Is your feature request related to a problem? Please describe.
During testing I expected github.com/kataras/iris/v12/httptest.Response.Status to fail the test immediately if a different status is received. Therefore on subsequent lines I performed some operations that could result in a panic if let's say the response code was not as expected. It turns that it does not fail fast, it simply f

If not for some particular exceptions, the status code returned from our WebAPI on error is always 500, regardless of the kind of error.

If an object already exists, for example, it should be returned as 409. If the object does not pass the schema validation, it should be a 415.

Go through the whole WebAPI and verify that the status codes are being returned correctly.

Hint: Error cl