mgorny created this revision.
mgorny added reviewers: labath, teemperor, krytarowski, emaste.
mgorny requested review of this revision.
Add a minimal mock server utilizing a pty, and add a client test
connecting to that server.
https://reviews.llvm.org/D110878
Files:
lldb/test/API/functionalities/gdb_remote_client/TestPty.py
lldb/test/API/functionalities/gdb_remote_client/gdbclientutils.py
Index: lldb/test/API/functionalities/gdb_remote_client/gdbclientutils.py
===================================================================
--- lldb/test/API/functionalities/gdb_remote_client/gdbclientutils.py
+++ lldb/test/API/functionalities/gdb_remote_client/gdbclientutils.py
@@ -1,8 +1,12 @@
+import ctypes
import errno
+import io
import os
import os.path
+import pty
import threading
import socket
+import tty
import lldb
import binascii
import traceback
@@ -352,21 +356,26 @@
def __init__(self):
self.responder = MockGDBServerResponder()
- def start(self):
+ def _bind_and_listen(self):
family, type, proto, _, addr = socket.getaddrinfo("localhost", 0,
proto=socket.IPPROTO_TCP)[0]
- self._socket = socket.socket(family, type, proto)
-
+ sock = socket.socket(family, type, proto)
- self._socket.bind(addr)
- self._socket.listen(1)
+ sock.bind(addr)
+ sock.listen(1)
+ return sock
+ def start(self):
+ self._socket = self._bind_and_listen()
# Start a thread that waits for a client connection.
self._thread = threading.Thread(target=self._run)
self._thread.start()
- def stop(self):
+ def _close(self):
self._socket.close()
+
+ def stop(self):
+ self._close()
self._thread.join()
self._thread = None
@@ -510,6 +519,51 @@
class InvalidPacketException(Exception):
pass
+
+class PtySocket(io.FileIO):
+ """Pseudo-pocket wrapping a pty."""
+
+ def __init__(self, fd):
+ tty.setraw(fd)
+ super().__init__(fd, 'r+')
+
+ def accept(self):
+ return self, ''
+
+ def close(self):
+ # the socket is reused, so don't close it yet
+ pass
+
+ def recv(self, size):
+ return self.read(size)
+
+ def sendall(self, data):
+ return self.write(data)
+
+ def settimeout(self, timeout):
+ pass
+
+
+class MockPtyGDBServer(MockGDBServer):
+ """
+ A variation of MockGDBServer that uses a pty instead of TCP.
+ """
+
+ def _bind_and_listen(self):
+ self._master, self._slave = pty.openpty()
+ return PtySocket(self._master)
+
+ def _close(self):
+ os.close(self._slave)
+ os.close(self._master)
+
+ def get_connect_address(self):
+ libc = ctypes.CDLL(None)
+ libc.ptsname.argtypes = (ctypes.c_int,)
+ libc.ptsname.restype = ctypes.c_char_p
+ return libc.ptsname(self._master).decode()
+
+
class GDBRemoteTestBase(TestBase):
"""
Base class for GDB client tests.
Index: lldb/test/API/functionalities/gdb_remote_client/TestPty.py
===================================================================
--- /dev/null
+++ lldb/test/API/functionalities/gdb_remote_client/TestPty.py
@@ -0,0 +1,32 @@
+import lldb
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test.decorators import *
+from gdbclientutils import *
+
+
+class TestPty(TestBase):
+ mydir = TestBase.compute_mydir(__file__)
+
+ def setUp(self):
+ super().setUp()
+ self.server = MockPtyGDBServer()
+ self.server.start()
+
+ def tearDown(self):
+ if self.process() is not None:
+ self.process().Kill()
+ self.server.stop()
+ super().tearDown()
+
+ @skipIfWindows
+ def test_process_connect_sync(self):
+ """Test the gdb-remote command in synchronous mode"""
+ try:
+ self.dbg.SetAsync(False)
+ self.expect("platform select remote-gdb-server",
+ substrs=['Platform: remote-gdb-server', 'Connected: no'])
+ self.expect("process connect file://" +
+ self.server.get_connect_address(),
+ substrs=['Process', 'stopped'])
+ finally:
+ self.dbg.GetSelectedPlatform().DisconnectRemote()
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