Add Vader tests for RSS feed generation

test/diary_rss_feed.vader

@@ -0,0 +1,110 @@
+Include: vader_includes/vader_setup.vader
+
+Execute (Copy Wiki's Resources):
+  Log "Start: Copy Resources"
+  call CopyResources()
+
+Given (Void):
+
+Execute (Generate HTML and RSS feed):
+  edit $HOME/testwiki/index.wiki
+  Vimwiki2HTML
+  VimwikiRss
+
+Given (Void):
+
+Do (Get HTML file):
+  :read $HOME/html/default/index.html\<CR>
+# Go to line with RSS link
+  gg/RSS\<CR>
+# Delete everything above
+  kdgg
+# Delete everything below
+  jdG
+# Save (Not necessary)
+  :write
+
+Expect (RSS link in HTML):
+  <link rel="alternate" type="application/rss+xml" title="RSS" href="rss.xml">
+
+Do (Get RSS feed):
+  :read $HOME/html/default/rss.xml\<CR>
+# Remove first line
+  ggdd
+# Replace pubDate with dummy as it's based on file modification time
+  :%s@<pubDate>.*</pubDate>@<pubDate>...</pubDate>@g\<CR>
+# Save (Not necessary)
+  :write
+
+Expect (RSS):
+  <?xml version="1.0" encoding="UTF-8" ?>
+  <rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
+  <channel>
+   <title>Diary</title>
+   <link>https://example.com/diary/diary.html</link>
+   <description>Diary</description>
+   <pubDate>...</pubDate>
+   <atom:link href="https://example.com/rss.xml" rel="self" type="application/rss+xml" />
+   <item>
+    <title>day 4</title>
+    <link>https://example.com/diary/2020-07-25.html</link>
+    <guid isPermaLink="false">2020-07-25</guid>
+    <description><![CDATA[
+  <div id="day 4"><h1 id="day 4" class="header"><a href="#day 4">day 4</a></h1></div>
+  
+  <div id="day 4-subsection 1"><h2 id="subsection 1" class="header"><a href="#day 4-subsection 1">subsection 1</a></h2></div>
+  
+  <p>
+  here is some code:
+  </p>
+  
+  <pre>
+  #!/bin/sh
+  echo "hello world"
+  </pre>
+  
+  <div id="day 4-subsection 2"><h2 id="subsection 2" class="header"><a href="#day 4-subsection 2">subsection 2</a></h2></div>
+  
+  <p>
+  an important list:
+  </p>
+  
+  <ul>
+  <li>
+  point 1
+  
+  <li>
+  point 2
+  
+  </ul>
+  ]]></description>
+    <pubDate>...</pubDate>
+   </item>
+   <item>
+    <title>Day 2</title>
+    <link>https://example.com/diary/2020-07-23.html</link>
+    <guid isPermaLink="false">2020-07-23</guid>
+    <description><![CDATA[
+  <div id="Day 2"><h1 id="Day 2" class="header"><a href="#Day 2">Day 2</a></h1></div>
+  
+  <p>
+  another diary entry
+  </p>
+  ]]></description>
+    <pubDate>...</pubDate>
+   </item>
+   <item>
+    <title>2020-07-22</title>
+    <link>https://example.com/diary/2020-07-22.html</link>
+    <guid isPermaLink="false">2020-07-22</guid>
+    <description><![CDATA[
+  <p>
+  example diary entry for day 1.
+  </p>
+  ]]></description>
+    <pubDate>...</pubDate>
+   </item>
+  </channel>
+  </rss>
+
+Include: vader_includes/vader_teardown.vader

test/resources/testwiki/diary/2020-07-22.wiki

@@ -0,0 +1 @@
+example diary entry for day 1.

test/resources/testwiki/diary/2020-07-23.wiki

@@ -0,0 +1,3 @@
+= Day 2 =
+
+another diary entry

test/resources/testwiki/diary/2020-07-24.wiki

@@ -0,0 +1,5 @@
+%nohtml
+
+== day 3 ==
+
+and yet *another* diary entry.

test/resources/testwiki/diary/2020-07-25.wiki

@@ -0,0 +1,17 @@
+= day 4 =
+
+== subsection 1 ==
+
+here is some code:
+
+{{{
+#!/bin/sh
+echo "hello world"
+}}}
+
+== subsection 2 ==
+
+an important list:
+
+	* point 1
+	* point 2

test/vimrc

@@ -19,6 +19,7 @@ let vimwiki_default.path_html = $HOME . '/html/default'
 let vimwiki_default.syntax = 'default'
 let vimwiki_default.ext = '.wiki'
 let vimwiki_default.name = 'DefaultSyntax'
+let vimwiki_default.base_url = 'https://example.com/'
 
 " markdown syntax - https://github.github.com/gfm/
 let vimwiki_markdown = {}