phasm/tests/integration/test_lang/test_builtins.py
Johan B.W. de Vries c8009403c4 Separates out TypeVariable and constraints
They look a lot like placeholders, but they exist before
the typing system takes place. And there's a (much smaller)
context to deal with.

For now, removes Placeholders in user function definitions
as they were not implemented.

Adds signature to function to try to get them closer to
type class methods. Already seeing some benefit in the
constraint generator.

Stricter zipping for safety.
2025-04-27 15:28:08 +02:00

62 lines
1.3 KiB
Python

import pytest
from ..helpers import Suite
@pytest.mark.integration_test
def test_foldl_1():
code_py = """
def u8_or(l: u8, r: u8) -> u8:
return l | r
@exported
def testEntry(b: bytes) -> u8:
return foldl(u8_or, 128, b)
"""
suite = Suite(code_py)
result = suite.run_code(b'')
assert 128 == result.returned_value
result = suite.run_code(b'\x80')
assert 128 == result.returned_value
result = suite.run_code(b'\x80\x40')
assert 192 == result.returned_value
result = suite.run_code(b'\x80\x40\x20\x10')
assert 240 == result.returned_value
result = suite.run_code(b'\x80\x40\x20\x10\x08\x04\x02\x01')
assert 255 == result.returned_value
@pytest.mark.integration_test
def test_foldl_2():
code_py = """
def xor(l: u8, r: u8) -> u8:
return l ^ r
@exported
def testEntry(a: bytes, b: bytes) -> u8:
return foldl(xor, 0, a) ^ foldl(xor, 0, b)
"""
suite = Suite(code_py)
result = suite.run_code(b'\x55\x0F', b'\x33\x80')
assert 233 == result.returned_value
@pytest.mark.integration_test
def test_foldl_3():
code_py = """
def xor(l: u32, r: u8) -> u32:
return l ^ u32(r)
@exported
def testEntry(a: bytes) -> u32:
return foldl(xor, 0, a)
"""
suite = Suite(code_py)
result = suite.run_code(b'\x55\x0F\x33\x80')
assert 233 == result.returned_value