PHP7 'phpunit' is not recognized as an internal or external command,

U:\Webpages\thecanadianhosting.co\app>composer test
> phpunit
'phpunit' is not recognized as an internal or external command,
operable program or batch file.
Script phpunit handling the test event returned with error code 1

Solution for PHP7 with Composer

composer require --dev phpunit/phpunit ^7

Solution for PHP7 without Composer

Downloads https://phar.phpunit.de/phpunit-7.phar

Save as "phpunit"

Run as ./phpunit

Hard solution

If the above don't work and you have recently upgraded from PHP5 to PHP7, the best solution in my opinion is to delete your composer.lock file, update your composer.json to have phpunit 7, then run composer install again for a fresh vendor install to the latest.

More problems after upgrade

U:\app>composer test
> phpunit

Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in U:\app\tests\Functional\BaseTestCase.php on line 16

Error: Class 'PHPUnit_Framework_TestCase' not found in U:\app\tests\Functional\BaseTestCase.php on line 16

Solution

After updating phpunit to version 6 or greater released on 2017-02-03 you will need to rename \PHPUnit_Framework_TestCase to \PHPUnit\Framework\TestCase

Possible error: Undefined index: HTTP_HOST

There were 6 errors:

1) Tests\Functional\CreateAccountTest::testLoginView
Script phpunit handling the test event returned with error code 2
Undefined index: HTTP_HOST

(...)

Solution

Add php server name in phpunit.xml like so :