Skip to content

Instantly share code, notes, and snippets.

@mjc
Last active Jul 13, 2019
Embed
What would you like to do?
test for fizzbuzz
defmodule FizzBuzzTest do
use ExUnit.Case
# to run tests: mix test
# to get an irb equivalent with your code loaded in it: iex -S mix
# to get a pry in your code: `require IEx;IEx.pry()`
# Phase 1: make the test pass.
# Phase 2: implement the fizz/buzz check as a pattern match
# Phase 3: move the pattern match into multiple function clauses.
# Phase 4: add typespecs. https://elixirschool.com/en/lessons/advanced/typespec/
# to test your typespecs:
# delete the deps method in your mix.exs file (this is the equivalent of Gemfile) and replace it with this:
# def deps, do: [{:dialyxir, "~> 1.0.0-rc.6", only: [:dev], runtime: false}]
# to test your typespecs: mix dialyzer
# this will take several minutes the first time.
# Phase 5: switch to recursion
test "passes FizzBuzz" do
assert FizzBuzz.fizzbuzz(1, 100) == [
1,
2,
"Fizz",
4,
"Buzz",
"Fizz",
7,
8,
"Fizz",
"Buzz",
11,
"Fizz",
13,
14,
"FizzBuzz",
16,
17,
"Fizz",
19,
"Buzz",
"Fizz",
22,
23,
"Fizz",
"Buzz",
26,
"Fizz",
28,
29,
"FizzBuzz",
31,
32,
"Fizz",
34,
"Buzz",
"Fizz",
37,
38,
"Fizz",
"Buzz",
41,
"Fizz",
43,
44,
"FizzBuzz",
46,
47,
"Fizz",
49,
"Buzz",
"Fizz",
52,
53,
"Fizz",
"Buzz",
56,
"Fizz",
58,
59,
"FizzBuzz",
61,
62,
"Fizz",
64,
"Buzz",
"Fizz",
67,
68,
"Fizz",
"Buzz",
71,
"Fizz",
73,
74,
"FizzBuzz",
76,
77,
"Fizz",
79,
"Buzz",
"Fizz",
82,
83,
"Fizz",
"Buzz",
86,
"Fizz",
88,
89,
"FizzBuzz",
91,
92,
"Fizz",
94,
"Buzz",
"Fizz",
97,
98,
"Fizz",
"Buzz"
]
end
end
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment