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import os, shutil, stat, subprocess
from runner import RunnerCore, path_from_root
from tools.shared import *
SANITY_FILE = CONFIG_FILE + '_sanity'
commands = [[PYTHON, EMCC], [PYTHON, path_from_root('tests', 'runner.py'), 'blahblah']]
def restore():
shutil.copyfile(CONFIG_FILE + '_backup', CONFIG_FILE)
def wipe():
try_delete(CONFIG_FILE)
try_delete(SANITY_FILE)
def mtime(filename):
return os.stat(filename).st_mtime
SANITY_MESSAGE = 'Emscripten: Running sanity checks'
class sanity(RunnerCore):
@classmethod
def setUpClass(self):
super(RunnerCore, self).setUpClass()
shutil.copyfile(CONFIG_FILE, CONFIG_FILE + '_backup')
print
print 'Running sanity checks.'
print 'WARNING: This will modify %s, and in theory can break it although it should be restored properly. A backup will be saved in %s_backup' % (EM_CONFIG, EM_CONFIG)
print
assert os.path.exists(CONFIG_FILE), 'To run these tests, we need a (working!) %s file to already exist' % EM_CONFIG
assert not os.environ.get('EMCC_DEBUG'), 'do not run sanity checks in debug mode!'
@classmethod
def tearDownClass(self):
super(RunnerCore, self).tearDownClass()
def setUp(self):
wipe()
def tearDown(self):
restore()
def do(self, command):
if type(command) is not list:
command = [command]
if command[0] == EMCC:
command = [PYTHON] + command
return Popen(command, stdout=PIPE, stderr=STDOUT).communicate()[0]
def check_working(self, command, expected=None):
if type(command) is not list:
command = [command]
if expected is None:
if command[0] == EMCC or (len(command) >= 2 and command[1] == EMCC):
expected = 'no input files'
else:
expected = "No tests found for ['blahblah']"
output = self.do(command)
self.assertContained(expected, output)
return output
def test_aaa_normal(self): # this should be the very first thing that runs. if this fails, everything else is irrelevant!
for command in commands:
# Your existing EM_CONFIG should work!
restore()
self.check_working(command)
def test_firstrun(self):
for command in commands:
wipe()
def make_executable(name):
with open(os.path.join(temp_bin, name), 'w') as f:
os.fchmod(f.fileno(), stat.S_IRWXU)
try:
temp_bin = tempfile.mkdtemp()
old_environ_path = os.environ['PATH']
os.environ['PATH'] = temp_bin + os.pathsep + old_environ_path
make_executable('llvm-dis')
make_executable('node')
make_executable('python2')
output = self.do(command)
finally:
os.environ['PATH'] = old_environ_path
shutil.rmtree(temp_bin)
self.assertContained('Welcome to Emscripten!', output)
self.assertContained('This is the first time any of the Emscripten tools has been run.', output)
self.assertContained('A settings file has been copied to %s, at absolute path: %s' % (EM_CONFIG, CONFIG_FILE), output)
self.assertContained('It contains our best guesses for the important paths, which are:', output)
self.assertContained('LLVM_ROOT', output)
self.assertContained('NODE_JS', output)
if platform.system() is not 'Windows':
# os.chmod can't make files executable on Windows
self.assertIdentical(temp_bin, re.search("^ *LLVM_ROOT *= (.*)$", output, re.M).group(1))
self.assertIdentical(os.path.join(temp_bin, 'node'), re.search("^ *NODE_JS *= (.*)$", output, re.M).group(1))
self.assertContained('Please edit the file if any of those are incorrect', output)
self.assertContained('This command will now exit. When you are done editing those paths, re-run it.', output)
assert output.split()[-1].endswith('===='), 'We should have stopped: ' + output
config_file = open(CONFIG_FILE).read()
template_file = open(path_from_root('tools', 'settings_template_readonly.py')).read()
self.assertNotContained('~/.emscripten', config_file)
self.assertContained('~/.emscripten', template_file)
self.assertNotContained('{{{', config_file)
self.assertNotContained('}}}', config_file)
self.assertContained('{{{', template_file)
self.assertContained('}}}', template_file)
for content in ['EMSCRIPTEN_ROOT', 'LLVM_ROOT', 'NODE_JS', 'TEMP_DIR', 'COMPILER_ENGINE', 'JS_ENGINES']:
self.assertContained(content, config_file)
# The guessed config should be ok XXX This depends on your local system! it is possible `which` guesses wrong
#try_delete('a.out.js')
#output = Popen([PYTHON, EMCC, path_from_root('tests', 'hello_world.c')], stdout=PIPE, stderr=PIPE).communicate()
#self.assertContained('hello, world!', run_js('a.out.js'), output)
# Second run, with bad EM_CONFIG
for settings in ['blah', 'LLVM_ROOT="blarg"; JS_ENGINES=[]; COMPILER_ENGINE=NODE_JS=SPIDERMONKEY_ENGINE=[]']:
f = open(CONFIG_FILE, 'w')
f.write(settings)
f.close()
output = self.do(command)
if 'LLVM_ROOT' not in settings:
self.assertContained('Error in evaluating %s' % EM_CONFIG, output)
elif 'runner.py' not in ' '.join(command):
self.assertContained('CRITICAL', output) # sanity check should fail
def test_closure_compiler(self):
CLOSURE_FATAL = 'fatal: Closure compiler'
CLOSURE_WARNING = 'does not exist'
# Sanity check should find closure
restore()
output = self.check_working(EMCC)
self.assertNotContained(CLOSURE_FATAL, output)
self.assertNotContained(CLOSURE_WARNING, output)
# Append a bad path for closure, will warn
f = open(CONFIG_FILE, 'a')
f.write('CLOSURE_COMPILER = "/tmp/nowhere/nothingtoseehere/kjadsfkjwelkjsdfkqgas/nonexistent.txt"\n')
f.close()
output = self.check_working(EMCC, CLOSURE_WARNING)
# And if you actually try to use the bad path, will be fatal
f = open(CONFIG_FILE, 'a')
f.write('CLOSURE_COMPILER = "/tmp/nowhere/nothingtoseehere/kjadsfkjwelkjsdfkqgas/nonexistent.txt"\n')
f.close()
output = self.check_working([EMCC, '-O2', '-s', 'ASM_JS=0', '--closure', '1', 'tests/hello_world.cpp'], CLOSURE_FATAL)
# With a working path, all is well
restore()
try_delete('a.out.js')
output = self.check_working([EMCC, '-O2', '-s', 'ASM_JS=0', '--closure', '1', 'tests/hello_world.cpp'], '')
assert os.path.exists('a.out.js'), output
def test_llvm(self):
LLVM_WARNING = 'LLVM version appears incorrect'
restore()
# Clang should report the version number we expect, and emcc should not warn
assert check_clang_version()
output = self.check_working(EMCC)
assert LLVM_WARNING not in output, output
# Fake a different llvm version
restore()
f = open(CONFIG_FILE, 'a')
f.write('LLVM_ROOT = "' + path_from_root('tests', 'fake') + '"')
f.close()
if not os.path.exists(path_from_root('tests', 'fake')):
os.makedirs(path_from_root('tests', 'fake'))
try:
os.environ['EM_IGNORE_SANITY'] = '1'
for x in range(-2, 3):
for y in range(-2, 3):
f = open(path_from_root('tests', 'fake', 'clang'), 'w')
f.write('#!/bin/sh\n')
f.write('echo "clang version %d.%d" 1>&2\n' % (EXPECTED_LLVM_VERSION[0] + x, EXPECTED_LLVM_VERSION[1] + y))
f.close()
shutil.copyfile(path_from_root('tests', 'fake', 'clang'), path_from_root('tests', 'fake', 'clang++'))
os.chmod(path_from_root('tests', 'fake', 'clang'), stat.S_IREAD | stat.S_IWRITE | stat.S_IEXEC)
os.chmod(path_from_root('tests', 'fake', 'clang++'), stat.S_IREAD | stat.S_IWRITE | stat.S_IEXEC)
if x != 0 or y != 0:
output = self.check_working(EMCC, LLVM_WARNING)
else:
output = self.check_working(EMCC)
assert LLVM_WARNING not in output, output
finally:
del os.environ['EM_IGNORE_SANITY']
def test_llvm_fastcomp(self):
assert os.environ.get('EMCC_FAST_COMPILER') != '0', 'must be using fastcomp to test fastcomp'
WARNING = 'fastcomp in use, but LLVM has not been built with the JavaScript backend as a target'
WARNING2 = 'you can fall back to the older (pre-fastcomp) compiler core, although that is not recommended, see https://github.com/kripken/emscripten/wiki/LLVM-Backend'
restore()
# Should see js backend during sanity check
assert check_fastcomp()
output = self.check_working(EMCC)
assert WARNING not in output, output
assert WARNING2 not in output, output
# Fake incorrect llc output, no mention of js backend
restore()
f = open(CONFIG_FILE, 'a')
f.write('LLVM_ROOT = "' + path_from_root('tests', 'fake', 'bin') + '"')
f.close()
#print '1', open(CONFIG_FILE).read()
try_delete(path_from_root('tests', 'fake'))
os.makedirs(path_from_root('tests', 'fake', 'bin'))
f = open(path_from_root('tests', 'fake', 'bin', 'llc'), 'w')
f.write('#!/bin/sh\n')
f.write('echo "llc fake output\nRegistered Targets:\nno j-s backend for you!"')
f.close()
os.chmod(path_from_root('tests', 'fake', 'bin', 'llc'), stat.S_IREAD | stat.S_IWRITE | stat.S_IEXEC)
output = self.check_working(EMCC, WARNING)
output = self.check_working(EMCC, WARNING2)
# fake some more
for fake in ['llvm-link', 'clang', 'clang++', 'llvm-ar', 'opt', 'llvm-as', 'llvm-dis', 'llvm-nm', 'lli']:
open(path_from_root('tests', 'fake', 'bin', fake), 'w').write('.')
try_delete(SANITY_FILE)
output = self.check_working(EMCC, WARNING)
# make sure sanity checks notice there is no source dir with version #
open(path_from_root('tests', 'fake', 'bin', 'llc'), 'w').write('#!/bin/sh\necho "Registered Targets: there IZ a js backend: JavaScript (asm.js, emscripten) backend"')
open(path_from_root('tests', 'fake', 'bin', 'clang++'), 'w').write('#!/bin/sh\necho "clang version %s (blah blah)" >&2\necho "..." >&2\n' % '.'.join(map(str, EXPECTED_LLVM_VERSION)))
os.chmod(path_from_root('tests', 'fake', 'bin', 'llc'), stat.S_IREAD | stat.S_IWRITE | stat.S_IEXEC)
os.chmod(path_from_root('tests', 'fake', 'bin', 'clang++'), stat.S_IREAD | stat.S_IWRITE | stat.S_IEXEC)
try_delete(SANITY_FILE)
output = self.check_working(EMCC, 'did not see a source tree above the LLVM root directory')
VERSION_WARNING = 'Emscripten, llvm and clang versions do not match, this is dangerous'
# add version number
open(path_from_root('tests', 'fake', 'emscripten-version.txt'), 'w').write('waka')
try_delete(SANITY_FILE)
output = self.check_working(EMCC, VERSION_WARNING)
os.makedirs(path_from_root('tests', 'fake', 'tools', 'clang'))
open(path_from_root('tests', 'fake', 'tools', 'clang', 'emscripten-version.txt'), 'w').write(EMSCRIPTEN_VERSION)
try_delete(SANITY_FILE)
output = self.check_working(EMCC, VERSION_WARNING)
open(path_from_root('tests', 'fake', 'emscripten-version.txt'), 'w').write(EMSCRIPTEN_VERSION)
try_delete(SANITY_FILE)
output = self.check_working(EMCC)
assert VERSION_WARNING not in output
open(path_from_root('tests', 'fake', 'tools', 'clang', 'emscripten-version.txt'), 'w').write('waka')
try_delete(SANITY_FILE)
output = self.check_working(EMCC, VERSION_WARNING)
restore()
self.check_working([EMCC, 'tests/hello_world.cpp', '-s', 'INIT_HEAP=1'], '''Compiler settings are incompatible with fastcomp. You can fall back to the older compiler core, although that is not recommended, see https://github.com/kripken/emscripten/wiki/LLVM-Backend''')
def test_node(self):
NODE_WARNING = 'node version appears too old'
NODE_WARNING_2 = 'cannot check node version'
restore()
# Clang should report the version number we expect, and emcc should not warn
assert check_node_version()
output = self.check_working(EMCC)
assert NODE_WARNING not in output, output
# Fake a different node version
restore()
f = open(CONFIG_FILE, 'a')
f.write('NODE_JS = "' + path_from_root('tests', 'fake', 'nodejs') + '"')
f.close()
if not os.path.exists(path_from_root('tests', 'fake')):
os.makedirs(path_from_root('tests', 'fake'))
try:
os.environ['EM_IGNORE_SANITY'] = '1'
for version, succeed in [('v0.7.9', False),
('v0.8.0', True),
('v0.8.1', True),
('v0.10.21-pre', True),
('cheez', False)]:
f = open(path_from_root('tests', 'fake', 'nodejs'), 'w')
f.write('#!/bin/sh\n')
f.write('''if [ $1 = "--version" ]; then
echo "%s"
else
%s $@
fi
''' % (version, NODE_JS))
f.close()
os.chmod(path_from_root('tests', 'fake', 'nodejs'), stat.S_IREAD | stat.S_IWRITE | stat.S_IEXEC)
if not succeed:
if version[0] == 'v':
self.check_working(EMCC, NODE_WARNING)
else:
self.check_working(EMCC, NODE_WARNING_2)
else:
output = self.check_working(EMCC)
assert NODE_WARNING not in output, output
finally:
del os.environ['EM_IGNORE_SANITY']
def test_emcc(self):
SANITY_FAIL_MESSAGE = 'sanity check failed to run'
# emcc should check sanity if no ${EM_CONFIG}_sanity
restore()
time.sleep(0.1)
assert not os.path.exists(SANITY_FILE) # restore is just the settings, not the sanity
output = self.check_working(EMCC)
self.assertContained(SANITY_MESSAGE, output)
assert os.path.exists(SANITY_FILE) # EMCC should have checked sanity successfully
assert mtime(SANITY_FILE) >= mtime(CONFIG_FILE)
assert generate_sanity() == open(SANITY_FILE).read()
self.assertNotContained(SANITY_FAIL_MESSAGE, output)
# emcc run again should not sanity check, because the sanity file is newer
output = self.check_working(EMCC)
self.assertNotContained(SANITY_MESSAGE, output)
self.assertNotContained(SANITY_FAIL_MESSAGE, output)
# correct sanity contents mean we need not check
open(SANITY_FILE, 'w').write(generate_sanity())
output = self.check_working(EMCC)
self.assertNotContained(SANITY_MESSAGE, output)
# incorrect sanity contents mean we *must* check
open(SANITY_FILE, 'w').write('wakawaka')
output = self.check_working(EMCC)
self.assertContained(SANITY_MESSAGE, output)
# but with EMCC_DEBUG=1 we should check
try:
os.environ['EMCC_DEBUG'] = '1'
output = self.check_working(EMCC)
finally:
del os.environ['EMCC_DEBUG']
self.assertContained(SANITY_MESSAGE, output)
output = self.check_working(EMCC)
self.assertNotContained(SANITY_MESSAGE, output)
# also with -v, with or without inputs
output = self.check_working([EMCC, '-v'], SANITY_MESSAGE)
output = self.check_working([EMCC, '-v', path_from_root('tests', 'hello_world.c')], SANITY_MESSAGE)
# Make sure the test runner didn't do anything to the setup
output = self.check_working(EMCC)
self.assertNotContained(SANITY_MESSAGE, output)
self.assertNotContained(SANITY_FAIL_MESSAGE, output)
# emcc should also check sanity if the file is outdated
time.sleep(0.1)
restore()
assert mtime(SANITY_FILE) < mtime(CONFIG_FILE)
output = self.check_working(EMCC)
self.assertContained(SANITY_MESSAGE, output)
assert mtime(SANITY_FILE) >= mtime(CONFIG_FILE)
self.assertNotContained(SANITY_FAIL_MESSAGE, output)
# emcc should be configurable directly from EM_CONFIG without any config file
restore()
config = open(CONFIG_FILE, 'r').read()
os.environ['EM_CONFIG'] = config
wipe()
dirname = tempfile.mkdtemp(prefix='emscripten_test_' + self.__class__.__name__ + '_', dir=TEMP_DIR)
open(os.path.join(dirname, 'main.cpp'), 'w').write('''
#include <stdio.h>
int main() {
printf("hello from emcc with no config file\\n");
return 0;
}
''')
Popen([PYTHON, EMCC, os.path.join(dirname, 'main.cpp'), '-o', os.path.join(dirname, 'a.out.js')]).communicate()
del os.environ['EM_CONFIG']
old_dir = os.getcwd()
try:
os.chdir(dirname)
self.assertContained('hello from emcc with no config file', run_js('a.out.js'))
finally:
os.chdir(old_dir)
shutil.rmtree(dirname)
try_delete(CANONICAL_TEMP_DIR)
def test_emcc_caching(self):
INCLUDING_MESSAGE = 'including X'
BUILDING_MESSAGE = 'building X for cache'
ERASING_MESSAGE = 'clearing cache'
EMCC_CACHE = Cache.dirname
for compiler in [EMCC, EMXX]:
print compiler
restore()
Cache.erase()
assert not os.path.exists(EMCC_CACHE)
try:
os.environ['EMCC_DEBUG'] ='1'
self.working_dir = os.path.join(TEMP_DIR, 'emscripten_temp')
# Building a file that doesn't need cached stuff should not trigger cache generation
output = self.do([compiler, path_from_root('tests', 'hello_world.cpp')])
assert INCLUDING_MESSAGE.replace('X', 'libcextra') not in output
assert BUILDING_MESSAGE.replace('X', 'libcextra') not in output
self.assertContained('hello, world!', run_js('a.out.js'))
try_delete('a.out.js')
basebc_name = os.path.join(TEMP_DIR, 'emscripten_temp', 'emcc-0-basebc.bc')
dcebc_name = os.path.join(TEMP_DIR, 'emscripten_temp', 'emcc-1-linktime.bc')
ll_names = [os.path.join(TEMP_DIR, 'emscripten_temp', 'emcc-X-ll.ll').replace('X', str(x)) for x in range(2,5)]
# Building a file that *does* need something *should* trigger cache generation, but only the first time
for filename, libname in [('hello_libcxx.cpp', 'libcxx')]:
for i in range(3):
print filename, libname, i
self.clear()
try_delete(basebc_name) # we might need to check this file later
try_delete(dcebc_name) # we might need to check this file later
for ll_name in ll_names: try_delete(ll_name)
output = self.do([compiler, '-O' + str(i), '-s', 'RELOOP=0', '--llvm-lto', '0', path_from_root('tests', filename), '--save-bc', 'a.bc'])
#print output
assert INCLUDING_MESSAGE.replace('X', libname) in output
if libname == 'libc':
assert INCLUDING_MESSAGE.replace('X', 'libcxx') not in output # we don't need libcxx in this code
else:
assert INCLUDING_MESSAGE.replace('X', 'libc') in output # libcxx always forces inclusion of libc
assert (BUILDING_MESSAGE.replace('X', libname) in output) == (i == 0), 'Must only build the first time'
self.assertContained('hello, world!', run_js('a.out.js'))
assert os.path.exists(EMCC_CACHE)
assert os.path.exists(os.path.join(EMCC_CACHE, libname + '.bc'))
if libname == 'libcxx':
print os.stat(os.path.join(EMCC_CACHE, libname + '.bc')).st_size, os.stat(basebc_name).st_size, os.stat(dcebc_name).st_size
assert os.stat(os.path.join(EMCC_CACHE, libname + '.bc')).st_size > 1000000, 'libc++ is big'
assert os.stat(basebc_name).st_size > 1000000, 'libc++ is indeed big'
assert os.stat(dcebc_name).st_size < os.stat(basebc_name).st_size*0.666, 'Dead code elimination must remove most of libc++'
# should only have metadata in -O0, not 1 and 2
if i > 0:
ll = None
for ll_name in ll_names:
if os.path.exists(ll_name):
check_call([LLVM_DIS, ll_name, '-o', ll_name + '.ll'])
ll = open(ll_name + '.ll').read()
break
assert ll
print 'metas:', ll.count('\n!')
assert ll.count('\n!') < 25 # a few lines are left even in -O1 and -O2
finally:
del os.environ['EMCC_DEBUG']
restore()
def ensure_cache():
self.do([PYTHON, EMCC, '-O2', path_from_root('tests', 'hello_world.c')])
# Manual cache clearing
ensure_cache()
assert os.path.exists(EMCC_CACHE)
output = self.do([PYTHON, EMCC, '--clear-cache'])
assert ERASING_MESSAGE in output
assert not os.path.exists(EMCC_CACHE)
assert SANITY_MESSAGE in output
# Changing LLVM_ROOT, even without altering .emscripten, clears the cache
ensure_cache()
old = os.environ.get('LLVM')
try:
os.environ['LLVM'] = 'waka'
assert os.path.exists(EMCC_CACHE)
output = self.do([PYTHON, EMCC])
assert ERASING_MESSAGE in output
assert not os.path.exists(EMCC_CACHE)
finally:
if old: os.environ['LLVM'] = old
else: del os.environ['LLVM']
try_delete(CANONICAL_TEMP_DIR)
def test_relooper(self):
assert os.environ.get('EMCC_FAST_COMPILER') is None
try:
os.environ['EMCC_FAST_COMPILER'] = '0'
RELOOPER = Cache.get_path('relooper.js')
restore()
for phase in range(2): # 0: we wipe the relooper dir. 1: we have it, so should just update
if phase == 0: Cache.erase()
try_delete(RELOOPER)
for i in range(4):
print >> sys.stderr, phase, i
opt = min(i, 2)
try_delete('a.out.js')
output = Popen([PYTHON, EMCC, path_from_root('tests', 'hello_world_loop.cpp'), '-O' + str(opt), '-g'],
stdout=PIPE, stderr=PIPE).communicate()
self.assertContained('hello, world!', run_js('a.out.js'))
output = '\n'.join(output)
assert ('bootstrapping relooper succeeded' in output) == (i == 1), 'only bootstrap on first O2: ' + output
assert os.path.exists(RELOOPER) == (i >= 1), 'have relooper on O2: ' + output
src = open('a.out.js').read()
main = src.split('function _main()')[1].split('\n}\n')[0]
assert ('while (1) {' in main or 'while(1){' in main or 'while(1) {' in main or '} while ($' in main or '}while($' in main) == (i >= 1), 'reloop code on O2: ' + main
assert ('switch' not in main) == (i >= 1), 'reloop code on O2: ' + main
finally:
del os.environ['EMCC_FAST_COMPILER']
def test_nostdincxx(self):
restore()
Cache.erase()
for compiler in [EMCC, EMXX]:
print compiler
out, err = Popen([PYTHON, EMCC, path_from_root('tests', 'hello_world.cpp'), '-v'], stdout=PIPE, stderr=PIPE).communicate()
out2, err2 = Popen([PYTHON, EMCC, path_from_root('tests', 'hello_world.cpp'), '-v', '-nostdinc++'], stdout=PIPE, stderr=PIPE).communicate()
assert out == out2
def focus(e):
assert 'search starts here:' in e, e
assert e.count('End of search list.') == 1, e
return e[e.index('search starts here:'):e.index('End of search list.')+20]
err = focus(err)
err2 = focus(err2)
assert err == err2, err + '\n\n\n\n' + err2
def test_emconfig(self):
restore()
(fd, custom_config_filename) = tempfile.mkstemp(prefix='.emscripten_config_')
orig_config = open(CONFIG_FILE, 'r').read()
# Move the ~/.emscripten to a custom location.
tfile = os.fdopen(fd, "w")
tfile.write(orig_config)
tfile.close()
# Make a syntax error in the original config file so that attempting to access it would fail.
open(CONFIG_FILE, 'w').write('asdfasdfasdfasdf\n\'\'\'' + orig_config)
temp_dir = tempfile.mkdtemp(prefix='emscripten_temp_')
os.chdir(temp_dir)
self.do([PYTHON, EMCC, '-O2', '--em-config', custom_config_filename, path_from_root('tests', 'hello_world.c')])
result = run_js('a.out.js')
# Clean up created temp files.
os.remove(custom_config_filename)
os.chdir(path_from_root())
shutil.rmtree(temp_dir)
self.assertContained('hello, world!', result)
Server : Apache/2.4.41 (Ubuntu)