add basic integration tests

.rspec

@@ -1,2 +1,3 @@
 --color
 --format progress
+--require spec_helper

spec/fixtures/Gemfile

@@ -0,0 +1,5 @@
+# frozen_string_literal: true
+
+source "https://rubygems.org"
+
+gem "github-pages", :group => :jekyll_plugins, :path => "../../"

spec/fixtures/_config.yml

@@ -2,5 +2,13 @@ some_key: some_value
 safe: false
 gems:
   - jekyll-sitemap
+  - jekyll-redirect-from
+  - jekyll-feed
+  - jekyll-paginate
+  - jekyll-seo-tag
+  - jekyll-avatar
+  - jemoji
+  - jekyll-mentions
   - jekyll_test_plugin_malicious
 quiet: false
+paginate: 5

spec/fixtures/_layouts/page.md

@@ -0,0 +1,4 @@
+---
+---
+
+{{ content }}

spec/fixtures/_posts/2017-01-10-test.md

@@ -0,0 +1,4 @@
+---
+---
+
+# test 

spec/fixtures/index.html

@@ -0,0 +1,6 @@
+---
+---
+
+Page: {{ paginator.page }}
+
+Total Pages: {{ paginator.total_pages }}

spec/fixtures/jekyll-avatar.html

@@ -0,0 +1,4 @@
+---
+---
+
+{% avatar hubot %}

spec/fixtures/jekyll-coffeescript.coffee

@@ -0,0 +1,4 @@
+---
+---
+
+console.log "hello world"

spec/fixtures/jekyll-default-layout.md

@@ -0,0 +1,4 @@
+---
+---
+
+This page's layout is "{{ page.layout }}"

spec/fixtures/jekyll-gist.md

@@ -0,0 +1,4 @@
+---
+---
+
+{% gist parkr/c08ee0f2726fd0e3909d %}

spec/fixtures/jekyll-github-metadata.html

@@ -0,0 +1,4 @@
+---
+---
+
+Branch: {{ site.github.source.branch }}

spec/fixtures/jekyll-mentions.md

@@ -0,0 +1,4 @@
+---
+---
+
+@jekyll

spec/fixtures/jekyll-optional-front-matter.md

@@ -0,0 +1 @@
+# File without front matter

spec/fixtures/jekyll-readme-index/README.md

@@ -0,0 +1 @@
+# README

spec/fixtures/jekyll-relative-links.md

@@ -0,0 +1,5 @@
+---
+---
+
+
+[Jekyll](jekyll.md)

spec/fixtures/jekyll-sass-converter.scss

@@ -0,0 +1,8 @@
+---
+---
+
+$color: #333;
+
+body {
+  color: $color;
+}

spec/fixtures/jekyll-seo-tag.html

@@ -0,0 +1,5 @@
+---
+title: Jekyll SEO Tag
+---
+
+{% seo %}

spec/fixtures/jekyll-titles-from-headings.md

@@ -0,0 +1,6 @@
+---
+---
+
+# First heading
+
+The page title is "{{ page.title }}"

spec/fixtures/jekyll.md

@@ -0,0 +1,4 @@
+---
+---
+
+# Jekyll

spec/fixtures/jemoji.md

@@ -0,0 +1,4 @@
+---
+---
+
+:tada:

spec/fixtures/kramdown.md

@@ -0,0 +1,4 @@
+---
+---
+
+# Test

spec/fixtures/liquid.html

@@ -0,0 +1,5 @@
+---
+foo: bar
+---
+
+Value of foo: {{ page.foo }}

spec/fixtures/redirect_from.html

@@ -0,0 +1,3 @@
+---
+redirect_from: /redirect/
+---

spec/fixtures/redirect_to.html

@@ -0,0 +1,3 @@
+---
+redirect_to: /someplace-else/
+---

spec/fixtures/rouge.md

@@ -0,0 +1,6 @@
+---
+---
+
+```ruby
+puts "hello world"
+```

spec/github-pages/integration_spec.rb

@@ -0,0 +1,215 @@
+# frozen_string_literal: true
+
+RSpec.describe "Pages Gem Integration spec" do
+  def destination_file(file)
+    File.join tmp_dir, file
+  end
+
+  def source
+    @source ||= fixture_dir
+  end
+
+  def destination
+    @destination ||= tmp_dir
+  end
+
+  def env
+    { "BUNDLE_GEMFILE" => "#{source}/Gemfile" }
+  end
+
+  def run_or_raise(env, *cmd)
+    stdout_and_stderr_str, status = Open3.capture2e env, *cmd
+    raise StandardError, stdout_and_stderr_str if status.exitstatus != 0
+  end
+
+  let(:file) { "#{self.class.description}.html" }
+  let(:path) { destination_file file }
+  let(:contents) { File.read path }
+
+  before(:all) { FileUtils.rm_rf(destination) }
+  before(:all) do
+    Dir.chdir(source) do
+      run_or_raise env, %w(bundle install)
+      cmd = %w(bundle exec jekyll build --verbose)
+      cmd = cmd.concat ["--source", source, "--destination", destination]
+      run_or_raise env, *cmd
+    end
+  end
+  after(:all) { FileUtils.rm_rf(destination) }
+
+  it "tests all dependencies" do
+    contents = File.read(__FILE__)
+    contexts = contents.scan(/context \"(.*?)\"/)
+    missing = GitHubPages::Dependencies::VERSIONS.keys - contexts.flatten
+    missing -= %w(listen activesupport github-pages-health-check)
+    msg = "The following dependencies are missing integration tests: #{missing.join(", ")}"
+    expect(missing).to be_empty, msg
+  end
+
+  context "jekyll" do
+    it "builds" do
+      expect(path).to be_an_existing_file
+    end
+  end
+
+  context "jekyll-sass-converter" do
+    let(:file) { "jekyll-sass-converter.css" }
+
+    it "Renders SCSS" do
+      expect(path).to be_an_existing_file
+      expect(contents).to match("body { color: #333; }")
+    end
+  end
+
+  context "kramdown" do
+    it "converts markdown to HTML" do
+      expect(contents).to match('<h1 id="test">Test</h1>')
+    end
+  end
+
+  context "liquid" do
+    it "renders liquid templates" do
+      expect(contents).to match("Value of foo: bar")
+    end
+  end
+
+  context "rouge" do
+    it "syntax highlights" do
+      expected = '<div class="language-ruby highlighter-rouge">'.dup
+      expected << '<pre class="highlight"><code><span class="nb">'
+      expected << 'puts</span> <span class="s2">"hello world"'
+      expect(contents).to match(expected)
+    end
+  end
+
+  context "jekyll-redirect-from" do
+    context "redirect_from" do
+      let(:file) { "redirect/index.html" }
+
+      it "redirects from" do
+        expect(path).to be_an_existing_file
+        expected = '<meta http-equiv="refresh" content="0; url=/redirect_from.html">'
+        expect(contents).to match(expected)
+      end
+    end
+
+    context "redirect_to" do
+      it "redirects to" do
+        expect(path).to be_an_existing_file
+        expected = '<meta http-equiv="refresh" content="0; url=/someplace-else/">'
+        expect(contents).to match(expected)
+      end
+    end
+  end
+
+  context "jekyll-sitemap" do
+    let(:file) { "sitemap.xml" }
+
+    it "builds the sitemap" do
+      expect(path).to be_an_existing_file
+      expect(contents).to match("<loc>/jekyll.html</loc>")
+    end
+  end
+
+  context "jekyll-feed" do
+    let(:file) { "feed.xml" }
+
+    it "builds the feed" do
+      expect(path).to be_an_existing_file
+      expected = '<title type="html">Test</title><link href="/2017/01/10/test.html"'
+      expect(contents).to match(expected)
+    end
+  end
+
+  context "jekyll-gist" do
+    it "creates the script tag" do
+      expected = '<script src="https://gist.github.com/parkr/c08ee0f2726fd0e3909d.js">'
+      expect(contents).to match(expected)
+    end
+  end
+
+  context "jekyll-paginate" do
+    let(:file) { "index.html" }
+
+    it "paginates" do
+      expect(contents).to match("Page: 1")
+      expect(contents).to match("Total Pages: 1")
+    end
+  end
+
+  context "jekyll-coffeescript" do
+    let(:file) { "jekyll-coffeescript.js" }
+
+    it "converts to JS" do
+      expect(path).to be_an_existing_file
+      expected = Regexp.escape 'console.log("hello world");'
+      expect(contents).to match(expected)
+    end
+  end
+
+  context "jekyll-seo-tag" do
+    it "outputs the tag" do
+      expect(contents).to match("<title>Jekyll SEO Tag | pages-gem</title>")
+    end
+  end
+
+  context "jekyll-github-metadata" do
+    it "builds the site.github namespace" do
+      expect(contents).to match("Branch: gh-pages")
+    end
+  end
+
+  context "jekyll-avatar" do
+    it "renders the avatar" do
+      expected = %r{https://avatars\d\.githubusercontent\.com/hubot\?v=3&s=40}
+      expect(contents).to match(expected)
+    end
+  end
+
+  context "jemoji" do
+    it "renders emoji" do
+      expect(contents).to match('<img class="emoji" title=":tada:" alt=":tada:"')
+    end
+  end
+
+  context "jekyll-mentions" do
+    it "renderse mentions" do
+      expect(contents).to match('<a href="https://github.com/jekyll" class="user-mention">@jekyll</a>')
+    end
+  end
+
+  context "jekyll-relative-links" do
+    it "converts relative links" do
+      expect(contents).to match('<a href="/jekyll.html">Jekyll</a>')
+    end
+  end
+
+  context "jekyll-optional-front-matter" do
+    it "renders pages without front matter" do
+      expect(path).to be_an_existing_file
+      expected = '<h1 id="file-without-front-matter">File without front matter</h1>'
+      expect(contents).to match(expected)
+    end
+  end
+
+  context "jekyll-titles-from-headings" do
+    it "pulls titles from headings" do
+      expect(contents).to match("The page title is “First heading”")
+    end
+  end
+
+  context "jekyll-default-layout" do
+    it "sets the default layout" do
+      expect(contents).to match("This page’s layout is “page”")
+    end
+  end
+
+  context "jekyll-readme-index" do
+    let(:file) { "jekyll-readme-index/index.html" }
+
+    it "uses the README as the index" do
+      expect(path).to be_an_existing_file
+      expect(contents).to match("README")
+    end
+  end
+end

spec/spec_helper.rb

@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 require File.expand_path("../../lib/github-pages.rb", __FILE__)
+require "open3"
 
 RSpec.configure do |config|
   config.run_all_when_everything_filtered = true
@@ -14,9 +15,13 @@ RSpec.configure do |config|
 end
 
 def fixture_dir
-  File.expand_path "./fixtures", File.dirname(__FILE__)
+  File.expand_path "./fixtures", __dir__
 end
 
 def tmp_dir
-  File.expand_path "./test-site", File.dirname(__FILE__)
+  File.expand_path "../tmp", __dir__
+end
+
+RSpec::Matchers.define :be_an_existing_file do
+  match { |path| File.exist?(path) }
 end