const expect = require('expect');
const {copyToClipboard} = require('./_30s.js');

test('copyToClipboard is a Function', () => {
  expect(copyToClipboard).toBeInstanceOf(Function);
});
test('copyToClipboard does not throw errors', () => {
  document.getSelection = function () {
    return {
      rangeCount: 0,
      removeAllRanges() { return; },
      addRange(x) { return x; }
    };
  }
  document.execCommand = function (x) { return x; }

  expect(copyToClipboard('hi')).toBe(undefined);
});
test('copyToClipboard does not throw errors', () => {
  document.getSelection = function () {
    return {
      rangeCount: 1,
      getRangeAt(x) { return x+1; },
      removeAllRanges() { return; },
      addRange(x) { return x; }
    };
  }
  document.execCommand = function (x) { return x; }

  expect(copyToClipboard('hi')).toBe(undefined);
});