diff --git a/models/book_test.go b/models/book_test.go
index 448729b..ce696b7 100644
--- a/models/book_test.go
+++ b/models/book_test.go
@@ -105,6 +105,19 @@ func TestAddOrUpdateBook(t *testing.T) {
 	// (ID, Created, Updated), this would fail if we'd just directly compared authorsbybook and testbook.Authors
 	assert.Equal(t, len(authorsbybook), len(testbook.Authors))
 
+	// Test Quantity
+	qty1, err := book1.getQuantity()
+	assert.NoError(t, err)
+	assert.Equal(t, book1.Quantity, qty1)
+
+	// Update the quantity and check again
+	err = book1.setQuantity(int64(99))
+	assert.NoError(t, err)
+
+	qty2, err := book1.getQuantity()
+	assert.NoError(t, err)
+	assert.Equal(t, int64(99), qty2)
+
 	// Delete the book
 	err = DeleteBookByID(book1.ID)
 	assert.NoError(t, err)