Tengo el problema del status code: AssertionError: False is not true : HTTP Status 301, 302, 303, 305, 307 expected but got 200 Main <cod...

Tengo el problema del status code:

AssertionError: False is not true : HTTP Status 301, 302, 303, 305, 307 expected but got 200

Main

if login_form.validate_on_submit():
        username = login_form.username.data
        session['username']=username
        flash('Nombre ingresado exitosamente!')
        return redirect(url_for('index'))

test

def test_hello_post(self):        
        form_fake = {
            'username':'fake',
            'password':'passfake'
        }
        response = self.client.post(url_for('hello', data=form_fake))
        #import pdb; pdb.set_trace()
        self.assertRedirects(response, url_for('index'))

aiudaaa xD