import assert from 'node:assert/strict';
import { spawnSync } from 'node:child_process';
import test from 'node:test';

test('image processing falls back to WebAssembly without native CPU support', () => {
  // Isolate the native-binding simulation from the rest of the test process.
  const result = spawnSync(process.execPath, ['-e', `
    const Module = require('node:module');
    const original = Module._load;
    Module._load = function (id, ...args) {
      if (id.endsWith('.node') && !id.includes('wasm32')) {
        const error = new Error('Simulated unavailable native binding');
        error.code = 'MODULE_NOT_FOUND';
        throw error;
      }
      return original.call(this, id, ...args);
    };
    const sharp = require('sharp');
    (async () => {
      const image = await sharp({ create: { width: 8, height: 8, channels: 3, background: '#336699' } }).webp().toBuffer();
      const metadata = await sharp(image).metadata();
      if (metadata.format !== 'webp' || metadata.width !== 8 || metadata.height !== 8) throw new Error('Image round trip failed');
    })().catch(error => { console.error(error); process.exitCode = 1; });
  `], { encoding: 'utf8', timeout: 30000 });
  assert.equal(result.status, 0, result.stderr || result.error?.message);
});