Gain insights into metaprogramming in Elixir. Delve into macros and discover how to elevate your coding skills, creating powerful libraries with concise, efficient code.

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Get introduced to the concept of metaprogramming. Learn how to level up your programming skills by discovering the full potential of the macro system in Elixir. Understand the ins and outs of metaprogramming at a fundamental level and write incredible libraries by doing more with less code.

Metaprogramming in Elixir

## The test suite
Any good library is only as reliable as the __test suite__ behind it. We’ve written our own language features and a couple of essential application libraries in the previous chapters. We even saw how __macros__ let us create an expressive test framework. What we haven’t learned yet is how to test __macros__ themselves and the code generation they perform. 

In this lesson, we'll explore how to test macros so that we can confidently maintain our libraries. We’ll see a few techniques for testing code generation and different test-case strategies for the types of metaprogramming involved.

# The test suite
Any good library is only as reliable as the __test suite__ behind it. We’ve written our own language features and a couple of essential application libraries in the previous chapters. We even saw how __macros__ let us create an expressive test framework. What we haven’t learned yet is how to test __macros__ themselves and the code generation they perform. 

In this lesson, we'll explore how to test macros so that we can confidently maintain our libraries. We’ll see a few techniques for testing code generation and different test-case strategies for the types of metaprogramming involved.

Learn to test macros to maintain our libraries by using different test-case strategies.

Introduction

The Language of Macros

Extending Elixir with Metaprogramming

Advanced Compile-Time Code Generation

Code Generation from Git API

How to Test Macros

Create an HTML Domain-Specific Language

With Great Power Comes Great Responsibility (and Fun!)

Setting Up Your Test Suite

The test suite