What is the correct way to simulate filedata for testing a form?

django, django-file-upload, django-forms

Solution

Ok, a fresh look can be worth a lot. This is my new test_to_python test, this time it works:

def test_to_python(self):
    f = file(self.AUDIOFILE_TEST_ROOT + self.files[0])
    file_data = {'audiofilefield':SimpleUploadedFile(self.files[0],f.read())}
    data = {}
    form = self.TestForm(data,file_data)
    self.assertTrue( form.is_valid() )

Problem

I'm trying to test a self written FormField AudioFileFormField, which checks if a file is an audiofile before storing it. For that i have overwritten the to_python method. Trying to test this FormField i ran into some difficulties. This is my TestCase so far: ``` from django import forms from django.core.files.uploadedfile import SimpleUploadedFile from django.test import TestCase class TestAudioFileFormField(TestCase): """ test the formfield to use for AudioFile Uploads """ class TestForm(forms.Form): audiofilefield = AudioFileFormField() def setUp(self): self.AUDIOFILE_TEST_ROOT = os.path.dirname(__file__) + '/data/' self.files = audiofile_files def test_to_python(self): """ assign some files to a form and validate the form """ f = file(self.AUDIOFILE_TEST_ROOT + self.files[0]) file_data = {'audiofilefield':SimpleUploadedFile( self.files[0],f.read() )} data = {} form = self.TestForm(data,f) form.is_valid() ``` The line form.is_valid() raises an AttributeError: 'file' object has no attribute 'get' When i insert a debug trace right before form.is_valid(), this is what i get in that interactive session: ``` ipdb> form.is_valid() AttributeError: 'file' object has no attribute 'get' ipdb> suf = file_data['audiofilefield'] ipdb> suf <SimpleUploadedFile: invalid_format.mp3 (text/plain)> ipdb> dir(suf) [lots of info here] ipdb> form.is_valid() True ``` What exactly did i change in the interactive session, so that the form validation is working? What would be the correct way to pass the file to SimpleUploadedFile to avoid the AttributeError?

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