diff --git a/src/FilipSedivy/EET/Dispatcher.php b/src/FilipSedivy/EET/Dispatcher.php
index 9b9a29e..64c85dd 100755
--- a/src/FilipSedivy/EET/Dispatcher.php
+++ b/src/FilipSedivy/EET/Dispatcher.php
@@ -4,6 +4,7 @@
 
 use FilipSedivy\EET\Enum;
 use FilipSedivy\EET\Exceptions;
+use FilipSedivy\EET\Utils\Debugger;
 use FilipSedivy\EET\Utils\Format;
 use RobRichards\XMLSecLibs\XMLSecurityKey;
 use Symfony\Component\Validator\Validation;
@@ -93,6 +94,15 @@ public function check(Receipt $receipt): bool
         }
     }
 
+    public function test(Receipt $receipt, bool $hiddenSensitiveData = true): void
+    {
+        $this->check($receipt);
+
+        $debugger = new Debugger\LastRequest($this->soapClient->lastRequest);
+        $debugger->hiddenSensitiveData = $hiddenSensitiveData;
+        $debugger->out();
+    }
+
     public function getCheckCodes(Receipt $receipt): array
     {
         if (isset($this->validator)) {
diff --git a/src/FilipSedivy/EET/Utils/Debugger/LastRequest.php b/src/FilipSedivy/EET/Utils/Debugger/LastRequest.php
new file mode 100644
index 0000000..a01bb43
--- /dev/null
+++ b/src/FilipSedivy/EET/Utils/Debugger/LastRequest.php
@@ -0,0 +1,105 @@
+<?php declare(strict_types=1);
+
+namespace FilipSedivy\EET\Utils\Debugger;
+
+use DOMDocument;
+
+class LastRequest
+{
+    private const SENSITIVE_TAGS = [
+        'DigestValue',
+        'SignatureValue',
+        'BinarySecurityToken'
+    ];
+
+    /** @var bool */
+    public $highlight = true;
+
+    /** @var bool */
+    public $format = true;
+
+    /** @var bool */
+    public $hiddenSensitiveData = true;
+
+    /** @var string */
+    public $sensitiveValue = '**** CENSURE ****';
+
+    /** @var string */
+    private $lastRequest;
+
+    public function __construct(string $lastRequest)
+    {
+        $this->lastRequest = $lastRequest;
+    }
+
+    public function out(): void
+    {
+        if ($this->hiddenSensitiveData) {
+            $this->doHiddenSensitiveData();
+        }
+
+        if ($this->format) {
+            $this->doFormat();
+        }
+
+        if ($this->highlight) {
+            $this->doHighlight();
+        }
+
+        printf('<pre>%s</pre>', $this->lastRequest);
+    }
+
+    private function doFormat(): void
+    {
+        $dom = new DOMDocument;
+
+        $dom->preserveWhiteSpace = false;
+        $dom->formatOutput = true;
+
+        $dom->loadXML($this->lastRequest);
+
+        $this->lastRequest = $dom->saveXML();
+    }
+
+    private function doHighlight(): void
+    {
+        $s = htmlspecialchars($this->lastRequest);
+
+        $s = preg_replace("#&lt;([/]*?)(.*)([\s]*?)&gt;#sU",
+            "<span style=\"color: #0000FF\">&lt;\\1\\2\\3&gt;</span>", $s);
+
+        $s = preg_replace("#&lt;([\?])(.*)([\?])&gt;#sU",
+            "<span style=\"color: #800000\">&lt;\\1\\2\\3&gt;</span>", $s);
+
+        $s = preg_replace("#&lt;([^\s\?/=])(.*)([\[\s/]|&gt;)#iU",
+            "&lt;<span style=\"color: #808000\">\\1\\2</span>\\3", $s);
+
+        $s = preg_replace("#&lt;([/])([^\s]*?)([\s\]]*?)&gt;#iU",
+            "&lt;\\1<span style=\"color: #808000\">\\2</span>\\3&gt;", $s);
+
+        $s = preg_replace("#([^\s]*?)\=(&quot;|')(.*)(&quot;|')#isU",
+            "<span style=\"color: #800080\">\\1</span>=<span style=\"color: #FF00FF\">\\2\\3\\4</span>", $s);
+
+        $s = preg_replace("#&lt;(.*)(\[)(.*)(\])&gt;#isU",
+            "&lt;\\1<span style=\"color: #800080\">\\2\\3\\4</span>&gt;", $s);
+
+        $this->lastRequest = nl2br($s);
+    }
+
+    private function doHiddenSensitiveData(): void
+    {
+        $dom = new DOMDocument;
+        $dom->loadXML($this->lastRequest);
+
+        foreach (self::SENSITIVE_TAGS as $tag) {
+            $nodeList = $dom->getElementsByTagName($tag);
+
+            for ($i = 0; $i < $nodeList->length; $i++) {
+                $node = $nodeList->item($i);
+                $node->nodeValue = $this->sensitiveValue;
+            }
+        }
+
+        $this->lastRequest = $dom->saveXML();
+    }
+}
\ No newline at end of file
diff --git a/tests/Data/EET_CA1_Playground-CZ00000019.p12 b/tests/Data/EET_CA1_Playground-CZ00000019.p12
index 589d50a..6fb8d08 100644
Binary files a/tests/Data/EET_CA1_Playground-CZ00000019.p12 and b/tests/Data/EET_CA1_Playground-CZ00000019.p12 differ
diff --git a/tests/Data/EET_CA1_Playground-CZ1212121218.p12 b/tests/Data/EET_CA1_Playground-CZ1212121218.p12
new file mode 100644
index 0000000..3173854
Binary files /dev/null and b/tests/Data/EET_CA1_Playground-CZ1212121218.p12 differ
diff --git a/tests/Data/EET_CA1_Playground-CZ683555118.p12 b/tests/Data/EET_CA1_Playground-CZ683555118.p12
new file mode 100644
index 0000000..697fa9b
Binary files /dev/null and b/tests/Data/EET_CA1_Playground-CZ683555118.p12 differ
diff --git a/tests/Data/EET_CA1_Playground-ca.crt b/tests/Data/EET_CA1_Playground-ca.crt
new file mode 100644
index 0000000..e5d3f23
Binary files /dev/null and b/tests/Data/EET_CA1_Playground-ca.crt differ