Hmbown/CodeWhale · error

expected an image block, got

Error message

expected an image block, got {other:?}

What it means

Test-only panic: after matching ContentBlock::Text in expands_a_placeholder_into_an_image_block, the first block did not match any expected arm; the expansion emitted something other than the opening text tag naming the attached image path.

Solutions

1. Ensure expand_attachment_blocks emits the open text tag as blocks[0] before the image block
2. Inspect expanded.notices for attachment parse errors that change block shape
3. Adjust the test's expected ordering only if the contract legitimately changed

When it happens

Trigger: Thrown at crates/tui/src/image_attach/tests.rs:287 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of Hmbown/CodeWhale@433685b202 (2026-09-15). Data as JSON: /api/errors/7ee4d8075c93605d. Report an issue: GitHub.

Appendix: source

Thrown at crates/tui/src/image_attach/tests.rs:287

    let text = format!("look at this\n[Attached image: {}]", path.display());

    let expanded = expand_attachment_blocks(&text);

    assert!(expanded.notices.is_empty(), "{expanded:?}");
    // Bracketed: open tag naming the path, the image, close tag.
    assert_eq!(expanded.blocks.len(), 3, "{expanded:?}");
    match &expanded.blocks[0] {
        ContentBlock::Text { text, .. } => {
            assert!(text.starts_with("<image path=\""), "{text}");
            assert!(text.contains("shot.png"), "{text}");
        }
        other => panic!("expected an opening tag, got {other:?}"),
    }
    match &expanded.blocks[1] {
        ContentBlock::ImageUrl { image_url } => {
            assert!(image_url.url.starts_with("data:image/png;base64,"));
        }
        other => panic!("expected an image block, got {other:?}"),
    }
    assert_eq!(
        expanded.blocks[2],
        ContentBlock::Text {
            text: "</image>".to_string(),
            cache_control: None
        }
    );
}

#[test]
fn expands_multiple_placeholders_in_order() {
    let dir = tempfile::tempdir().expect("tempdir");
    let first = write_png(dir.path(), "one.png");
    let second = write_png(dir.path(), "two.png");
    std::fs::write(&second, [0xff, 0xd8, 0xff, 0xe0, 0x01]).expect("write jpeg");
    let text = format!(
        "[Attached image: {}]\nand\n[Attached image: {}]",

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