magi-code 0.96.1

Repository-aware CLI coding agent for terminal work
Documentation 
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use super::profiling_support::visible_scrollback_visual_lines;
use super::*;
use crate::output::OutputEvent;
use crate::rendering::{RenderInputKind, render};

#[test]
#[ignore = "manual projection workload; reports wall time, not physical terminal latency; run with --release --ignored --nocapture"]
fn streaming_viewport_large_response_workload() {
    // Separate states prevent the viewport from warming the reference's card cache.
    // Both receive identical events; only projection/wrapping/measurement is timed.
    let viewport_sample = |state: &MissionControlState, scrollback| {
        let start = std::time::Instant::now();
        let visible = visible_scrollback_visual_lines(state, 80, 24, scrollback);
        assert!(visible.lines.len() <= 24);
        drop(std::hint::black_box(visible));
        start.elapsed().as_micros()
    };
    let reference_sample = |state: &MissionControlState| {
        let start = std::time::Instant::now();
        let mut lines = Vec::new();
        for span in project_card_spans(state) {
            let mut card = (*span.card).clone();
            if streaming::is_windowed(&card) {
                card.body_lines = render(&card.body, RenderInputKind::Plain);
            }
            lines.extend(card_visual_lines_uncached(
                state,
                &card,
                span.first_entry_index,
                state.is_transcript_focused(),
                80,
                span.first_entry_index > 0,
                None,
            ));
        }
        lines.push(transcript_bottom_padding_visual_line(80, state.theme));
        annotate_copy_byte_ranges(&mut lines);
        let rows: usize = lines.iter().map(|line| visual_line_rows(line, 80)).sum();
        drop(std::hint::black_box((lines, rows)));
        start.elapsed().as_micros()
    };
    for (label, body) in [
        ("small_ascii", "streaming response\n".repeat(8)),
        ("small_unicode", "streaming 界 response\n".repeat(8)),
        (
            "large_ascii",
            "streaming response with completed rows\n".repeat(10000),
        ),
        (
            "large_unicode",
            "streaming 界 response with completed rows\n".repeat(10000),
        ),
        (
            "unbroken_unicode",
            "界 cafe\u{301} 👩\u{200d}💻 ".repeat(12000),
        ),
    ] {
        let source_bytes = body.len();
        let mut viewport_state = MissionControlState::default();
        let mut reference_state = MissionControlState::default();
        let mut rebuild_state = MissionControlState::default();
        viewport_state.apply_output_event(&OutputEvent::AssistantDelta { text: body.clone() });
        rebuild_state.apply_output_event(&OutputEvent::AssistantDelta { text: body.clone() });
        reference_state.apply_output_event(&OutputEvent::AssistantDelta { text: body });
        // Report initial indexing separately rather than burying it in the
        // median. Neither path warms the other; alternate subsequent order.
        let viewport_cold = viewport_sample(&viewport_state, 0);
        let reference_cold = reference_sample(&reference_state);
        let rebuild_cold = viewport_sample(&rebuild_state, 0);
        let mut viewport_times = Vec::new();
        let mut reference_times = Vec::new();
        let mut rebuild_times = Vec::new();
        for index in 0..30 {
            let text = if label == "unbroken_unicode" {
                // No completed prefix: this case must keep rebuilding safely.
                format!(" chunk {index} 界")
            } else if label.ends_with("ascii") {
                format!("\nchunk {index}")
            } else {
                format!("\nchunk {index} 界")
            };
            viewport_state.apply_output_event(&OutputEvent::AssistantDelta { text: text.clone() });
            rebuild_state.apply_output_event(&OutputEvent::AssistantDelta { text: text.clone() });
            // A direct control for this optimization: identical sparse path,
            // but discard only the previous-revision handoff before wrapping.
            rebuild_state.transcript_cache.borrow_mut().streaming_reuse = None;
            reference_state.apply_output_event(&OutputEvent::AssistantDelta { text });
            let scrollback = if index % 2 == 0 { 4000 } else { 0 };
            let (viewport, rebuild, reference) = match index % 3 {
                0 => {
                    let viewport = viewport_sample(&viewport_state, scrollback);
                    let rebuild = viewport_sample(&rebuild_state, scrollback);
                    (viewport, rebuild, reference_sample(&reference_state))
                }
                1 => {
                    let rebuild = viewport_sample(&rebuild_state, scrollback);
                    let reference = reference_sample(&reference_state);
                    (
                        viewport_sample(&viewport_state, scrollback),
                        rebuild,
                        reference,
                    )
                }
                _ => {
                    let reference = reference_sample(&reference_state);
                    let viewport = viewport_sample(&viewport_state, scrollback);
                    (
                        viewport,
                        viewport_sample(&rebuild_state, scrollback),
                        reference,
                    )
                }
            };
            viewport_times.push(viewport);
            reference_times.push(reference);
            rebuild_times.push(rebuild);
        }
        viewport_times.sort_unstable();
        reference_times.sort_unstable();
        rebuild_times.sort_unstable();
        // A local full-format algorithm, NOT a historical-binary comparison.
        eprintln!(
            "streaming_viewport_large_response case={label} bytes={source_bytes} frames=30 viewport_cold_us={viewport_cold} rebuild_cold_us={rebuild_cold} full_reference_cold_us={reference_cold} viewport_median_us={} rebuild_median_us={} full_reference_median_us={} width=80 height=24 physical_terminal=false",
            viewport_times[15], rebuild_times[15], reference_times[15],
        );
    }
}

#[test]
#[ignore = "manual first-display/resize workload; projection only; run with --release --ignored --nocapture"]
fn profile_large_response_first_display_and_resize() {
    // Fresh display state per sample; ingestion and checks stay outside timing.
    // Returning to width 80 tests retained-width reuse, not cache invalidation.
    let fixtures = [
        (
            "large_ascii",
            "streaming response with completed rows\n".repeat(10000),
        ),
        (
            "large_unicode",
            "streaming 界 response with completed rows\n".repeat(10000),
        ),
        (
            "unbroken_unicode",
            "界 cafe\u{301} 👩\u{200d}💻 ".repeat(12000),
        ),
    ];
    for sample in 0..10 {
        // Rotate fixture order so Unicode is not always measured second.
        for offset in 0..fixtures.len() {
            let (label, body) = &fixtures[(sample + offset) % fixtures.len()];
            let mut state = MissionControlState::default();
            state.apply_output_event(&OutputEvent::AssistantDelta { text: body.clone() });
            let mut timings = Vec::new();
            let mut original_text = None;
            for width in [80, 80, 120, 120, 40, 80] {
                let start = std::time::Instant::now();
                let visible = visible_scrollback_visual_lines(&state, width, 24, 0);
                let elapsed = start.elapsed().as_secs_f64() * 1000.0;
                assert!(visible.lines.len() <= 24 && visible.has_overflow_above);
                let text = visible
                    .lines
                    .iter()
                    .map(|line| line.copy_text.as_str())
                    .collect::<String>();
                let expected_body = if *label == "unbroken_unicode" {
                    "cafe\u{301}"
                } else {
                    "streaming"
                };
                assert!(
                    text.contains(expected_body),
                    "latest response body must remain visible after resize"
                );
                if width == 80 {
                    if let Some(original) = &original_text {
                        assert_eq!(
                            &text, original,
                            "returning to a retained width must preserve visible text"
                        );
                    } else {
                        original_text = Some(text);
                    }
                }
                timings.push(elapsed);
                drop(std::hint::black_box(visible));
            }
            println!(
                "first_display_resize {}",
                serde_json::json!({
                    "schema": 1, "sample": sample, "fixture": label, "source_bytes": body.len(),
                    "height": 24, "widths": [80, 80, 120, 120, 40, 80],
                    "phases": ["first_80", "cached_80", "first_120", "cached_120", "first_40", "retained_80"],
                    "projection_ms": timings, "physical_terminal": false,
                })
            );
        }
    }
}