Assert.assertTrue(tmpEl.getAttribute("class").contains("selected"),"The folder should be highlighted.");
Assert.assertFalse(dialog.isDisplayed(),buttonName+" dialog should close.");
Assert.assertEquals(hoverTxt, tabName,"The website not leads to "+tabName+" tab.");
Assert.assertNotEquals(null, checkIfFolderExist(folderName), "The new folder ‘"+folderName+"‘should be listed in the first row of Folder.");
Assert.assertNull(batch, "The batch can be search out");
[Selenium] The commonly used validation method
原文：http://www.cnblogs.com/feifeidxl/p/4450539.html