API phpunit 9 support

composer.json

@@ -20,12 +20,13 @@
         }
     ],
     "require": {
-        "silverstripe/framework": "^4.0",
+        "php": "^7.3 || ^8.0",
+        "silverstripe/framework": "^4.10",
         "silverstripe/versioned": "^1.0",
         "guzzlehttp/guzzle": "^6.3.3"
     },
     "require-dev": {
-        "sminnee/phpunit": "^5.7",
+        "phpunit/phpunit": "^9.5",
         "squizlabs/php_codesniffer": "^3.0"
     },
     "extra": [],

phpunit.xml.dist

@@ -1,8 +1,10 @@
 <phpunit bootstrap="vendor/silverstripe/framework/tests/bootstrap.php" colors="true">
 
+	<testsuites>
 		<testsuite name="Default">
 			<directory>tests</directory>
 		</testsuite>
+	</testsuites>
 
 	<filter>
 		<whitelist addUncoveredFilesFromWhitelist="true">

tests/Checks/DatabaseCheckTest.php

@@ -10,8 +10,6 @@ use SilverStripe\Security\Member;
 /**
  * Class DatabaseCheckTest
  *
- * @mixin PHPUnit_Framework_TestCase
- *
  * @package environmentcheck
  */
 class DatabaseCheckTest extends SapphireTest

tests/Checks/ExternalURLCheckTest.php

@@ -9,8 +9,6 @@ use SilverStripe\EnvironmentCheck\EnvironmentCheck;
 /**
  * Class ExternalURLCheckTest
  *
- * @mixin PHPUnit_Framework_TestCase
- *
  * @package environmentcheck
  */
 class ExternalURLCheckTest extends SapphireTest

tests/Checks/FileWritableCheckTest.php

@@ -9,8 +9,6 @@ use SilverStripe\Dev\SapphireTest;
 /**
  * Class FileWritableCheckTest
  *
- * @mixin PHPUnit_Framework_TestCase
- *
  * @package environmentcheck
  */
 class FileWritableCheckTest extends SapphireTest

tests/Checks/HasClassCheckTest.php

@@ -9,8 +9,6 @@ use SilverStripe\EnvironmentCheck\EnvironmentCheck;
 /**
  * Class HasClassCheckTest
  *
- * @mixin PHPUnit_Framework_TestCase
- *
  * @package environmentcheck
  */
 class HasClassCheckTest extends SapphireTest

tests/Checks/HasFunctionCheckTest.php

@@ -9,8 +9,6 @@ use SilverStripe\Dev\SapphireTest;
 /**
  * Class HasFunctionCheckTest
  *
- * @mixin PHPUnit_Framework_TestCase
- *
  * @package environmentcheck
  */
 class HasFunctionCheckTest extends SapphireTest

tests/Checks/SessionCheckTest.php

@@ -25,7 +25,7 @@ class SessionCheckTest extends SapphireTest
      *
      * @return void
      */
-    protected function setUp()
+    protected function setUp(): void
     {
         parent::setUp();
         $this->sessionCheck = new SessionCheck('/');

tests/Checks/URLCheckTest.php

@@ -9,8 +9,6 @@ use SilverStripe\Dev\SapphireTest;
 /**
  * Class URLCheckTest
  *
- * @mixin PHPUnit_Framework_TestCase
- *
  * @package environmentcheck
  */
 class URLCheckTest extends SapphireTest

tests/Controllers/DevCheckControllerTest.php

@@ -10,8 +10,6 @@ use SilverStripe\EnvironmentCheck\EnvironmentChecker;
 /**
  * Class DevCheckControllerTest
  *
- * @mixin PHPUnit_Framework_TestCase
- *
  * @package environmentcheck
  */
 class DevCheckControllerTest extends SapphireTest

tests/Controllers/DevHealthControllerTest.php

@@ -10,8 +10,6 @@ use SilverStripe\EnvironmentCheck\EnvironmentChecker;
 /**
  * Class DevHealthControllerTest
  *
- * @mixin PHPUnit_Framework_TestCase
- *
  * @package environmentcheck
  */
 class DevHealthControllerTest extends SapphireTest

tests/EnvironmentCheckerTest.php

@@ -20,7 +20,7 @@ class EnvironmentCheckerTest extends SapphireTest
 {
     protected $usesDatabase = true;
 
-    protected function tearDown()
+    protected function tearDown(): void
     {
         EnvironmentCheckSuite::reset();
         parent::tearDown();
@@ -61,8 +61,8 @@ class EnvironmentCheckerTest extends SapphireTest
         $logger->expects($this->once())
             ->method('log')
             ->withConsecutive(
-                $this->equalTo(LogLevel::WARNING),
+                [$this->equalTo(LogLevel::WARNING)],
-                $this->anything()
+                [$this->anything()]
             );
 
         Injector::inst()->registerService($logger, LoggerInterface::class);