phasm/tests/integration/test_fib.py
Johan B.W. de Vries 2a93d6125e ideas [skip-ci]
2021-04-03 20:40:11 +02:00

86 lines
1.9 KiB
Python

import io
import subprocess
import sys
from tempfile import NamedTemporaryFile
from pywasm import binary
from pywasm import Runtime
from compile import process
def wat2wasm(code_wat):
with NamedTemporaryFile('w+t') as input_fp:
input_fp.write(code_wat)
input_fp.flush()
with NamedTemporaryFile('w+b') as output_fp:
result = subprocess.run(
[
'wat2wasm',
input_fp.name,
'-o',
output_fp.name,
],
check=True,
)
output_fp.seek(0)
return output_fp.read()
class SuiteResult:
def __init__(self):
self.log_int32_list = []
def callback_log_int32(self, store, value):
del store # auto passed by pywasm
self.log_int32_list.append(value)
def make_imports(self):
return {
'console': {
'logInt32': self.callback_log_int32,
}
}
class Suite:
def __init__(self, code_py, test_name):
self.code_py = code_py
self.test_name = test_name
def run_code(self, *args):
"""
Compiles the given python code into wasm and
then runs it
Returned is an object with the results set
"""
code_wat = process(self.code_py, self.test_name)
sys.stderr.write(code_wat)
code_wasm = wat2wasm(code_wat)
module = binary.Module.from_reader(io.BytesIO(code_wasm))
result = SuiteResult()
runtime = Runtime(module, result.make_imports(), {})
result.returned_value = runtime.exec('testEntry', args)
return result
def test_fib():
code_py = """
@external('console')
def logInt32(value: i32) -> None:
...
def testEntry():
logInt32(13 + 13 * 123)
"""
result = Suite(code_py, 'test_fib').run_code()
assert None is result.returned_value
assert [1612] == result.log_int32_list