diff --git a/tests/DataStorage/Database/DataMapperAbstractTest.php b/tests/DataStorage/Database/DataMapperAbstractTest.php
index 5fc503a7e..2e42bfeee 100644
--- a/tests/DataStorage/Database/DataMapperAbstractTest.php
+++ b/tests/DataStorage/Database/DataMapperAbstractTest.php
@@ -257,8 +257,8 @@ class DataMapperAbstractTest extends \PHPUnit\Framework\TestCase
 
         $found = BaseModelMapper::find('sir');
         self::assertCount(2, $found);
-        self::assertEquals($model2->string, reset($found)->string);
-        self::assertEquals($model3->string, end($found)->string);
+        self::assertEquals($model2->string, \reset($found)->string);
+        self::assertEquals($model3->string, \end($found)->string);
     }
 
     public function testWithConditional() : void
@@ -295,10 +295,10 @@ class DataMapperAbstractTest extends \PHPUnit\Framework\TestCase
 
         $found = BaseModelMapper::withConditional('language', 'de')::getAll();
         self::assertCount(2, $found);
-        self::assertEquals($model1->string, reset($found)->string);
-        self::assertEquals($model2->string, end($found)->string);
-        self::assertEquals('cond1_de', reset($found)->conditional);
-        self::assertEquals('cond2_de', end($found)->conditional);
+        self::assertEquals($model1->string, \reset($found)->string);
+        self::assertEquals($model2->string, \end($found)->string);
+        self::assertEquals('cond1_de', \reset($found)->conditional);
+        self::assertEquals('cond2_de', \end($found)->conditional);
     }
 
     /**
diff --git a/tests/Math/Statistic/AverageTest.php b/tests/Math/Statistic/AverageTest.php
index 83177b1d0..b5cdf83d4 100644
--- a/tests/Math/Statistic/AverageTest.php
+++ b/tests/Math/Statistic/AverageTest.php
@@ -96,7 +96,7 @@ class AverageTest extends \PHPUnit\Framework\TestCase
         ];
 
         $average = [
-            66.626, 66.302, 66.328, 66.352, 66.19, 66.152, 65.764, 65.264, 64.852, 64.288, 63.452, 63.164, 62.626, 61.752, 61.452, 61.352
+            66.626, 66.302, 66.328, 66.352, 66.19, 66.152, 65.764, 65.264, 64.852, 64.288, 63.452, 63.164, 62.626, 61.752, 61.452, 61.352,
         ];
 
         self::assertEqualsWithDelta($average, Average::totalMovingAverage($data, 5), 0.1);