diff --git a/lib/CleantalkSP/Common/Scanner/HeuristicAnalyser/tests/.phpcs.xml b/lib/CleantalkSP/Common/Scanner/HeuristicAnalyser/tests/.phpcs.xml
deleted file mode 100644
index 10ccec065..000000000
--- a/lib/CleantalkSP/Common/Scanner/HeuristicAnalyser/tests/.phpcs.xml
+++ /dev/null
@@ -1,30 +0,0 @@
-<?xml version="1.0"?>
-<ruleset name="PHP compatibility">
-	<description>Sniff code to check different PHP compatibility</description>
-
-	<!-- What to scan -->
-	<file>../</file>
-	<exclude-pattern>/vendor/</exclude-pattern>
-	<exclude-pattern>/lib/</exclude-pattern>
-
-	<!-- How to scan -->
-	<!-- Usage instructions: https://github.com/squizlabs/PHP_CodeSniffer/wiki/Usage -->
-	<!-- Annotated ruleset: https://github.com/squizlabs/PHP_CodeSniffer/wiki/Annotated-ruleset.xml -->
-	<arg value="sp"/> <!-- Show sniff and progress -->
-	<arg name="basepath" value="./"/><!-- Strip the file paths down to the relevant bit -->
-	<arg name="colors"/>
-	<arg name="extensions" value="php"/>
-	<!-- Exclude test directories -->
-	<exclude-pattern>tests/*</exclude-pattern>
-	<exclude-pattern>vendor/*</exclude-pattern>
-	<exclude-pattern>fw_files/*</exclude-pattern>
-	<arg name="exclude" value="PSR12.ControlStructures.ControlStructureSpacing"/>
-	<arg value="n"/>
-
-	<!-- Rules: Check PHP version compatibility -->
-	<!-- https://github.com/PHPCompatibility/PHPCompatibility#sniffing-your-code-for-compatibility-with-specific-php-versions -->
-	<config name="testVersion" value="7.4-"/>
-
-	<rule ref="PHPCompatibility"/>
-	<rule ref="PSR12"/>
-</ruleset>
diff --git a/lib/CleantalkSP/Common/Scanner/HeuristicAnalyser/tests/Scanner/HTMLTest.php b/lib/CleantalkSP/Common/Scanner/HeuristicAnalyser/tests/Scanner/HTMLTest.php
deleted file mode 100644
index a31814267..000000000
--- a/lib/CleantalkSP/Common/Scanner/HeuristicAnalyser/tests/Scanner/HTMLTest.php
+++ /dev/null
@@ -1,29 +0,0 @@
-<?php
-
-use CleantalkSP\Common\Scanner\HeuristicAnalyser\Modules\HTML;
-use CleantalkSP\Common\Scanner\HeuristicAnalyser\Modules\Tokens;
-use PHPUnit\Framework\TestCase;
-
-class HTMLTest extends TestCase
-{
-    private $html;
-
-    public function setUp()
-    {
-        $file_content = "<?php
-        echo(
-            '<script>alert(1);</script>'
-        );
-        ?>
-        <script>alert(2);</script>
-        ";
-        $tokens = new Tokens($file_content);
-        $this->html = new HTML($tokens);
-    }
-
-    public function testAnalise()
-    {
-        $this->html->analise();
-        $this->assertEquals('T_INLINE_HTML', $this->html->result);
-    }
-}
diff --git a/lib/CleantalkSP/Common/Scanner/HeuristicAnalyser/tests/Scanner/TokensTest.php b/lib/CleantalkSP/Common/Scanner/HeuristicAnalyser/tests/Scanner/TokensTest.php
deleted file mode 100644
index 966e84bbe..000000000
--- a/lib/CleantalkSP/Common/Scanner/HeuristicAnalyser/tests/Scanner/TokensTest.php
+++ /dev/null
@@ -1,26 +0,0 @@
-<?php
-
-use CleantalkSP\Common\Scanner\HeuristicAnalyser\DataStructures\Token;
-use CleantalkSP\Common\Scanner\HeuristicAnalyser\Modules\Tokens;
-use PHPUnit\Framework\TestCase;
-
-class TokensTest extends TestCase
-{
-    private $tokens;
-
-    public function setUp()
-    {
-        $file_content = "<?php
-            echo('hello');        
-        ";
-        $this->tokens = new Tokens($file_content);
-    }
-
-    public function testGetTokenFromPosition()
-    {
-        $echo_token = $this->tokens->getTokenFromPosition(2);
-        $this->assertInstanceOf(Token::class, $echo_token);
-        $this->assertEquals($echo_token[0], 'T_ECHO');
-        $this->assertEquals($echo_token[1], 'echo');
-    }
-}
diff --git a/lib/CleantalkSP/Common/Scanner/HeuristicAnalyser/tests/bootstrap.php b/lib/CleantalkSP/Common/Scanner/HeuristicAnalyser/tests/bootstrap.php
deleted file mode 100644
index 7386fad60..000000000
--- a/lib/CleantalkSP/Common/Scanner/HeuristicAnalyser/tests/bootstrap.php
+++ /dev/null
@@ -1,22 +0,0 @@
-<?php
-
-/**
- * Autoloader for \CleantalkSP\* classes
- *
- * @param string $class
- *
- * @return void
- */
-
-spl_autoload_register(function ($class) {
-
-    // Register class auto loader
-    // Custom modules1
-    if ( strpos($class, 'CleantalkSP') !== false ) {
-        $class      = str_replace('CleantalkSP\Common\Scanner\HeuristicAnalyser\\', DIRECTORY_SEPARATOR, $class);
-        $class_file = dirname(__DIR__) . $class . '.php';
-        if ( file_exists($class_file) ) {
-            require_once($class_file);
-        }
-    }
-});
diff --git a/lib/CleantalkSP/Common/Scanner/HeuristicAnalyser/tests/phpunit.xml b/lib/CleantalkSP/Common/Scanner/HeuristicAnalyser/tests/phpunit.xml
deleted file mode 100644
index dbe592172..000000000
--- a/lib/CleantalkSP/Common/Scanner/HeuristicAnalyser/tests/phpunit.xml
+++ /dev/null
@@ -1,17 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" ?>
-<phpunit
-        bootstrap="bootstrap.php"
-        colors="true"
-        convertErrorsToExceptions="true"
-        convertNoticesToExceptions="true"
-        convertWarningsToExceptions="true"
-        stopOnFailure="true"
-        beStrictAboutOutputDuringTests="true"
->
-    <testsuites>
-        <testsuite name="CleanTalk SPBCT Heuristic Analyser classes Unit Tests">
-            <directory suffix=".php">./</directory>
-            <exclude>./bootstrap.php</exclude>
-        </testsuite>
-    </testsuites>
-</phpunit>
diff --git a/lib/CleantalkSP/Common/Scanner/SignaturesAnalyser/tests/.phpcs.xml b/lib/CleantalkSP/Common/Scanner/SignaturesAnalyser/tests/.phpcs.xml
deleted file mode 100644
index f21f21787..000000000
--- a/lib/CleantalkSP/Common/Scanner/SignaturesAnalyser/tests/.phpcs.xml
+++ /dev/null
@@ -1,30 +0,0 @@
-<?xml version="1.0"?>
-<ruleset name="PHP compatibility">
-	<description>Sniff code to check different PHP compatibility</description>
-
-	<!-- What to scan -->
-	<file>../</file>
-	<exclude-pattern>/vendor/</exclude-pattern>
-	<exclude-pattern>/lib/</exclude-pattern>
-
-	<!-- How to scan -->
-	<!-- Usage instructions: https://github.com/squizlabs/PHP_CodeSniffer/wiki/Usage -->
-	<!-- Annotated ruleset: https://github.com/squizlabs/PHP_CodeSniffer/wiki/Annotated-ruleset.xml -->
-	<arg value="sp"/> <!-- Show sniff and progress -->
-	<arg name="basepath" value="./"/><!-- Strip the file paths down to the relevant bit -->
-	<arg name="colors"/>
-	<arg name="extensions" value="php"/>
-	<!-- Exclude test directories -->
-	<exclude-pattern>tests/*</exclude-pattern>
-	<exclude-pattern>vendor/*</exclude-pattern>
-	<exclude-pattern>fw_files/*</exclude-pattern>
-	<arg name="exclude" value="PSR12.ControlStructures.ControlStructureSpacing"/>
-	<arg value="n"/>
-
-	<!-- Rules: Check PHP version compatibility -->
-	<!-- https://github.com/PHPCompatibility/PHPCompatibility#sniffing-your-code-for-compatibility-with-specific-php-versions -->
-	<config name="testVersion" value="5.6-"/>
-
-	<rule ref="PHPCompatibility"/>
-	<rule ref="PSR12"/>
-</ruleset>
diff --git a/lib/CleantalkSP/Common/Scanner/SignaturesAnalyser/tests/bootstrap.php b/lib/CleantalkSP/Common/Scanner/SignaturesAnalyser/tests/bootstrap.php
deleted file mode 100644
index b3d9bbc7f..000000000
--- a/lib/CleantalkSP/Common/Scanner/SignaturesAnalyser/tests/bootstrap.php
+++ /dev/null
@@ -1 +0,0 @@
-<?php
diff --git a/lib/CleantalkSP/Common/Scanner/SignaturesAnalyser/tests/phpunit.xml b/lib/CleantalkSP/Common/Scanner/SignaturesAnalyser/tests/phpunit.xml
deleted file mode 100644
index dbe592172..000000000
--- a/lib/CleantalkSP/Common/Scanner/SignaturesAnalyser/tests/phpunit.xml
+++ /dev/null
@@ -1,17 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" ?>
-<phpunit
-        bootstrap="bootstrap.php"
-        colors="true"
-        convertErrorsToExceptions="true"
-        convertNoticesToExceptions="true"
-        convertWarningsToExceptions="true"
-        stopOnFailure="true"
-        beStrictAboutOutputDuringTests="true"
->
-    <testsuites>
-        <testsuite name="CleanTalk SPBCT Heuristic Analyser classes Unit Tests">
-            <directory suffix=".php">./</directory>
-            <exclude>./bootstrap.php</exclude>
-        </testsuite>
-    </testsuites>
-</phpunit>