public void SelectItem_ByIndexOnHtmlComboBox_Succeeds() { //Arrange using (var webPage = new TempWebPage( @"<html> <head> <title>test</title> </head> <body> <select id=""selectId""> <option>Cricket</option> <option>Football</option> <option>Tennis</option> </select> </body> </html>")) { var browserWindow = BrowserWindow.Launch(webPage.FilePath); //Act HtmlComboBox comboBox = browserWindow.Find <HtmlComboBox>(By.Id("selectId")); comboBox.SelectIndex(1); //Assert Assert.AreEqual("Football", comboBox.SelectedItem); browserWindow.Close(); } }