diff --git a/src/PHPHtmlParser/StaticDom.php b/src/PHPHtmlParser/StaticDom.php
index 41939b1..0f053cf 100644
--- a/src/PHPHtmlParser/StaticDom.php
+++ b/src/PHPHtmlParser/StaticDom.php
@@ -98,4 +98,12 @@ public static function loadFromUrl($url, CurlInterface $curl = null)
 
 		return $dom->loadFromUrl($url, $curl);
 	}
+
+	/**
+	 * Sets the $dom variable to null.
+	 */
+	public static function unload()
+	{
+		self::$dom = null;
+	}
 }
diff --git a/tests/ContentTest.php b/tests/ContentTest.php
index 6617a54..ef8fbff 100644
--- a/tests/ContentTest.php
+++ b/tests/ContentTest.php
@@ -31,6 +31,14 @@ public function testRewind()
 		$this->assertEquals('b', $content->char());
 	}
 
+	public function testRewindNegative()
+	{
+		$content = new Content('abcde');
+		$content->fastForward(2)
+		        ->rewind(100);
+		$this->assertEquals('a', $content->char());
+	}
+
 	public function testCopyUntil()
 	{
 		$content = new Content('abcdeedcba');
@@ -49,6 +57,12 @@ public function testCopyUntilEscape()
 		$this->assertEquals('foo\"bar', $content->copyUntil('"', false, true));
 	}
 
+	public function testCopyUntilNotFound()
+	{
+		$content = new Content('foo\"bar"bax');
+		$this->assertEquals('foo\"bar"bax', $content->copyUntil('baz'));
+	}
+
 	public function testCopyByToken()
 	{
 		$content = new Content('<a href="google.com">');
diff --git a/tests/DomTest.php b/tests/DomTest.php
index d9fd67d..8453de6 100644
--- a/tests/DomTest.php
+++ b/tests/DomTest.php
@@ -12,6 +12,23 @@ public function testLoad()
 		$this->assertEquals('<div class="all"><p>Hey bro, <a href="google.com">click here</a><br /> :)</p></div>', $div->outerHtml);
 	}
 
+	/**
+	 * @expectedException PHPHtmlParser\Exceptions\NotLoadedException
+	 */
+	public function testNotLoaded()
+	{
+		$dom = new Dom;
+		$div = $dom->find('div', 0);
+	}
+
+	public function testIncorrectAccess()
+	{
+		$dom = new Dom;
+		$dom->load('<div class="all"><p>Hey bro, <a href="google.com">click here</a><br /> :)</p></div>');
+		$div = $dom->find('div', 0);
+		$this->assertEquals(null, $div->foo);
+	}
+
 	public function testLoadSelfclosingAttr()
 	{
 		$dom = new Dom;
@@ -20,6 +37,14 @@ public function testLoadSelfclosingAttr()
 		$this->assertEquals('<br foo bar />', $br->outerHtml);
 	}
 
+	public function testLoadSelfclosingAttrToString()
+	{
+		$dom = new Dom;
+		$dom->load("<div class='all'><br  foo  bar  />baz</div>");
+		$br = $dom->find('br', 0);
+		$this->assertEquals('<br foo bar />', (string) $br);
+	}
+
 	public function testLoadEscapeQuotes()
 	{
 		$dom = new Dom;
@@ -58,6 +83,41 @@ public function testLoadClosingTagOnSelfClosing()
 		$this->assertEquals('<br /><p>Hey bro, <a href="google.com" data-quote="\"">click here</a></p>', $dom->find('div', 0)->innerHtml);
 	}
 
+	public function testLoadClosingTagAddSelfClosingTag()
+	{
+		$dom = new Dom;
+		$dom->addSelfClosingTag('mytag');
+		$dom->load('<div class="all"><mytag><p>Hey bro, <a href="google.com" data-quote="\"">click here</a></mytag></div>');
+		$this->assertEquals('<mytag /><p>Hey bro, <a href="google.com" data-quote="\"">click here</a></p>', $dom->find('div', 0)->innerHtml);
+	}
+
+	public function testLoadClosingTagAddSelfClosingTagArray()
+	{
+		$dom = new Dom;
+		$dom->addSelfClosingTag([
+			'mytag',
+			'othertag'
+		]);
+		$dom->load('<div class="all"><mytag><p>Hey bro, <a href="google.com" data-quote="\"">click here</a><othertag></div>');
+		$this->assertEquals('<mytag /><p>Hey bro, <a href="google.com" data-quote="\"">click here</a><othertag /></p>', $dom->find('div', 0)->innerHtml);
+	}
+
+	public function testLoadClosingTagRemoveSelfClosingTag()
+	{
+		$dom = new Dom;
+		$dom->removeSelfClosingTag('br');
+		$dom->load('<div class="all"><br><p>Hey bro, <a href="google.com" data-quote="\"">click here</a></br></div>');
+		$this->assertEquals('<br><p>Hey bro, <a href="google.com" data-quote="\"">click here</a></p></br>', $dom->find('div', 0)->innerHtml);
+	}
+
+	public function testLoadClosingTagClearSelfClosingTag()
+	{
+		$dom = new Dom;
+		$dom->clearSelfClosingTags();
+		$dom->load('<div class="all"><br><p>Hey bro, <a href="google.com" data-quote="\"">click here</a></br></div>');
+		$this->assertEquals('<br><p>Hey bro, <a href="google.com" data-quote="\"">click here</a></p></br>', $dom->find('div', 0)->innerHtml);
+	}
+
 	public function testLoadUpperCase()
 	{
 		$dom = new Dom;
diff --git a/tests/Node/HtmlTest.php b/tests/Node/HtmlTest.php
index 006faba..e251339 100644
--- a/tests/Node/HtmlTest.php
+++ b/tests/Node/HtmlTest.php
@@ -35,6 +35,36 @@ public function testInnerHtml()
 		$this->assertEquals("<a href='http://google.com'>link</a><br />", $parent->innerHtml());
 	}
 
+	public function testInnerHtmlTwice()
+	{
+		$div = new Tag('div');
+		$div->setAttributes([
+			'class' => [
+				'value'       => 'all',
+				'doubleQuote' => true,
+			],
+		]);
+		$a = new Tag('a');
+		$a->setAttributes([
+			'href' => [
+				'value'       => 'http://google.com',
+				'doubleQuote' => false,
+			],
+		]);
+		$br = new Tag('br');
+		$br->selfClosing();
+
+		$parent  = new HtmlNode($div);
+		$childa  = new HtmlNode($a);
+		$childbr = new HtmlNode($br);
+		$parent->addChild($childa);
+		$parent->addChild($childbr);
+		$childa->addChild(new TextNode('link'));
+
+		$inner = $parent->innerHtml();
+		$this->assertEquals($inner, $parent->innerHtml());
+	}
+
 	public function testInnerHtmlMagic()
 	{
 		$parent  = new HtmlNode('div');
@@ -90,6 +120,36 @@ public function testOuterHtml()
 		$this->assertEquals('<div class="all"><a href=\'http://google.com\'>link</a><br /></div>', $parent->outerHtml());
 	}
 
+	public function testOuterHtmlTwice()
+	{
+		$div = new Tag('div');
+		$div->setAttributes([
+			'class' => [
+				'value'       => 'all',
+				'doubleQuote' => true,
+			],
+		]);
+		$a = new Tag('a');
+		$a->setAttributes([
+			'href' => [
+				'value'       => 'http://google.com',
+				'doubleQuote' => false,
+			],
+		]);
+		$br = new Tag('br');
+		$br->selfClosing();
+
+		$parent  = new HtmlNode($div);
+		$childa  = new HtmlNode($a);
+		$childbr = new HtmlNode($br);
+		$parent->addChild($childa);
+		$parent->addChild($childbr);
+		$childa->addChild(new TextNode('link'));
+
+		$outer = $parent->outerHtml();
+		$this->assertEquals($outer, $parent->outerHtml());
+	}
+
 	public function testOuterHtmlEmpty()
 	{
 		$a = new Tag('a');
@@ -139,6 +199,16 @@ public function testText()
 		$this->assertEquals('link', $node->text());
 	}
 
+	public function testTextTwice()
+	{
+		$a    = new Tag('a');
+		$node = new HtmlNode($a);
+		$node->addChild(new TextNode('link'));
+		
+		$text = $node->text();
+		$this->assertEquals($text, $node->text());
+	}
+
 	public function testTextNone()
 	{
 		$a    = new Tag('a');
diff --git a/tests/Node/TagTest.php b/tests/Node/TagTest.php
index f9fb70d..cf29cf8 100644
--- a/tests/Node/TagTest.php
+++ b/tests/Node/TagTest.php
@@ -25,6 +25,12 @@ public function testSetAttributes()
 		$this->assertEquals('http://google.com', $tag->getAttribute('href')['value']);
 	}
 
+	public function testNoise()
+	{
+		$tag = new Tag('a');
+		$this->assertTrue($tag->noise('noise') instanceof Tag);
+	}
+
 	public function testGetAttributeMagic()
 	{
 		$attr = [
diff --git a/tests/OptionsTest.php b/tests/OptionsTest.php
index 27b91ac..b5398c1 100644
--- a/tests/OptionsTest.php
+++ b/tests/OptionsTest.php
@@ -33,5 +33,11 @@ public function testAddingOver()
 
 		$this->assertFalse($options->get('whitespaceTextNode'));
 	}
+
+	public function testGettingNoOption()
+	{
+		$options = new Options;
+		$this->assertEquals(null, $options->get('doesnotexist'));
+	}
 }
 
diff --git a/tests/StaticDomTest.php b/tests/StaticDomTest.php
index 1245fa1..d87671e 100644
--- a/tests/StaticDomTest.php
+++ b/tests/StaticDomTest.php
@@ -9,6 +9,19 @@ public function setUp()
 		StaticDom::mount();
 	}
 
+	public function tearDown()
+	{
+		StaticDom::unload();
+	}
+
+	public function testMountWithDom()
+	{
+		$dom = new PHPHtmlParser\Dom;
+		StaticDom::unload();
+		$status = StaticDom::mount('newDom', $dom);
+		$this->assertTrue($status);
+	}
+
 	public function testLoad()
 	{
 		$dom = Dom::load('<div class="all"><p>Hey bro, <a href="google.com">click here</a><br /> :)</p></div>');
@@ -28,6 +41,14 @@ public function testFind()
 		$this->assertEquals('<input type="submit" tabindex="0" name="submit" value="Информации" />', Dom::find('table input', 1)->outerHtml);
 	}
 
+	/**
+	 * @expectedException PHPHtmlParser\Exceptions\NotLoadedException
+	 */
+	public function testFindNoLoad()
+	{
+		Dom::find('.post-user font', 0);
+	}
+
 	public function testFindI()
 	{
 		Dom::load('tests/horrible.html');