1 files changed, 129 insertions, 0 deletions
diff --git a/packages/Python/lldbsuite/test/lang/cpp/dynamic-value/TestCppValueCast.py b/packages/Python/lldbsuite/test/lang/cpp/dynamic-value/TestCppValueCast.py
new file mode 100644
index 000000000000..4e23cd899285
--- /dev/null
+++ b/packages/Python/lldbsuite/test/lang/cpp/dynamic-value/TestCppValueCast.py
@@ -0,0 +1,129 @@
+"""
+Test lldb Python API SBValue::Cast(SBType) for C++ types.
+"""
+
+from __future__ import print_function
+
+
+
+import unittest2
+import os, time
+import re
+import lldb
+import lldbsuite.test.lldbutil as lldbutil
+from lldbsuite.test.lldbtest import *
+
+class CppValueCastTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    @unittest2.expectedFailure("rdar://problem/10808472 SBValue::Cast test case is failing (virtual inheritance)")
+    @add_test_categories(['pyapi'])
+    def test_value_cast_with_virtual_inheritance(self):
+        """Test SBValue::Cast(SBType) API for C++ types with virtual inheritance."""
+        self.build(dictionary=self.d_virtual)
+        self.setTearDownCleanup(dictionary=self.d_virtual)
+        self.do_sbvalue_cast(self.exe_name)
+
+    @add_test_categories(['pyapi'])
+    def test_value_cast_with_regular_inheritance(self):
+        """Test SBValue::Cast(SBType) API for C++ types with regular inheritance."""
+        self.build(dictionary=self.d_regular)
+        self.setTearDownCleanup(dictionary=self.d_regular)
+        self.do_sbvalue_cast(self.exe_name)
+
+    def setUp(self):
+        # Call super's setUp().                                                                                                           
+        TestBase.setUp(self)
+
+        # Find the line number to break for main.c.                                                                                       
+        self.source = 'sbvalue-cast.cpp';
+        self.line = line_number(self.source, '// Set breakpoint here.')
+        self.exe_name = self.testMethodName
+        self.d_virtual = {'CXX_SOURCES': self.source, 'EXE': self.exe_name, 'CFLAGS_EXTRAS': '-DDO_VIRTUAL_INHERITANCE'}
+        self.d_regular = {'CXX_SOURCES': self.source, 'EXE': self.exe_name}
+
+    def do_sbvalue_cast (self, exe_name):
+        """Test SBValue::Cast(SBType) API for C++ types."""
+        exe = os.path.join(os.getcwd(), exe_name)
+
+        # Create a target from the debugger.
+
+        target = self.dbg.CreateTarget (exe)
+        self.assertTrue(target, VALID_TARGET)
+
+        # Set up our breakpoints:
+
+        breakpoint = target.BreakpointCreateByLocation(self.source, self.line)
+        self.assertTrue(breakpoint, VALID_BREAKPOINT)
+
+        # Now launch the process, and do not stop at the entry point.
+        process = target.LaunchSimple (None, None, self.get_process_working_directory())
+
+        self.assertTrue(process.GetState() == lldb.eStateStopped,
+                        PROCESS_STOPPED)
+
+        # Find DerivedA and DerivedB types.
+        typeA = target.FindFirstType('DerivedA')
+        typeB = target.FindFirstType('DerivedB')
+        self.DebugSBType(typeA)
+        self.DebugSBType(typeB)
+        self.assertTrue(typeA)
+        self.assertTrue(typeB)
+        error = lldb.SBError()
+
+        # First stop is for DerivedA instance.
+        threads = lldbutil.get_threads_stopped_at_breakpoint (process, breakpoint)
+        self.assertTrue (len(threads) == 1)
+        thread = threads[0]
+        frame0 = thread.GetFrameAtIndex(0)
+
+        tellerA = frame0.FindVariable('teller', lldb.eNoDynamicValues)
+        self.DebugSBValue(tellerA)
+        self.assertTrue(tellerA.GetChildMemberWithName('m_base_val').GetValueAsUnsigned(error, 0) == 20)
+
+        if self.TraceOn():
+            for child in tellerA:
+                print("child name:", child.GetName())
+                print(child)
+
+        # Call SBValue.Cast() to obtain instanceA.
+        instanceA = tellerA.Cast(typeA.GetPointerType())
+        self.DebugSBValue(instanceA)
+
+        # Iterate through all the children and print their values.
+        if self.TraceOn():
+            for child in instanceA:
+                print("child name:", child.GetName())
+                print(child)
+        a_member_val = instanceA.GetChildMemberWithName('m_a_val')
+        self.DebugSBValue(a_member_val)
+        self.assertTrue(a_member_val.GetValueAsUnsigned(error, 0) == 10)
+
+        # Second stop is for DerivedB instance.
+        threads = lldbutil.continue_to_breakpoint (process, breakpoint)
+        self.assertTrue (len(threads) == 1)
+        thread = threads[0]
+        frame0 = thread.GetFrameAtIndex(0)
+
+        tellerB = frame0.FindVariable('teller', lldb.eNoDynamicValues)
+        self.DebugSBValue(tellerB)
+        self.assertTrue(tellerB.GetChildMemberWithName('m_base_val').GetValueAsUnsigned(error, 0) == 12)
+
+        if self.TraceOn():
+            for child in tellerB:
+                print("child name:", child.GetName())
+                print(child)
+
+        # Call SBValue.Cast() to obtain instanceB.
+        instanceB = tellerB.Cast(typeB.GetPointerType())
+        self.DebugSBValue(instanceB)
+
+        # Iterate through all the children and print their values.
+        if self.TraceOn():
+            for child in instanceB:
+                print("child name:", child.GetName())
+                print(child)
+        b_member_val = instanceB.GetChildMemberWithName('m_b_val')
+        self.DebugSBValue(b_member_val)
+        self.assertTrue(b_member_val.GetValueAsUnsigned(error, 0) == 36)