f188c97cc1
While debugging the tests for #155000 I found it helpful to have both sides of the simulated gdb-rsp traffic rather than just the responses so I've extended the packetLog in MockGDBServerResponder to record traffic in both directions. Tests have been updated accordingly
109 lines
3.5 KiB
Python
109 lines
3.5 KiB
Python
import os
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import os.path
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import lldb
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test.gdbclientutils import *
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class GDBRemoteTestBase(TestBase):
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"""
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Base class for GDB client tests.
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This class will setup and start a mock GDB server for the test to use.
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It also provides assertPacketLogReceived, which simplifies the checking
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of packets sent by the client.
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"""
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NO_DEBUG_INFO_TESTCASE = True
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server = None
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server_socket_class = TCPServerSocket
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def setUp(self):
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TestBase.setUp(self)
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self.server = MockGDBServer(self.server_socket_class())
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self.server.start()
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def tearDown(self):
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# TestBase.tearDown will kill the process, but we need to kill it early
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# so its client connection closes and we can stop the server before
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# finally calling the base tearDown.
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if self.process() is not None:
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self.process().Kill()
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self.server.stop()
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TestBase.tearDown(self)
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def createTarget(self, yaml_path):
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"""
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Create a target by auto-generating the object based on the given yaml
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instructions.
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This will track the generated object so it can be automatically removed
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during tearDown.
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"""
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yaml_base, ext = os.path.splitext(yaml_path)
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obj_path = self.getBuildArtifact(yaml_base)
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self.yaml2obj(yaml_path, obj_path)
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return self.dbg.CreateTarget(obj_path)
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def connect(self, target, plugin="gdb-remote"):
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"""
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Create a process by connecting to the mock GDB server.
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Includes assertions that the process was successfully created.
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"""
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listener = self.dbg.GetListener()
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error = lldb.SBError()
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process = target.ConnectRemote(
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listener, self.server.get_connect_url(), plugin, error
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)
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self.assertTrue(error.Success(), error.description)
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self.assertTrue(process, PROCESS_IS_VALID)
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return process
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def assertPacketLogReceived(self, packets, log: PacketLog = None):
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"""
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Assert that the mock server's packet log received the given packets.
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The packet log includes all packets sent by the client and received
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by the server. This function makes it easy to verify that the client
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sent the expected packets to the server.
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The check does not require that the packets be consecutive, but does
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require that they are ordered in the log as they ordered in the arg.
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"""
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if log is None:
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received = self.server.responder.packetLog.get_received()
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else:
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received = log.get_received()
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i = 0
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j = 0
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while i < len(packets) and j < len(received):
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if received[j] == packets[i]:
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i += 1
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j += 1
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if i < len(packets):
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self.fail(
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"Did not receive: %s\nLast 10 packets:\n\t%s"
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% (packets[i], "\n\t".join(received))
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)
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class GDBPlatformClientTestBase(GDBRemoteTestBase):
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"""
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Base class for platform server clients.
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This class extends GDBRemoteTestBase by automatically connecting
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via "platform connect" in the setUp() method.
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"""
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def setUp(self):
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super().setUp()
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self.runCmd("platform select remote-gdb-server")
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self.runCmd("platform connect " + self.server.get_connect_url())
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self.assertTrue(self.dbg.GetSelectedPlatform().IsConnected())
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def tearDown(self):
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self.dbg.GetSelectedPlatform().DisconnectRemote()
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super().tearDown()
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