1 files changed, 17 insertions, 0 deletions
diff --git a/tests/extmod/socket_fileno.py b/tests/extmod/socket_fileno.py
new file mode 100644
index 000000000..da15825e3
--- /dev/null
+++ b/tests/extmod/socket_fileno.py
@@ -0,0 +1,17 @@
+# Test socket.fileno() functionality
+
+try:
+    import socket
+except ImportError:
+    print("SKIP")
+    raise SystemExit
+
+if not hasattr(socket.socket, "fileno"):
+    print("SKIP")
+    raise SystemExit
+
+s = socket.socket()
+print(s.fileno() >= 0)
+
+s.close()
+print(s.fileno())  #  should print -1