diff --git a/tests/muqsit/preprocessor/PreProcessorTest.php b/tests/muqsit/preprocessor/PreProcessorTest.php
index 8e981f6..6441b2a 100644
--- a/tests/muqsit/preprocessor/PreProcessorTest.php
+++ b/tests/muqsit/preprocessor/PreProcessorTest.php
@@ -5,6 +5,7 @@
 namespace muqsit\preprocessor;
 
 use PHPUnit\Framework\TestCase;
+use pocketmine\utils\Utils;
 use Symfony\Component\Filesystem\Path;
 use function explode;
 use function file_get_contents;
@@ -36,14 +37,18 @@ private function assertDiff(PreProcessor $processor, array $differences) : void{
 	}
 
 	public function testCommentOutMethodCalls() : void{
-		$processor = $this->buildPreProcessorForSample("logger-debug-method-call.php");
-		$processor->commentOut(\Logger::class, "debug");
+		$processor = $this->buildPreProcessorForSample("comment-out-method-call.php");
+		$processor->commentOut(\Logger::class, "debug"); // non-static method
+		$processor->commentOut(Utils::class, "validateCallableSignature"); // static method
 		$this->assertDiff($processor, [
-			[15, "\t\t/* \$this->getLogger()->debug(\"Plugin enabled timestamp: \" . \\time()) */;"],
-			[18, "\t\t/* \$logger->debug(\"Logging from {\$this->getName()}\") */;"],
-			[23, "\t\t/* \$child->debug(\"Hello world\") */;"],
-			[25, "\t\t/* \$this->l1->debug(\"test phpdoc typed property\") */;"],
-			[26, "\t\t/* \$this->l2->debug(\"test native typed property\") */;"]
+			[24, "\t\t/* \$this->getLogger()->debug(\"Plugin enabled timestamp: \" . time()) */;"],
+			[27, "\t\t/* \$logger->debug(\"Logging from {\$this->getName()}\") */;"],
+			[32, "\t\t/* \$child->debug(\"Hello world\") */;"],
+			[34, "\t\t/* \$this->l1->debug(\"test phpdoc typed property\") */;"],
+			[35, "\t\t/* \$this->l2->debug(\"test native typed property\") */;"],
+			[38, "\t\t\$l->info(\"x\"); /* \$l->debug(\"y\") */; \$l->notice(\"z\");"],
+			[45, "\t\t/* \\pocketmine\\utils\\Utils::validateCallableSignature(static fn(\\pocketmine\\player\\Player \$player): bool => true, \$listener) */;"],
+			[54, "\t\t/* \$utils::validateCallableSignature(static fn(\\pocketmine\\entity\\Entity \$entity): bool => true, \$listener) */;"]
 		]);
 	}
 }
\ No newline at end of file
diff --git a/tests/muqsit/preprocessor/samples/comment-out-method-call.php b/tests/muqsit/preprocessor/samples/comment-out-method-call.php
new file mode 100644
index 0000000..dd43ad9
--- /dev/null
+++ b/tests/muqsit/preprocessor/samples/comment-out-method-call.php
@@ -0,0 +1,57 @@
+<?php
+
+declare(strict_types=1);
+
+namespace muqsit\preprocessor;
+
+use Closure;
+use Logger;
+use PrefixedLogger;
+use pocketmine\entity\Entity;
+use pocketmine\player\Player;
+use pocketmine\plugin\PluginBase;
+use pocketmine\utils\Utils;
+use Ramsey\Uuid\Uuid;
+
+final class SampleLoggerDebug extends PluginBase{
+
+	/** @var Logger */
+	private $l1;
+
+	private Logger $l2;
+
+	protected function onEnable() : void{
+		$this->getLogger()->debug("Plugin enabled timestamp: " . time());
+
+		$logger = $this->getServer()->getLogger();
+		$logger->debug("Logging from {$this->getName()}");
+
+		$logger->notice("This isn't a debug message");
+
+		$child = new PrefixedLogger($this->getLogger(), "Prefix");
+		$child->debug("Hello world");
+
+		$this->l1->debug("test phpdoc typed property");
+		$this->l2->debug("test native typed property");
+
+		$l = $this->l1;
+		$l->info("x"); $l->debug("y"); $l->notice("z");
+	}
+
+	/**
+	 * @param Closure(Player) : bool $listener
+	 */
+	public function registerPlayerListener(Closure $listener) : void{
+		Utils::validateCallableSignature(static fn(Player $player) : bool => true, $listener);
+		$listener($this->getServer()->getPlayerByUUID(Uuid::fromString(Uuid::NIL)));
+	}
+
+	/**
+	 * @param Closure(Entity) : bool $listener
+	 */
+	public function registerEntityListener(Closure $listener) : void{
+		$utils = Utils::class;
+		$utils::validateCallableSignature(static fn(Entity $entity) : bool => true, $listener);
+		$listener($this->getServer()->getWorldManager()->findEntity(0));
+	}
+}
\ No newline at end of file
diff --git a/tests/muqsit/preprocessor/samples/logger-debug-method-call.php b/tests/muqsit/preprocessor/samples/logger-debug-method-call.php
deleted file mode 100644
index b43dc88..0000000
--- a/tests/muqsit/preprocessor/samples/logger-debug-method-call.php
+++ /dev/null
@@ -1,28 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-use pocketmine\plugin\PluginBase;
-
-final class SampleLoggerDebug extends PluginBase{
-
-	/** @var Logger */
-	private $l1;
-
-	private Logger $l2;
-
-	protected function onEnable() : void{
-		$this->getLogger()->debug("Plugin enabled timestamp: " . time());
-
-		$logger = $this->getServer()->getLogger();
-		$logger->debug("Logging from {$this->getName()}");
-
-		$logger->notice("This isn't a debug message");
-
-		$child = new PrefixedLogger($this->getLogger(), "Prefix");
-		$child->debug("Hello world");
-
-		$this->l1->debug("test phpdoc typed property");
-		$this->l2->debug("test native typed property");
-	}
-}
\ No newline at end of file