if test.expectedErr != noAPIErr {
			errBytes, err := io.ReadAll(rec.Result().Body)
			if err != nil {
				t.Fatalf("Test %d %s Failed to read error response from upload part request %s/%s: <ERROR> %v",
					i+1, instanceType, bucketName, testObject, err)
			}
			var errXML APIErrorResponse
			err = xml.Unmarshal(errBytes, &errXML)
			if err != nil {