1 files changed, 50 insertions, 0 deletions
diff --git a/packages/Python/lldbsuite/test/functionalities/gdb_remote_client/TestThreadSelectionBug.py b/packages/Python/lldbsuite/test/functionalities/gdb_remote_client/TestThreadSelectionBug.py
new file mode 100644
index 000000000000..400a93661033
--- /dev/null
+++ b/packages/Python/lldbsuite/test/functionalities/gdb_remote_client/TestThreadSelectionBug.py
@@ -0,0 +1,50 @@
+from __future__ import print_function
+import lldb
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test.decorators import *
+from gdbclientutils import *
+
+
+class TestThreadSelectionBug(GDBRemoteTestBase):
+    def test(self):
+        class MyResponder(MockGDBServerResponder):
+            def cont(self):
+                # Simulate process stopping due to a raise(SIGINT)
+                return "T01reason:signal"
+
+        self.server.responder = MyResponder()
+        target = self.createTarget("a.yaml")
+        process = self.connect(target)
+        python_os_plugin_path = os.path.join(self.getSourceDir(),
+                                             'operating_system.py')
+        command = "settings set target.process.python-os-plugin-path '{}'".format(
+            python_os_plugin_path)
+        self.dbg.HandleCommand(command)
+
+        self.assertTrue(process, PROCESS_IS_VALID)
+        self.assertEqual(process.GetNumThreads(), 3)
+
+        # Verify our OS plug-in threads showed up
+        thread = process.GetThreadByID(0x1)
+        self.assertTrue(
+            thread.IsValid(),
+            "Make sure there is a thread 0x1 after we load the python OS plug-in")
+        thread = process.GetThreadByID(0x2)
+        self.assertTrue(
+            thread.IsValid(),
+            "Make sure there is a thread 0x2 after we load the python OS plug-in")
+        thread = process.GetThreadByID(0x3)
+        self.assertTrue(
+            thread.IsValid(),
+            "Make sure there is a thread 0x3 after we load the python OS plug-in")
+
+        # Verify that a thread other than 3 is selected.
+        thread = process.GetSelectedThread()
+        self.assertNotEqual(thread.GetThreadID(), 0x3)
+
+        # Verify that we select the thread backed by physical thread 1, rather
+        # than virtual thread 1. The mapping comes from the OS plugin, where we
+        # specified that thread 3 is backed by real thread 1.
+        process.Continue()
+        thread = process.GetSelectedThread()
+        self.assertEqual(thread.GetThreadID(), 0x3)