var obj = {
  method: function(...args) {
    return {
      self: this,
      args: args
    };
  }
};

var result = {
  obj: obj,
  result: obj.method(0, ...[1, 2], 3)
};

// ----------------------------------------------------------------------------

assert.equal(result.obj, result.result.self);
assertArrayEquals([0, 1, 2, 3], result.result.args);