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import os
from scripts.test import shared
from . import utils
class WebLimitations(utils.BinaryenTestCase):
def test_many_params(self):
"""Test that we warn on large numbers of parameters, which Web VMs
disallow."""
params = '(param i32) ' * 1001
module = '''
(module
(func $foo %s
)
)
''' % params
p = shared.run_process(shared.WASM_OPT + ['-o', os.devnull],
input=module, capture_output=True)
self.assertIn('Some VMs may not accept this binary because it has a large number of parameters in function foo.',
p.stderr)
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