from django.db import connection

from django.db.models import CharField

from django.db.models.functions import SHA512

from django.test import TestCase

from django.test.utils import register_lookup

from ..models import Author

class SHA512Tests(TestCase):

    @classmethod

    def setUpTestData(cls):

        Author.objects.bulk_create(

            [

                Author(alias="John Smith"),

                Author(alias="Jordan Élena"),

                Author(alias="皇帝"),

                Author(alias=""),

                Author(alias=None),

            ]

        )

    def test_basic(self):

        authors = (

            Author.objects.annotate(

                sha512_alias=SHA512("alias"),

            )

            .values_list("sha512_alias", flat=True)

            .order_by("pk")

        )

        self.assertSequenceEqual(

            authors,

            [

                "ed014a19bb67a85f9c8b1d81e04a0e7101725be8627d79d02ca4f3bd803f33cf"

                "3b8fed53e80d2a12c0d0e426824d99d110f0919298a5055efff040a3fc091518",

                "b09c449f3ba49a32ab44754982d4749ac938af293e4af2de28858858080a1611"

                "2b719514b5e48cb6ce54687e843a4b3e69a04cdb2a9dc99c3b99bdee419fa7d0",

                "b554d182e25fb487a3f2b4285bb8672f98956b5369138e681b467d1f079af116"

                "172d88798345a3a7666faf5f35a144c60812d3234dcd35f444624f2faee16857",

                "cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce"

                "47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e",

                "cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce"

                "47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e"

                if connection.features.interprets_empty_strings_as_nulls

                else None,

            ],

        )

    def test_transform(self):

        with register_lookup(CharField, SHA512):

            authors = Author.objects.filter(

                alias__sha512=(

                    "ed014a19bb67a85f9c8b1d81e04a0e7101725be8627d79d02ca4f3bd8"

                    "03f33cf3b8fed53e80d2a12c0d0e426824d99d110f0919298a5055eff"

                    "f040a3fc091518"

                ),

            ).values_list("alias", flat=True)

            self.assertSequenceEqual(authors, ["John Smith"])