add fixture for an article

tests/conftest.py

@@ -0,0 +1,13 @@
+import pytest
+
+from newspaper import Article
+
+@pytest.fixture
+def create_article():
+    def _create_article():
+        url = 'https://www.20min.ch/story/corona-zahlen-auf-einen-blick-803083076953'
+        article = Article(url)
+        article.download()
+        article.parse()
+        return article
+    return _create_article