moirai-pal 0.9.2

Platform Abstraction Layer for Moirai async I/O operations
Documentation 
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//! The documented overlapping navigation sequence cannot admit an old document.

use super::*;

fn trace() -> tracing::subscriber::DefaultGuard {
    tracing::subscriber::set_default(
        tracing_subscriber::fmt()
            .with_test_writer()
            .with_span_events(tracing_subscriber::fmt::format::FmtSpan::FULL)
            .finish(),
    )
}

#[test]
fn overlapping_navigation_ids_preserve_the_current_selected_document_phase() {
    let _trace = trace();
    let _test = tracing::info_span!("startup_navigation_overlap").entered();
    let mut state = tracing::info_span!("arrange").in_scope(|| {
        State::new(Selection {
            start_uri: "https://startup.invalid/index.html".to_owned(),
            selectors: vec!["#status".to_owned()],
        })
    });
    tracing::info_span!("act").in_scope(|| {
        state.navigation_started(1, "https://startup.invalid/index.html");
        state.navigation_started(2, "https://startup.invalid/other.html");
    });
    tracing::info_span!("assert").in_scope(|| {
        assert!(!state.navigation_completed(1, true));
        assert!(!state.dom_loaded(1));
        assert_eq!(state.navigation, Some(2));
        assert_eq!(state.document, Document::Outside);
        assert_eq!(state.slot.snapshot().generation, 3);
    });
    tracing::info_span!("act")
        .in_scope(|| state.navigation_started(3, "https://startup.invalid/index.html"));
    tracing::info_span!("assert").in_scope(|| {
        assert!(!state.navigation_completed(2, false));
        assert!(!state.dom_loaded(2));
        assert_eq!(state.document, Document::Loading);
        assert_eq!(state.navigation, Some(3));
        assert!(state.dom_loaded(3));
        assert_eq!(state.document, Document::Available);
        assert!(state.navigation_completed(3, true));
        assert_eq!(state.document, Document::Available);
        assert_eq!(state.slot.snapshot().generation, 4);
    });
    tracing::info_span!("act").in_scope(|| state.invalidate_nodes());
    tracing::info_span!("assert").in_scope(|| {
        assert_eq!(state.document, Document::Available);
        assert_eq!(state.navigation, Some(3));
        assert_eq!(state.slot.snapshot().generation, 5);
        assert_eq!(state.last, vec![None]);
    });
}