Book Image

Mastering Application Development with

By : Kevin J. Poorman
Book Image

Mastering Application Development with

By: Kevin J. Poorman

Overview of this book is an extremely powerful, scalable, and secure cloud platform, delivering a complete technology stack, ranging from databases and security to workflow and the user interface. With's cloud platform, you can build any business application and run it on your servers. The book will help you enhance your skillset and develop complex applications using It gets you started with a quick refresher of's development tools and methodologies, and moves to an in-depth discussion of triggers, bulkification, DML order of operations, and trigger frameworks. Next, you will learn to use batchable and schedulable interfaces to process massive amounts of information asynchronously. You will also be introduced to Salesforce Lightning and cover components—including backend (apex) controllers, frontend (JavaScript) controllers, events, and attributes—in detail. Moving on, the book will focus on testing various apex components: what to test, when to write the tests, and—most importantly—how to test. Next, you will develop a changeset and use it to migrate your code from one org to another, and learn what other tools are out there for deploying metadata. You will also use command-line tools to authenticate and access the Rest sObject API and the Bulk sObject API; additionally, you will write a custom Rest endpoint, and learn how to structure a project so that multiple developers can work independently of each other without causing metadata conflicts. Finally, you will take an in-depth look at the overarching best practices for architecture (structure) and engineering (code) applications on the platform.
Table of Contents (16 chapters)
Mastering Application Development with
About the Author
About the Reviewers

Executing your code

After creating test data and calling test.startTest(), we are now left with executing our code. This is where our general testing pattern branches into three subpatterns. Each of these subpatterns does execute the code, but each in their own unique and important way. Of the three, the first subpattern is the easiest to understand and what you're most likely to have run across. I call this types of tests Positive tests because they're based in the positive assumption that your code is working as intended with valid data. The second subpattern is less intuitive, but far more powerful. I call these Negative tests because they test what happens when exceptions occur. Lastly, there are Permissions tests that test how your code functions with different users, roles, and permission sets. Let's take a more detailed look at all three.

Positive tests

Positive tests prove expected behavior. That is, they prove that the code functions as it is intended to when given valid input. Succinctly...