atoum:tldr:102eb

This command is invoking the atoum testing framework with the -ns option followed by a namespace.

Here's the breakdown of each part:

• atoum: This is the command to execute the atoum testing framework. Atoum is a modern and simple PHP testing library used for unit testing.
• -ns: This is a command-line option or flag in atoum. It stands for "namespace" and is used to specify the namespace(s) to be tested by atoum.
• ${namespace}: This is a placeholder indicating that you need to replace it with an actual namespace that you want to test. You should replace ${namespace} with the desired namespace, such as My\App\Tests.

When you execute the command with a specific namespace, atoum will run the tests associated with that namespace and provide you with the corresponding test results and feedback.