httpmock 0.5.8

HTTP mocking library for Rust
Documentation 
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extern crate httpmock;

use isahc::{prelude::*, Request};

use httpmock::Method::POST;
use httpmock::{Mock, MockServer, Regex};

#[test]
fn body_test() {
    // Arrange
    let _ = env_logger::try_init();
    let server = MockServer::start();

    let m = Mock::new()
        .expect_method(POST)
        .expect_path("/books")
        .expect_body("The Fellowship of the Ring")
        .expect_body_contains("Ring")
        .expect_body_matches(Regex::new("Fellowship").unwrap())
        .return_status(201)
        .return_body("The Lord of the Rings")
        .create_on(&server);

    // Act: Send the request and deserialize the response to JSON
    let response = Request::post(&format!("http://{}/books", server.address()))
        .body("The Fellowship of the Ring")
        .unwrap()
        .send()
        .unwrap();

    // Assert
    m.assert();
    assert_eq!(response.status(), 201);
}