Ensuring Elixir Application Performance with Testing and ExUnit

Learn about the testing of elixir's concepts and tools.

Intermediate

91 Lessons

15h

Certificate of Completion

Learn about the testing of elixir's concepts and tools.

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Explanations

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Explanations

This course includes

63 Playgrounds

29 Quizzes

This course includes

63 Playgrounds

29 Quizzes

Course Overview

Testing is an essential part of the software development life cycle. A good automated testing suite streamlines feedback, allowing rapid creation and tight control over specific application components. This course is a comprehensive introduction to testing Elixir applications with ExUnit. You’ll start with a review of unit testing principles before diving into writing tests with the ExUnit. You’ll build a comprehensive suite of unit tests before moving on to more advanced testing, including integration, en...Show More

What You'll Learn

Learn about unit and integration testing

Learn about the testing of OTP

Understand the EXUnit

Understand the property-based testing and role of generators in it

Learn about the testing of ecto schemas and ecto queries

What You'll Learn

Learn about unit and integration testing

Course Content

Getting Started

Who Should Take This Course, and Why?

Course Content, and Code

Unit Tests

Introduction to Unit Tests

Our First Test The Anatomy of a Test Organizing Our Tests using Describe Organizing Our Tests using Setup Blocks Creating Comprehensive Test Coverage List Comprehensions Further Usage of List Comprehension for Test Coverage Quiz on Basics of ExUnit Error Cases Testing Pure Functions Refactoring Toward Pure Functions Isolating Code Finer Control over Dependency Injection Quiz on Unit Testing Skills

Integration and End-to-End Tests

Introduction to Integration Tests Testing Against Real External Dependencies Dependency Doubles Behaviors Test Doubles: Stubs, Mocks, and Fakes Creating Stubs Creating Mocks Stubbing Entire Interfaces Quiz on Integration Testing I Improving Performance at Compile Time The Hidden Benefits of Dependency Doubles Testing the Actual Interaction with Services Building an Ad-hoc HTTP Server Building New Test Servers Using Bypass Recording Requests with Cassettes Comparing Cassettes Final Remarks on Testing External Services End-to-end Tests Quiz on Integration Testing II

Testing OTP

GenServer Isolating a Functional Core Controlling the Life Cycle of OTP Processes in Tests Testing Periodic Actions Black Box model in Testing Periodic Actions Singleton Resources Testing Resiliency Supervision Trees

Testing Ecto Schemas

Introduction to Ecto Testing Schema through Ecto Changesets Refactoring Tests for Added Safety Refactoring Tests to Be Self-updating Extensions to Creating a Self-Updating Test Creating a SchemaCase for Shared Test Code Data Validation Adding Database Interactions Application Integration with Database Schema Integration with Database Testing an Ecto Schema Testing Schema Integrations with Database Sandbox Mode

Testing Ecto Queries

6 Lessons

Testing Phoenix

12 Lessons

Property-Based Testing

16 Lessons

Course Author

Trusted by 1.4 million developers working at companies

Anthony Walker

@_webarchitect_

Emma Bostian 🐞

@EmmaBostian

Evan Dunbar

ML Engineer

Carlos Matias La Borde

Software Developer

Souvik Kundu

Front-end Developer

Vinay Krishnaiah

Software Developer

Eric Downs

Musician/Entrepeneur

Kenan Eyvazov

DevOps Engineer

Anthony Walker

@_webarchitect_

Emma Bostian 🐞

@EmmaBostian

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