Assertionerror: b' Working with test classes in Django (TDD)

Question

I’m starting my test studies with Django and I’m getting an error where apparently it shouldn’t, so much so that the description of traceback leaves me quite confused.

I have a class that tests whether the return of my view is compatible with its preset value, something simple that looks like this:

from django.test import TestCase, Client
from django.core.urlresolvers import reverse
...

class TestMinhaView(TestCase):

    def setUp(self):
        self.url = reverse('core:spy')
        self.client = Client()

    def test_get(self):
        response = self.client.get(self.url)
        self.assertEqual(response.status_code, 200)
        self.assertEqual(response.content, 'Dados Corretos!')

Made to test the return of this View:

from django.views import generic
from django.http.response import HttpResponse
...

class MinhaView(generic.View):
    def get(self, request, *args, **kwargs):
        return HttpResponse('Dados Corretos!')

After modeling the classes, it’s time to test! Type in the terminal:

manage.py test

and then he returns to me the curious error in his Traceback:

self.assertEqual(response.content, 'Dados Corretos!')
AssertionError: b'Dados Corretos!' != 'Dados Corretos!'

This b makes me curious. What could it be? Because I can’t find a logical error since the information in the test and functional class is exactly the same.

I thank in advance the patience of those who are willing, and forgiveness if it is of a beginner level. Haha.

Answer 1

Try to put self.assertEqual(response.content, 'Dados Corretos!.decode("utf-8")') or self.assertEqual(response.content.decode("utf-8"), 'Dados Corretos!').

This b in front means that the string is encoded in bytes and not in Unicode characters, so I suggested using the decode.