How To Install elpa-assess on Ubuntu 18.04

In this tutorial we learn how to install elpa-assess on Ubuntu 18.04. elpa-assess is test support functions for Emacs

Introduction

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

What is elpa-assess

elpa-assess is:

This package provides functions to support ert, the Emacs Regression Test framework. It includes:

  • a set of predicates for comparing strings, buffers and file contents;
  • explainer functions for all predicates giving useful output;
  • macros for creating many temporary buffers at once, and for restoring the buffer list;
  • methods for testing indentation, by comparison or “round-tripping”;
  • methods for testing fontification;

Assess aims to be a stateless as possible, leaving Emacs unchanged whether the tests succeed or fail, with respect to buffers, open files and so on; this helps to keep tests independent from each other. Violations of this will be considered a bug.

Assess aims also to be as noiseless as possible, reducing and suppressing extraneous messages where possible, to leave a clean ert output in batch mode.

There are three methods to install elpa-assess 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-assess 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-assess using apt-get by running the following command:

sudo apt-get -y install elpa-assess

Install elpa-assess Using apt

Update apt database with apt using the following command.

sudo apt update

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

sudo apt -y install elpa-assess

Install elpa-assess 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-assess using aptitude by running the following command:

sudo aptitude -y install elpa-assess

How To Uninstall elpa-assess on Ubuntu 18.04

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

sudo apt-get remove elpa-assess

Uninstall elpa-assess And Its Dependencies

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

sudo apt-get -y autoremove elpa-assess

Remove elpa-assess Configurations and Data

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

sudo apt-get -y purge elpa-assess

Remove elpa-assess configuration, data, and all of its dependencies

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

sudo apt-get -y autoremove --purge elpa-assess

References

Summary

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