polyoxide-binance 0.48.0

Rust client library for Binance USDⓈ-M futures and spot market data and streams
Documentation 
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//! The full header set one request goes out with (AD-18).
//!
//! The expected set is a literal, never read from the client under test. CI
//! runs this file in this crate alone with `--no-default-features --features
//! spot`, again in the workspace build, and again beside the umbrella with
//! `--features polyoxide/full`, so a change to what a client sends fails here
//! in one of the three builds, whether a code default (0.37.0's gzip
//! regression was core's builder turning gzip off) or a reqwest feature
//! another member, or another venue's module, switches on.

use polyoxide_binance::spot::Spot;
use polyoxide_test_support::query::headers_sent;

/// One unauthenticated `GET /api/v3/time`, and the headers it carried.
#[tokio::test]
async fn a_time_request_sends_exactly_the_default_headers() {
    let mut base = String::new();
    let headers = headers_sent("/api/v3/time", |url| {
        base = url.clone();
        async move {
            let spot = Spot::builder().base_url(url).build().unwrap();
            let _ = spot.health().time().send().await;
        }
    })
    .await;

    let host = base.trim_start_matches("http://");
    assert_eq!(
        headers,
        [
            ("accept", "*/*"),
            ("accept-encoding", "gzip"),
            ("host", host)
        ]
        .map(|(name, value)| (name.to_owned(), value.to_owned())),
        "`health().time` sent a header set other than reqwest's defaults with gzip"
    );
}