Add test with MISSING alerts

python/ql/test/library-tests/frameworks/hdbcli/pep249.py

@@ -5,5 +5,51 @@ cursor = conn.cursor()
 
 cursor.execute("some sql", (42,))  # $ getSql="some sql"
 cursor.executemany("some sql", (42,))  # $ getSql="some sql"
-    
+
 cursor.close()
+
+
+# ---------------------------------------------------------------------------
+# Connection stored in a class attribute and accessed via various patterns
+# ---------------------------------------------------------------------------
+
+
+class WrapperA:
+    def __init__(self):
+        self._conn = dbapi.connect(address="hostname", port=300, user="username", pass_arg="testpass")
+
+    def get_connection(self):
+        return self._conn
+
+
+# Getter called on a fresh constructor result
+conn_a1 = WrapperA().get_connection()
+cursor_a1 = conn_a1.cursor()
+cursor_a1.execute("some sql", (42,))  # $ MISSING: getSql="some sql"
+
+# Getter called via a stored wrapper instance
+wrapper_instance = WrapperA()
+conn_a2 = wrapper_instance.get_connection()
+cursor_a2 = conn_a2.cursor()
+cursor_a2.execute("some sql", (42,))  # $ MISSING: getSql="some sql"
+
+# Direct attribute access on a fresh constructor result
+conn_b = WrapperA()._conn
+cursor_b = conn_b.cursor()
+cursor_b.execute("some sql", (42,))  # $ MISSING: getSql="some sql"
+
+
+class WrapperB:
+    """Stores the connection under a different attribute name."""
+
+    def __init__(self):
+        self._hana = dbapi.connect(address="hostname", port=300, user="username", pass_arg="testpass")
+
+    def cursor(self):
+        return self._hana.cursor()
+
+
+# Direct attribute access on a stored instance (mirrors hdb_con3 in the issue)
+conn_c = WrapperB()._hana
+cursor_c = conn_c.cursor()
+cursor_c.execute("some sql", (42,))  # $ MISSING: getSql="some sql"