diff --git a/web_programming/current_stock_price.py b/web_programming/current_stock_price.py
index 9567c05b0..d0a65e9aa 100644
--- a/web_programming/current_stock_price.py
+++ b/web_programming/current_stock_price.py
@@ -1,14 +1,30 @@
 import requests
 from bs4 import BeautifulSoup
 
+"""
+Get the HTML code of finance yahoo and select the current qsp-price
+Current AAPL stock price is   228.43
+Current AMZN stock price is   201.85
+Current IBM  stock price is   210.30
+Current GOOG stock price is   177.86
+Current MSFT stock price is   414.82
+Current ORCL stock price is   188.87
+"""
+
 
 def stock_price(symbol: str = "AAPL") -> str:
+    """
+    >>> stock_price("EEEE")
+    '-'
+    >>> isinstance(float(stock_price("GOOG")),float)
+    True
+    """
     url = f"https://finance.yahoo.com/quote/{symbol}?p={symbol}"
     yahoo_finance_source = requests.get(
         url, headers={"USER-AGENT": "Mozilla/5.0"}, timeout=10
     ).text
     soup = BeautifulSoup(yahoo_finance_source, "html.parser")
-    specific_fin_streamer_tag = soup.find("fin-streamer", {"data-test": "qsp-price"})
+    specific_fin_streamer_tag = soup.find("fin-streamer", {"data-testid": "qsp-price"})
 
     if specific_fin_streamer_tag:
         text = specific_fin_streamer_tag.get_text()
@@ -18,5 +34,9 @@ def stock_price(symbol: str = "AAPL") -> str:
 
 # Search for the symbol at https://finance.yahoo.com/lookup
 if __name__ == "__main__":
+    from doctest import testmod
+
+    testmod()
+
     for symbol in "AAPL AMZN IBM GOOG MSFT ORCL".split():
         print(f"Current {symbol:<4} stock price is {stock_price(symbol):>8}")