# -*- coding: utf-8 -*-
# vim: autoindent shiftwidth=4 expandtab textwidth=120 tabstop=4 softtabstop=4

###############################################################################
# OpenLP - Open Source Lyrics Projection                                      #
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# Copyright (c) 2008-2017 OpenLP Developers                                   #
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# under the terms of the GNU General Public License as published by the Free  #
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"""
Package to test the openlp.core.ui.projector.networkutils package.
"""

from unittest import TestCase

from openlp.core.common import verify_ip_address, md5_hash, qmd5_hash

from tests.resources.projector.data import TEST_PIN, TEST_SALT, TEST_HASH

salt = TEST_SALT
pin = TEST_PIN
test_hash = TEST_HASH
test_non_ascii_string = '이것은 한국어 시험 문자열'
test_non_ascii_hash = 'fc00c7912976f6e9c19099b514ced201'

ip4_loopback = '127.0.0.1'
ip4_local = '192.168.1.1'
ip4_broadcast = '255.255.255.255'
ip4_bad = '192.168.1.256'

ip6_loopback = '::1'
ip6_link_local = 'fe80::223:14ff:fe99:d315'
ip6_bad = 'ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff'


class TestProjectorUtilities(TestCase):
    """
    Validate functions in the projector utilities module
    """
    def test_ip4_loopback_valid(self):
        """
        Test IPv4 loopbackvalid
        """
        # WHEN: Test with a local loopback test
        valid = verify_ip_address(addr=ip4_loopback)

        # THEN: Verify we received True
        assert valid, 'IPv4 loopback address should have been valid'

    def test_ip4_local_valid(self):
        """
        Test IPv4 local valid
        """
        # WHEN: Test with a local loopback test
        valid = verify_ip_address(addr=ip4_local)

        # THEN: Verify we received True
        assert valid, 'IPv4 local address should have been valid'

    def test_ip4_broadcast_valid(self):
        """
        Test IPv4 broadcast valid
        """
        # WHEN: Test with a local loopback test
        valid = verify_ip_address(addr=ip4_broadcast)

        # THEN: Verify we received True
        assert valid, 'IPv4 broadcast address should have been valid'

    def test_ip4_address_invalid(self):
        """
        Test IPv4 address invalid
        """
        # WHEN: Test with a local loopback test
        valid = verify_ip_address(addr=ip4_bad)

        # THEN: Verify we received True
        assert valid is False, 'Bad IPv4 address should not have been valid'

    def test_ip6_loopback_valid(self):
        """
        Test IPv6 loopback valid
        """
        # WHEN: Test IPv6 loopback address
        valid = verify_ip_address(addr=ip6_loopback)

        # THEN: Validate return
        assert valid, 'IPv6 loopback address should have been valid'

    def test_ip6_local_valid(self):
        """
        Test IPv6 link-local valid
        """
        # WHEN: Test IPv6 link-local address
        valid = verify_ip_address(addr=ip6_link_local)

        # THEN: Validate return
        assert valid, 'IPv6 link-local address should have been valid'

    def test_ip6_address_invalid(self):
        """
        Test NetworkUtils IPv6 address invalid
        """
        # WHEN: Given an invalid IPv6 address
        valid = verify_ip_address(addr=ip6_bad)

        # THEN: Validate bad return
        assert valid is False, 'IPv6 bad address should have been invalid'

    def test_md5_hash(self):
        """
        Test MD5 hash from salt+data pass (python)
        """
        # WHEN: Given a known salt+data
        hash_ = md5_hash(salt=salt.encode('utf-8'), data=pin.encode('utf-8'))

        # THEN: Validate return has is same
        assert hash_ == test_hash, 'MD5 should have returned a good hash'

    def test_md5_hash_bad(self):
        """
        Test MD5 hash from salt+data fail (python)
        """
        # WHEN: Given a different salt+hash
        hash_ = md5_hash(salt=pin.encode('utf-8'), data=salt.encode('utf-8'))

        # THEN: return data is different
        assert hash_ is not test_hash, 'MD5 should have returned a bad hash'

    def test_qmd5_hash(self):
        """
        Test MD5 hash from salt+data pass (Qt)
        """
        # WHEN: Given a known salt+data
        hash_ = qmd5_hash(salt=salt.encode('utf-8'), data=pin.encode('utf-8'))

        # THEN: Validate return has is same
        assert hash_ == test_hash, 'Qt-MD5 should have returned a good hash'

    def test_qmd5_hash_bad(self):
        """
        Test MD5 hash from salt+hash fail (Qt)
        """
        # WHEN: Given a different salt+hash
        hash_ = qmd5_hash(salt=pin.encode('utf-8'), data=salt.encode('utf-8'))

        # THEN: return data is different
        assert hash_ is not test_hash, 'Qt-MD5 should have returned a bad hash'

    def test_md5_non_ascii_string(self):
        """
        Test MD5 hash with non-ascii string - bug 1417809
        """
        # WHEN: Non-ascii string is hashed
        hash_ = md5_hash(salt=test_non_ascii_string.encode('utf-8'), data=None)

        # THEN: Valid MD5 hash should be returned
        assert hash_ == test_non_ascii_hash, 'MD5 should have returned a valid hash'

    def test_qmd5_non_ascii_string(self):
        """
        Test MD5 hash with non-ascii string - bug 1417809
        """
        # WHEN: Non-ascii string is hashed
        hash_ = md5_hash(data=test_non_ascii_string.encode('utf-8'))

        # THEN: Valid MD5 hash should be returned
        assert hash_ == test_non_ascii_hash, 'Qt-MD5 should have returned a valid hash'