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Python Django Basics Test Time Django TDD

Larry McGee
Larry McGee
6,023 Points
Posted by Larry McGee
Larry McGee
6,023 Points

Why does TDD test pass in workspace but fail in challenge?

I am re-posting this question and would appreciate some help in understanding how to get a resolution. All 5 tests pass in the workspace, however, when I cut and paste into the challenge I receive a message: "Bummer! Not all tests are passing."

What could cause the tests to fail in the challenge while passing in the workspace?

songs/models.py 
from django.db import models
from django.core.urlresolvers import reverse
# Write your models here
class Performer(models.Model):
    name = models.CharField(max_length=50)

    def __str__(self):
        return '{}'.format(self.name)

class Song(models.Model):
    """
        Songs for karoke
    """
    title = models.CharField(max_length=200)
    artist = models.CharField(max_length=200)
    duration = models.IntegerField()
    performer = models.ForeignKey(Performer, on_delete=models.CASCADE)

    def __str__(self):
        return '{} by {}'.format(self.title, self.artist)
songs/views.py 
from django.http import HttpResponse
from django.shortcuts import render, get_object_or_404
from .models import Performer, Song

def home(request):
    return render(request, 'home.html')

def song_list(request):
    songs = Song.objects.all()
    return render(request, 'songs/song_list.html', {'songs': songs})

def song_detail(request, pk):
    song = get_object_or_404(Song, pk=pk)
    return render(request, 'songs/song_detail.html', {'songs': song})

def performer_detail(request, pk):
    performer = get_object_or_404(Performer, pk=pk)
    songs = Song.objects.filter(performer=performer)
    return render(request, 'songs/performer_detail.html', {'performer': performer})
songs/templates/songs/performer_detail.html 
{% extends 'base.html' %}

{% block title %}{{ performer }}{% endblock %}

{% block content %}
  <h2>{{ performer }}</h2>
  {% for song in performer.song_set.all %}
    {{ song }}
  {% endfor %}
{% endblock %}
Jason Grunill
Jason Grunill
8,603 Points

Hi, I can spot two things that don't look right but just a beginner myself so not posting this as an answer.

  1. Your song_detail function is passing {'songs': song} I think this should be {'song': song}
  2. Your performer_detail function is populating songs but not passing it. However I don't think it should anyway as the loop in the template will only list the songs for that performer. Hope this helps.
Larry McGee
Larry McGee
6,023 Points
Larry McGee
Larry McGee
6,023 Points

Thanks Jason for your comments: My dilemma continues to be that when I run the test in Workspace it passes but only fails in the challenge!

1 Answer

Jason Grunill
Jason Grunill
8,603 Points
Jason Grunill
Jason Grunill
8,603 Points

Hi Larry, I've cracked it when I copied your code in.

  1. Your song_detail function is passing {'songs': song} I think this should be {'song': song}
  2. In your Song model change your field name "duration" to "length"
  3. Passes for me with your code and these two changes.
Larry McGee
Larry McGee
6,023 Points
Larry McGee
Larry McGee
6,023 Points

Thanks Jason for your help. That enabled me to pass the challenge. Interesting that those changes don't pass in Workspace but I can continue to debug that issue on my own.

Thanks again.