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-rwxr-xr-xscripts/test/__init__.py17
-rwxr-xr-xscripts/test/s2wasm.py103
-rw-r--r--scripts/test/shared.py406
-rwxr-xr-xscripts/test/support.py158
4 files changed, 684 insertions, 0 deletions
diff --git a/scripts/test/__init__.py b/scripts/test/__init__.py
new file mode 100755
index 000000000..8db5bb0bf
--- /dev/null
+++ b/scripts/test/__init__.py
@@ -0,0 +1,17 @@
+#! /usr/bin/env python
+
+# Copyright 2015 WebAssembly Community Group participants
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Empty __init__.py file: Python treats the directory as containing a package.
diff --git a/scripts/test/s2wasm.py b/scripts/test/s2wasm.py
new file mode 100755
index 000000000..02cb5f147
--- /dev/null
+++ b/scripts/test/s2wasm.py
@@ -0,0 +1,103 @@
+#!/usr/bin/env python
+
+# Copyright 2016 WebAssembly Community Group participants
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import os
+from support import run_command
+from shared import (
+ fail, fail_with_error, fail_if_not_contained,
+ options, S2WASM, WASM_SHELL
+)
+
+
+def test_s2wasm():
+ print '\n[ checking .s testcases... ]\n'
+
+ for dot_s_dir in ['dot_s', 'llvm_autogenerated']:
+ dot_s_path = os.path.join(options.binaryen_test, dot_s_dir)
+ for s in sorted(os.listdir(dot_s_path)):
+ if not s.endswith('.s'):
+ continue
+ print '..', s
+ wasm = s.replace('.s', '.wast')
+ full = os.path.join(options.binaryen_test, dot_s_dir, s)
+ stack_alloc = (['--allocate-stack=1024']
+ if dot_s_dir == 'llvm_autogenerated'
+ else [])
+ cmd = S2WASM + [full, '--emscripten-glue'] + stack_alloc
+ if s.startswith('start_'):
+ cmd.append('--start')
+ actual = run_command(cmd)
+
+ # verify output
+ expected_file = os.path.join(options.binaryen_test, dot_s_dir, wasm)
+ if not os.path.exists(expected_file):
+ print actual
+ fail_with_error('output ' + expected_file + ' does not exist')
+ expected = open(expected_file, 'rb').read()
+ if actual != expected:
+ fail(actual, expected)
+
+ # verify with options
+ cmd = S2WASM + [full, '--global-base=1024'] + stack_alloc
+ run_command(cmd)
+
+ # run wasm-shell on the .wast to verify that it parses
+ cmd = WASM_SHELL + [expected_file]
+ run_command(cmd)
+
+
+def test_linker():
+ print '\n[ running linker tests... ]\n'
+ # The {main,foo,bar,baz}.s files were created by running clang over the
+ # respective c files. The foobar.bar archive was created by running:
+ # llvm-ar -format=gnu rc foobar.a quux.s foo.s bar.s baz.s
+ cmd = S2WASM + [
+ os.path.join(options.binaryen_test, 'linker', 'main.s'), '-l',
+ os.path.join(options.binaryen_test, 'linker', 'archive', 'foobar.a')]
+ output = run_command(cmd)
+ # foo should come from main.s and return 42
+ fail_if_not_contained(output, '(func $foo')
+ fail_if_not_contained(output, '(i32.const 42)')
+ # bar should be linked in from bar.s
+ fail_if_not_contained(output, '(func $bar')
+ # quux should be linked in from bar.s even though it comes before bar.s in
+ # the archive
+ fail_if_not_contained(output, '(func $quux')
+ # baz should not be linked in at all
+ if 'baz' in output:
+ fail_with_error('output should not contain "baz": ' + output)
+
+ # Test an archive using a string table
+ cmd = S2WASM + [
+ os.path.join(options.binaryen_test, 'linker', 'main.s'), '-l',
+ os.path.join(options.binaryen_test, 'linker', 'archive', 'barlong.a')]
+ output = run_command(cmd)
+ # bar should be linked from the archive
+ fail_if_not_contained(output, '(func $bar')
+
+ # Test exporting memory growth function
+ cmd = S2WASM + [
+ os.path.join(options.binaryen_test, 'linker', 'main.s'),
+ '--emscripten-glue', '--allow-memory-growth']
+ output = run_command(cmd)
+ fail_if_not_contained(
+ output, '(export "__growWasmMemory" (func $__growWasmMemory))')
+ fail_if_not_contained(output, '(func $__growWasmMemory (param $newSize i32)')
+
+
+if __name__ == '__main__':
+ test_s2wasm()
+ test_linker()
diff --git a/scripts/test/shared.py b/scripts/test/shared.py
new file mode 100644
index 000000000..5aff20091
--- /dev/null
+++ b/scripts/test/shared.py
@@ -0,0 +1,406 @@
+import argparse
+import difflib
+import os
+import shutil
+import subprocess
+import sys
+import urllib2
+
+
+usage_str = ("usage: 'python check.py [options]'\n\n"
+ "Runs the Binaryen test suite.")
+parser = argparse.ArgumentParser(description=usage_str)
+parser.add_argument(
+ '--torture', dest='torture', action='store_true', default=True,
+ help='Chooses whether to run the torture testcases. Default: true.')
+parser.add_argument(
+ '--no-torture', dest='torture', action='store_false',
+ help='Disables running the torture testcases.')
+parser.add_argument(
+ '--only-prepare', dest='only_prepare', action='store_true', default=False,
+ help='If enabled, only fetches the waterfall build. Default: false.')
+parser.add_argument(
+ # Backwards compatibility
+ '--only_prepare', dest='only_prepare', action='store_true', default=False,
+ help='If enabled, only fetches the waterfall build. Default: false.')
+parser.add_argument(
+ '--test-waterfall', dest='test_waterfall', action='store_true',
+ default=True,
+ help=('If enabled, fetches and tests the LLVM waterfall builds.'
+ ' Default: true.'))
+parser.add_argument(
+ '--no-test-waterfall', dest='test_waterfall', action='store_false',
+ help='Disables downloading and testing of the LLVM waterfall builds.')
+parser.add_argument(
+ '--abort-on-first-failure', dest='abort_on_first_failure',
+ action='store_true', default=True,
+ help=('Specifies whether to halt test suite execution on first test error.'
+ ' Default: true.'))
+parser.add_argument(
+ '--no-abort-on-first-failure', dest='abort_on_first_failure',
+ action='store_false',
+ help=('If set, the whole test suite will run to completion independent of'
+ ' earlier errors.'))
+parser.add_argument(
+ '--run-gcc-tests', dest='run_gcc_tests', action='store_true', default=True,
+ help=('Chooses whether to run the tests that require building with native'
+ ' GCC. Default: true.'))
+parser.add_argument(
+ '--no-run-gcc-tests', dest='run_gcc_tests', action='store_false',
+ help='If set, disables the native GCC tests.')
+
+parser.add_argument(
+ '--interpreter', dest='interpreter', default='',
+ help='Specifies the wasm interpreter executable to run tests on.')
+parser.add_argument(
+ '--binaryen-bin', dest='binaryen_bin', default='',
+ help=('Specifies a path to where the built Binaryen executables reside at.'
+ ' Default: bin/ of current directory (i.e. assume an in-tree build).'
+ ' If not specified, the environment variable BINARYEN_ROOT= can also'
+ ' be used to adjust this.'))
+parser.add_argument(
+ '--binaryen-root', dest='binaryen_root', default='',
+ help=('Specifies a path to the root of the Binaryen repository tree.'
+ ' Default: the directory where this file check.py resides.'))
+parser.add_argument(
+ '--valgrind', dest='valgrind', default='',
+ help=('Specifies a path to Valgrind tool, which will be used to validate'
+ ' execution if specified. (Pass --valgrind=valgrind to search in'
+ ' PATH)'))
+parser.add_argument(
+ '--valgrind-full-leak-check', dest='valgrind_full_leak_check',
+ action='store_true', default=False,
+ help=('If specified, all unfreed (but still referenced) pointers at the'
+ ' end of execution are considered memory leaks. Default: disabled.'))
+
+parser.add_argument(
+ 'positional_args', metavar='tests', nargs=argparse.REMAINDER,
+ help='Names specific tests to run.')
+options = parser.parse_args()
+requested = options.positional_args
+
+num_failures = 0
+warnings = []
+
+
+def warn(text):
+ global warnings
+ warnings.append(text)
+ print 'warning:', text
+
+
+# setup
+
+# Locate Binaryen build artifacts directory (bin/ by default)
+if not options.binaryen_bin:
+ if os.environ.get('BINARYEN_ROOT'):
+ if os.path.isdir(os.path.join(os.environ.get('BINARYEN_ROOT'), 'bin')):
+ options.binaryen_bin = os.path.join(
+ os.environ.get('BINARYEN_ROOT'), 'bin')
+ else:
+ options.binaryen_bin = os.environ.get('BINARYEN_ROOT')
+ else:
+ options.binaryen_bin = 'bin'
+
+wasm_dis_filenames = ['wasm-dis', 'wasm-dis.exe']
+if all(map(lambda f: not os.path.isfile(os.path.join(options.binaryen_bin, f)),
+ wasm_dis_filenames)):
+ warn('Binaryen not found (or has not been successfully built to bin/ ?')
+
+# Locate Binaryen source directory if not specified.
+if not options.binaryen_root:
+ path_parts = os.path.abspath(__file__).split(os.path.sep)
+ options.binaryen_root = os.path.sep.join(path_parts[:-3])
+
+options.binaryen_test = os.path.join(options.binaryen_root, 'test')
+
+
+# Finds the given executable 'program' in PATH.
+# Operates like the Unix tool 'which'.
+def which(program):
+ def is_exe(fpath):
+ return os.path.isfile(fpath) and os.access(fpath, os.X_OK)
+ fpath, fname = os.path.split(program)
+ if fpath:
+ if is_exe(program):
+ return program
+ else:
+ for path in os.environ["PATH"].split(os.pathsep):
+ path = path.strip('"')
+ exe_file = os.path.join(path, program)
+ if is_exe(exe_file):
+ return exe_file
+ if '.' not in fname:
+ if is_exe(exe_file + '.exe'):
+ return exe_file + '.exe'
+ if is_exe(exe_file + '.cmd'):
+ return exe_file + '.cmd'
+ if is_exe(exe_file + '.bat'):
+ return exe_file + '.bat'
+
+
+WATERFALL_BUILD_DIR = os.path.join(options.binaryen_test, 'wasm-install')
+BIN_DIR = os.path.abspath(os.path.join(
+ WATERFALL_BUILD_DIR, 'wasm-install', 'bin'))
+
+NATIVECC = (os.environ.get('CC') or which('mingw32-gcc') or
+ which('gcc') or which('clang'))
+NATIVEXX = (os.environ.get('CXX') or which('mingw32-g++') or
+ which('g++') or which('clang++'))
+NODEJS = which('nodejs') or which('node')
+MOZJS = which('mozjs')
+EMCC = which('emcc')
+
+WASM_OPT = [os.path.join(options.binaryen_bin, 'wasm-opt')]
+WASM_AS = [os.path.join(options.binaryen_bin, 'wasm-as')]
+WASM_DIS = [os.path.join(options.binaryen_bin, 'wasm-dis')]
+ASM2WASM = [os.path.join(options.binaryen_bin, 'asm2wasm')]
+WASM_SHELL = [os.path.join(options.binaryen_bin, 'wasm-shell')]
+S2WASM = [os.path.join(options.binaryen_bin, 's2wasm')]
+
+S2WASM_EXE = S2WASM[0]
+WASM_SHELL_EXE = WASM_SHELL[0]
+
+
+def wrap_with_valgrind(cmd):
+ # Exit code 97 is arbitrary, used to easily detect when an error occurs that
+ # is detected by Valgrind.
+ valgrind = [options.valgrind, '--quiet', '--error-exitcode=97']
+ if options.valgrind_full_leak_check:
+ valgrind += ['--leak-check=full', '--show-leak-kinds=all']
+ return valgrind + cmd
+
+
+if options.valgrind:
+ WASM_OPT = wrap_with_valgrind(WASM_OPT)
+ WASM_AS = wrap_with_valgrind(WASM_AS)
+ WASM_DIS = wrap_with_valgrind(WASM_DIS)
+ ASM2WASM = wrap_with_valgrind(ASM2WASM)
+ WASM_SHELL = wrap_with_valgrind(WASM_SHELL)
+ S2WASM = wrap_with_valgrind(S2WASM)
+
+os.environ['BINARYEN'] = os.getcwd()
+
+
+def fetch_waterfall():
+ rev = open(os.path.join(options.binaryen_test, 'revision')).read().strip()
+ buildername = {'linux2': 'linux',
+ 'darwin': 'mac',
+ 'win32': 'windows',
+ 'cygwin': 'windows'}[sys.platform]
+ try:
+ local_rev_path = os.path.join(options.binaryen_test, 'local-revision')
+ local_rev = open(local_rev_path).read().strip()
+ except:
+ local_rev = None
+ if local_rev == rev:
+ return
+ # fetch it
+ basename = 'wasm-binaries-' + rev + '.tbz2'
+ url = '/'.join(['https://storage.googleapis.com/wasm-llvm/builds',
+ buildername, rev, basename])
+ print '(downloading waterfall %s: %s)' % (rev, url)
+ downloaded = urllib2.urlopen(url).read().strip()
+ fullname = os.path.join(options.binaryen_test, basename)
+ open(fullname, 'wb').write(downloaded)
+ print '(unpacking)'
+ if os.path.exists(WATERFALL_BUILD_DIR):
+ shutil.rmtree(WATERFALL_BUILD_DIR)
+ os.mkdir(WATERFALL_BUILD_DIR)
+ subprocess.check_call(['tar', '-xf', os.path.abspath(fullname)],
+ cwd=WATERFALL_BUILD_DIR)
+ print '(noting local revision)'
+ with open(os.path.join(options.binaryen_test, 'local-revision'), 'w') as o:
+ o.write(rev)
+
+
+has_vanilla_llvm = False
+
+
+def setup_waterfall():
+ # if we can use the waterfall llvm, do so
+ global has_vanilla_llvm
+ CLANG = os.path.join(BIN_DIR, 'clang')
+ print 'trying waterfall clang at', CLANG
+ try:
+ subprocess.check_call([CLANG, '-v'])
+ has_vanilla_llvm = True
+ print '...success'
+ except Exception, e:
+ warn('could not run vanilla LLVM from waterfall: ' + str(e) +
+ ', looked for clang at ' + CLANG)
+
+
+if options.test_waterfall:
+ fetch_waterfall()
+ setup_waterfall()
+
+if options.only_prepare:
+ print 'waterfall is fetched and setup, exiting since --only-prepare'
+ sys.exit(0)
+
+# external tools
+
+try:
+ subprocess.check_call(
+ [NODEJS, '--version'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+except:
+ NODEJS = None
+ warn('no node found (did not check proper js form)')
+
+try:
+ subprocess.check_call(
+ [MOZJS, '--version'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+except:
+ MOZJS = None
+ warn('no mozjs found (did not check native wasm support nor asm.js'
+ ' validation)')
+
+try:
+ subprocess.check_call(
+ [EMCC, '--version'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+except:
+ EMCC = None
+ warn('no emcc found (did not check non-vanilla emscripten/binaryen'
+ ' integration)')
+
+has_vanilla_emcc = False
+try:
+ subprocess.check_call(
+ [os.path.join(options.binaryen_test, 'emscripten', 'emcc'), '--version'],
+ stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+ has_vanilla_emcc = True
+except:
+ pass
+
+
+# utilities
+
+# removes a file if it exists, using any and all ways of doing so
+def delete_from_orbit(filename):
+ try:
+ os.unlink(filename)
+ except:
+ pass
+ if not os.path.exists(filename):
+ return
+ try:
+ shutil.rmtree(filename, ignore_errors=True)
+ except:
+ pass
+ if not os.path.exists(filename):
+ return
+ try:
+ import stat
+ os.chmod(filename, os.stat(filename).st_mode | stat.S_IWRITE)
+
+ def remove_readonly_and_try_again(func, path, exc_info):
+ if not (os.stat(path).st_mode & stat.S_IWRITE):
+ os.chmod(path, os.stat(path).st_mode | stat.S_IWRITE)
+ func(path)
+ else:
+ raise
+ shutil.rmtree(filename, onerror=remove_readonly_and_try_again)
+ except:
+ pass
+
+
+def fail_with_error(msg):
+ global num_failures
+ try:
+ num_failures += 1
+ raise Exception(msg)
+ except Exception, e:
+ print >> sys.stderr, str(e)
+ if options.abort_on_first_failure:
+ raise
+
+
+def fail(actual, expected):
+ diff_lines = difflib.unified_diff(
+ expected.split('\n'), actual.split('\n'),
+ fromfile='expected', tofile='actual')
+ diff_str = ''.join([a.rstrip() + '\n' for a in diff_lines])[:]
+ fail_with_error("incorrect output, diff:\n\n%s" % diff_str)
+
+
+def fail_if_not_identical(actual, expected):
+ if expected != actual:
+ fail(actual, expected)
+
+
+def fail_if_not_contained(actual, expected):
+ if expected not in actual:
+ fail(actual, expected)
+
+
+if len(requested) == 0:
+ tests = sorted(os.listdir(os.path.join(options.binaryen_test)))
+else:
+ tests = requested[:]
+
+if not options.interpreter:
+ warn('no interpreter provided (did not test spec interpreter validation)')
+
+if not has_vanilla_emcc:
+ warn('no functional emcc submodule found')
+
+
+# check utilities
+
+def binary_format_check(wast, verify_final_result=True, wasm_as_args=['-g'],
+ binary_suffix='.fromBinary'):
+ # checks we can convert the wast to binary and back
+
+ print ' (binary format check)'
+ cmd = WASM_AS + [wast, '-o', 'a.wasm'] + wasm_as_args
+ print ' ', ' '.join(cmd)
+ if os.path.exists('a.wasm'):
+ os.unlink('a.wasm')
+ subprocess.check_call(cmd, stdout=subprocess.PIPE)
+ assert os.path.exists('a.wasm')
+
+ cmd = WASM_DIS + ['a.wasm', '-o', 'ab.wast']
+ print ' ', ' '.join(cmd)
+ if os.path.exists('ab.wast'):
+ os.unlink('ab.wast')
+ subprocess.check_call(cmd, stdout=subprocess.PIPE)
+ assert os.path.exists('ab.wast')
+
+ # make sure it is a valid wast
+ cmd = WASM_OPT + ['ab.wast']
+ print ' ', ' '.join(cmd)
+ subprocess.check_call(cmd, stdout=subprocess.PIPE)
+
+ if verify_final_result:
+ expected = open(wast + binary_suffix).read()
+ actual = open('ab.wast').read()
+ if actual != expected:
+ fail(actual, expected)
+
+ return 'ab.wast'
+
+
+def minify_check(wast, verify_final_result=True):
+ # checks we can parse minified output
+
+ print ' (minify check)'
+ cmd = WASM_OPT + [wast, '--print-minified']
+ print ' ', ' '.join(cmd)
+ subprocess.check_call(
+ WASM_OPT + [wast, '--print-minified'],
+ stdout=open('a.wasm', 'w'), stderr=subprocess.PIPE)
+ assert os.path.exists('a.wasm')
+ subprocess.check_call(
+ WASM_OPT + ['a.wasm', '--print-minified'],
+ stdout=open('b.wasm', 'w'), stderr=subprocess.PIPE)
+ assert os.path.exists('b.wasm')
+ if verify_final_result:
+ expected = open('a.wasm').read()
+ actual = open('b.wasm').read()
+ if actual != expected:
+ fail(actual, expected)
+ if os.path.exists('a.wasm'):
+ os.unlink('a.wasm')
+ if os.path.exists('b.wasm'):
+ os.unlink('b.wasm')
diff --git a/scripts/test/support.py b/scripts/test/support.py
new file mode 100755
index 000000000..43762fffa
--- /dev/null
+++ b/scripts/test/support.py
@@ -0,0 +1,158 @@
+#! /usr/bin/env python
+
+# Copyright 2016 WebAssembly Community Group participants
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import filecmp
+import os
+import shutil
+import subprocess
+import sys
+import tempfile
+
+
+def _open_archive(tarfile, tmp_dir):
+ with tempfile.TemporaryFile(mode='w+') as f:
+ try:
+ subprocess.check_call(['tar', '-xvf', tarfile], cwd=tmp_dir, stdout=f)
+ except:
+ f.seek(0)
+ sys.stderr.write(f.read())
+ raise
+ return os.listdir(tmp_dir)
+
+
+def _files_same(dir1, dir2, basenames):
+ diff = filecmp.cmpfiles(dir1, dir2, basenames)
+ return 0 == len(diff[1] + diff[2])
+
+
+def _dirs_same(dir1, dir2, basenames):
+ for d in basenames:
+ left = os.path.join(dir1, d)
+ right = os.path.join(dir2, d)
+ if not (os.path.isdir(left) and os.path.isdir(right)):
+ return False
+ diff = filecmp.dircmp(right, right)
+ if 0 != len(diff.left_only + diff.right_only + diff.diff_files +
+ diff.common_funny + diff.funny_files):
+ return False
+ return True
+
+
+def _move_files(dirfrom, dirto, basenames):
+ for f in basenames:
+ from_file = os.path.join(dirfrom, f)
+ to_file = os.path.join(dirto, f)
+ if os.path.isfile(to_file):
+ os.path.remove(to_file)
+ shutil.move(from_file, to_file)
+
+
+def _move_dirs(dirfrom, dirto, basenames):
+ for d in basenames:
+ from_dir = os.path.join(dirfrom, d)
+ to_dir = os.path.join(dirto, d)
+ if os.path.isdir(to_dir):
+ shutil.rmtree(to_dir)
+ shutil.move(from_dir, to_dir)
+
+
+def untar(tarfile, outdir):
+ """Returns True if untar content differs from pre-existing outdir content."""
+ tmpdir = tempfile.mkdtemp()
+ try:
+ untared = _open_archive(tarfile, tmpdir)
+ files = [f for f in untared if os.path.isfile(os.path.join(tmpdir, f))]
+ dirs = [d for d in untared if os.path.isdir(os.path.join(tmpdir, d))]
+ assert len(files) + len(dirs) == len(untared), 'Only files and directories'
+ if _files_same(tmpdir, outdir, files) and _dirs_same(tmpdir, outdir, dirs):
+ # Nothing new or different in the tarfile.
+ return False
+ # Some or all of the files / directories are new.
+ _move_files(tmpdir, outdir, files)
+ _move_dirs(tmpdir, outdir, dirs)
+ return True
+ finally:
+ if os.path.isdir(tmpdir):
+ shutil.rmtree(tmpdir)
+
+
+def split_wast(wast):
+ # .wast files can contain multiple modules, and assertions for each one.
+ # this splits out a wast into [(module, assertions), ..]
+ # we ignore module invalidity tests here.
+ wast = open(wast).read()
+ ret = []
+
+ def to_end(j):
+ depth = 1
+ while depth > 0 and j < len(wast):
+ if wast[j] == '"':
+ while 1:
+ j = wast.find('"', j + 1)
+ if wast[j - 1] == '\\':
+ continue
+ break
+ assert j > 0
+ elif wast[j] == '(':
+ depth += 1
+ elif wast[j] == ')':
+ depth -= 1
+ elif wast[j] == ';' and wast[j + 1] == ';':
+ j = wast.find('\n', j)
+ j += 1
+ return j
+
+ i = 0
+ while i >= 0:
+ start = wast.find('(', i)
+ if start >= 0 and wast[start + 1] == ';':
+ # block comment
+ i = wast.find(';)', start + 2)
+ assert i > 0, wast[start:]
+ i += 2
+ continue
+ skip = wast.find(';', i)
+ if skip >= 0 and skip < start and skip + 1 < len(wast):
+ if wast[skip + 1] == ';':
+ i = wast.find('\n', i) + 1
+ continue
+ if start < 0:
+ break
+ i = to_end(start + 1)
+ chunk = wast[start:i]
+ if chunk.startswith('(module'):
+ ret += [(chunk, [])]
+ elif chunk.startswith('(assert_invalid'):
+ continue
+ elif chunk.startswith(('(assert', '(invoke')):
+ ret[-1][1].append(chunk)
+ return ret
+
+
+def run_command(cmd, expected_status=0, stderr=None, expected_err=None):
+ if expected_err is not None:
+ assert stderr == subprocess.PIPE or stderr is None,\
+ "Can't redirect stderr if using expected_err"
+ stderr = subprocess.PIPE
+ print 'executing: ', ' '.join(cmd)
+ proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=stderr)
+ out, err = proc.communicate()
+ if proc.returncode != expected_status:
+ raise Exception(('run_command failed', err))
+ if expected_err is not None and err != expected_err:
+ raise Exception(('run_command unexpected stderr',
+ "expected '%s', actual '%s'" % (expected_err, err)))
+ return out