From e0166937795dd2cc779bdb04765a14245b19f4a7 Mon Sep 17 00:00:00 2001
From: "Dylan K. Taylor" <odigiman@gmail.com>
Date: Thu, 26 Jul 2018 15:17:16 +0100
Subject: [PATCH] Test one extra case for LevelProviderManager

---
 tests/phpunit/level/format/io/LevelProviderManagerTest.php | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tests/phpunit/level/format/io/LevelProviderManagerTest.php b/tests/phpunit/level/format/io/LevelProviderManagerTest.php
index 7661de234..64b620622 100644
--- a/tests/phpunit/level/format/io/LevelProviderManagerTest.php
+++ b/tests/phpunit/level/format/io/LevelProviderManagerTest.php
@@ -44,4 +44,10 @@ class LevelProviderManagerTest extends TestCase{
 
 		LevelProviderManager::addProvider(InterfaceLevelProvider::class);
 	}
+
+	public function testAddWrongClassProvider() : void{
+		$this->expectException(\InvalidArgumentException::class);
+
+		LevelProviderManager::addProvider(LevelProviderManagerTest::class);
+	}
 }