1 files changed, 17 insertions, 0 deletions
diff --git a/tests/extmod/usocket_tcp_basic.py b/tests/extmod/usocket_tcp_basic.py
new file mode 100644
index 000000000..368dfe3c9
--- /dev/null
+++ b/tests/extmod/usocket_tcp_basic.py
@@ -0,0 +1,17 @@
+# Test basic, stand-alone TCP socket functionality
+
+try:
+    import usocket as socket, uerrno as errno
+except ImportError:
+    try:
+        import socket, errno
+    except ImportError:
+        print("SKIP")
+        raise SystemExit
+
+# recv() on a fresh socket should raise ENOTCONN
+s = socket.socket()
+try:
+    s.recv(1)
+except OSError as er:
+    print("ENOTCONN:", er.args[0] == errno.ENOTCONN)