@Test public void from() { MockServerHttpRequest request = MockServerHttpRequest.post("http://example.com") .header("foo", "bar") .build(); MockServerWebExchange exchange = MockServerWebExchange.from(request); ServerRequest other = ServerRequest.create(exchange, HandlerStrategies.withDefaults().messageReaders()); Flux<DataBuffer> body = Flux.just("baz") .map(s -> s.getBytes(StandardCharsets.UTF_8)) .map(dataBufferFactory::wrap); ServerRequest result = ServerRequest.from(other) .method(HttpMethod.HEAD) .headers(httpHeaders -> httpHeaders.set("foo", "baar")) .cookies(cookies -> cookies.set("baz", ResponseCookie.from("baz", "quux").build())) .body(body) .build(); assertEquals(HttpMethod.HEAD, result.method()); assertEquals(1, result.headers().asHttpHeaders().size()); assertEquals("baar", result.headers().asHttpHeaders().getFirst("foo")); assertEquals(1, result.cookies().size()); assertEquals("quux", result.cookies().getFirst("baz").getValue()); StepVerifier.create(result.bodyToFlux(String.class)) .expectNext("baz") .verifyComplete(); }