DEP Use PHPUnit 11

composer.json

@@ -38,7 +38,7 @@
         "bringyourownideas/silverstripe-maintenance": "^4"
     },
     "require-dev": {
-        "phpunit/phpunit": "^9.6",
+        "phpunit/phpunit": "^11.3",
         "squizlabs/php_codesniffer": "^3",
         "silverstripe/standards": "^1",
         "phpstan/extension-installer": "^1.3"

tests/Extensions/CheckComposerUpdatesExtensionTest.php

@@ -43,7 +43,7 @@ protected function setUp(): void
         $this->task = UpdatePackageInfoTask::create();
 
         // Create a partial mock of the update checker
-        $updateCheckerMock = $this->getMockBuilder(UpdateChecker::class)->setMethods(['checkForUpdates'])->getMock();
+        $updateCheckerMock = $this->getMockBuilder(UpdateChecker::class)->onlyMethods(['checkForUpdates'])->getMock();
         $this->task->setUpdateChecker($updateCheckerMock);
 
         $this->allowedTypes = ['silverstripe-module', 'silverstripe-vendormodule', 'silverstripe-theme'];
@@ -55,7 +55,7 @@ public function testRunPassesPackagesToUpdateChecker()
         $this->task->getUpdateChecker()->expects($this->atLeastOnce())
             ->method('checkForUpdates')
             ->with($this->isInstanceOf(PackageInterface::class), $this->isType('string'))
-            ->will($this->returnValue([]));
+            ->willReturn([]);
 
         $this->runTask();
     }
@@ -67,7 +67,7 @@ public function testOnlyAllowedPackageTypesAreProcessed()
             ->with($this->callback(function ($argument) {
                 return in_array($argument->getType(), $this->allowedTypes);
             }))
-            ->will($this->returnValue([]));
+            ->willReturn([]);
 
         $this->runTask();
     }

tests/UpdateCheckerTest.php

@@ -23,16 +23,22 @@ protected function setUp(): void
 
         // Mock composer and composer loader
         $composer = $this->getMockBuilder(Composer::class)->getMock();
-        $composerLoader = $this->getMockBuilder(ComposerLoader::class)
-            ->disableOriginalConstructor()
-            ->setMethods(['getComposer'])
-            ->getMock();
-        $composerLoader->expects($this->once())->method('getComposer')->will($this->returnValue($composer));
+        $composerLoader = new class ($composer) extends ComposerLoader {
+            private $composer;
+            public function __construct($composer)
+            {
+                $this->composer = $composer;
+            }
+            public function getComposer(): Composer
+            {
+                return $this->composer;
+            }
+        };
         Injector::inst()->registerService($composerLoader, ComposerLoader::class);
 
         // Partially mock UpdateChecker
         $this->updateChecker = $this->getMockBuilder(UpdateChecker::class)
-            ->setMethods(['findLatestPackage'])
+            ->onlyMethods(['findLatestPackage'])
             ->getMock();
     }