import pytest
from isledecomp.cvdump.types import (
    scalar_type_size,
    scalar_type_pointer,
    scalar_type_signed,
)

# These are all the types seen in the cvdump.
# We have char, short, int, long, long long, float, and double all represented
# in both signed and unsigned.
# We can also identify a 4 byte pointer with the T_32 prefix.
# The type T_VOID is used to designate a function's return type.
# T_NOTYPE is specified as the type of "this" for a static function in a class.

# For reference: https://github.com/microsoft/microsoft-pdb/blob/master/include/cvinfo.h

# fmt: off
# Fields are: type_name, size, is_signed, is_pointer
type_check_cases = (
    ("T_32PINT4",      4,  False,  True),
    ("T_32PLONG",      4,  False,  True),
    ("T_32PRCHAR",     4,  False,  True),
    ("T_32PREAL32",    4,  False,  True),
    ("T_32PUCHAR",     4,  False,  True),
    ("T_32PUINT4",     4,  False,  True),
    ("T_32PULONG",     4,  False,  True),
    ("T_32PUSHORT",    4,  False,  True),
    ("T_32PVOID",      4,  False,  True),
    ("T_CHAR",         1,  True,   False),
    ("T_INT4",         4,  True,   False),
    ("T_LONG",         4,  True,   False),
    ("T_QUAD",         8,  True,   False),
    ("T_RCHAR",        1,  True,   False),
    ("T_REAL32",       4,  True,   False),
    ("T_REAL64",       8,  True,   False),
    ("T_SHORT",        2,  True,   False),
    ("T_UCHAR",        1,  False,  False),
    ("T_UINT4",        4,  False,  False),
    ("T_ULONG",        4,  False,  False),
    ("T_UQUAD",        8,  False,  False),
    ("T_USHORT",       2,  False,  False),
    ("T_WCHAR",        2,  False,  False),
)
# fmt: on


@pytest.mark.parametrize("type_name, size, _, __", type_check_cases)
def test_scalar_size(type_name: str, size: int, _, __):
    assert scalar_type_size(type_name) == size


@pytest.mark.parametrize("type_name, _, is_signed, __", type_check_cases)
def test_scalar_signed(type_name: str, _, is_signed: bool, __):
    assert scalar_type_signed(type_name) == is_signed


@pytest.mark.parametrize("type_name, _, __, is_pointer", type_check_cases)
def test_scalar_pointer(type_name: str, _, __, is_pointer: bool):
    assert scalar_type_pointer(type_name) == is_pointer