# Copyright 2010-2020 The pygit2 contributors
#
# This file is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License, version 2,
# as published by the Free Software Foundation.
#
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# the authors give you unlimited permission to link the compiled
# version of this file into combinations with other programs,
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
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"""Tests for Object ids."""

# Standard Library
from binascii import unhexlify

from pygit2 import Oid
import pytest


HEX = "15b648aec6ed045b5ca6f57f8b7831a8b4757298"
RAW = unhexlify(HEX.encode('ascii'))


def test_raw():
    oid = Oid(raw=RAW)
    assert oid.raw == RAW
    assert str(oid) == HEX

def test_hex():
    oid = Oid(hex=HEX)
    assert oid.raw == RAW
    assert str(oid) == HEX

def test_hex_bytes():
    hex = bytes(HEX, "ascii")
    with pytest.raises(TypeError): Oid(hex=hex)

def test_none():
    with pytest.raises(ValueError): Oid()

def test_both():
    with pytest.raises(ValueError): Oid(raw=RAW, hex=HEX)

def test_long():
    with pytest.raises(ValueError): Oid(raw=RAW + b'a')
    with pytest.raises(ValueError): Oid(hex=HEX + 'a')

def test_cmp():
    oid1 = Oid(raw=RAW)

    # Equal
    oid2 = Oid(hex=HEX)
    assert oid1 == oid2

    # Not equal
    oid2 = Oid(hex="15b648aec6ed045b5ca6f57f8b7831a8b4757299")
    assert oid1 != oid2

    # Other
    assert oid1 < oid2
    assert oid1 <= oid2
    assert not oid1 == oid2
    assert not oid1 > oid2
    assert not oid1 >= oid2

def test_hash():
    s = set()
    s.add(Oid(raw=RAW))
    s.add(Oid(hex=HEX))
    assert len(s) == 1

    s.add(Oid(hex="0000000000000000000000000000000000000000"))
    s.add(Oid(hex="0000000000000000000000000000000000000001"))
    assert len(s) == 3
