--- a/ChangeLog	Tue May 20 09:12:11 2014 +0200
+++ b/ChangeLog	Fri May 23 08:16:04 2014 +0200
@@ -1,3 +1,8 @@
+2014-05-23  Pavel Tisnovsky  <ptisnovs@redhat.com>
+
+	* src/org/RhinoTests/SimpleBindingsTest.java:
+	Ten new tests added into SimpleBindingsTest.
+
 2014-05-20  Pavel Tisnovsky  <ptisnovs@redhat.com>
 
 	* src/org/RhinoTests/SimpleScriptContextTest.java:

--- a/src/org/RhinoTests/SimpleBindingsTest.java	Tue May 20 09:12:11 2014 +0200
+++ b/src/org/RhinoTests/SimpleBindingsTest.java	Fri May 23 08:16:04 2014 +0200
@@ -217,6 +217,146 @@
     }
 
     /**
+     * Test for method containsKey(String)
+     */
+    protected void testContainsKeyNegative6() throws Exception {
+        SimpleBindings simpleBindings = new SimpleBindings(new HashMap<String, Object>());
+        try {
+            simpleBindings.containsKey(null);
+        }
+        catch (NullPointerException e) {
+            return;
+        }
+        throw new Exception("NPE did not thrown as expected");
+    }
+
+    /**
+     * Test for method containsKey(String)
+     */
+    protected void testContainsKeyNegative7() throws Exception {
+        SimpleBindings simpleBindings = new SimpleBindings(new HashMap<String, Object>());
+        try {
+            simpleBindings.containsKey("");
+        }
+        catch (IllegalArgumentException e) {
+            return;
+        }
+        throw new Exception("IllegalArgumentException did not thrown as expected");
+    }
+
+    /**
+     * Test for method containsKey(String)
+     */
+    protected void testContainsKeyNegative8() throws Exception {
+        SimpleBindings simpleBindings = new SimpleBindings(new HashMap<String, Object>());
+        try {
+            simpleBindings.containsKey(new Integer(42));
+        }
+        catch (ClassCastException e) {
+            return;
+        }
+        throw new Exception("ClassCastException did not thrown as expected");
+    }
+
+    /**
+     * Test for method containsKey(String)
+     */
+    protected void testContainsKeyNegative9() throws Exception {
+        SimpleBindings simpleBindings = new SimpleBindings(new HashMap<String, Object>());
+        try {
+            simpleBindings.containsKey(java.awt.Color.GREEN);
+        }
+        catch (ClassCastException e) {
+            return;
+        }
+        throw new Exception("ClassCastException did not thrown as expected");
+    }
+
+    /**
+     * Test for method containsKey(String)
+     */
+    protected void testContainsKeyNegative10() throws Exception {
+        SimpleBindings simpleBindings = new SimpleBindings(new HashMap<String, Object>());
+        try {
+            simpleBindings.containsKey(this);
+        }
+        catch (ClassCastException e) {
+            return;
+        }
+        throw new Exception("ClassCastException did not thrown as expected");
+    }
+
+    /**
+     * Test for method containsKey(String)
+     */
+    protected void testContainsKeyNegative11() throws Exception {
+        SimpleBindings simpleBindings = new SimpleBindings(new TreeMap<String, Object>());
+        try {
+            simpleBindings.containsKey(null);
+        }
+        catch (NullPointerException e) {
+            return;
+        }
+        throw new Exception("NPE did not thrown as expected");
+    }
+
+    /**
+     * Test for method containsKey(String)
+     */
+    protected void testContainsKeyNegative12() throws Exception {
+        SimpleBindings simpleBindings = new SimpleBindings(new TreeMap<String, Object>());
+        try {
+            simpleBindings.containsKey("");
+        }
+        catch (IllegalArgumentException e) {
+            return;
+        }
+        throw new Exception("IllegalArgumentException did not thrown as expected");
+    }
+
+    /**
+     * Test for method containsKey(String)
+     */
+    protected void testContainsKeyNegative13() throws Exception {
+        SimpleBindings simpleBindings = new SimpleBindings(new TreeMap<String, Object>());
+        try {
+            simpleBindings.containsKey(new Integer(42));
+        }
+        catch (ClassCastException e) {
+            return;
+        }
+        throw new Exception("ClassCastException did not thrown as expected");
+    }
+
+    /**
+     * Test for method containsKey(String)
+     */
+    protected void testContainsKeyNegative14() throws Exception {
+        SimpleBindings simpleBindings = new SimpleBindings(new TreeMap<String, Object>());
+        try {
+            simpleBindings.containsKey(java.awt.Color.GREEN);
+        }
+        catch (ClassCastException e) {
+            return;
+        }
+        throw new Exception("ClassCastException did not thrown as expected");
+    }
+
+    /**
+     * Test for method containsKey(String)
+     */
+    protected void testContainsKeyNegative15() throws Exception {
+        SimpleBindings simpleBindings = new SimpleBindings(new TreeMap<String, Object>());
+        try {
+            simpleBindings.containsKey(this);
+        }
+        catch (ClassCastException e) {
+            return;
+        }
+        throw new Exception("ClassCastException did not thrown as expected");
+    }
+
+    /**
      * Entry point to this test case.
      *
      * @param args parameters passed from command line