diff --git a/test/test_seller.cpp b/test/test_seller.cpp
index b389820..2c0468f 100644
--- a/test/test_seller.cpp
+++ b/test/test_seller.cpp
@@ -35,4 +35,5 @@ BOOST_AUTO_TEST_CASE(with_article) {
     article->setDescription("Test article");
     seller.addArticle(article);
     BOOST_TEST(seller.getArticles().at(0)->getDescription() == "Test article");
+    BOOST_TEST(seller.soldArticles() == 0);
 }
\ No newline at end of file