How to use AssertIn properly?

Question

Stuck on this problem set. What am I doing wrong? I can't figure out what is the problem.

articles/tests.py

from django.test import TestCase
from .models import Writer


class WriterModelTestCase(TestCase):
    '''Tests for the Writer model'''
    def test_something(self):
        email = Writer.objects.create(name='Josh', email='josh@aol.com', bio='This is a test.')
        self.assertIn('josh@aol.com', email.mailto())

articles/models.py

from django.db import models


class Article(models.Model):
    headline = models.CharField(max_length=255)
    publish_date = models.DateTimeField()
    content = models.TextField()
    writer = models.ForeignKey('Writer')

    def __str__(self):
        return self.headline


class Writer(models.Model):
    name = models.CharField(max_length=255)
    email = models.EmailField()
    bio = models.TextField()

    def __str__(self):
        return self.name

    def mailto(self):
        return '{} <{}>'.format(self.name, self.email)

Answer 1 · 2016-02-16T00:38:56Z

February 16, 2016 12:38am

You code is extremely close. Email to use is the email attribute from the newly created Writer instance. This is referenced as email.email:

from django.test import TestCase
from .models import Writer


class WriterModelTestCase(TestCase):
    '''Tests for the Writer model'''
    def test_something(self):
        email = Writer.objects.create(name='Josh', email='josh@aol.com', bio='This is a test.')
        self.assertIn(email.email, email.mailto())  # <-- changed to 'email.email'

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How to use AssertIn properly?

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