Added tests

Tests/Fixtures/article.html

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+
+<article>
+  <div>
+    <h1>Test Article Header</h1>
+    <time pubdate="2025-07-04 07:55:00Z" datetime="2025-07-04 07:55:00Z">fre, jul 04, 2025 09:55 CET</time>
+    <p><strong>Lead:</strong> This is a test article paragraph.</p>
+    <p><em>Italic sentence.</em></p>
+    <ul>
+      <li><strong>Key:</strong> Value</li>
+    </ul>
+  </div>
+</article>

Tests/Fixtures/rss-press.xml

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+<?xml version="1.0" encoding="UTF-8" ?>
+<rss version="2.0">
+  <channel>
+    <title>Test Press Releases</title>
+    <item>
+      <guid>test-guid</guid>
+      <title>Test Press Title</title>
+      <description>This is a test press release description.</description>
+      <link>https://news.cision.com/se/example/r/test,c123456</link>
+      <pubDate>Fri, 04 Jul 2025 07:55:00 GMT</pubDate>
+    </item>
+  </channel>
+</rss>