phasm/tests/integration/test_stdlib_alloc.py
2022-08-06 12:43:46 +02:00

111 lines
2.7 KiB
Python

import sys
import pytest
import wasm3
from phasm.compiler import phasm_compile
from phasm.parser import phasm_parse
from .helpers import DASHES, wat2wasm, _dump_memory, _write_numbered_lines
def setup_interpreter(code_phasm):
phasm_module = phasm_parse(code_phasm)
wasm_module = phasm_compile(phasm_module)
code_wat = wasm_module.to_wat()
sys.stderr.write(f'{DASHES} Assembly {DASHES}\n')
_write_numbered_lines(code_wat)
code_wasm = wat2wasm(code_wat)
env = wasm3.Environment()
mod = env.parse_module(code_wasm)
rtime = env.new_runtime(1024 * 1024)
rtime.load(mod)
return rtime
@pytest.mark.integration_test
def test___init__():
code_py = """
@exported
def testEntry() -> u8:
return 13
"""
rtime = setup_interpreter(code_py)
for idx in range(128):
rtime.get_memory(0)[idx] = idx
sys.stderr.write(f'{DASHES} Memory (pre run) {DASHES}\n')
_dump_memory(rtime.get_memory(0))
rtime.find_function('stdlib.alloc.__init__')()
sys.stderr.write(f'{DASHES} Memory (pre run) {DASHES}\n')
_dump_memory(rtime.get_memory(0))
memory = rtime.get_memory(0).tobytes()
assert (
b'\xC0\xA1\x00\x00'
b'\x00\x00\x00\x00'
b'\x00\x00\x00\x00'
b'\x10\x00\x00\x00'
b'\x10\x11\x12\x13' # Untouched because unused
) == memory[0:20]
@pytest.mark.integration_test
def test___alloc___no_init():
code_py = """
@exported
def testEntry() -> u8:
return 13
"""
rtime = setup_interpreter(code_py)
for idx in range(128):
rtime.get_memory(0)[idx] = idx
sys.stderr.write(f'{DASHES} Memory (pre run) {DASHES}\n')
_dump_memory(rtime.get_memory(0))
with pytest.raises(RuntimeError, match='unreachable executed'):
rtime.find_function('stdlib.alloc.__alloc__')(32)
@pytest.mark.integration_test
def test___alloc___ok():
code_py = """
@exported
def testEntry() -> u8:
return 13
"""
rtime = setup_interpreter(code_py)
for idx in range(128):
rtime.get_memory(0)[idx] = idx
sys.stderr.write(f'{DASHES} Memory (pre run) {DASHES}\n')
_dump_memory(rtime.get_memory(0))
rtime.find_function('stdlib.alloc.__init__')()
offset0 = rtime.find_function('stdlib.alloc.__alloc__')(32)
offset1 = rtime.find_function('stdlib.alloc.__alloc__')(32)
offset2 = rtime.find_function('stdlib.alloc.__alloc__')(32)
sys.stderr.write(f'{DASHES} Memory (pre run) {DASHES}\n')
_dump_memory(rtime.get_memory(0))
memory = rtime.get_memory(0).tobytes()
assert b'\xC0\xA1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' == memory[0:12]
assert 0x14 == offset0
assert 0x38 == offset1
assert 0x5C == offset2