Gain insights into good testing practices in Ruby on Rails. Learn the testing mindset, convert requirements into user stories, and master feature, request, and unit tests for comprehensive coverage.

bullet3.tar.gz

foo-copy

second

challenge1

requests

unit

requestChallenge

featureChallenge

unitChallenge

PassingT1

This course aims to teach you how to write better Rails applications by applying good testing practices. You’ll learn about the reasoning behind testing and the process of applying good testing practices. 

In the first half of the course, you’ll learn about the testing mindset and understand its importance. Next, you’ll learn to turn business requirements into user stories. These user stories will become the basis of the code and tests you’ll write.

Once you understand the reasoning and process, you’ll proceed to write the actual tests. You’ll test what is most important to the end user first. So, the first set of tests you’ll learn to write will be feature tests. Finally, you’ll learn to write request tests and unit tests ensuring end-to-end coverage of our application.

Bulletproof Ruby on Rails Applications

## Defining the test
This test’s goal is to disallow more than 100 characters in the `name` field. Notice how we're starting with the test. We’re describing the behavior we’d like to have, and only then do we implement it


Put the following test in the `spec/models/user_spec.rb` file.

# Defining the test
This test’s goal is to disallow more than 100 characters in the `name` field. Notice how we're starting with the test. We’re describing the behavior we’d like to have, and only then do we implement it


Put the following test in the `spec/models/user_spec.rb` file.

Let’s learn to write a unit test to implement a maximum length constraint.


Unit Test: Maximum Length Constraint

Let’s learn to write a unit test to implement a maximum length constraint.

Before We Start

The Why Behind Testing

The How Behind Testing

Planning

The Feature Layer

The Request Layer

The Unit Layer

Conclusion

Unit Test: Maximum Length Constraint

Defining the test