test.mjs

import test from "ava";
import MarkdownIt from "markdown-it";
import markdownItExternalAnchor from "./index.js";

const md = MarkdownIt();

// Note: example.com is external, example.org is internal

md.use(markdownItExternalAnchor, {domain: 'example.org'});

test('external link has added attributes', (t) => {
    const example = "[text](https://example.com)";
    const result = md.renderInline(example);
    t.true(result.includes(`rel="noopener noreferrer"`))
    t.true(result.includes(`target="_blank"`))
});

test('internal, relative link has no added attributes', (t) => {
    const example = "[text](/example)";
    const result = md.renderInline(example);
    t.false(result.includes(`rel="noopener noreferrer"`))
    t.false(result.includes(`target="_blank"`))
});

test('internal, absolute link has no added attributes', (t) => {
    const example = "[text](https://example.org)}";
    const result = md.renderInline(example);
    t.false(result.includes(`rel="noopener noreferrer"`))
    t.false(result.includes(`target="_blank"`))
});