Index: Riskeer/Common/test/Riskeer.Common.Forms.Test/TypeConverters/NoValueDoubleConverterTest.cs
===================================================================
diff -u -r6f7079fb3e810b6e9eb9cf50f3ee8edc48e2e9b5 -r9df49f23c3b91af929be0b43ca0dfa8f3185cada
--- Riskeer/Common/test/Riskeer.Common.Forms.Test/TypeConverters/NoValueDoubleConverterTest.cs	(.../NoValueDoubleConverterTest.cs)	(revision 6f7079fb3e810b6e9eb9cf50f3ee8edc48e2e9b5)
+++ Riskeer/Common/test/Riskeer.Common.Forms.Test/TypeConverters/NoValueDoubleConverterTest.cs	(.../NoValueDoubleConverterTest.cs)	(revision 9df49f23c3b91af929be0b43ca0dfa8f3185cada)
@@ -161,6 +161,24 @@
         }
 
         [Test]
+        public void ConvertFrom_Object_ThrowNotSupportedException()
+        {
+            // Setup
+            var mocks = new MockRepository();
+            var context = mocks.Stub<ITypeDescriptorContext>();
+            mocks.ReplayAll();
+
+            var converter = new NoValueDoubleConverter();
+
+            // Call
+            void Call() => converter.ConvertFrom(context, CultureInfo.CurrentCulture, new object());
+
+            // Assert
+            Assert.Throws<NotSupportedException>(Call);
+            mocks.VerifyAll();
+        }
+
+        [Test]
         public void CanConvertTo_ToString_ReturnTrue()
         {
             // Setup