vvlad1973-telegram-framework/tests/replace_template.test.js

Current version: *7.9.5*

import { describe, it, expect } from 'vitest';
import { replaceTemplate } from '../src/helpers/utils.js';

describe('replaceTemplate', () => {
  const strings = {
    TITLE: 'Заголовок',
    FOOTER: 'Низ страницы',
  };

  const data = {
    user: {
      name: 'Alice',
      peers: {
        peer_0: 777777,
        peer_1: 888888,
      },
      links: [
        { id: 'l1', href: '/link1' },
        { id: 'l2', href: '/link2' },
      ],
      meta: {
        peer_0: { status: 'online' },
      },
      getLink(id) {
        return this.links.find((l) => l.id === id);
      },
      async getProfile() {
        return { nickname: 'Ali', level: 3 };
      },
    },
    numbers: [10, 20, 30],
  };

  it('replaces simple string key from "strings"', async () => {
    const result = await replaceTemplate(
      'Welcome to {{TITLE}}!',
      strings,
      data
    );
    expect(result).toBe('Welcome to Заголовок!');
  });

  it('replaces nested path from data object', async () => {
    const result = await replaceTemplate('User: {{user.name}}', strings, data);
    expect(result).toBe('User: Alice');
  });

  it('replaces nested path from data object 2', async () => {
    const result = await replaceTemplate('User: {{user.peers["peer_0"]}}', strings, data);
    expect(result).toBe('User: 777777');
  });

  it('resolves array access like user.links[1].href', async () => {
    const result = await replaceTemplate(
      'Second link: {{user.links[1].href}}',
      strings,
      data
    );
    expect(result).toBe('Second link: /link2');
  });

  it('resolves object key access with brackets', async () => {
    const result = await replaceTemplate(
      'Status: {{user.meta["peer_0"].status}}',
      strings,
      data
    );
    expect(result).toBe('Status: online');
  });

  it('resolves method call with argument', async () => {
    const result = await replaceTemplate(
      'Link: {{user.getLink("l2").href}}',
      strings,
      data
    );
    expect(result).toBe('Link: /link2');
  });

  it('resolves method call with argument 2', async () => {
    const result = await replaceTemplate(
      "Link: {{user.getLink('l2').href}}",
      strings,
      data
    );
    expect(result).toBe('Link: /link2');
  });

  it('resolves async method call', async () => {
    const result = await replaceTemplate(
      'Nickname: {{user.getProfile().nickname}}',
      strings,
      data
    );
    expect(result).toBe('Nickname: Ali');
  });

  it('leaves unknown placeholder as-is', async () => {
    const result = await replaceTemplate('Hello {{UNKNOWN}}', strings, data);
    expect(result).toBe('Hello {{UNKNOWN}}');
  });

  it('supports numeric array access', async () => {
    const result = await replaceTemplate(
      'First number: {{numbers[0]}}',
      strings,
      data
    );
    expect(result).toBe('First number: 10');
  });
});