Why won't phpunit start?

Question

PHP

Preface: composer is installed locally, so installing anything through it is done with a full command. For example:

php composer.phar require --dev phpunit/phpunit ^5.7

I created a folder with the class under test, the tests folder contains the test, run:

phpunit sqrt_class_test.php
-bash: phpunit: command not found

probably a local installation, the command is not registered at the system level, the command is also full:

php composer.phar phpunit tests/sqrt_class_test.php

Answer:

It doesn't work either.
How to run correctly in this case?

Answer 1

php ./vendor/bin/phpunit ...