90 lines
2.6 KiB
Python
90 lines
2.6 KiB
Python
import os
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import tempfile
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import shutil
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from django.db import models
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from django.core.files.storage import FileSystemStorage
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from django.core.files.base import ContentFile
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# Test for correct behavior of width_field/height_field.
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# Of course, we can't run this without PIL.
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try:
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# Checking for the existence of Image is enough for CPython, but
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# for PyPy, you need to check for the underlying modules
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from PIL import Image, _imaging
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except ImportError:
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Image = None
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# If we have PIL, do these tests
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if Image:
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temp_storage_dir = tempfile.mkdtemp()
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temp_storage = FileSystemStorage(temp_storage_dir)
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class Person(models.Model):
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name = models.CharField(max_length=50)
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mugshot = models.ImageField(storage=temp_storage, upload_to='tests',
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height_field='mug_height',
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width_field='mug_width')
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mug_height = models.PositiveSmallIntegerField()
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mug_width = models.PositiveSmallIntegerField()
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__test__ = {'API_TESTS': """
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>>> image_data = open(os.path.join(os.path.dirname(__file__), "test.png"), 'rb').read()
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>>> p = Person(name="Joe")
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>>> p.mugshot.save("mug", ContentFile(image_data))
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>>> p.mugshot.width
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16
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>>> p.mugshot.height
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16
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>>> p.mug_height
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16
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>>> p.mug_width
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16
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# Bug #9786: Ensure '==' and '!=' work correctly.
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>>> image_data = open(os.path.join(os.path.dirname(__file__), "test1.png"), 'rb').read()
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>>> p1 = Person(name="Bob")
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>>> p1.mugshot.save("mug", ContentFile(image_data))
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>>> p2 = Person.objects.get(name="Joe")
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>>> p.mugshot == p2.mugshot
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True
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>>> p.mugshot != p2.mugshot
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False
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>>> p.mugshot != p1.mugshot
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True
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Bug #9508: Similarly to the previous test, make sure hash() works as expected
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(equal items must hash to the same value).
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>>> hash(p.mugshot) == hash(p2.mugshot)
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True
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# Bug #8175: correctly delete files that have been removed off the file system.
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>>> import os
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>>> p2 = Person(name="Fred")
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>>> p2.mugshot.save("shot", ContentFile(image_data))
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>>> os.remove(p2.mugshot.path)
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>>> p2.delete()
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# Bug #8534: FileField.size should not leave the file open.
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>>> p3 = Person(name="Joan")
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>>> p3.mugshot.save("shot", ContentFile(image_data))
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# Get a "clean" model instance
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>>> p3 = Person.objects.get(name="Joan")
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# It won't have an opened file. This is a bit brittle since it depends on the
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# the internals of FieldFile, but there's no other way of telling if the
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# file's been opened or not.
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>>> hasattr(p3.mugshot, '_file')
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False
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# After asking for the size, the file should still be closed.
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>>> _ = p3.mugshot.size
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>>> hasattr(p3.mugshot, '_file')
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False
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>>> shutil.rmtree(temp_storage_dir)
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"""}
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