Python测试驱动开发 (美)珀西瓦尔(Harry J.W.Percival) 著 著作 下载 pdf 百度网盘 epub 免费 2025 电子版 mobi 在线

本书通过从头开发一个真实的Web应用，介绍了Python测试驱动开发的优势。读者将学会如何在构建应用的每个部分之前编写和运行测试，然后用少的代码通过这些测试。

Prerequisites and Assumptions

Companion Video

Acknowledgments

Part I.The Basics of TDD and Django

1.Getting Django Set Up Using a Functional Test

Obey the Testing Goat！ Do Nothing Until You Have a Test

Getting Django Up and Running

Starting a Git Repository

2.Extending Our Functional Test Using the unittest Module

Using a Functional Test to Scope Out a Minimum Viable App

The Python Standard Library's unittest Module

Implicit waits

Commit

3.Testing a Simple Home Page with Unit Tests

Our First Django App， and Our First Unit Test

Unit Tests， and How They Differ from Functional Tests

Unit Testing in Django

Django's MVC， URLs， and View Functions

At Last！ We Actually Write Some Application Code！

urls.py

Unit Testing a View

The Unit—Test／Code Cycle

4.What Are We Doing with All These Tests？

Programming Is like Pulling a Bucket of Water up from a Well

Using Selenium to Test User Interactions

The "Don't Test Constants" Rule， and Templates to the Rescue

Refactoring to Use a Template

On Refactoring

A Little More of Our Front Page

Recap： The TDD Process

5.Saving User Input

Wiring Up Our Form to Send a POST Request

Processing a POST Request on the Server

Passing Python Variables to Be Rendered in the Template

Three Strikes and Refactor

The Django ORM and Our First Model

Our First Database Migration

The Test Gets Surprisingly Far

A New Field Means a New Migration

Saving the POST to the Database

Redirect After a POST

Better Unit Testing Practice： Each Test Should Test One Thing

Rendering Items in the Template

Creating Our Production Database with migrate

6.Getting to the Minimum Viable Site

Ensuring Test Isolation in Functional Tests

Running lust the Unit Tests

Small Design When Necessary

YAGNI！

REST

Implementing the New Design Using TDD

Iterating Towards the New Design

Testing Views， Templates， and URLs Together with the Django Test Client

A New Test Class

A New URL

A New View Function

A Separate Template for Viewing Lists

Another URL and View for Adding List Items

A Test Class for New List Creation

A URL and View for New List Creation

Removing Now—Redundant Code and Tests

Pointing Our Forms at the New URL

Adjusting Our Models

A Foreign Key Relationship

Adjusting the Rest of the World to Our New Models

Each List Should Have Its Own URL

Capturing Parameters from URLs

Adjusting new_list to the New World

One More View to Handle Adding Items to an Existing List

Beware of Greedy Regular Expressions！

The Last New URL

The Last New View

But How to Use That URL in the Form？

A Final Refactor Using URL includes

Part Ⅱ.Web Development Sine Qua Nons

7.Prettification： Layout and Styling， and What to Test About It

What to Functionally Test About Layout and Style

Pretti Fication： Using a CSS Framework

Django Template Inheritance

Integrating Bootstrap

Rows and Columns

Static Files in Django

Switching to Static Live Server Test Case

Using Bootstrap Components to Improve the Look of the Site

Jumbotron！

Large Inputs

Table Styling

Using Our Own CSS

What We Glossed Over： collectstatic and Other Static Directories

A Few Things That Didn't Make It

8.Testing Deployment Using a Staging Site

TDD and the Danger Areas of Deployment

As Always， Start with a Test

Getting a Domain Name

Manually Provisioning a Server to Host Our Site

Choosing Where to Host Our Site

Spinning Up a Server

User Accounts， SSH， and Privileges

Installing Nginx

Configuring Domains for Staging and Live

Using the FT to Confirm the Domain Works and Nginx Is Running

Deploying Our Code Manually

Adjusting the Database Location

Creating a Virtualenv

Simple Nginx Configuration

Creating the Database with migrate

Getting to a Production—Ready Deployment

Switching to Gunicorn

Getting Nginx to Serve Static Files

Switching to Using Unix Sockets

Switching DEBUG to False and Setting ALLOWED_HOSTS

Using Upstart to Make Sure Gunicorn Starts on Boot

Saving Our Changes： Adding Gunicorn to Our requirements.txt

Automating

"Saving Your Progress"

9.Automating Deployment with Fabric

Breakdown of a Fabric Script for Our Deployment

Trying It Out

Deploying to Live

Nginx and Gunicorn Config Using sed

Git Tag the Release

Further Reading

10.Input Validation and Test Organisation

Validation FT： Preventing Blank Items

Skipping a Test

Splitting Functional Tests out into Many Files

Running a Single Test File

Fleshing Out the FT

Using Model—Layer Validation

Refactoring Unit Tests into Several Files

Unit Testing Model Validation and the self assert Raises Context Manager

A Django Quirk： Model Save Doesn't Run Validation

Surfacing Model Validation Errors in the View

Checking Invalid Input Isn't Saved to the Database

Django Pattern： Processing POST Requests in the Same View as Renders the Form

Refactor： Transferring the new_item Functionality into view_list

Enforang Model Validation in view_list

Refactor： Removing Hardcoded URLs

The {% url %} Template Tag

Using get_absolute_url for Redirects

11.A Simple Form

Moving Validation Logic into a Form

Exploring the Forms API with a Unit Test

Switching to a Django Model Form

Testing and Customising Form Validation

Using the Form in Our Views

Using the Form in a View with a GET Request

A Big Find and Replace

Using the Form in a View That Takes POST Requests

Adapting the Unit Tests for the new_list View

Using the Form in the.View

Using the Form to Display Errors in the Template

Using the Form in the Other View

A Helper Method for Several Short Tests

Using the Form's Own Save Method

12.More Advanced Forms

Another FT for Duplicate Items

Preventing Duplicates at the Model Layer

A Little Digression on Queryset Ordering and String Representations

Rewriting the Old Model Test

Some Integrity Errors Do Show Up on Save

Experimenting with Duplicate Item Validation at the Views Layer

A More Complex Form to Handle Uniqueness Validation

Using the Existing List Item Form in the List View

13.Dipping Our Toes， Very Tentatively， into Java Script

Starting with an FT

Setting Up a Basic Java Script Test Runner

Usingi Query and the Fixtures Div

Building a Java Script Unit Test for Our Desired Functionality

Java Testing in the TDD Cycle

Columbo Says： Onload Boilerplate and Namespacing

A Few Things That Didn't Make It

14.Deploying Our New Code

Staging Deploy

Live Deploy

What to Do If You See a Database Error

Wrap—Up： git tag the New Release

……

Part Ⅲ.More Advanced Topics

Index

Harry J.W.Percival，在PyhonAnywhere LLP工作，并带着全部激情和热忱在优选的演讲、培训和会议中传播测试驱动开发的福音。他持有利物浦大学的计算机科学硕士学位以及剑桥大学的哲学硕士学位。

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