from imwald.core.md_render import markdown_html_fragment, markdown_plain_summary, preprocess_standalone_image_urls


def test_plain_summary_strips_markdown_noise() -> None:
    s = markdown_plain_summary("# Title\n\nHello **world**", max_len=80)
    assert "Title" in s and "world" in s
    assert "**" not in s and "#" not in s


def test_markdown_renders_strong() -> None:
    html = markdown_html_fragment("Hello **world**")
    assert "<strong>world</strong>" in html or "<b>world</b>" in html


def test_markdown_fenced_code() -> None:
    html = markdown_html_fragment("```\n1 + 1\n```")
    assert "<pre>" in html and "<code>" in html


def test_preprocess_turns_bare_image_url_into_markdown_image() -> None:
    md = "hello\nhttps://example.com/x.png\nbye"
    out = preprocess_standalone_image_urls(md)
    assert "![](https://example.com/x.png)" in out


def test_markdown_image_wrapped_for_fullsize_link() -> None:
    html = markdown_html_fragment("![](https://example.com/wide.png)")
    assert "imwald-fullimg" in html
    assert "https://example.com/wide.png" in html
    assert "<img" in html