from django.db import connection

from django.db.models import CharField

from django.db.models.functions import SHA384

from django.test import TestCase

from django.test.utils import register_lookup

from ..models import Author

class SHA384Tests(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(

                sha384_alias=SHA384("alias"),

            )

            .values_list("sha384_alias", flat=True)

            .order_by("pk")

        )

        self.assertSequenceEqual(

            authors,

            [

                "9df976bfbcf96c66fbe5cba866cd4deaa8248806f15b69c4010a404112906e4ca7b57e"

                "53b9967b80d77d4f5c2982cbc8",

                "72202c8005492016cc670219cce82d47d6d2d4273464c742ab5811d691b1e82a748954"

                "9e3a73ffa119694f90678ba2e3",

                "eda87fae41e59692c36c49e43279c8111a00d79122a282a944e8ba9a403218f049a483"

                "26676a43c7ba378621175853b0",

                "38b060a751ac96384cd9327eb1b1e36a21fdb71114be07434c0cc7bf63f6e1da274ede"

                "bfe76f65fbd51ad2f14898b95b",

                "38b060a751ac96384cd9327eb1b1e36a21fdb71114be07434c0cc7bf63f6e1da274ede"

                "bfe76f65fbd51ad2f14898b95b"

                if connection.features.interprets_empty_strings_as_nulls

                else None,

            ],

        )

    def test_transform(self):

        with register_lookup(CharField, SHA384):

            authors = Author.objects.filter(

                alias__sha384=(

                    "9df976bfbcf96c66fbe5cba866cd4deaa8248806f15b69c4010a404112906e4ca7"

                    "b57e53b9967b80d77d4f5c2982cbc8"

                ),

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

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