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runtest.py
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runtest.py
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#!/usr/bin/env python
from __future__ import print_function
import os, sys, re
import argparse, time
import signal, atexit, tempfile, subprocess
from subprocess import Popen, STDOUT, PIPE
from select import select
# Pseudo-TTY and terminal manipulation
import pty, array, fcntl, termios
IS_PY_3 = sys.version_info[0] == 3
debug_file = None
log_file = None
def debug(data):
if debug_file:
debug_file.write(data)
debug_file.flush()
def log(data, end='\n'):
if log_file:
log_file.write(data + end)
log_file.flush()
print(data, end=end)
sys.stdout.flush()
# TODO: do we need to support '\n' too
import platform
if platform.system().find("CYGWIN_NT") >= 0:
# TODO: this is weird, is this really right on Cygwin?
sep = "\n\r\n"
else:
sep = "\r\n"
rundir = None
class Runner():
def __init__(self, args, no_pty=False):
#print "args: %s" % repr(args)
self.no_pty = no_pty
# Cleanup child process on exit
atexit.register(self.cleanup)
self.p = None
env = os.environ
env['TERM'] = 'dumb'
env['INPUTRC'] = '/dev/null'
env['PERL_RL'] = 'false'
if no_pty:
self.p = Popen(args, bufsize=0,
stdin=PIPE, stdout=PIPE, stderr=STDOUT,
preexec_fn=os.setsid,
env=env)
self.stdin = self.p.stdin
self.stdout = self.p.stdout
else:
# provide tty to get 'interactive' readline to work
master, slave = pty.openpty()
# Set terminal size large so that readline will not send
# ANSI/VT escape codes when the lines are long.
buf = array.array('h', [100, 200, 0, 0])
fcntl.ioctl(master, termios.TIOCSWINSZ, buf, True)
self.p = Popen(args, bufsize=0,
stdin=slave, stdout=slave, stderr=STDOUT,
preexec_fn=os.setsid,
env=env)
# Now close slave so that we will get an exception from
# read when the child exits early
# http://stackoverflow.com/questions/11165521
os.close(slave)
self.stdin = os.fdopen(master, 'r+b', 0)
self.stdout = self.stdin
#print "started"
self.buf = ""
self.last_prompt = ""
def read_to_prompt(self, prompts, timeout):
end_time = time.time() + timeout
while time.time() < end_time:
[outs,_,_] = select([self.stdout], [], [], 1)
if self.stdout in outs:
new_data = self.stdout.read(1)
new_data = new_data.decode("utf-8") if IS_PY_3 else new_data
#print("new_data: '%s'" % new_data)
debug(new_data)
if self.no_pty:
self.buf += new_data.replace("\n", "\r\n")
else:
self.buf += new_data
self.buf = self.buf.replace("\r\r", "\r")
for prompt in prompts:
regexp = re.compile(prompt)
match = regexp.search(self.buf)
if match:
end = match.end()
buf = self.buf[0:end-len(prompt)]
self.buf = self.buf[end:]
self.last_prompt = prompt
return buf
return None
def writeline(self, str):
def _to_bytes(s):
return bytes(s, "utf-8") if IS_PY_3 else s
self.stdin.write(_to_bytes(str + "\n"))
def cleanup(self):
#print "cleaning up"
if self.p:
try:
os.killpg(self.p.pid, signal.SIGTERM)
except OSError:
pass
self.p = None
def assert_prompt(runner, prompts, timeout):
# Wait for the initial prompt
header = runner.read_to_prompt(prompts, timeout=timeout)
if not header == None:
if header:
log("Started with:\n%s" % header)
else:
log("Did not one of following prompt(s): %s" % repr(prompts))
log(" Got : %s" % repr(r.buf))
sys.exit(1)
### WebAssembly specific
parser = argparse.ArgumentParser(
description="Run a test file against a WebAssembly interpreter")
parser.add_argument('--wat2wasm', type=str,
default=os.environ.get("WAT2WASM", "wat2wasm"),
help="Path to wat2wasm program")
parser.add_argument('--interpreter', type=str,
default=os.environ.get("WA_CMD", "./wac"),
help="Path to WebAssembly interpreter")
parser.add_argument('--verbose', action='store_true',
help="Verbose logging")
parser.add_argument('--no-cleanup', action='store_true',
help="Keep temporary *.wasm files")
parser.add_argument('--rundir',
help="change to the directory before running tests")
parser.add_argument('--start-timeout', default=10, type=int,
help="default timeout for initial prompt")
parser.add_argument('--test-timeout', default=20, type=int,
help="default timeout for each individual test action")
parser.add_argument('--no-pty', action='store_true',
help="Use direct pipes instead of pseudo-tty")
parser.add_argument('--log-file', type=str,
help="Write messages to the named file in addition the screen")
parser.add_argument('--debug-file', type=str,
help="Write all test interaction the named file")
parser.add_argument('test_file', type=argparse.FileType('r'),
help="a WebAssembly *.wast test file")
# regex patterns of tests to skip
C_SKIP_TESTS = (
# names.wast
'invoke \"~!',
'invoke \".*\\\\',
'invoke \"print32',
# elem.wast
'module1',
# conversions.wast
'reinterpret_f.*nan',
# float_misc.wast
'f64.add.*0x1.fffffffffffffp\+969',
# float_literals.wast
'invoke.*-hex-sep5',
# float_exprs.wast
'nonarithmetic_nan_bitpattern.*03210' )
PY_SKIP_TESTS = (
# names.wast
'invoke \"~!',
# conversions.wast
'18446742974197923840.0',
'18446744073709549568.0',
'9223372036854775808',
'reinterpret_f.*nan',
# endianness
'.const 0x1.fff' )
def read_forms(string):
forms = []
form = ""
depth = 0
line = 0
pos = 0
while pos < len(string):
# Keep track of line number
if string[pos] == '\n': line += 1
# Ignore whitespace between top-level forms
if string[pos] in (' ', '\n', '\t'):
if depth != 0:
form += string[pos]
pos += 1
continue
#print("here0 line: %d, forms: %s" % (line, repr(forms)))
# Add top-level comments
if string[pos:pos+2] == ";;":
print
end = string.find("\n", pos)
if end == -1: end == len(string)
#form += string[pos:end]
#forms.append(string[pos:end])
pos = end
continue
# TODO: handle nested multi-line comments
if string[pos:pos+2] == "(;":
# Skip multi-line comment
end = string.find(";)", pos)
if end == -1:
raise Exception("mismatch multiline comment on line %d: '%s'" % (
line, string[pos:pos+80]))
pos = end+2
continue
# handle strings
if string[pos] == '"':
end = string.find('"', pos+1)
# TODO: fix when backslash itself may be quoted
while string[end-1] == '\\':
end = string.find('"', end+1)
if end == -1:
raise Exception("unterminated string line %d: '%s'" % (
line, string[pos:pos+80]))
form += string[pos:end+1]
pos = end+1
continue
# Read a top-level form
if string[pos] == '(': depth += 1
if string[pos] == ')': depth -= 1
if depth == 0 and not form:
raise Exception("garbage on line %d: '%s'" % (
line, string[pos:pos+80]))
form += string[pos]
if depth == 0 and form:
forms.append(form)
form = ""
pos += 1
return forms
def parse_const(val):
if val == '':
return (None, '')
type = val[0:3]
if type in ["i32", "i64"]:
if val[10:12] == "0x":
return (int(val[10:], 16),
"%s:%s" % (val[10:].lower(), type))
else:
return (int(val[10:]),
"%s:%s" % (hex(int(val[10:])), type))
elif type in ["f32", "f64"]:
if val.find("nan:") >= 0:
# TODO: how to handle this correctly
return (float.fromhex(val[10:].split(':')[1]),
"%s:%s" % (val[10:].split(':')[0], type))
elif val[10:12] == "0x" or val[10:13] == "-0x":
return (float.fromhex(val[10:]),
"%.7g:%s" % (float.fromhex(val[10:]), type))
else:
return (float(val[10:]),
"%.7g:%s" % (float(val[10:]), type))
else:
raise Exception("invalid value '%s'" % val)
def int2uint32(i):
return i & 0xffffffff
def int2int32(i):
val = i & 0xffffffff
if val & 0x80000000:
return val - 0x100000000
else:
return val
def int2uint64(i):
return i & 0xffffffffffffffff
def int2int64(i):
val = i & 0xffffffffffffffff
if val & 0x8000000000000000:
return val - 0x10000000000000000
else:
return val
def num_repr(i):
if isinstance(i, int) or isinstance(i, long):
return re.sub("L$", "", hex(i))
else:
return "%.16g" % i
def hexpad16(i):
return "0x%04x" % i
def hexpad24(i):
return "0x%06x" % i
def hexpad32(i):
return "0x%08x" % i
def hexpad64(i):
return "0x%016x" % i
def invoke(r, args, cmd):
r.writeline(cmd.strip())
return r.read_to_prompt(['\r\nwebassembly> ', '\nwebassembly> '],
timeout=args.test_timeout)
def test_assert(r, opts, mode, cmd, expected):
log("Testing(%s) %s = %s" % (mode, cmd, expected))
out = invoke(r, opts, cmd)
outs = [''] + out.split('\n')[1:]
out = outs[-1]
if mode=='trap':
o = re.sub('^Exception: ', '', out)
e = re.sub('^Exception: ', '', expected)
if o.find(e) >= 0 or e.find(o) >= 0:
return True
expects = set([expected])
m0 = re.search("^(-?[0-9\.e-]+):f32$", expected)
if m0:
if m0.group(1) == "-0":
expects.add("0:f32")
expects.add('%f:f32' % float(m0.group(1)))
expects.add('%f:f32' % round(float(m0.group(1)),5))
if expected == "-nan:f32":
expects.add("nan:f32")
if expected == "nan:f32":
expects.add("-nan:f32")
if expected == "-nan:f64":
expects.add("nan:f64")
if expected == "nan:f64":
expects.add("-nan:f64")
# munge the output some
out = re.sub("L:i32$", ':i32', out)
out = re.sub("L:i64$", ':i64', out)
results = set([out])
# create alternate representations
m1 = re.search("^(-?[0-9a-fx]+):i32$", out)
m2 = re.search("^(-?[0-9a-fx]+):i64$", out)
m3 = re.search("^(-?[0-9\.e-]+):f32$", out)
m4 = re.search("^(-?0x[0-9a-fp+\.]+):f32$", out)
m5 = re.search("^(-?[0-9\.e-]+):f64$", out)
m6 = re.search("^(-?0x[0-9a-fp+\.]+):f64$", out)
if m1:
val = int(m1.group(1), 16)
results.add(num_repr(int2int32(val))+":i32")
results.add(num_repr(int2uint32(val))+":i32")
results.add(hexpad16(int2uint32(val))+":i32")
results.add(hexpad24(int2uint32(val))+":i32")
results.add(hexpad32(int2uint32(val))+":i32")
elif m2:
val = int(m2.group(1), 16)
results.add(num_repr(int2int64(val))+":i64")
results.add(num_repr(int2uint64(val))+":i64")
results.add(hexpad32(int2uint64(val))+":i64")
results.add(hexpad64(int2uint64(val))+":i64")
elif m3:
val = float(m3.group(1))
if re.search("^.*\.0+$", m3.group(1)):
# Zero
results.add('%d:f32' % int(val))
results.add('%.7g:f32' % val)
else:
results.add('%.7g:f32' % val)
elif m4:
val = float.fromhex(m4.group(1))
results.add("%f:f32" % val)
results.add("%.7g:f32" % val)
elif m5:
val = float(m5.group(1))
if re.search("^.*\.0+$", m5.group(1)):
# Zero
results.add('%d:f64' % int(val))
results.add('%.7g:f64' % val)
else:
results.add('%.7g:f64' % val)
elif m6:
val = float.fromhex(m6.group(1))
results.add("%f:f64" % val)
results.add("%.7g:f64" % val)
if not expects.intersection(results):
raise Exception("Failed:\n expected: '%s' %s\n got: '%s' %s" % (
expected, expects, out, results))
return True
def test_assert_return(r, opts, form):
# params, return
m = re.search('^\(assert_return\s+\(invoke\s+"((?:[^"]|\\\")*)"\s+(\(.*\))\s*\)\s*(\([^)]+\))\s*\)\s*$', form, re.S)
if not m:
# no params, return
m = re.search('^\(assert_return\s+\(invoke\s+"((?:[^"]|\\\")*)"\s*\)\s+()(\([^)]+\))\s*\)\s*$', form, re.S)
if not m:
# params, no return
m = re.search('^\(assert_return\s+\(invoke\s+"([^"]*)"\s+(\(.*\))()\s*\)\s*\)\s*$', form, re.S)
if not m:
# no params, no return
m = re.search('^\(assert_return\s+\(invoke\s+"([^"]*)"\s*()()\)\s*\)\s*$', form, re.S)
if not m:
raise Exception("unparsed assert_return: '%s'" % form)
func = m.group(1)
if m.group(2) == '':
args = []
else:
args = [re.split(' +', v)[1] for v in re.split("\)\s*\(", m.group(2)[1:-1])]
result, expected = parse_const(m.group(3)[1:-1])
test_assert(r, opts, "return", "%s %s" % (func, " ".join(args)), expected)
def test_assert_trap(r, opts, form):
# params
m = re.search('^\(assert_trap\s+\(invoke\s+"([^"]*)"\s+(\(.*\))\s*\)\s*"([^"]+)"\s*\)\s*$', form)
if not m:
# no params
m = re.search('^\(assert_trap\s+\(invoke\s+"([^"]*)"\s*()\)\s*"([^"]+)"\s*\)\s*$', form)
if not m:
raise Exception("unparsed assert_trap: '%s'" % form)
func = m.group(1)
if m.group(2) == '':
args = []
else:
args = [re.split(' +', v)[1] for v in re.split("\)\s*\(", m.group(2)[1:-1])]
expected = "Exception: %s" % m.group(3)
test_assert(r, opts, "trap", "%s %s" % (func, " ".join(args)), expected)
def do_invoke(r, opts, form):
# params
m = re.search('^\(invoke\s+"([^"]+)"\s+(\(.*\))\s*\)\s*$', form)
if not m:
# no params
m = re.search('^\(invoke\s+"([^"]+)"\s*()\)\s*$', form)
if not m:
raise Exception("unparsed invoke: '%s'" % form)
func = m.group(1)
if m.group(2) == '':
args = []
else:
args = [re.split(' +', v)[1] for v in re.split("\)\s*\(", m.group(2)[1:-1])]
log("Invoking %s(%s)" % (
func, ", ".join([str(a) for a in args])))
invoke(r, opts, "%s %s" % (func, " ".join(args)))
def skip_test(form, skip_list):
for s in skip_list:
if re.search(s, form):
return True
return False
def is_ascii(s):
return all(ord(c) > 8 and ord(c) < 128 for c in s)
if __name__ == "__main__":
opts = parser.parse_args(sys.argv[1:])
if opts.rundir: os.chdir(opts.rundir)
if opts.log_file: log_file = open(opts.log_file, "a")
if opts.debug_file: debug_file = open(opts.debug_file, "a")
if opts.interpreter.endswith(".py"):
SKIP_TESTS = PY_SKIP_TESTS
else:
SKIP_TESTS = C_SKIP_TESTS
forms = read_forms(opts.test_file.read())
r = None
for form in forms:
try:
(t1fd, wat_tempfile) = tempfile.mkstemp(suffix=".wat")
(t2fd, wasm_tempfile) = tempfile.mkstemp(suffix=".wasm")
os.close(t1fd)
os.close(t2fd)
if ";;" == form[0:2]:
log(form)
elif skip_test(form, SKIP_TESTS):
log("Skipping test: %s" % form[0:60])
elif re.match("^\(assert_trap\s+\(module", form):
log("ignoring assert_trap around module")
elif re.match("^\(assert_exhaustion\\b.*", form):
log("ignoring assert_exhaustion")
elif re.match("^\(assert_unlinkable\\b.*", form):
log("ignoring assert_unlinkable")
elif re.match("^\(assert_malformed\\b.*", form):
log("ignoring assert_malformed")
elif re.match("^\(assert_return[_a-z]*_nan\\b.*", form):
log("ignoring assert_return_.*_nan")
elif re.match("^\(assert_return\s+\(get.*", form):
log("ignoring assert_return (get")
elif re.match(".*\(invoke\s+\$\\b.*", form):
log("ignoring invoke $FOO")
elif re.match("^\(module\\b.*", form):
log("Writing WAT module to '%s'" % wat_tempfile)
file(wat_tempfile, 'w').write(form)
log("Compiling WASM to '%s'" % wasm_tempfile)
cmd = [ opts.wat2wasm,
"--no-check",
wat_tempfile,
"-o",
wasm_tempfile ]
log("Running: %s" % " ".join(cmd))
subprocess.check_call(cmd)
log("Starting interpreter for module '%s'" % wasm_tempfile)
cmd = [opts.interpreter, "--repl", wasm_tempfile]
log("Running: %s" % " ".join(cmd))
r = Runner(cmd, no_pty=opts.no_pty)
# Wait for the initial prompt
try:
assert_prompt(r, ['webassembly> '], opts.start_timeout)
except:
_, exc, _ = sys.exc_info()
log("\nException: %s" % repr(exc))
log("Output before exception:\n%s" % r.buf)
sys.exit(1)
elif re.match("^\(assert_return\\b.*", form):
if not is_ascii(form):
log("Skipping assert_return with non-ASCII chars: %s" % form[0:60])
continue
log("%s" % repr(form))
test_assert_return(r, opts, form)
elif re.match("^\(assert_trap\\b.*", form):
#log("%s" % form)
test_assert_trap(r, opts, form)
elif re.match("^\(invoke\\b.*", form):
do_invoke(r, opts, form)
elif re.match("^\(assert_invalid\\b.*", form):
#log("ignoring assert_invalid")
pass
else:
raise Exception("unrecognized form '%s...'" % form[0:40])
finally:
if not opts.no_cleanup:
if opts.verbose:
log("Removing tempfiles: %s" % (
[wat_tempfile, wasm_tempfile]))
os.remove(wat_tempfile)
os.remove(wasm_tempfile)
else:
if opts.verbose:
log("Leaving tempfiles: %s" % (
[wat_tempfile, wasm_tempfile]))