How To Install hspec-discover on Ubuntu 18.04
Introduction
In this tutorial we learn how to install hspec-discover on Ubuntu 18.04.
What is hspec-discover
hspec-discover is:
It is a useful convention to have one spec file for each source file. That way it is straightforward to find the corresponding spec for a given piece of code. But it requires error prone, and neither challenging nor interesting boiler plate code. So it should be automated. Hspec provides a solution for that. It makes creative use of GHC’s support for custom preprocessors. The developer only has to create a test driver that contains a single line.
A complete example is at https://github.com/hspec/hspec-example.
There are three methods to install hspec-discover 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 hspec-discover Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install hspec-discover using apt-get by running the following command:
sudo apt-get -y install hspec-discover
Install hspec-discover Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install hspec-discover using apt by running the following command:
sudo apt -y install hspec-discover
Install hspec-discover 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 hspec-discover using aptitude by running the following command:
sudo aptitude -y install hspec-discover
How To Uninstall hspec-discover on Ubuntu 18.04
To uninstall only the hspec-discover package we can use the following command:
sudo apt-get remove hspec-discover
Uninstall hspec-discover And Its Dependencies
To uninstall hspec-discover and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove hspec-discover
Remove hspec-discover Configurations and Data
To remove hspec-discover configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge hspec-discover
Remove hspec-discover configuration, data, and all of its dependencies
We can use the following command to remove hspec-discover configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge hspec-discover
References
Summary
In this tutorial we learn how to install hspec-discover package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
