const expect = require('expect');
const partialRight = require('./partialRight.js');


  test('partialRight is a Function', () => {
  expect(partialRight).toBeInstanceOf(Function);
});
  function greet(greeting, name) {
    return greeting + ' ' + name + '!';
  }
  const greetJohn = partialRight(greet, 'John');
  test('Appends arguments', () => {
  expect(greetJohn('Hello'), 'Hello John!').toBe()
});