Test news generator

Rakefile

@@ -14,7 +14,7 @@ CONFIG = "_config.yml"
 task default: [:build]
 
 desc "Run tests (test-linter, lint, build)"
-task test: %i[test-linter lint build]
+task test: %i[test-news-plugin test-linter lint build]
 
 desc "Build the Jekyll site"
 task :build do
@@ -136,3 +136,11 @@ Rake::TestTask.new(:"test-linter") do |t|
   t.test_files = FileList['test/test_linter_*.rb']
   t.verbose = true
 end
+
+require "rake/testtask"
+Rake::TestTask.new(:"test-news-plugin") do |t|
+  t.description = "Run tests for the news archive plugin"
+  t.libs = ["test"]
+  t.test_files = FileList['test/test_plugin_news.rb']
+  t.verbose = true
+end

test/helper.rb

@@ -37,3 +37,13 @@ def linter_output
 
   stdout
 end
+
+def file_must_exist(filename)
+    assert File.exist?(filename),
+               "Expected file `#{filename}' to exist."
+end
+
+def file_wont_exist(filename)
+    assert !File.exist?(filename),
+               "Expected file `#{filename}' to not exist."
+end

test/test_plugin_news.rb

@@ -0,0 +1,124 @@
+# frozen_string_literal: true
+
+require "helper"
+
+require "jekyll"
+require_relative "../_plugins/news"
+
+
+describe NewsArchivePlugin do
+
+  before do
+    chdir_tempdir
+
+    content = <<~CONFIG
+    CONFIG
+
+    create_file("source/_config.yml", content)
+
+    content = <<~LOCALES
+      month_names:
+        - January
+        - February
+
+      news:
+        recent_news: Recent News
+        yearly_archive_title: "%Y Archives"
+        monthly_archive_title: "%B %Y Archives"
+        yearly_archive_link: "%Y Archives"
+        monthly_archive_link: "%B %Y"
+    LOCALES
+
+    create_file("source/_data/locales/en.yml", content)
+
+    content = <<~LAYOUT
+      ---
+      layout: default
+      ---
+      NEWS LAYOUT
+
+      {% for post in page.posts %}
+        {{ post.title }}
+      {% endfor %}
+    LAYOUT
+
+    create_file("source/_layouts/news.html", content)
+
+    content = <<~LAYOUT
+      ---
+      layout: default
+      ---
+      NEWS ARCHIVE YEAR LAYOUT
+
+      {% for post in page.posts %}
+        {{ post.title }}
+      {% endfor %}
+    LAYOUT
+
+    create_file("source/_layouts/news_archive_year.html", content)
+
+    content = <<~LAYOUT
+      ---
+      layout: default
+      ---
+      NEWS ARCHIVE MONTH LAYOUT
+
+      {% for post in page.posts %}
+        {{ post.title }}
+      {% endfor %}
+    LAYOUT
+
+    create_file("source/_layouts/news_archive_month.html", content)
+
+    content = <<~POST
+      ---
+      title: "Post Jan 2020"
+      author: "stomar"
+      date: 2020-01-01 12:00:00 +0000
+      lang: en
+      ---
+
+      Content
+    POST
+
+    create_file("source/en/news/_posts/2020-01-01-post.md", content)
+
+    config = Jekyll.configuration(
+      source: "source",
+      destination: "_site",
+      quiet: true
+    )
+    site = Jekyll::Site.new(config)
+
+    file_wont_exist("_site")
+    site.process
+  end
+
+  after do
+    teardown_tempdir
+  end
+
+  it "should create news page" do
+    file_must_exist("_site/en/news/index.html")
+  end
+
+  it "should use the correct layout for news page" do
+    _(File.read("_site/en/news/index.html")).must_match "NEWS LAYOUT"
+  end
+
+  it "should create news/2020 page" do
+    file_must_exist("_site/en/news/2020/index.html")
+  end
+
+  it "should use the correct layout for news/2020 page" do
+    _(File.read("_site/en/news/2020/index.html")).must_match "YEAR LAYOUT"
+  end
+
+  it "should create news/2020/01 page" do
+    file_must_exist("_site/en/news/2020/index.html")
+  end
+
+  it "should use the correct layout for news/2020/01 page" do
+    _(File.read("_site/en/news/2020/01/index.html")).must_match "MONTH LAYOUT"
+  end
+end