diff --git a/test/php/library/Businessprocess/Html/AttributeTest.php b/test/php/library/Businessprocess/Html/AttributeTest.php
new file mode 100644
index 0000000..af4d82b
--- /dev/null
+++ b/test/php/library/Businessprocess/Html/AttributeTest.php
@@ -0,0 +1,150 @@
+<?php
+
+namespace Tests\Icinga\Module\Businessprocess\Html;
+
+use Icinga\Module\Businessprocess\Html\Attribute;
+use Icinga\Module\Businessprocess\Test\BaseTestCase;
+
+class AttributeTest extends BaseTestCase
+{
+    public function testCreatesFactoryCreatesAttribute()
+    {
+        $this->assertInstanceOf(
+            get_class(new Attribute('a', 'b')),
+            Attribute::create('a', 'b')
+        );
+    }
+
+    public function testKnowsItsName()
+    {
+        $a = new Attribute('target', '_blank');
+        $this->assertEquals(
+            'target',
+            $a->getName()
+        );
+    }
+
+    public function testKnowsItsValue()
+    {
+        $a = new Attribute('target', '_blank');
+        $this->assertEquals(
+            '_blank',
+            $a->getValue()
+        );
+    }
+
+    public function testItsValueCanBeModified()
+    {
+        $a = new Attribute('target', '_blank');
+        $a->setValue('_self');
+        $this->assertEquals(
+            '_self',
+            $a->getValue()
+        );
+    }
+
+    public function testPreservesComplexValues()
+    {
+        $a = new Attribute('special', 'süß "\'&');
+        $this->assertEquals(
+            'süß "\'&',
+            $a->getValue()
+        );
+    }
+
+    public function testAllowsToExtendItsValue()
+    {
+        $a = new Attribute('class', 'first');
+        $a->addValue('second');
+
+        $this->assertEquals(
+            array('first', 'second'),
+            $a->getValue()
+        );
+
+        $a->addValue('third');
+
+        $this->assertEquals(
+            array('first', 'second', 'third'),
+            $a->getValue()
+        );
+
+        $a->addValue(array('some', 'more'));
+
+        $this->assertEquals(
+            array('first', 'second', 'third', 'some', 'more'),
+            $a->getValue()
+        );
+    }
+
+    public function testAcceptsAndReturnsArrayValues()
+    {
+        $value = array('first', 'second', 'third');
+        $a = new Attribute('class', $value);
+
+        $this->assertEquals(
+            $value,
+            $a->getValue()
+        );
+
+        $value[] = 'forth';
+
+        $a->setValue($value);
+        $this->assertEquals(
+            $value,
+            $a->getValue()
+        );
+    }
+
+    public function testCorrectlyRendersItsName()
+    {
+        $a = new Attribute('class', 'test');
+        $this->assertEquals(
+            'class',
+            $a->renderName()
+        );
+    }
+
+    public function testCorrectlyRendersItsValue()
+    {
+        $a = new Attribute('href', '/some/url?a=b&c=d');
+        $this->assertEquals(
+            '/some/url?a=b&amp;c=d',
+            $a->renderValue()
+        );
+    }
+
+    public function testCorrectlyRendersArrayValues()
+    {
+        $a = new Attribute('weird', array('"sü?ß', '/some/url?a=b&c=d'));
+        $this->assertEquals(
+            '&quot;sü?ß /some/url?a=b&amp;c=d',
+            $a->renderValue()
+        );
+    }
+
+    public function testCorrectlyEscapesAName()
+    {
+        $this->assertEquals(
+            'class',
+            Attribute::escapeName('class')
+        );
+    }
+
+    public function testCorrectlyEscapesAValue()
+    {
+        $this->assertEquals(
+            "&quot;sü?ß' /some/url?a=b&amp;c=d",
+            Attribute::escapeValue('"sü?ß\' /some/url?a=b&c=d')
+        );
+    }
+
+    public function testRendersCorrectls()
+    {
+        $a = new Attribute('weird', array('"sü?ß', '/some/url?a=b&c=d'));
+        $this->assertEquals(
+            'weird="&quot;sü?ß /some/url?a=b&amp;c=d"',
+            $a->render()
+        );
+    }
+}
diff --git a/test/php/library/Businessprocess/Html/AttributesTest.php b/test/php/library/Businessprocess/Html/AttributesTest.php
new file mode 100644
index 0000000..9cbfc08
--- /dev/null
+++ b/test/php/library/Businessprocess/Html/AttributesTest.php
@@ -0,0 +1,111 @@
+<?php
+
+namespace Tests\Icinga\Module\Businessprocess\Html;
+
+use Icinga\Module\Businessprocess\Html\Attribute;
+use Icinga\Module\Businessprocess\Html\Attributes;
+use Icinga\Module\Businessprocess\Test\BaseTestCase;
+
+class AttributesTest extends BaseTestCase
+{
+    public function testCanBeConstructedFromANormalArray()
+    {
+        $a = new Attributes(
+            array(
+                'class'  => array('small', 'nice'),
+                'target' => '_blank'
+            )
+        );
+
+        $this->assertEquals(
+            ' class="small nice" target="_blank"',
+            $a->render()
+        );
+    }
+
+    public function testCanBeInstantiatedThroughCreate()
+    {
+        $class = get_class(new Attributes());
+
+        $this->assertInstanceOf(
+            $class,
+            Attributes::create()
+        );
+
+        $this->assertInstanceOf(
+            $class,
+            Attributes::create(array('some' => 'attr'))
+        );
+    }
+
+    public function testCanBeCreatedForArrayOrNullOrAttributes()
+    {
+        $empty = Attributes::wantAttributes(null);
+        $this->assertEquals('', $empty->render());
+
+        $array = Attributes::wantAttributes(array('a' => 'b'));
+        $this->assertEquals(' a="b"', $array->render());
+
+        $attributes = Attributes::wantAttributes(
+            Attributes::create(array('a' => 'b'))
+        );
+        $this->assertEquals(' a="b"', $attributes->render());
+    }
+
+    public function testCanBeExtendedWithAnAttribute()
+    {
+        $a = Attributes::create();
+        $a->add(Attribute::create('a', 'b'));
+        $this->assertEquals(' a="b"', $a->render());
+
+        $a->add(Attribute::create('c', 'd'));
+        $this->assertEquals(' a="b" c="d"', $a->render());
+
+        $a->add(Attribute::create('a', 'c'));
+        $this->assertEquals(' a="b c" c="d"', $a->render());
+    }
+
+    public function testCanBeExtendedWithAttributes()
+    {
+        $a = Attributes::create();
+        $a->add(Attributes::create(array('a' => 'b')));
+        $this->assertEquals(' a="b"', $a->render());
+
+        $a->add(Attributes::create(
+            array(
+                'a' => 'c',
+                'c' => 'd'
+            )
+        ));
+        $this->assertEquals(' a="b c" c="d"', $a->render());
+    }
+
+    public function testCanBeExtendedWithANameValuePair()
+    {
+        $a = Attributes::create();
+        $a->add('a', 'b');
+        $this->assertEquals(' a="b"', $a->render());
+    }
+
+    public function testAttributesCanBeReplacedWithAnAttribute()
+    {
+        $a = Attributes::create();
+        $a->add(Attribute::create('a', 'b'));
+        $a->set(Attribute::create('a', 'c'));
+        $this->assertEquals(' a="c"', $a->render());
+    }
+
+    public function testAttributesCanBeReplacedWithANameValuePair()
+    {
+        $a = Attributes::create();
+        $a->add(Attribute::create('a', 'b'));
+        $a->set('a', 'c');
+        $this->assertEquals(' a="c"', $a->render());
+    }
+
+    public function testCanBeConstructedAndRenderedEmpty()
+    {
+        $a = new Attributes();
+        $this->assertEquals('', $a->render());
+    }
+}
diff --git a/test/php/library/Businessprocess/Html/HtmlTest.php b/test/php/library/Businessprocess/Html/HtmlTest.php
new file mode 100644
index 0000000..87200cd
--- /dev/null
+++ b/test/php/library/Businessprocess/Html/HtmlTest.php
@@ -0,0 +1,42 @@
+<?php
+
+namespace Tests\Icinga\Module\Businessprocess\Html;
+
+use Icinga\Module\Businessprocess\Html\Html;
+use Icinga\Module\Businessprocess\Test\BaseTestCase;
+
+class HtmlTest extends BaseTestCase
+{
+    public function testContentIsRendered()
+    {
+        $h = new Html();
+        $h->setContent('Some content');
+        $this->assertEquals(
+            'Some content',
+            $h->render()
+        );
+    }
+
+    public function testContentCanBeExtended()
+    {
+        $h = new Html();
+        $h->setContent('Some content');
+        $h->addContent('More content');
+        $this->assertEquals(
+            'Some contentMore content',
+            $h->render()
+        );
+    }
+
+    public function testSeparatorsAreRespected()
+    {
+        $h = new Html();
+        $h->setContent('Some content');
+        $h->setSeparator(', and ');
+        $h->addContent('More content');
+        $this->assertEquals(
+            'Some content, and More content',
+            $h->render()
+        );
+    }
+}
diff --git a/test/php/library/Businessprocess/Html/LinkTest.php b/test/php/library/Businessprocess/Html/LinkTest.php
new file mode 100644
index 0000000..a8d4b37
--- /dev/null
+++ b/test/php/library/Businessprocess/Html/LinkTest.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace Tests\Icinga\Module\Businessprocess\Html;
+
+use Icinga\Module\Businessprocess\Html\Link;
+use Icinga\Module\Businessprocess\Test\BaseTestCase;
+
+class LinkTest extends BaseTestCase
+{
+    public function testContentFromFactoryIsRendered()
+    {
+        $l = Link::create('Click here', 'go/some/where');
+        $this->assertEquals(
+            'Click here',
+            $l->renderContent()
+        );
+    }
+
+    public function testSimpleLinkRendersCorrectly()
+    {
+        $l = Link::create('Click here', 'go/some/where');
+        $this->assertEquals(
+            '<a href="/icingaweb2/go/some/where">Click here</a>',
+            $l->render()
+        );
+    }
+
+    public function testLinkWithParamsRendersCorrectly()
+    {
+        $l = Link::create(
+            'Click here',
+            'go/some/where',
+            array(
+                'with' => 'me',
+                'and'  => 'aDog'
+            )
+        );
+        $this->assertEquals(
+            '<a href="/icingaweb2/go/some/where?with=me&amp;and=aDog">Click here</a>',
+            $l->render()
+        );
+    }
+}