def test_extract_article_based_on_tags():
from newspaper import Article
article = Article("http://www.vg.no", "mockpage", "http://www.vg.no")
keys = ["balle", "klorin", "Kjeks"]
article.set_keywords(keys)
article2 = Article("http://www.vg.no", "mockpage", "http://www.vg.no")
keys2 = ["sommer", "sjø", "pollen"]
article2.set_keywords(keys2)
result = extract_articles([article, article2], ["fjøs", "Kjeks"])
assert len(result) > 0
r_article = result[0]
assert r_article.keywords == keys
assert r_article.url == "http://www.vg.no"
assert r_article.title == "mockpage"
assert r_article.source_url == "http://www.vg.no"
result = extract_articles([article, article2], ["fjøs", "Kjeks", "SJØ"])
assert len(result) == 2
