Start rector set for 5.2

config/rector/cakephp52.php

@@ -0,0 +1,9 @@
+<?php
+declare(strict_types=1);
+
+use Cake\Upgrade\Rector\Set\CakePHPSetList;
+use Rector\Config\RectorConfig;
+
+return static function (RectorConfig $rectorConfig): void {
+    $rectorConfig->sets([CakePHPSetList::CAKEPHP_52]);
+};

config/rector/sets/cakephp52.php

@@ -0,0 +1,13 @@
+<?php
+declare(strict_types=1);
+
+use Rector\Config\RectorConfig;
+use Rector\Renaming\Rector\MethodCall\RenameMethodRector;
+use Rector\Renaming\ValueObject\MethodCallRename;
+
+# @see https://book.cakephp.org/5/en/appendices/5-2-migration-guide.html
+return static function (RectorConfig $rectorConfig): void {
+    $rectorConfig->ruleWithConfiguration(RenameMethodRector::class, [
+        new MethodCallRename('Cake\Console\Arguments', 'getMultipleOption', 'getArrayOption'),
+    ]);
+};

src/Rector/Set/CakePHPSetList.php

@@ -77,6 +77,11 @@ final class CakePHPSetList implements SetListInterface
      */
     public const CAKEPHP_51 = __DIR__ . '/../../../config/rector/sets/cakephp51.php';
 
+    /**
+     * @var string
+     */
+    public const CAKEPHP_52 = __DIR__ . '/../../../config/rector/sets/cakephp52.php';
+
     /**
      * @var string
      */

tests/TestCase/Command/RectorCommandTest.php

@@ -98,4 +98,11 @@ public function testApply51()
         $this->exec('upgrade rector --rules cakephp51 ' . TEST_APP);
         $this->assertTestAppUpgraded();
     }
+
+    public function testApply52()
+    {
+        $this->setupTestApp(__FUNCTION__);
+        $this->exec('upgrade rector --rules cakephp52 ' . TEST_APP);
+        $this->assertTestAppUpgraded();
+    }
 }

tests/test_apps/original/RectorCommand-testApply52/src/SomeTest.php

@@ -0,0 +1,15 @@
+<?php
+declare(strict_types=1);
+
+namespace MyPlugin;
+
+use Cake\Console\Arguments;
+
+class SomeTest extends TestCase
+{
+    public function testRenames(): void
+    {
+        $args = new Arguments([], ['a' => [1, 2]], []);
+        $option = $args->getMultipleOption('a');
+    }
+}

tests/test_apps/upgraded/RectorCommand-testApply52/src/SomeTest.php

@@ -0,0 +1,15 @@
+<?php
+declare(strict_types=1);
+
+namespace MyPlugin;
+
+use Cake\Console\Arguments;
+
+class SomeTest extends TestCase
+{
+    public function testRenames(): void
+    {
+        $args = new Arguments([], ['a' => [1, 2]], []);
+        $option = $args->getArrayOption('a');
+    }
+}