# -*- coding: UTF-8 -*-
#
# Copyright 2010-2019 The pygit2 contributors
#
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# 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
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# General Public License for more details.
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"""Tests for Object ids."""

# Import from the future
from __future__ import absolute_import
from __future__ import unicode_literals

# Import from the Standard Library
from binascii import unhexlify
from sys import version_info

import pytest

# Import from pygit2
from pygit2 import Oid
from . import utils


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


class OidTest(utils.BareRepoTestCase):

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

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

    def test_hex_bytes(self):
        if version_info[0] == 2:
            hex = bytes(HEX)
            oid = Oid(hex=hex)
            assert oid.raw == RAW
            assert str(oid) == HEX
        else:
            hex = bytes(HEX, "ascii")
            with pytest.raises(TypeError): Oid(hex=hex)

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

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

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

    def test_cmp(self):
        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(self):
        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