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to Hello World in the Emacs Lisp Track

Published at Jul 13 2018 · 0 comments
Test suite

The classical introductory exercise. Just say "Hello, World!".

"Hello, World!" is the traditional first program for beginning programming in a new language or environment.

The objectives are simple:

  • Write a function that returns the string "Hello, World!".
  • Run the test suite and make sure that it succeeds.
  • Submit your solution and check it at the website.

If everything goes well, you will be ready to fetch your first real exercise.


This is an exercise to introduce users to using Exercism http://en.wikipedia.org/wiki/%22Hello,_world!%22_program

Submitting Incomplete Solutions

It's possible to submit an incomplete solution so you can see how others have completed the exercise.


;;; hello-world-test.el --- Tests for Hello World (exercism)

;;; Commentary:
;; Common test data version: 1.1.0 be3ae66

;;; Code:

(load-file "hello-world.el")

(ert-deftest hello-world-test ()
  (should (equal (hello) "Hello, World!")))

(provide 'hello-world-test)

;;; hello-world-test.el ends here
;;; hello-world.el --- Hello World Exercise (exercism)

;;; Commentary:

;;; Code:

(defun hello (&optional name)
  "Greet NAME with a little hello."
  (message "Hello, %s!" (or name "World")))

(provide 'hello-world)
;;; hello-world.el ends here

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