Add failing test for a sequence of drag and drop by offset and element

The test would fail on IE11 + Win 10:

Failed : OpenQA.Selenium.Interactions.DragAndDropTest.DragAndDropRelativeAndToElement
  Expected: {X=8,Y=8}
  But was:  {X=8,Y=26}

Signed-off-by: Jim Evans <james.h.evans.jr@gmail.com>

Author: p0deje

dotnet/test/common/Interactions/DragAndDropTest.cs

@@ -56,6 +56,22 @@ public void DragAndDropToElement()
             Assert.AreEqual(img1.Location, img2.Location);
         }
 
+        [Test]
+        [Category("Javascript")]
+        [IgnoreBrowser(Browser.HtmlUnit)]
+        [IgnoreBrowser(Browser.Android, "Mobile browser does not support drag-and-drop")]
+        [IgnoreBrowser(Browser.IPhone, "Mobile browser does not support drag-and-drop")]
+        [IgnoreBrowser(Browser.Safari, "Advanced User Interactions not implmented on Safari")]
+        public void DragAndDropRelativeAndToElement()
+        {
+            driver.Url = dragAndDropPage;
+            IWebElement img1 = driver.FindElement(By.Id("test1"));
+            IWebElement img2 = driver.FindElement(By.Id("test2"));
+            Actions actionProvider = new Actions(driver);
+            actionProvider.DragAndDropToOffset(img1, 100, 100).DragAndDrop(img2, img1).Perform();
+            Assert.AreEqual(img1.Location, img2.Location);
+        }
+
         [Test]
         [Category("Javascript")]
         [IgnoreBrowser(Browser.Safari, "Advanced User Interactions not implmented on Safari")]