diff --git a/psalm.xml b/psalm.xml
index 22601f8..dc281a3 100644
--- a/psalm.xml
+++ b/psalm.xml
@@ -30,5 +30,10 @@
         <PossiblyNullReference>
             <errorLevel type="suppress"><directory name="tests/src" /></errorLevel>
         </PossiblyNullReference>
+        <InternalMethod>
+            <errorLevel type="suppress">
+                <directory name="tests" />
+            </errorLevel>
+        </InternalMethod>
     </issueHandlers>
 </psalm>
diff --git a/src/Components/Blocks/BlockQuote.php b/src/Components/Blocks/BlockQuote.php
index d356358..32b8adf 100644
--- a/src/Components/Blocks/BlockQuote.php
+++ b/src/Components/Blocks/BlockQuote.php
@@ -82,7 +82,7 @@ final class BlockQuote implements ContinuableBlock
             return new self($Lines);
         }
 
-        if (! $Context->precedingEmptyLines() > 0) {
+        if (!($Context->precedingEmptyLines() > 0)) {
             $indentOffset = $Context->line()->indentOffset() + $Context->line()->indent();
             $Lines = $this->Lines->appendingTextLines($Context->line()->text(), $indentOffset);
 
diff --git a/src/Components/Blocks/IndentedCode.php b/src/Components/Blocks/IndentedCode.php
index b40bc2d..b5ae8fb 100644
--- a/src/Components/Blocks/IndentedCode.php
+++ b/src/Components/Blocks/IndentedCode.php
@@ -35,7 +35,7 @@ final class IndentedCode implements ContinuableBlock
         State $State,
         Block $Block = null
     ) {
-        if (isset($Block) && $Block instanceof Paragraph && ! $Context->precedingEmptyLines() > 0) {
+        if (isset($Block) && $Block instanceof Paragraph && ! ($Context->precedingEmptyLines() > 0)) {
             return null;
         }
 
diff --git a/src/Components/Blocks/TList.php b/src/Components/Blocks/TList.php
index 7f318dd..b368c98 100644
--- a/src/Components/Blocks/TList.php
+++ b/src/Components/Blocks/TList.php
@@ -134,7 +134,7 @@ final class TList implements ContinuableBlock
                     $listStart !== 1
                     && isset($Block)
                     && $Block instanceof Paragraph
-                    && ! $Context->precedingEmptyLines() > 0
+                    && ! ($Context->precedingEmptyLines() > 0)
                 ) {
                     return null;
                 }
@@ -248,7 +248,7 @@ final class TList implements ContinuableBlock
             );
         }
 
-        if (! $Context->precedingEmptyLines() > 0) {
+        if (! ($Context->precedingEmptyLines() > 0)) {
             $text = $Context->line()->ltrimBodyUpto($requiredIndent);
 
             $Lis[\count($Lis) -1] = $Lis[\count($Lis) -1]->appendingTextLines(
diff --git a/src/Components/Blocks/Table.php b/src/Components/Blocks/Table.php
index ee4db72..0ede0f6 100644
--- a/src/Components/Blocks/Table.php
+++ b/src/Components/Blocks/Table.php
@@ -112,7 +112,6 @@ final class Table implements AcquisitioningBlock, ContinuableBlock
         if (
             ! \preg_match_all('/(?:(\\\\[|])|[^|`]|`[^`]++`|`)++/', $row, $matches)
             || ! isset($matches[0])
-            || ! \is_array($matches[0])
         ) {
             return null;
         }
diff --git a/src/Configurables/DefinitionBook.php b/src/Configurables/DefinitionBook.php
index 38e55b0..4c437da 100644
--- a/src/Configurables/DefinitionBook.php
+++ b/src/Configurables/DefinitionBook.php
@@ -48,6 +48,7 @@ final class DefinitionBook implements MutableConfigurable
         return null;
     }
 
+    /** @return static */
     public function isolatedCopy(): self
     {
         return new self($this->book);
diff --git a/src/Configurables/SlugRegister.php b/src/Configurables/SlugRegister.php
index 1a659e0..3b36dbe 100644
--- a/src/Configurables/SlugRegister.php
+++ b/src/Configurables/SlugRegister.php
@@ -37,6 +37,7 @@ final class SlugRegister implements MutableConfigurable
         return $this->register[$slug] ?? 0;
     }
 
+    /** @return static */
     public function isolatedCopy(): self
     {
         return new self($this->register);
diff --git a/src/Parsedown.php b/src/Parsedown.php
index bd1407b..bfb5bdf 100644
--- a/src/Parsedown.php
+++ b/src/Parsedown.php
@@ -15,7 +15,6 @@ use Erusev\Parsedown\Configurables\BlockTypes;
 use Erusev\Parsedown\Configurables\InlineTypes;
 use Erusev\Parsedown\Configurables\RecursionLimiter;
 use Erusev\Parsedown\Html\Renderable;
-use Erusev\Parsedown\Html\Renderables\Text;
 use Erusev\Parsedown\Parsing\Excerpt;
 use Erusev\Parsedown\Parsing\Line;
 use Erusev\Parsedown\Parsing\Lines;
diff --git a/tests/CommonMarkTestWeak.php b/tests/CommonMarkTestWeak.php
index e04ad3c..9293de9 100644
--- a/tests/CommonMarkTestWeak.php
+++ b/tests/CommonMarkTestWeak.php
@@ -30,16 +30,11 @@ class CommonMarkTestWeak extends CommonMarkTestStrict
     {
         $textLevelElements = \array_keys(Element::TEXT_LEVEL_ELEMENTS);
 
-        \array_walk(
-            $textLevelElements,
-            /**
-             * @param string &$element
-             * @return void
-             */
-            function (&$element) {
-                $element = \preg_quote($element, '/');
-            }
+        $textLevelElements = \array_map(
+            function ($e) { return \preg_quote($e, '/'); },
+            $textLevelElements
         );
+
         $this->textLevelElementRegex = '\b(?:' . \implode('|', $textLevelElements) . ')\b';
 
         parent::__construct($name, $data, $dataName);
diff --git a/tests/ParsedownTest.php b/tests/ParsedownTest.php
index f0833c5..c8a51f0 100755
--- a/tests/ParsedownTest.php
+++ b/tests/ParsedownTest.php
@@ -75,10 +75,7 @@ class ParsedownTest extends TestCase
 
         foreach ($this->dirs as $dir) {
             $Folder = new \DirectoryIterator($dir);
-
             foreach ($Folder as $File) {
-                /** @var $File DirectoryIterator */
-
                 if (! $File->isFile()) {
                     continue;
                 }
diff --git a/tests/src/StateTest.php b/tests/src/StateTest.php
index 0cc58a2..babb419 100644
--- a/tests/src/StateTest.php
+++ b/tests/src/StateTest.php
@@ -32,7 +32,7 @@ final class StateTest extends TestCase
 
     /**
      * @return void
-     * @throws \PHPUnit\Framework\ExpectationFailedException
+     * @throws \PHPUnit\Framework\Exception
      * @throws \SebastianBergmann\RecursionContext\InvalidArgumentException
      */
     public function testStateCloneVisibility()