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from django.db import connection
from django.db.models import CharField
from django.db.models.functions import SHA256
from django.test import TestCase
from django.test.utils import register_lookup
from ..models import Author
class SHA256Tests(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(
sha256_alias=SHA256('alias'),
).values_list('sha256_alias', flat=True).order_by('pk')
self.assertSequenceEqual(
authors,
[
'ef61a579c907bbed674c0dbcbcf7f7af8f851538eef7b8e58c5bee0b8cfdac4a',
'6e4cce20cd83fc7c202f21a8b2452a68509cf24d1c272a045b5e0cfc43f0d94e',
'3ad2039e3ec0c88973ae1c0fce5a3dbafdd5a1627da0a92312c54ebfcf43988e',
'e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855',
'e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855'
if connection.features.interprets_empty_strings_as_nulls else None,
],
)
def test_transform(self):
with register_lookup(CharField, SHA256):
authors = Author.objects.filter(
alias__sha256='ef61a579c907bbed674c0dbcbcf7f7af8f851538eef7b8e58c5bee0b8cfdac4a',
).values_list('alias', flat=True)
self.assertSequenceEqual(authors, ['John Smith'])
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