How to create test for UserProfile form in django

Question

I'm new to Django and I'm nor sure what I'm doing wrong. I'm trying to run tests for my form "UserProfileForm" and the test fails all time and I don't know why. Can anyone help?

this is my forms.py

from .models import UserProfile
from dobwidget import DateOfBirthWidget


class UserProfileForm(forms.ModelForm):

    class Meta:
        model = UserProfile
        fields = [
            'profile_img',
            'subscribe',
            'bio',
            'dob',
            'telephone',
            'contact_by_phone',
            'contact_by_email'
            ]
        widgets = {
            'dob': DateOfBirthWidget(),
        }

this is my models.py

from django.contrib.auth.models import User



class UserProfile(models.Model):


    user = models.OneToOneField(User, on_delete=models.CASCADE)

    profile_img = models.ImageField(upload_to='images', default="images/default_profile.png")
    subscribe = models.BooleanField(blank=True, default=False)
    bio = models.TextField(blank=True)
    dob = models.DateField(max_length=8, null=True, blank=True)
    telephone = models.CharField(max_length=20, null=True, blank=True)
    contact_by_phone = models.BooleanField(blank=True, default=False)
    contact_by_email = models.BooleanField(blank=True, default=False)


    def __str__(self):
        return self.user.username 

And this is the test that I'm trying to run

from django.test import TestCase
from .forms import UserProfileForm



class TestUserProfileForm(TestCase):


    def test_can_create_a_profile(self):
        valid_data = {
            'profile_img':"images/perfil.jpg", 
            'subscribe':False, 
            'bio':'asdjklsad asdkj;s', 
            'dob':'2019-03-03',
            'telephone' : '12324',
            'contact_by_phone' : True,
            'contact_by_email' : True,
        }
        form = UserProfileForm(data=valid_data)
        self.assertTrue(form.is_valid())