test_coffeescript.rb

# frozen_string_literal: true

require "helper"

class TestCoffeeScript < JekyllUnitTest
  context "converting CoffeeScript" do
    setup do
      External.require_with_graceful_fail("jekyll-coffeescript")
      @site = fixture_site
      @site.process
      @test_coffeescript_file = dest_dir("js/coffeescript.js")
      @js_output = <<~JS
        (function() {
          $(function() {
            var cube, cubes, list, num, square;
            list = [1, 2, 3, 4, 5];
            square = function(x) {
              return x * x;
            };
            cube = function(x) {
              return square(x) * x;
            };
            cubes = (function() {
              var i, len, results;
              results = [];
              for (i = 0, len = list.length; i < len; i++) {
                num = list[i];
                results.push(math.cube(num));
              }
              return results;
            })();
            if (typeof elvis !== "undefined" && elvis !== null) {
              return alert("I knew it!");
            }
          });

        }).call(this);
      JS
    end

    should "write a JS file in place" do
      assert_exist @test_coffeescript_file
    end

    should "produce JS" do
      assert_equal @js_output, File.read(@test_coffeescript_file)
    end
  end
end