satteri-pulldown-cmark 0.6.3

use satteri_pulldown_cmark::{Options, parse};

const ISSUE_MARKDOWN: &str = "This is an MDX page! You can access it using `/mdx`.

## Images with Markdown syntax

![an image](https://placehold.co/600x400)

## Fenced code

```js
const a = 2;
const b = 4;
```
";

#[test]
fn source_is_the_verbatim_input() {
    let (arena, _) = parse(ISSUE_MARKDOWN, Options::empty());
    assert_eq!(arena.source(), ISSUE_MARKDOWN);
    // URL and inline-code text appear once in the input but are duplicated in
    // the heap past the boundary, so count occurrences rather than `contains`.
    assert!(arena.string_pool().len() > ISSUE_MARKDOWN.len());
    assert_eq!(arena.source().matches("placehold.co").count(), 1);
    assert!(arena.string_pool().matches("placehold.co").count() > 1);
    assert_eq!(arena.source().matches("/mdx").count(), 1);
}

#[test]
fn smart_punctuation_does_not_duplicate_into_source() {
    let input = "page d'accueil\n";
    let (arena, _) = parse(input, Options::ENABLE_SMART_QUOTES);
    assert_eq!(arena.source(), input);
}

#[test]
fn a_leading_bom_is_outside_the_source_and_the_position_space() {
    let (with_bom, _) = parse("\u{feff}# h\n\ntext\n", Options::empty());
    let (without_bom, _) = parse("# h\n\ntext\n", Options::empty());
    assert_eq!(with_bom.source(), "# h\n\ntext\n");
    for id in 0..without_bom.len() as u32 {
        let (a, b) = (with_bom.get_node(id), without_bom.get_node(id));
        assert_eq!(
            (a.start_offset, a.start_line, a.start_column, a.end_offset),
            (b.start_offset, b.start_line, b.start_column, b.end_offset),
            "node {id}"
        );
    }
}

#[test]
fn mdast_to_hast_conversion_preserves_the_source_boundary() {
    let (mdast, _) = parse(ISSUE_MARKDOWN, Options::empty());
    let hast = satteri_ast::hast::mdast_arena_to_hast_arena(&mdast);
    // HAST reuses the MDAST pool for StringRefs; its source view must still match.
    assert_eq!(hast.source(), ISSUE_MARKDOWN);
}