Django Forms - Can't raise validation error in tests - django

Question

I'm struggling to get my tests to throw a form validation error in Django. This is using standard/default input types.
# forms.py
class NewUserForm(forms.Form):
first_name = floppyforms.CharField(widget=floppyforms.TextInput(attrs={'class': 'form-control input-lg', 'placeholder': 'First Name'})),
last_name = floppyforms.CharField(widget=floppyforms.TextInput(attrs={'class': 'form-control input-lg', 'placeholder': 'Last Name'})),
email = forms.EmailField(),
mobile = floppyforms.CharField(
required=False,
widget=floppyforms.TextInput(attrs={'class': 'form-control input-lg', 'placeholder': 'Mobile number', 'autocomplete': 'false'})),
postcode = floppyforms.CharField(widget=floppyforms.TextInput(attrs={'class': 'form-control input-lg', 'placeholder': 'Postcode'})),
super_balance = floppyforms.CharField(widget=floppyforms.RangeInput(attrs={'class': 'bar', 'type': 'range', 'id': 'rangeinput',
'value': '492500', 'min': '75000', 'max': '1000000',
'step': '5000', }))
# tests.py
class NewUserFormTest(TestCase):
def setUp(self):
self.valid_data = {
'first_name': 'herp',
'last_name': 'derp',
'email': 'herp#derp.com',
'mobile': '0412345678',
'postcode': '00000',
'relationship_status': 'S',
'super_balance': '100000',
'current_super_provider': '49'
}
...
def test_invalid_fields(self):
form = NewUserForm({})
self.assertFalse(form.is_valid()) # correct
data = self.valid_data
data['email'] = 24234 # this field should fail
form = NewUserForm(data)
form.is_valid() # returns True
When I pass a blank dictionary to the initial form. form.errors displays {'super_balance': ['This field is required.']}. This is more confusing because the documentation states that unless explicitly declared then all fields are assumed to be required.
I'm using 1.8.5
Cheers in advance

Answer 1

You need to remove the trailing commas from all the fields in your form.
Instead of
class NewUserForm(forms.Form):
...
email = forms.EmailField(),
...
it should be
class NewUserForm(forms.Form):
...
email = forms.EmailField()
...
At the moment, NewUserForm.email is a tuple, not a field, so any values for that field in the data dictionary are ignored. The only field without the trailing comma is super_balance, which is why it is the only error that appears when you pass a blank dictionary to the form.