67 lines
1.8 KiB
Python
67 lines
1.8 KiB
Python
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"""
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Tests for the file storage mechanism
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>>> import tempfile
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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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>>> temp_storage = FileSystemStorage(location=tempfile.gettempdir())
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# Standard file access options are available, and work as expected.
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>>> temp_storage.exists('storage_test')
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False
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>>> file = temp_storage.open('storage_test', 'w')
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>>> file.write('storage contents')
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>>> file.close()
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>>> temp_storage.exists('storage_test')
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True
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>>> file = temp_storage.open('storage_test', 'r')
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>>> file.read()
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'storage contents'
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>>> file.close()
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>>> temp_storage.delete('storage_test')
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>>> temp_storage.exists('storage_test')
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False
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# Files can only be accessed if they're below the specified location.
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>>> temp_storage.exists('..')
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Traceback (most recent call last):
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...
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SuspiciousOperation: Attempted access to '..' denied.
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>>> temp_storage.open('/etc/passwd')
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Traceback (most recent call last):
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...
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SuspiciousOperation: Attempted access to '/etc/passwd' denied.
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# Custom storage systems can be created to customize behavior
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>>> class CustomStorage(FileSystemStorage):
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... def get_available_name(self, name):
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... # Append numbers to duplicate files rather than underscores, like Trac
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...
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... parts = name.split('.')
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... basename, ext = parts[0], parts[1:]
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... number = 2
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...
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... while self.exists(name):
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... name = '.'.join([basename, str(number)] + ext)
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... number += 1
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...
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... return name
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>>> custom_storage = CustomStorage(tempfile.gettempdir())
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>>> first = custom_storage.save('custom_storage', ContentFile('custom contents'))
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>>> first
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u'custom_storage'
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>>> second = custom_storage.save('custom_storage', ContentFile('more contents'))
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>>> second
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u'custom_storage.2'
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>>> custom_storage.delete(first)
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>>> custom_storage.delete(second)
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"""
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