silverbullet/plugs/lib/tree.test.ts

import { expect, test } from "@jest/globals";
import { parse } from "../../common/tree";
import {
  addParentPointers,
  collectNodesMatching,
  findParentMatching,
  nodeAtPos,
  removeParentPointers,
  renderMarkdown,
  replaceNodesMatching
} from "./tree";

const mdTest1 = `
# Heading
## Sub _heading_ cool

Hello, this is some **bold** text and *italic*. And [a link](http://zef.me).

%% My comment here
%% And second line

And an @mention

http://zef.plus

- This is a list [[PageLink]]
- With another item
- TODOs:
  - [ ] A task that's not yet done
  - [x] Hello
- And a _third_ one [[Wiki Page]] yo
`;

const mdTest2 = `
Hello

* Item 1
*

Sup`;

const mdTest3 = `
\`\`\`yaml
name: something
\`\`\`
`;

test("Run a Node sandbox", async () => {
  let mdTree = parse(mdTest1);
  addParentPointers(mdTree);
  // console.log(JSON.stringify(mdTree, null, 2));
  let wikiLink = nodeAtPos(mdTree, mdTest1.indexOf("Wiki Page"))!;
  expect(wikiLink.type).toBe("WikiLink");
  expect(
    findParentMatching(wikiLink, (n) => n.type === "BulletList")
  ).toBeDefined();

  let allTodos = collectNodesMatching(mdTree, (n) => n.type === "Task");
  expect(allTodos.length).toBe(2);

  // Render back into markdown should be equivalent
  expect(renderMarkdown(mdTree)).toBe(mdTest1);

  removeParentPointers(mdTree);
  replaceNodesMatching(mdTree, (n) => {
    if (n.type === "Task") {
      return {
        type: "Tosk",
      };
    }
  });
  console.log(JSON.stringify(mdTree, null, 2));
  let mdTree3 = parse(mdTest3);
  console.log(JSON.stringify(mdTree3, null, 2));
});