initial steps to modernize the testing infrastructure.

docs/testing.md

@@ -11,8 +11,8 @@ This extension comes with two PHP Unit tests:
 
 Tests can be run most easily via an installation made through CiviCRM Buildkit (https://github.com/civicrm/civicrm-buildkit) by changing into the extension directory and running:
 
-    phpunit4 tests/phpunit/CRM/Stripe/IpnTest.php
-    phpunit4 tests/phpunit/CRM/Stripe/DirectTest.php
+    phpunit6 tests/phpunit/CRM/Stripe/IpnTest.php
+    phpunit6 tests/phpunit/CRM/Stripe/DirectTest.php
 
 ### Katalon Tests
 See the test/katalon folder for instructions on running full web-browser based automation tests.

tests/phpunit/CRM/Stripe/BaseTest.php

@@ -20,7 +20,7 @@ define('STRIPE_PHPUNIT_TEST', 1);
  *
  * @group headless
  */
-class CRM_Stripe_BaseTest extends \PHPUnit_Framework_TestCase implements HeadlessInterface, HookInterface, TransactionalInterface {
+class CRM_Stripe_BaseTest extends \PHPUnit\Framework\TestCase implements HeadlessInterface, HookInterface, TransactionalInterface {
 
   protected $_contributionID;
   protected $_invoiceID = 'in_19WvbKAwDouDdbFCkOnSwAN7';

tests/phpunit/bootstrap.php

@@ -2,8 +2,17 @@
 
 ini_set('memory_limit', '2G');
 ini_set('safe_mode', 0);
+// phpcs:ignore
 eval(cv('php:boot --level=classloader', 'phpcode'));
 
+// Allow autoloading of PHPUnit helper classes in this extension.
+$loader = new \Composer\Autoload\ClassLoader();
+$loader->add('CRM_', __DIR__);
+$loader->add('Civi\\', __DIR__);
+$loader->add('api_', __DIR__);
+$loader->add('api\\', __DIR__);
+$loader->register();
+
 /**
  * Call the "cv" command.
  *
@@ -21,6 +30,11 @@ function cv($cmd, $decode = 'json') {
   $descriptorSpec = array(0 => array("pipe", "r"), 1 => array("pipe", "w"), 2 => STDERR);
   $oldOutput = getenv('CV_OUTPUT');
   putenv("CV_OUTPUT=json");
+
+  // Execute `cv` in the original folder. This is a work-around for
+  // phpunit/codeception, which seem to manipulate PWD.
+  $cmd = sprintf('cd %s; %s', escapeshellarg(getenv('PWD')), $cmd);
+
   $process = proc_open($cmd, $descriptorSpec, $pipes, __DIR__);
   putenv("CV_OUTPUT=$oldOutput");
   fclose($pipes[0]);