import sys, os
sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "..", "..")))
from comparator.normalizer import Normalizer


def test_ebcdic():
    n = Normalizer()
    assert n.normalize_encoding(b'\xc1\xc2', "EBCDIC") == "AB"


def test_ascii_passthrough():
    assert Normalizer().normalize_encoding(b"hello", "ASCII") == "hello"


def test_comp3():
    assert Normalizer().normalize_comp3(b'\x00\x15\x0C') == "150"

def test_comp3_negative():
    assert Normalizer().normalize_comp3(b'\x15\x0D') == "-150"


def test_date_iso():
    assert Normalizer().normalize_date("20260522") == "2026-05-22"


def test_ir_record():
    n = Normalizer()
    ir = n.to_ir_record("BR-AMT", "15000C", "1500", "EBCDIC", "COMP3", 5, 2, True)
    assert ir.field_name == "BR-AMT"
    assert ir.cobol.decoded_value == "1500"