"""Test for siphashc module."""
import unittest
from siphashc import siphash


class TestSiphashC(unittest.TestCase):
    """Test for siphashc module."""

    def test_hash(self):
        """Test simple hashing."""
        result = siphash('sixteencharstrng', 'i need a hash of this')
        self.assertEqual(10796923698683394048, result)

        result = siphash('0123456789ABCDEF', 'a')
        self.assertEqual(12398370950267227270, result)

    def test_errors(self):
        """Test error handling."""
        with self.assertRaises(ValueError):
            siphash('not long enough', 'a')
        with self.assertRaises(ValueError):
            siphash('toooooooooooooooooooooooo long', 'a')
        with self.assertRaises(ValueError):
            siphash('', 'a')

    def test_reference_vectors(self):
        """Test reference vectors."""
        vectors = [
            0x726fdb47dd0e0e31, 0x74f839c593dc67fd, 0x0d6c8009d9a94f5a,
            0x85676696d7fb7e2d, 0xcf2794e0277187b7, 0x18765564cd99a68d,
            0xcbc9466e58fee3ce, 0xab0200f58b01d137, 0x93f5f5799a932462,
            0x9e0082df0ba9e4b0, 0x7a5dbbc594ddb9f3, 0xf4b32f46226bada7,
            0x751e8fbc860ee5fb, 0x14ea5627c0843d90, 0xf723ca908e7af2ee,
            0xa129ca6149be45e5, 0x3f2acc7f57c29bdb, 0x699ae9f52cbe4794,
            0x4bc1b3f0968dd39c, 0xbb6dc91da77961bd, 0xbed65cf21aa2ee98,
            0xd0f2cbb02e3b67c7, 0x93536795e3a33e88, 0xa80c038ccd5ccec8,
            0xb8ad50c6f649af94, 0xbce192de8a85b8ea, 0x17d835b85bbb15f3,
            0x2f2e6163076bcfad, 0xde4daaaca71dc9a5, 0xa6a2506687956571,
            0xad87a3535c49ef28, 0x32d892fad841c342, 0x7127512f72f27cce,
            0xa7f32346f95978e3, 0x12e0b01abb051238, 0x15e034d40fa197ae,
            0x314dffbe0815a3b4, 0x027990f029623981, 0xcadcd4e59ef40c4d,
            0x9abfd8766a33735c, 0x0e3ea96b5304a7d0, 0xad0c42d6fc585992,
            0x187306c89bc215a9, 0xd4a60abcf3792b95, 0xf935451de4f21df2,
            0xa9538f0419755787, 0xdb9acddff56ca510, 0xd06c98cd5c0975eb,
            0xe612a3cb9ecba951, 0xc766e62cfcadaf96, 0xee64435a9752fe72,
            0xa192d576b245165a, 0x0a8787bf8ecb74b2, 0x81b3e73d20b49b6f,
            0x7fa8220ba3b2ecea, 0x245731c13ca42499, 0xb78dbfaf3a8d83bd,
            0xea1ad565322a1a0b, 0x60e61c23a3795013, 0x6606d7e446282b93,
            0x6ca4ecb15c5f91e1, 0x9f626da15c9625f3, 0xe51b38608ef25f57,
            0x958a324ceb064572
        ]
        k = '\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f'
        message = ''
        for i in range(64):
            self.assertEqual(siphash(k, message), vectors[i])
            message += chr(i)
