diff --git a/tests/PhpWord/Element/BookmarkTest.php b/tests/PhpWord/Element/BookmarkTest.php
new file mode 100644
index 00000000..da86a62e
--- /dev/null
+++ b/tests/PhpWord/Element/BookmarkTest.php
@@ -0,0 +1,38 @@
+<?php
+/**
+ * This file is part of PHPWord - A pure PHP library for reading and writing
+ * word processing documents.
+ *
+ * PHPWord is free software distributed under the terms of the GNU Lesser
+ * General Public License version 3 as published by the Free Software Foundation.
+ *
+ * For the full copyright and license information, please read the LICENSE
+ * file that was distributed with this source code. For the full list of
+ * contributors, visit https://github.com/PHPOffice/PHPWord/contributors.
+ *
+ * @see         https://github.com/PHPOffice/PHPWord
+ * @copyright   2010-2017 PHPWord contributors
+ * @license     http://www.gnu.org/licenses/lgpl.txt LGPL version 3
+ */
+
+namespace PhpOffice\PhpWord\Element;
+
+/**
+ * Test class for PhpOffice\PhpWord\Element\Footer
+ *
+ * @runTestsInSeparateProcesses
+ */
+class BookmarkTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * New instance
+     */
+    public function testConstruct()
+    {
+        $bookmarkName = 'test';
+        $oBookmark = new Bookmark($bookmarkName);
+
+        $this->assertInstanceOf('PhpOffice\\PhpWord\\Element\\Bookmark', $oBookmark);
+        $this->assertEquals($bookmarkName, $oBookmark->getName());
+    }
+}
diff --git a/tests/PhpWord/Element/CommentTest.php b/tests/PhpWord/Element/CommentTest.php
index a6388588..fd2c814d 100644
--- a/tests/PhpWord/Element/CommentTest.php
+++ b/tests/PhpWord/Element/CommentTest.php
@@ -80,4 +80,24 @@ class CommentTest extends \PHPUnit_Framework_TestCase
         $oComment->setRelationId($iVal);
         $this->assertEquals($iVal, $oComment->getRelationId());
     }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     */
+    public function testExceptionOnCommentStartOnComment()
+    {
+        $dummyComment = new Comment('Test User', new \DateTime(), 'my_initials');
+        $oComment = new Comment('Test User', new \DateTime(), 'my_initials');
+        $oComment->setCommentRangeStart($dummyComment);
+    }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     */
+    public function testExceptionOnCommentEndOnComment()
+    {
+        $dummyComment = new Comment('Test User', new \DateTime(), 'my_initials');
+        $oComment = new Comment('Test User', new \DateTime(), 'my_initials');
+        $oComment->setCommentRangeEnd($dummyComment);
+    }
 }
diff --git a/tests/PhpWord/Element/ObjectTest.php b/tests/PhpWord/Element/ObjectTest.php
index 87af5c5c..51ed19b5 100644
--- a/tests/PhpWord/Element/ObjectTest.php
+++ b/tests/PhpWord/Element/ObjectTest.php
@@ -26,9 +26,22 @@ namespace PhpOffice\PhpWord\Element;
 class ObjectTest extends \PHPUnit_Framework_TestCase
 {
     /**
-     * Create new instance with supported files
+     * Create new instance with supported files, 4 character extention
      */
     public function testConstructWithSupportedFiles()
+    {
+        $src = __DIR__ . '/../_files/documents/reader.docx';
+        $oObject = new Object($src);
+
+        $this->assertInstanceOf('PhpOffice\\PhpWord\\Element\\Object', $oObject);
+        $this->assertInstanceOf('PhpOffice\\PhpWord\\Style\\Image', $oObject->getStyle());
+        $this->assertEquals($src, $oObject->getSource());
+    }
+
+    /**
+     * Create new instance with supported files
+     */
+    public function testConstructWithSupportedFilesLong()
     {
         $src = __DIR__ . '/../_files/documents/sheet.xls';
         $oObject = new Object($src);
diff --git a/tests/PhpWord/Element/SectionTest.php b/tests/PhpWord/Element/SectionTest.php
index 8cd2961f..aebfc9b7 100644
--- a/tests/PhpWord/Element/SectionTest.php
+++ b/tests/PhpWord/Element/SectionTest.php
@@ -129,6 +129,17 @@ class SectionTest extends \PHPUnit_Framework_TestCase
         $this->assertFalse($object->hasDifferentFirstPage());
     }
 
+    /**
+     * @covers ::addHeader
+     * @covers ::hasDifferentFirstPage
+     */
+    public function testHasDifferentFirstPageFooter()
+    {
+        $object = new Section(1);
+        $object->addFooter(Header::FIRST);
+        $this->assertTrue($object->hasDifferentFirstPage());
+    }
+
     /**
      * @covers ::addHeader
      * @covers ::hasDifferentFirstPage
diff --git a/tests/PhpWord/Metadata/SettingsTest.php b/tests/PhpWord/Metadata/SettingsTest.php
index 6f7ad9b6..6f493d04 100644
--- a/tests/PhpWord/Metadata/SettingsTest.php
+++ b/tests/PhpWord/Metadata/SettingsTest.php
@@ -116,6 +116,24 @@ class SettingsTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals(ProofState::DIRTY, $oSettings->getProofState()->getSpelling());
     }
 
+    /**
+     * @expectedException \InvalidArgumentException
+     */
+    public function testWrongProofStateGrammar()
+    {
+        $proofState = new ProofState();
+        $proofState->setGrammar('wrong');
+    }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     */
+    public function testWrongProofStateSpelling()
+    {
+        $proofState = new ProofState();
+        $proofState->setSpelling('wrong');
+    }
+
     /**
      * Zoom as percentage
      */