#testing-http #api-testing #e2e #http-api #test

grillon

Grillon offers an elegant and natural way to approach API testing in Rust

8 releases (5 breaking)

0.6.0 Dec 6, 2024
0.5.0 Oct 27, 2024
0.5.0-alpha.1 Sep 4, 2023
0.4.0 Jan 26, 2023
0.1.0 Dec 10, 2021

#97 in Testing

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509 downloads per month

MIT/Apache

195KB
4.5K SLoC

Grillon

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Grillon offers an elegant and natural way to approach API testing in Rust.

  • Elegant, intuitive and expressive API
  • Built-in testing functions
  • Extensible

Please note that the API is subject to a lot of changes until the v1.0.0.

Documentation

Getting started

Before you begin, be sure to read the book to learn more about configuring logs and assertions!

You need Tokio as asynchronous runtime. Generally, testing libs are used in unit or integration tests so let's declare grillon as a dev-dependency.

Add grillon to Cargo.toml

[dev-dependencies]
grillon = "0.6.0"
tokio = { version = "1", features = ["macros"] }

Then use grillon :

use grillon::{dsl::*, dsl::http::*, json, Grillon, StatusCode, Result};
use grillon::header::{HeaderValue, CONTENT_LENGTH, CONTENT_TYPE};
use grillon::Assert;

#[tokio::test]
async fn end_to_end_test() -> Result<()> {
    Grillon::new("https://jsonplaceholder.typicode.com")?
        .post("posts")
        .payload(json!({
            "title": "foo",
            "body": "bar",
            "userId": 1
        }))
        .assert()
        .await
        .status(is_success())
        .status(is(201))
        .response_time(is_less_than(700))
        .json_body(is(json!({
            "id": 101,
        })))
        .json_body(schema(json!({
            "properties": {
                "id": { "type": "number" }
            }
        })))
        .json_path("$.id", is(json!(101)))
        .header(CONTENT_TYPE, is("application/json; charset=utf-8"))
        .headers(contains(vec![
            (
                CONTENT_TYPE,
                HeaderValue::from_static("application/json; charset=utf-8"),
            ),
            (CONTENT_LENGTH, HeaderValue::from_static("15")),
        ]))
        .assert_fn(|assert| {
            let Assert {
                headers,
                status,
                json,
                ..
            } = assert.clone();

            assert!(!headers.unwrap().is_empty());
            assert!(status.unwrap() == StatusCode::CREATED);
            assert!(json.is_some());

            println!("Json response : {:#?}", assert.json);
        });

    Ok(())
}

Dependencies

~12–25MB
~381K SLoC