addCustomHeaders(req, testCase.headers)

		// Inject faults if specified in testCase.fault
		switch testCase.fault {
		case MissingContentLength:
			req.ContentLength = -1
			req.TransferEncoding = []string{}
		case TooBigObject:
			req.ContentLength = globalMaxObjectSize + 1
		}
		// Since `apiRouter` satisfies `http.Handler` it has a ServeHTTP to execute the logic of the handler.