public void PageSourceContainsCaseTest()
{
const string ExpectedText = "HTTP status codes are a standard set of numbers used to communicate from a web server";
var statusCodes = new InternetPage(this.DriverContext)
.OpenHomePage()
.GoToStatusCodesPage();
Assert.IsTrue(statusCodes.IsTextExistedInPageSource(ExpectedText), "Text is not present!");
}