# Tests to ensure that sha1dc.sha1 is exactly a drop-in for

# hashlib.sha1 for our needs.

from __future__ import absolute_import

import hashlib

import unittest

import silenttestrunner

try:

    from mercurial.thirdparty import sha1dc

except ImportError:

    sha1dc = None

class hashertestsbase(object):

    def test_basic_hash(self):

        h = self.hasher()

        h.update(b'foo')

        self.assertEqual(

            '0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33', h.hexdigest()

        )

        h.update(b'bar')

        self.assertEqual(

            '8843d7f92416211de9ebb963ff4ce28125932878', h.hexdigest()

        )

    def test_copy_hasher(self):

        h = self.hasher()

        h.update(b'foo')

        h2 = h.copy()

        h.update(b'baz')

        h2.update(b'bar')

        self.assertEqual(

            '21eb6533733a5e4763acacd1d45a60c2e0e404e1', h.hexdigest()

        )

        self.assertEqual(

            '8843d7f92416211de9ebb963ff4ce28125932878', h2.hexdigest()

        )

    def test_init_hasher(self):

        h = self.hasher(b'initial string')

        self.assertEqual(

            b'\xc9y|n\x1f3S\xa4:\xbaJ\xca,\xc1\x1a\x9e\xb8\xd8\xdd\x86',

            h.digest(),

        )

class hashlibtests(unittest.TestCase, hashertestsbase):

    hasher = hashlib.sha1

if sha1dc:

    class sha1dctests(unittest.TestCase, hashertestsbase):

        hasher = sha1dc.sha1

if __name__ == '__main__':

    silenttestrunner.main(__name__)