Unable to test Message Toast

[Parv17k]

I am unable to test Message toast

After clicking the button, I am getting a toast with success message. But I cannot test the text in toast element.

Reference code :: ```

var toast =element( by.control({ controlType: "sap.m.MessageToast"}));
expect(toast .getText()).toBe("Success!!");

However, I am getting the error: 

Expectation FAILED: NoSuchElementError: No element found using locator: By(css selector, .sapMMessageToast)