153 lines
6.0 KiB
Python
153 lines
6.0 KiB
Python
"""
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Test lldb Python API SBValue::Cast(SBType) for C++ types.
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"""
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import os, time
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import re
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import unittest2
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import lldb, lldbutil
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from lldbtest import *
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class CppValueCastTestCase(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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@unittest2.expectedFailure("rdar://problem/10808472 SBValue::Cast test case is failing (virtual inheritance)")
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@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
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@python_api_test
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@dsym_test
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def test_value_cast_with_dsym_and_virtual_inheritance(self):
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"""Test SBValue::Cast(SBType) API for C++ types with virtual inheritance."""
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self.buildDsym(dictionary=self.d_virtual)
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self.setTearDownCleanup(dictionary=self.d_virtual)
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self.do_sbvalue_cast(self.exe_name)
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@unittest2.expectedFailure("rdar://problem/10808472 SBValue::Cast test case is failing (virtual inheritance)")
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@python_api_test
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@dwarf_test
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def test_value_cast_with_dwarf_and_virtual_inheritance(self):
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"""Test SBValue::Cast(SBType) API for C++ types with virtual inheritance."""
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self.buildDwarf(dictionary=self.d_virtual)
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self.setTearDownCleanup(dictionary=self.d_virtual)
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self.do_sbvalue_cast(self.exe_name)
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@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
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@python_api_test
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@dsym_test
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def test_value_cast_with_dsym_and_regular_inheritance(self):
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"""Test SBValue::Cast(SBType) API for C++ types with regular inheritance."""
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self.buildDsym(dictionary=self.d_regular)
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self.setTearDownCleanup(dictionary=self.d_regular)
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self.do_sbvalue_cast(self.exe_name)
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@python_api_test
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@dwarf_test
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def test_value_cast_with_dwarf_and_regular_inheritance(self):
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"""Test SBValue::Cast(SBType) API for C++ types with regular inheritance."""
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self.buildDwarf(dictionary=self.d_regular)
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self.setTearDownCleanup(dictionary=self.d_regular)
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self.do_sbvalue_cast(self.exe_name)
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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.source = 'sbvalue-cast.cpp';
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self.line = line_number(self.source, '// Set breakpoint here.')
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self.exe_name = self.testMethodName
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self.d_virtual = {'CXX_SOURCES': self.source, 'EXE': self.exe_name, 'CFLAGS_EXTRAS': '-DDO_VIRTUAL_INHERITANCE'}
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self.d_regular = {'CXX_SOURCES': self.source, 'EXE': self.exe_name}
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def do_sbvalue_cast (self, exe_name):
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"""Test SBValue::Cast(SBType) API for C++ types."""
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exe = os.path.join(os.getcwd(), exe_name)
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# Create a target from the debugger.
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target = self.dbg.CreateTarget (exe)
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self.assertTrue(target, VALID_TARGET)
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# Set up our breakpoints:
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breakpoint = target.BreakpointCreateByLocation(self.source, self.line)
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self.assertTrue(breakpoint, VALID_BREAKPOINT)
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# Now launch the process, and do not stop at the entry point.
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process = target.LaunchSimple (None, None, self.get_process_working_directory())
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self.assertTrue(process.GetState() == lldb.eStateStopped,
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PROCESS_STOPPED)
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# Find DerivedA and DerivedB types.
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typeA = target.FindFirstType('DerivedA')
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typeB = target.FindFirstType('DerivedB')
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self.DebugSBType(typeA)
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self.DebugSBType(typeB)
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self.assertTrue(typeA)
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self.assertTrue(typeB)
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error = lldb.SBError()
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# First stop is for DerivedA instance.
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threads = lldbutil.get_threads_stopped_at_breakpoint (process, breakpoint)
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self.assertTrue (len(threads) == 1)
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thread = threads[0]
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frame0 = thread.GetFrameAtIndex(0)
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tellerA = frame0.FindVariable('teller', lldb.eNoDynamicValues)
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self.DebugSBValue(tellerA)
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self.assertTrue(tellerA.GetChildMemberWithName('m_base_val').GetValueAsUnsigned(error, 0) == 20)
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if self.TraceOn():
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for child in tellerA:
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print "child name:", child.GetName()
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print child
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# Call SBValue.Cast() to obtain instanceA.
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instanceA = tellerA.Cast(typeA.GetPointerType())
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self.DebugSBValue(instanceA)
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# Iterate through all the children and print their values.
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if self.TraceOn():
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for child in instanceA:
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print "child name:", child.GetName()
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print child
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a_member_val = instanceA.GetChildMemberWithName('m_a_val')
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self.DebugSBValue(a_member_val)
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self.assertTrue(a_member_val.GetValueAsUnsigned(error, 0) == 10)
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# Second stop is for DerivedB instance.
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threads = lldbutil.continue_to_breakpoint (process, breakpoint)
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self.assertTrue (len(threads) == 1)
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thread = threads[0]
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frame0 = thread.GetFrameAtIndex(0)
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tellerB = frame0.FindVariable('teller', lldb.eNoDynamicValues)
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self.DebugSBValue(tellerB)
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self.assertTrue(tellerB.GetChildMemberWithName('m_base_val').GetValueAsUnsigned(error, 0) == 12)
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if self.TraceOn():
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for child in tellerB:
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print "child name:", child.GetName()
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print child
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# Call SBValue.Cast() to obtain instanceB.
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instanceB = tellerB.Cast(typeB.GetPointerType())
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self.DebugSBValue(instanceB)
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# Iterate through all the children and print their values.
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if self.TraceOn():
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for child in instanceB:
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print "child name:", child.GetName()
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print child
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b_member_val = instanceB.GetChildMemberWithName('m_b_val')
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self.DebugSBValue(b_member_val)
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self.assertTrue(b_member_val.GetValueAsUnsigned(error, 0) == 36)
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if __name__ == '__main__':
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import atexit
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lldb.SBDebugger.Initialize()
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atexit.register(lambda: lldb.SBDebugger.Terminate())
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unittest2.main()
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