#![no_main]

use h2_support::prelude::*;

use libfuzzer_sys::{arbitrary::Arbitrary, fuzz_target};

#[derive(Debug, Arbitrary)]

struct HttpSpec {

    uri: Vec<u8>,

    header_name: Vec<u8>,

    header_value: Vec<u8>,

}

async fn fuzz_entry(inp: HttpSpec) {

    if let Ok(req) = Request::builder()

        .uri(&inp.uri[..])

        .header(&inp.header_name[..], &inp.header_value[..])

        .body(())

    {

        let (io, mut _srv) = mock::new();

        let (mut client, _h2) = client::Builder::new()

            .handshake::<_, Bytes>(io)

            .await

            .unwrap();

        // this could still trigger a user error:

        // - if the uri isn't absolute

        // - if the header name isn't allowed in http2 (like connection)

        let _ = client.send_request(req, true);

    }

}

fuzz_target!(|inp: HttpSpec| {

    let rt = tokio::runtime::Runtime::new().unwrap();

    rt.block_on(fuzz_entry(inp));

});