SubMiner/src/core/services/mpv-control.test.ts

import test from 'node:test';
import assert from 'node:assert/strict';
import { showMpvOsdRuntime } from './mpv';

test('showMpvOsdRuntime sends show-text when connected', () => {
  const commands: (string | number)[][] = [];
  const shown = showMpvOsdRuntime(
    {
      connected: true,
      send: ({ command }) => {
        commands.push(command);
      },
    },
    'hello',
  );
  assert.equal(shown, true);
  assert.deepEqual(commands, [['show-text', 'hello', '3000']]);
});

test('showMpvOsdRuntime enables property expansion for placeholder-based messages', () => {
  const commands: (string | number)[][] = [];
  const shown = showMpvOsdRuntime(
    {
      connected: true,
      send: ({ command }) => {
        commands.push(command);
      },
    },
    'Subtitle delay: ${sub-delay}',
  );
  assert.equal(shown, true);
  assert.deepEqual(commands, [
    ['expand-properties', 'show-text', 'Subtitle delay: ${sub-delay}', '3000'],
  ]);
});

test('showMpvOsdRuntime logs fallback when disconnected', () => {
  const logs: string[] = [];
  const shown = showMpvOsdRuntime(
    {
      connected: false,
      send: () => {},
    },
    'hello',
    (line) => {
      logs.push(line);
    },
  );
  assert.equal(shown, false);
  assert.deepEqual(logs, ['OSD (MPV not connected): hello']);
});