use httpmock::prelude::*; use regex::Regex; use reqwest::blocking::Client; #[test] fn body_test() { // Arrange let server = MockServer::start(); let m = server.mock(|when, then| { when.method(POST) .path("/books") .body("The Fellowship of the Ring") .body_includes("Ring") .body_matches(Regex::new("Fellowship").unwrap()); then.status(201).body("The Lord of the Rings"); }); // Act: Send the request let client = Client::new(); let response = client .post(&format!("http://{}/books", server.address())) .body("The Fellowship of the Ring") .send() .unwrap(); // Assert m.assert(); assert_eq!(response.status(), 201); }