Lesson 16 - Testing Basics

LEARN

Week 6

• Lesson 15 - Forms Input
• Lesson 16 - Testing
• Lesson 17 - Test Driven Development

CRUD Design Pattern

• CREATE - make a new record
• READ - get one or more records
• UPDATE - modify an existing record
• DELETE - remove a record

Data Views Design Pattern

• CreateView
• ListView
• DetailView
• UpdateView
• DeleteView

Types of Testing

• Manual testing
• Django tests for CRUD

Setup for Workflow

• Create a To Do List
  • Test
  • Fix
  • Features
  • Improve

Development Loop

• Select one feature
  • Setup automatic test
  • Write code to fix test
  • Pass test
  • Commit changes

BUILD

Running Django from Visual Studio

• Virtual Environment
• launch.json
• runserver
• test

Manual Testing

• Home
• List
• Detail
• Edit
• Add
• Delete

Django TestCase to test database

• Fresh database for testing
• assert
• create test objects (new Superhero)
• setup, teardown

CRUD Test

• List
• Detail
• Edit
• Add
• Delete

Add

Book.objects.create(title='Tale of 2 Cities', author='Charles Dickens')
Book.objects.create(title='Iliad', author='Homer')

List

Book.objects.all()

Detail

b = Book.objects.get(pk=1)
b.title
b.author

Edit

b = Book.objects.get(pk=1)
b.author = 'Chuck Dickens'
b.save()

Demo Code for Book Builder

• Book Builder