Testing clojures

clojure.test.js

const secret = (msg) => () => msg;

// partialApply(targetFunction: Function, ...fixedArgs: Any[]) =>
//   functionWithFewerParams(...remainingArgs: Any[])
const partialApply = (fn, ...fixedArgs) => {
  return function (...remainingArgs) {
    return fn.apply(this, fixedArgs.concat(remainingArgs));
  };
};

describe('testing clojure', () => {
  test('secret', () => {
    const msg = 'secret() should return a function that returns the passed secret.';
  
    const theSecret = 'Closures are easy.';
    const mySecret = secret(theSecret);

    console.log(mySecret);
  
    const actual = mySecret();
    const expected = theSecret;
  
    expect(actual).toBe(expected);
  });

  test('adds 1 + 1 = 2', () => {
    const add = (a, b) => a + b;

    const result = add(1, 1);

    expect(result).toBe(2);
  });

  test('partialApply() should partially apply functions', () => {
    const add = (a, b) => a + b;

    const add10 = partialApply(add, 10);


    const actual = add10(5);
    const expected = 15;

    expect(actual).toBe(expected);
  })
})