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
130 lines
5.0 KiB
Python
130 lines
5.0 KiB
Python
"""
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Test lldb Python API SBValue::Cast(SBType) for C++ types.
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"""
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from __future__ import print_function
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import use_lldb_suite
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import unittest2
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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 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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@add_test_categories(['pyapi'])
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def test_value_cast_with_virtual_inheritance(self):
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"""Test SBValue::Cast(SBType) API for C++ types with virtual inheritance."""
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self.build(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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@add_test_categories(['pyapi'])
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def test_value_cast_with_regular_inheritance(self):
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"""Test SBValue::Cast(SBType) API for C++ types with regular inheritance."""
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self.build(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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