('.class'):
continue
name = name[:-len('.class')]
assert name not in contents
with archive.open(name + '.class') as f:
contents[name] = f.read()
good_fname = jarloc
else:
with open(classloc, 'rb') as f:
contents[target] = f.read()
good_fname = classloc
return contents, good_fname, isjar
def _disassemble(contents, roundtrip):
with script_util.MockWriter() as out:
disassemble.disassembleSub(contents.get, out, list(contents), roundtrip=roundtrip)
disassembled = collections.OrderedDict(out.results)
assert out.results == list(disassembled.items())
return disassembled
def _assemble(disassembled):
assembled = collections.OrderedDict()
for name, source in disassembled.items():
for name2, data in assemble.assembleSource(source, name, fatal=True):
assert name == name2
assembled[name.decode('utf8')] = data
return assembled
def runDisassemblerTest(disonly, basedir, target, testcases):
print('Running disassembler test {}...'.format(target))
tdir = tempfile.mkdtemp()
contents, good_fname, isjar = _readTestContents(basedir, target)
# roundtrip test
disassembled = _disassemble(contents, True)
assembled = _assemble(disassembled)
for name, classfile in contents.items():
assert classfile == assembled[name]
# non roundtrip
disassembled = _disassemble(contents, False)
assembled = _assemble(disassembled)
for name, classfile in contents.items():
assert len(classfile) >= len(assembled[name])
if not disonly:
if isjar:
new_fname = os.path.join(tdir, target + '.jar')
with script_util.JarWriter(new_fname, '.class') as out:
for cname, data in assembled.items():
out.write(cname, data)
else:
# new_fname = os.path.join(tdir, target + '.class')
with script_util.DirectoryWriter(tdir, '.class') as out:
new_fname = out.write(target, assembled[target])
runJavaAndCompare(target, testcases, good_fname, new_fname)
shutil.rmtree(tdir)
PP_MARKER = b'###preprocess###\n'
RANGE_RE = re.compile(br'###range(\([^)]+\)):')
def preprocess(source, fname):
if source.startswith(PP_MARKER):
print('Preprocessing', fname)
buf = bytearray()
pos = len(PP_MARKER)
dstart = source.find(b'###range', pos)
while dstart != -1:
buf += source[pos:dstart]
dend = source.find(b'###', dstart + 3)
m = RANGE_RE.match(source, dstart, dend)
pattern = source[m.end():dend].decode('utf8')
for i in range(*ast.literal_eval(m.group(1).decode('utf8'))):
buf += pattern.format(i, ip1=i+1).encode()
pos = dend + 3
dstart = source.find(b'###range', pos)
buf += source[pos:]
source = bytes(buf)
# with open('temp/' + os.path.basename(fname), 'wb') as f:
# f.write(source)
return source.decode('utf8')
def runAssemblerTest(fname, exceptFailure):
basename = os.path.basename(fname)
print('Running assembler test', basename)
with open(fname, 'rb') as f: # not unicode
source = f.read()
source = preprocess(source, fname)
error = False
try:
assemble.assembleSource(source, basename, fatal=True)
except AsssemblerError:
error = True
assert error == exceptFailure
def runTest(data):
try:
{
'decompiler': runDecompilerTest,
'disassembler': runDisassemblerTest,
'assembler': runAssemblerTest,
}[data[0]](*data[1:])
except Exception:
import traceback
return 'Test {} failed:\n'.format(data) + traceback.format_exc()
def addAssemblerTests(testlist, target_filter, basedir, exceptFailure):
for fname in os.listdir(basedir):
if fname.endswith('.j') and target_filter(fname.rpartition('.')):
testlist.append(('assembler', os.path.join(basedir, fname), exceptFailure))
if __name__ == '__main__':
do_decompile = 'd' in sys.argv[1] if len(sys.argv) > 1 else True
do_disassemble = 's' in sys.argv[1] if len(sys.argv) > 1 else True
do_assemble = 'a' in sys.argv[1] if len(sys.argv) > 1 else True
if len(sys.argv) > 2:
def target_filter(x):
return x[0] == sys.argv[2]
else:
target_filter = lambda x: True
try:
os.mkdir(cache_location)
except OSError:
pass
start_time = time.time()
testlist = []
if do_decompile:
for target, testcases in filter(target_filter, sorted(tests.decompiler.registry.items())):
testlist.append(('decompiler', target, map(tuple, testcases)))
if do_disassemble:
for target, testcases in filter(target_filter, sorted(tests.disassembler.registry.items())):
testlist.append(('disassembler', False, dis_class_location, target, map(tuple, testcases)))
for target, testcases in filter(target_filter, sorted(tests.decompiler.registry.items())):
testlist.append(('disassembler', False, dec_class_location, target, map(tuple, testcases)))
for fname in os.listdir(dis2_class_location):
target = fname.rpartition('.')[0]
if target_filter((target, [])):
testlist.append(('disassembler', True, dis2_class_location, target, None))
if do_assemble:
test_base = os.path.join(krakatau_root, 'tests')
addAssemblerTests(testlist, target_filter, os.path.join(test_base, 'assembler', 'bad'), True)
addAssemblerTests(testlist, target_filter, os.path.join(test_base, 'assembler', 'good'), False)
addAssemblerTests(testlist, target_filter, os.path.join(test_base, 'decompiler', 'source'), False)
addAssemblerTests(testlist, target_filter, os.path.join(test_base, 'disassembler', 'source'), False)
print(len(testlist), 'test cases found')
assert testlist
# for error in multiprocessing.Pool(processes=5).map(runTest, testlist):
for error in map(runTest, testlist):
if error:
print(error)
break
else:
print('All {} tests passed!'.format(len(testlist)))
print('elapsed time:', time.time()-start_time)