How To Install elpa-ert-expectations on Ubuntu 18.04

In this tutorial we learn how to install elpa-ert-expectations on Ubuntu 18.04. elpa-ert-expectations is very simple unit test framework for Emacs Lisp

Introduction

In this tutorial we learn how to install elpa-ert-expectations on Ubuntu 18.04.

What is elpa-ert-expectations

elpa-ert-expectations is:

The package provides a very simple unit test framework using ert'. It is thought to be a successor of el-expectations. With Emacs Lisp Mock, el-mock.el’, Emacs Lisp Expectations supports mock and stub (behavior-based testing). The package uses `ert’ feature to display test result, so it is quite easy to understand why a test failed.

There are three methods to install elpa-ert-expectations on Ubuntu 18.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install elpa-ert-expectations Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install elpa-ert-expectations using apt-get by running the following command:

sudo apt-get -y install elpa-ert-expectations

Install elpa-ert-expectations Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install elpa-ert-expectations using apt by running the following command:

sudo apt -y install elpa-ert-expectations

Install elpa-ert-expectations Using aptitude

If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.

sudo aptitude update

After updating apt database, We can install elpa-ert-expectations using aptitude by running the following command:

sudo aptitude -y install elpa-ert-expectations

How To Uninstall elpa-ert-expectations on Ubuntu 18.04

To uninstall only the elpa-ert-expectations package we can use the following command:

sudo apt-get remove elpa-ert-expectations

Uninstall elpa-ert-expectations And Its Dependencies

To uninstall elpa-ert-expectations and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:

sudo apt-get -y autoremove elpa-ert-expectations

Remove elpa-ert-expectations Configurations and Data

To remove elpa-ert-expectations configuration and data from Ubuntu 18.04 we can use the following command:

sudo apt-get -y purge elpa-ert-expectations

Remove elpa-ert-expectations configuration, data, and all of its dependencies

We can use the following command to remove elpa-ert-expectations configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge elpa-ert-expectations

References

Summary

In this tutorial we learn how to install elpa-ert-expectations package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.