CommonJS Tree Shaking Test Case

cjs-treeshake.js

it('will treekshake a static named import', async () => {
  const input = register('./a')`
    const { a } = require('./b');

    console.log(a);
  `;

  register('./b')`
    function b() {}
    exports.a = 'hello world';
    exports.b = b;
  `;

  const { source } = await webapp({
    ...defaults,
    input,
    inputType,
  });

  equal(source.code, format`
    var module = {
      exports: {}
    };
    var exports = module.exports;
    exports.a = 'hello world';
    const a = exports.a;
    var a_module_1 = {
      exports: {}
    };
    var a_exports_1 = a_module_1.exports;
    console.log(a);
    this.webapp = a_module_1.exports;
  `);
});