public void IncorrectCredentialsLogin()
{
var userName = RandomHelper.CreateRandomAlphaNumeric(8);
var password = RandomHelper.CreateRandomAlphaNumeric(8);
var expectedErrorMessage = "Incorrect username/password";
loginPage.SetUserName(userName);
loginPage.SetPassword(password);
loginPage.ClickLogin();
var actualErrorMessage = loginPage.GetErrorMessageText();
Assert.AreEqual(actualErrorMessage, expectedErrorMessage, "Error message is not same that expected");
}