test error

[Tim Vogt (Tim Vogt)]

I try to make a test with has an error

any suggestions?

tim

    expected_author = f'{post.author}

                                    ^

SyntaxError: EOL while scanning string literal

----------------------------------------------------------------------

Ran 1 test in 0.000s

FAILED (errors=1)

Destroying test database for alias 'default'...

MacBook-Pro-15-Officerebel:blogapi timvogt$

from django.test import TestCase

from django.contrib.auth.models import User

from .models import Post

class BlogTests(TestCase):

@classmethod

def setUpTestData(cls):

#Create a user

testuser1 = User.objects.create_user(

username='testuser1', password='abc123')

testuser1.save()

# Create a blog post

test_post = Post.objects.create(

author=testuser1, title='Blog title', body='Body content...')

test_post.save()

def test_blog_content(self):

post = Post.objects.get(id=1)

expected_author = f'{post.author}'

expected_title = f'{post.title}'

expected_body = f'{post.body}'

self.assertEquals(expected_author, 'testuser1')

self.assertEquals(expected_title,'Blog title')

self.assertEquals(expected_body, 'Body content ...')

[Tommaso Bellini]

What does mean 'f' ? It is not imported or instanced..what is it?

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[Joel]

He's using literal string interpolation. 

Read: https://www.python.org/dev/peps/pep-0498/

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[Joel]

What is your version of python? f strings were introduced in 3.6

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[Motaz Hejaze]

f'{}' is not supported 

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[Joel Mathew]

Why did you say that? I'm using django 2.2 and f strings are indeed supported.

Sincerely yours,

Joel G Mathew

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[Andréas Kühne]

Hi Joel, 

The fact that you are using Django 2.2 has nothing to do with if f strings are supported. f-strings are a part of the python language. You need to have at least version 3.6 installed to be able to use f-strings. Check your python version by writing : python --version in a command shell. If it's less than 3.6 f strings don't work.

Also regarding how you are writing your tests, you don't need to use an f-string there at all - you can just test:

self.assertEqual(post.author, 'testuser1')

and so on.

Regards,

Andréas

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