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95c453a221
For convenience, we had added the folder that dotest.py was in to sys.path, so that we could easily write things like `import lldbutil` from anywhere and any test. This introduces a subtle problem when using Python's package system, because when unittest2 imports a particular test suite, the test suite is detached from the package. Thus, writing "import lldbutil" from dotest imports it as part of the package, and writing the same line from a test does a fresh import since the importing module was not part of the same package. The real way to fix this is to use absolute imports everywhere. Instead of writing "import lldbutil", we need to write "import lldbsuite.test.util". This patch fixes up that and all other similar cases, and additionally removes the script directory from sys.path to ensure that this can't happen again. llvm-svn: 251886
58 lines
2.1 KiB
Python
58 lines
2.1 KiB
Python
"""
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Test that expr will time out and allow other threads to run if it blocks.
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"""
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from __future__ import print_function
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import use_lldb_suite
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import os, time
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import re
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import lldb
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import lldbsuite.test.lldbutil as lldbutil
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from lldbsuite.test.lldbtest import *
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class ExprDoesntDeadlockTestCase(TestBase):
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def getCategories(self):
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return ['basic_process']
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mydir = TestBase.compute_mydir(__file__)
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@expectedFailureFreeBSD('llvm.org/pr17946')
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@expectedFlakeyLinux # failed 1/365 test runs, line 61, thread.IsValid()
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@expectedFailureWindows # Windows doesn't have pthreads, need to port this test.
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def test_with_run_command(self):
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"""Test that expr will time out and allow other threads to run if it blocks."""
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self.build()
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exe = os.path.join(os.getcwd(), "a.out")
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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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# Now create a breakpoint at source line before call_me_to_get_lock gets called.
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main_file_spec = lldb.SBFileSpec ("locking.c")
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breakpoint = target.BreakpointCreateBySourceRegex('Break here', main_file_spec)
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if self.TraceOn():
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print("breakpoint:", breakpoint)
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self.assertTrue(breakpoint and
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breakpoint.GetNumLocations() == 1,
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VALID_BREAKPOINT)
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# Now launch the process, and do not stop at entry point.
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process = target.LaunchSimple (None, None, self.get_process_working_directory())
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self.assertTrue(process, PROCESS_IS_VALID)
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# Frame #0 should be on self.line1 and the break condition should hold.
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from lldbsuite.test.lldbutil import get_stopped_thread
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thread = get_stopped_thread(process, lldb.eStopReasonBreakpoint)
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self.assertTrue(thread.IsValid(), "There should be a thread stopped due to breakpoint condition")
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frame0 = thread.GetFrameAtIndex(0)
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var = frame0.EvaluateExpression ("call_me_to_get_lock()")
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self.assertTrue (var.IsValid())
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self.assertTrue (var.GetValueAsSigned (0) == 567)
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