October 2014
Intermediate to advanced
280 pages
7h 20m
English
Content preview from Programming Elixir
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Step: Write Some Basic Tests
At this point, I get a little nervous if I don’t have some tests. Fortunately, Elixir comes with a wonderful (and simple) testing framework called ExUnit.
Have a look at the file test/issues_test.exs.
| project/0/issues/test/issues_test.exs | |
| | defmodule IssuesTest do |
| | use ExUnit.Case |
| | |
| | test "the truth" do |
| | assert(true) |
| | end |
| | end |
It acts as a template for all the test files you write. I just copy and paste the boilerplate into separate test files as I need them. So let’s write tests for our CLI module, putting those tests into the file test/cli_test.exs. We’ll test that the option parser successfully detects the -h and --help options, and that it returns the arguments otherwise. We’ll also check that ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.