diff --git a/Application/Model/AbstractClasses/pdfdocumentsGeneric.php b/Application/Model/AbstractClasses/pdfdocumentsGeneric.php
index e5ca5d3..0591fea 100644
--- a/Application/Model/AbstractClasses/pdfdocumentsGeneric.php
+++ b/Application/Model/AbstractClasses/pdfdocumentsGeneric.php
@@ -242,6 +242,9 @@ abstract class pdfdocumentsGeneric extends Base implements genericInterface
             ->getTemplateRenderer();
     }
 
+    /**
+     * @codeCoverageIgnore
+     */
     public function getPdfProperties(): array
     {
         return [
diff --git a/Tests/Unit/Application/Model/Documents/nonOrderDocumentTest.php b/Tests/Unit/Application/Model/Documents/nonOrderDocumentTest.php
index 5d9beed..6506d1d 100644
--- a/Tests/Unit/Application/Model/Documents/nonOrderDocumentTest.php
+++ b/Tests/Unit/Application/Model/Documents/nonOrderDocumentTest.php
@@ -18,10 +18,18 @@ use D3\PdfDocuments\Application\Model\AbstractClasses\pdfdocumentsGeneric as pdf
 use D3\PdfDocuments\Tests\Unit\Application\Model\AbstractClasses\pdfDocumentsGeneric;
 use D3\PdfDocuments\Tests\Unit\Helpers\nonOrderDocument;
 use Generator;
+use OxidEsales\Eshop\Core\Config;
 use OxidEsales\Eshop\Core\Registry;
 use OxidEsales\Eshop\Core\Utils;
 use OxidEsales\Eshop\Core\UtilsView;
+use OxidEsales\EshopCommunity\Internal\Container\ContainerFactory;
+use OxidEsales\EshopCommunity\Internal\Framework\Module\Facade\ModuleSettingService;
+use OxidEsales\EshopCommunity\Internal\Framework\Module\Facade\ModuleSettingServiceInterface;
+use OxidEsales\EshopCommunity\Internal\Framework\Templating\TemplateRenderer;
+use PHPUnit\Framework\MockObject\MockObject;
+use PHPUnit\Framework\MockObject\Rule\InvocationOrder;
 use ReflectionException;
+use Symfony\Component\String\UnicodeString;
 
 class nonOrderDocumentTest extends pdfDocumentsGeneric
 {
@@ -122,4 +130,143 @@ class nonOrderDocumentTest extends pdfDocumentsGeneric
         yield 'no exception' => [false, 'pdfContentFixture'];
         yield 'exception' => [true, null];
     }
+
+    /**
+     * @test
+     * @covers \D3\PdfDocuments\Application\Model\AbstractClasses\pdfdocumentsGeneric::getHTMLContent
+     * @throws ReflectionException
+     */
+    public function testGetHTMLContent(): void
+    {
+        $templateRender = $this->getMockBuilder(TemplateRenderer::class)
+            ->onlyMethods(['renderTemplate'])
+            ->disableOriginalConstructor()
+            ->getMock();
+        $templateRender->method('renderTemplate')->willReturn('htmlContentFixture');
+
+        $sut = $this->getMockBuilder($this->sutClassName)
+            ->onlyMethods(['getTemplateRenderer', 'addBasicAuth'])
+            ->getMock();
+        $sut->method('getTemplateRenderer')->willReturn($templateRender);
+        $sut->method('addBasicAuth')->willReturnArgument(0);
+
+        $this->assertSame(
+            'htmlContentFixture',
+            $this->callMethod(
+                $sut,
+                'getHTMLContent',
+            )
+        );
+    }
+
+    /**
+     * @test
+     * @covers \D3\PdfDocuments\Application\Model\AbstractClasses\pdfdocumentsGeneric::addBasicAuth
+     * @throws ReflectionException
+     * @dataProvider addBasicAuthDataProvider
+     */
+    public function testAddBasicAuth(string $credential, string $expected): void
+    {
+        $source = '<a href="https://www.test.dev/image.jpg">image</a>';
+
+        $settingService = $this->getMockBuilder(ModuleSettingService::class)
+            ->onlyMethods(['getString'])
+            ->disableOriginalConstructor()
+            ->getMock();
+        $settingService->method('getString')->willReturn(new UnicodeString($credential));
+
+        $config = $this->getMockBuilder(Config::class)
+            ->onlyMethods(['getShopCurrentUrl'])
+            ->getMock();
+        $config->method('getShopCurrentUrl')->willReturn('https://www.test.dev/index.php');
+
+        $this->addServiceMocks([ModuleSettingServiceInterface::class => $settingService]);
+        $currentConfig = Registry::getConfig();
+        Registry::set(Config::class, $config);
+
+        $sut = oxNew($this->sutClassName);
+
+        try {
+            $this->assertSame(
+                $expected,
+                $this->callMethod(
+                    $sut,
+                    'addBasicAuth',
+                    [ $source ]
+                )
+            );
+        } finally {
+            Registry::set(Config::class, $currentConfig);
+            ContainerFactory::resetContainer();
+        }
+    }
+
+    public static function addBasicAuthDataProvider(): Generator
+    {
+        yield 'no credential' => ['', '<a href="https://www.test.dev/image.jpg">image</a>'];
+        yield 'credential' => ['crd', '<a href="https://crd:crd@www.test.dev/image.jpg">image</a>'];
+    }
+
+    /**
+     * @test
+     * @covers \D3\PdfDocuments\Application\Model\AbstractClasses\pdfdocumentsGeneric::setFilename
+     * @covers \D3\PdfDocuments\Application\Model\AbstractClasses\pdfdocumentsGeneric::getFilename
+     * @throws ReflectionException
+     * @dataProvider setFilenameDataProvider
+     */
+    public function testGetFileName(?string $setFileName, InvocationOrder $getTypeInvocation, string $expected): void
+    {
+        /** @var MockObject|nonOrderDocument $sut */
+        $sut = $this->getMockBuilder($this->sutClassName)
+            ->onlyMethods(['sanitizeFileName', 'addFilenameExtension', 'getTypeForFilename'])
+            ->getMock();
+        $sut->expects($this->once())->method('sanitizeFileName')->willReturnArgument(0);
+        $sut->expects($this->once())->method('addFilenameExtension')->willReturnArgument(0);
+        $sut->expects($getTypeInvocation)->method('getTypeForFilename')->willReturn('docType');
+
+        if ($setFileName) {
+            $sut->setFileName($setFileName);
+        }
+
+        $this->assertSame(
+            $expected,
+            $this->callMethod(
+                $sut,
+                'getFileName'
+            )
+        );
+    }
+
+    public static function setFilenameDataProvider(): Generator
+    {
+        yield 'no set filename' => [null, self::once(), 'docType'];
+        yield 'set filename' => ['document', self::never(), 'document'];
+    }
+
+    /**
+     * @test
+     * @covers \D3\PdfDocuments\Application\Model\AbstractClasses\pdfdocumentsGeneric::addFilenameExtension
+     * @throws ReflectionException
+     * @dataProvider addFilenameExtensionDataProvider
+     */
+    public function testAddFilenameExtension(string $filename, string $expected): void
+    {
+        $sut = oxNew($this->sutClassName);
+
+        $this->assertSame(
+            $expected,
+            $this->callMethod(
+                $sut,
+                'addFilenameExtension',
+                [$filename]
+            )
+        );
+    }
+
+    public static function addFilenameExtensionDataProvider(): Generator
+    {
+        yield 'no extension' => ['document', 'document.pdf'];;
+        yield 'with extension' => ['document.pdf', 'document.pdf'];;
+        yield 'with different extensions' => ['document.txt', 'document.txt.pdf'];
+    }
 }
\ No newline at end of file