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52 lines
2.0 KiB
Python
52 lines
2.0 KiB
Python
from django.core.exceptions import ValidationError
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from django.db import models
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from django.test import TestCase
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from .models import DataModel
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class BinaryFieldTests(TestCase):
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binary_data = b'\x00\x46\xFE'
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def test_set_and_retrieve(self):
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data_set = (self.binary_data, bytearray(self.binary_data), memoryview(self.binary_data))
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for bdata in data_set:
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dm = DataModel(data=bdata)
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dm.save()
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dm = DataModel.objects.get(pk=dm.pk)
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self.assertEqual(bytes(dm.data), bytes(bdata))
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# Resave (=update)
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dm.save()
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dm = DataModel.objects.get(pk=dm.pk)
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self.assertEqual(bytes(dm.data), bytes(bdata))
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# Test default value
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self.assertEqual(bytes(dm.short_data), b'\x08')
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def test_max_length(self):
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dm = DataModel(short_data=self.binary_data * 4)
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with self.assertRaises(ValidationError):
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dm.full_clean()
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def test_editable(self):
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field = models.BinaryField()
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self.assertIs(field.editable, False)
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field = models.BinaryField(editable=True)
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self.assertIs(field.editable, True)
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field = models.BinaryField(editable=False)
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self.assertIs(field.editable, False)
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def test_filter(self):
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dm = DataModel.objects.create(data=self.binary_data)
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DataModel.objects.create(data=b'\xef\xbb\xbf')
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self.assertSequenceEqual(DataModel.objects.filter(data=self.binary_data), [dm])
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def test_filter_bytearray(self):
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dm = DataModel.objects.create(data=self.binary_data)
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DataModel.objects.create(data=b'\xef\xbb\xbf')
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self.assertSequenceEqual(DataModel.objects.filter(data=bytearray(self.binary_data)), [dm])
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def test_filter_memoryview(self):
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dm = DataModel.objects.create(data=self.binary_data)
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DataModel.objects.create(data=b'\xef\xbb\xbf')
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self.assertSequenceEqual(DataModel.objects.filter(data=memoryview(self.binary_data)), [dm])
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