Refactored SDS1000X-E unit tests

1 files changed, 44 insertions, 0 deletions

diff --git a/lab_control/test/virtual_tcp_server.py b/lab_control/test/virtual_tcp_server.py
new file mode 100644
index 0000000..07a4345
--- /dev/null
+++ b/lab_control/test/virtual_tcp_server.py
@@ -0,0 +1,44 @@
+import socket
+import threading
+import atexit
+
+IP = "0.0.0.0"
+PORT = 5025
+
+# Bind server socket when this module is included
+_serverSocket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+_serverSocket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+_serverSocket.bind((IP, PORT))
+_serverSocket.listen(1)
+
+# Close it when the program exits
+def _cleanUp():
+    _serverSocket.close()
+atexit.register(_cleanUp)
+
+class VirtualTCPServer:
+    def __init__(self):
+        self._stopFlag = False
+        self._clientSocket = None
+        self._mainThread = threading.Thread(target=self._mainLoop)
+        self._mainThread.start()
+
+    def _mainLoop(self) -> None:
+        self._clientSocket, _ = _serverSocket.accept()
+        self._clientSocket.settimeout(0.1)
+
+        try:
+            while not self._stopFlag:
+                try:
+                    request = self._clientSocket.recv(4096).decode()
+                    response = self._handleRequest(request.strip())
+                    if response is not None:
+                        self._clientSocket.send(response.encode())
+                except TimeoutError as e:
+                    pass
+        finally:
+            self._clientSocket.close()
+    
+    def stop(self) -> None:
+        self._stopFlag = True
+        self._mainThread.join()