80fcecb13c
assertEquals is a deprecated alias for assertEqual and has been removed in Python 3.12. This wasn't an issue previously because we used a vendored version of the unittest module. Now that we use the built-in version this gets updated together with the Python version used to run the test suite.
92 lines
3.3 KiB
Python
92 lines
3.3 KiB
Python
"""Test that we handle inferiors which change their process group"""
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import os
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import lldb
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test import lldbutil
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class ChangeProcessGroupTestCase(TestBase):
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NO_DEBUG_INFO_TESTCASE = True
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def setUp(self):
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# Call super's setUp().
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TestBase.setUp(self)
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# Find the line number to break for main.c.
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self.line = line_number("main.c", "// Set breakpoint here")
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@skipIfFreeBSD # Times out on FreeBSD llvm.org/pr23731
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@skipIfWindows # setpgid call does not exist on Windows
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@expectedFailureAndroid("http://llvm.org/pr23762", api_levels=[16])
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@expectedFailureNetBSD
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@skipIftvOS # fork not available on tvOS.
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@skipIfwatchOS # fork not available on watchOS.
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def test_setpgid(self):
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self.build()
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exe = self.getBuildArtifact("a.out")
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# Use a file as a synchronization point between test and inferior.
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pid_file_path = lldbutil.append_to_process_working_directory(
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self, "pid_file_%d" % (int(time.time()))
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)
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self.addTearDownHook(
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lambda: self.run_platform_command("rm %s" % (pid_file_path))
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)
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popen = self.spawnSubprocess(exe, [pid_file_path])
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pid = lldbutil.wait_for_file_on_target(self, pid_file_path)
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# make sure we cleanup the forked child also
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def cleanupChild():
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if lldb.remote_platform:
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lldb.remote_platform.Kill(int(pid))
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else:
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if os.path.exists("/proc/" + pid):
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os.kill(int(pid), signal.SIGKILL)
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self.addTearDownHook(cleanupChild)
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# Create a target by the debugger.
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target, VALID_TARGET)
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listener = lldb.SBListener("my.attach.listener")
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error = lldb.SBError()
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process = target.AttachToProcessWithID(listener, int(pid), error)
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self.assertTrue(error.Success() and process, PROCESS_IS_VALID)
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# set a breakpoint just before the setpgid() call
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lldbutil.run_break_set_by_file_and_line(
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self, "main.c", self.line, num_expected_locations=-1
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)
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thread = process.GetSelectedThread()
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# release the child from its loop
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value = thread.GetSelectedFrame().EvaluateExpression("release_child_flag = 1")
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self.assertTrue(value.IsValid())
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self.assertEqual(value.GetValueAsUnsigned(0), 1)
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process.Continue()
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# make sure the child's process group id is different from its pid
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value = thread.GetSelectedFrame().EvaluateExpression("(int)getpgid(0)")
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self.assertTrue(value.IsValid())
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self.assertNotEqual(value.GetValueAsUnsigned(0), int(pid))
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# step over the setpgid() call
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thread.StepOver()
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self.assertStopReason(thread.GetStopReason(), lldb.eStopReasonPlanComplete)
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# verify that the process group has been set correctly
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# this also checks that we are still in full control of the child
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value = thread.GetSelectedFrame().EvaluateExpression("(int)getpgid(0)")
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self.assertTrue(value.IsValid())
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self.assertEqual(value.GetValueAsUnsigned(0), int(pid))
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# run to completion
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process.Continue()
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self.assertState(process.GetState(), lldb.eStateExited)
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