okbot-render 0.5.0

//! Snapshot tests: one shared corpus rendered in every dialect.
#![allow(clippy::unwrap_used)] // test code: a panic is the failure report

use okbot_core::{ChannelCaps, LengthUnit, MarkdownDialect, Renderer};
use okbot_render::MarkdownRenderer;

fn render(dialect: MarkdownDialect, max: usize) -> String {
    let caps = ChannelCaps {
        max_message_len: max,
        length_unit: LengthUnit::Chars,
        dialect,
        ..ChannelCaps::basic()
    };
    let markdown = include_str!("corpus/mixed.md");
    MarkdownRenderer
        .render(markdown, &caps)
        .into_iter()
        .enumerate()
        .map(|(i, m)| format!("===== part {} =====\n{}", i + 1, m.text))
        .collect::<Vec<_>>()
        .join("\n")
}

#[test]
fn commonmark() {
    insta::assert_snapshot!(render(MarkdownDialect::CommonMark, 4000));
}

#[test]
fn zalo() {
    insta::assert_snapshot!(render(MarkdownDialect::ZaloMd, 2000));
}

#[test]
fn gchat() {
    insta::assert_snapshot!(render(MarkdownDialect::GChatText, 4096));
}

#[test]
fn slack() {
    insta::assert_snapshot!(render(MarkdownDialect::SlackMrkdwn, 3000));
}

#[test]
fn discord() {
    insta::assert_snapshot!(render(MarkdownDialect::DiscordMd, 2000));
}

#[test]
fn telegram() {
    insta::assert_snapshot!(render(MarkdownDialect::TelegramHtml, 4096));
}

#[test]
fn plain() {
    insta::assert_snapshot!(render(MarkdownDialect::Plain, 4000));
}

#[test]
fn zalo_split_small() {
    insta::assert_snapshot!(render(MarkdownDialect::ZaloMd, 120));
}

#[test]
fn only_web_links_become_links() {
    let caps = ChannelCaps {
        max_message_len: 4000,
        dialect: MarkdownDialect::SlackMrkdwn,
        ..ChannelCaps::basic()
    };
    let text = |md: &str| MarkdownRenderer.render(md, &caps)[0].text.clone();
    // Slack reads `<!channel|…>` as a mention of everyone.
    assert_eq!(text("[hi](!channel)"), "hi");
    assert_eq!(
        text("[a](https://x.example/?a=1&b=2)"),
        "<https://x.example/?a=1&amp;b=2|a>"
    );
}