diff --git a/src/Utilities/Miscellaneous.php b/src/Utilities/Miscellaneous.php
index 7dd7e61..cdc1ef7 100644
--- a/src/Utilities/Miscellaneous.php
+++ b/src/Utilities/Miscellaneous.php
@@ -467,14 +467,14 @@ class Miscellaneous
         }
 
         /*
-         * First step: replace strings, simple operation with strings
+         * 1st step: replace strings, simple operation with strings
          */
         if ($bothAreStrings) {
             $effect = str_replace($search, $replacement, $subject);
         }
 
         /*
-         * Second step: replace with regular expressions.
+         * 2nd step: replace with regular expressions.
          * Attention. Searched and replacement value should be the same type: strings or arrays.
          */
         if ($effect === $subject && ($bothAreStrings || $bothAreArrays)) {
@@ -492,7 +492,7 @@ class Miscellaneous
         }
 
         /*
-         * Third step: complex replace of the replacement defined as an array.
+         * 3rd step: complex replace of the replacement defined as an array.
          * It may be useful when you want to search for a one string and replace the string with multiple values.
          */
         if ($effect === $subject && $searchIsString && $replacementIsArray) {
diff --git a/tests/Utilities/MiscellaneousTest.php b/tests/Utilities/MiscellaneousTest.php
index c2ed2bb..70c36c7 100644
--- a/tests/Utilities/MiscellaneousTest.php
+++ b/tests/Utilities/MiscellaneousTest.php
@@ -29,9 +29,6 @@ class MiscellaneousTest extends BaseTestCase
     private $stringDotSeparated;
     private $stringWithoutSpaces;
 
-    /**
-     * @throws ReflectionException
-     */
     public function testConstructor()
     {
         static::assertHasNoConstructor(Miscellaneous::class);
@@ -382,7 +379,7 @@ class MiscellaneousTest extends BaseTestCase
         mkdir($directory1Path, 0777, true);
         mkdir($directory2Path, 0777, true);
 
-        self::assertTrue(Miscellaneous::removeDirectory(sys_get_temp_dir() . '/lorem', false));
+        self::assertTrue(Miscellaneous::removeDirectory(sys_get_temp_dir() . '/lorem'));
     }
 
     /**
@@ -651,10 +648,6 @@ class MiscellaneousTest extends BaseTestCase
         self::assertEquals(255, Miscellaneous::getValidColorComponent(255, false));
     }
 
-    /**
-     * @throws IncorrectColorHexLengthException
-     * @throws InvalidColorHexValueException
-     */
     public function testGetInvertedColorWithIncorrectLength()
     {
         $this->setExpectedException(IncorrectColorHexLengthException::class);
@@ -669,10 +662,6 @@ class MiscellaneousTest extends BaseTestCase
         Miscellaneous::getInvertedColor('1234567');
     }
 
-    /**
-     * @throws IncorrectColorHexLengthException
-     * @throws InvalidColorHexValueException
-     */
     public function testGetInvertedColorWithInvalidValue()
     {
         $this->setExpectedException(InvalidColorHexValueException::class);
@@ -684,10 +673,6 @@ class MiscellaneousTest extends BaseTestCase
         Miscellaneous::getInvertedColor('00ppqq');
     }
 
-    /**
-     * @throws IncorrectColorHexLengthException
-     * @throws InvalidColorHexValueException
-     */
     public function testGetInvertedColor()
     {
         /*
@@ -1501,10 +1486,6 @@ class MiscellaneousTest extends BaseTestCase
     protected function tearDown()
     {
         parent::tearDown();
-
-        unset($this->stringSmall);
-        unset($this->stringCommaSeparated);
-        unset($this->stringDotSeparated);
-        unset($this->stringWithoutSpaces);
+        unset($this->stringSmall, $this->stringCommaSeparated, $this->stringDotSeparated, $this->stringWithoutSpaces);
     }
 }