Update README.md

[MikeiLL]

Disambiguate location of environment variable for other newbies.

[MikeiLL]

I am still confused about this, man.

1. I have phpunit.xml.dist in the top level dir of this repository clone, next to my-plugin.
2. There is no phpunit.xml file in my-plugin.
3. PHPUNIT_TEST_DIR: "/var/www/html/wp-content/plugins/my-plugin"
4. phpunit.xml.dist

   <phpunit
   bootstrap="./my-plugin/tests/bootstrap.php"
   backupGlobals="false"
   colors="true"
   convertErrorsToExceptions="true"
   convertNoticesToExceptions="true"
   convertWarningsToExceptions="true"
   >
   <testsuites>
       <testsuite>
           <directory prefix="test-" suffix=".php">./my-plugin/tests/</directory>
       </testsuite>
   </testsuites>
   </phpunit>

   5. my-plugin/tests/bootstrap.php

      
      <?php
      /**
      * PHPUnit bootstrap file
      *
      * @package My Plugin
      */

$_tests_dir = getenv( 'WP_TESTS_DIR' ); if ( ! $_tests_dir ) { $_tests_dir = '/tmp/wordpress-tests-lib'; }

// Give access to tests_add_filter() function. require_once $_tests_dir . '/includes/functions.php';

/**

• Manually load the plugin being tested. */ function _manually_load_plugin() { require dirname( dirname( FILE ) ) . '/my-plugin.php'; } tests_add_filter( 'muplugins_loaded', '_manually_load_plugin' );

// Start up the WP testing environment. require $_tests_dir . '/includes/bootstrap.php';

I think the README in this awesome repo could guide newbies like me a little further and would be honored if I can help.

[chriszarate]

Thanks, I'll merge this PR and also think about ways to improve the docs.

As for your testing issue, I intended your plugin code to live at the root of your plugin or theme repo. (Or, in other words, take docker-compose.yml and drop it into the root of your plugin/theme repo.)

That said, there's nothing here incompatible with plugin code living in a subdirectory. I just followed your instructions and replicated your structure on a branch of this repo:

https://github.com/chriszarate/docker-compose-wordpress/tree/subdir

Everything works fine and the docker-compose exec wordpress tests command works as expected.

[MikeiLL]

All works as expected for me as well. I am hoping I can help document the how-to of doing it this way. Mainly still trying to wrap my head around how it works. Thank you.