}

			// Prepare the checksum map with appropriate headers
			m := chksm.AsMap()
			m[xhttp.AmzChecksumAlgo] = chksm.Type.String() // Set the algorithm explicitly
			if chksm.Type.FullObjectRequested() {
				m[xhttp.AmzChecksumType] = xhttp.AmzChecksumTypeFullObject
			} else {
				m[xhttp.AmzChecksumType] = xhttp.AmzChecksumTypeComposite
			}

			w := httptest.NewRecorder()
			AddChecksumHeader(w, m)