Add TestValueAPI.py to exercise the newly added/modified SBValue APIs:

o GetChildAtIndex, and
o GetValueForExpressionPath

llvm-svn: 135315

1 files changed, 87 insertions, 0 deletions

diff --git a/lldb/test/python_api/value/TestValueAPI.py b/lldb/test/python_api/value/TestValueAPI.py
new file mode 100644
index 00000000000..b24752c4684
--- /dev/null
+++ b/lldb/test/python_api/value/TestValueAPI.py
@@ -0,0 +1,87 @@
+"""
+Test some SBValue APIs.
+"""
+
+import os, time
+import re
+import unittest2
+import lldb, lldbutil
+from lldbtest import *
+
+class ValueAPITestCase(TestBase):
+
+    mydir = os.path.join("python_api", "value")
+
+    @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
+    @python_api_test
+    def test_with_dsym(self):
+        """Exercise some SBValue APIs."""
+        d = {'EXE': self.exe_name}
+        self.buildDsym(dictionary=d)
+        self.setTearDownCleanup(dictionary=d)
+        self.value_api(self.exe_name)
+
+    @python_api_test
+    def test_with_dwarf(self):
+        """Exercise some SBValue APIs."""
+        d = {'EXE': self.exe_name}
+        self.buildDwarf(dictionary=d)
+        self.setTearDownCleanup(dictionary=d)
+        self.value_api(self.exe_name)
+
+    def setUp(self):
+        # Call super's setUp().
+        TestBase.setUp(self)
+        # We'll use the test method name as the exe_name.
+        self.exe_name = self.testMethodName
+        # Find the line number to of function 'c'.
+        self.line = line_number('main.c', '// Break at this line')
+
+    def value_api(self, exe_name):
+        """Exercise some SBValue APIs."""
+        exe = os.path.join(os.getcwd(), exe_name)
+
+        # Create a target by the debugger.
+        target = self.dbg.CreateTarget(exe)
+        self.assertTrue(target, VALID_TARGET)
+
+        # Create the breakpoint inside function 'main'.
+        breakpoint = target.BreakpointCreateByLocation('main.c', self.line)
+        self.assertTrue(breakpoint, VALID_BREAKPOINT)
+
+        # Now launch the process, and do not stop at entry point.
+        process = target.LaunchSimple(None, None, os.getcwd())
+        self.assertTrue(process, PROCESS_IS_VALID)
+
+        # Get Frame #0.
+        self.assertTrue(process.GetState() == lldb.eStateStopped)
+        thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint)
+        self.assertTrue(thread != None, "There should be a thread stopped due to breakpoint condition")
+        frame0 = thread.GetFrameAtIndex(0)
+
+        # Get variable 'str_ptr'.
+        value = frame0.FindVariable('str_ptr')
+        self.assertTrue(value, VALID_VARIABLE)
+        self.DebugSBValue(value)
+
+        # Get child at index 5 => 'Friday'.
+        child = value.GetChildAtIndex(5, lldb.eNoDynamicValues, True)
+        self.assertTrue(child, VALID_VARIABLE)
+        self.DebugSBValue(child)
+
+        self.expect(child.GetSummary(), exe=False,
+            substrs = ['Friday'])
+
+        # Now try to get at the same variable using GetValueForExpressionPath().
+        # These two SBValue objects should have the same value.
+        val2 = value.GetValueForExpressionPath('[5]')
+        self.assertTrue(val2, VALID_VARIABLE)
+        self.DebugSBValue(val2)
+        self.assertTrue(child.GetValue() == val2.GetValue() and
+                        child.GetSummary() == val2.GetSummary())
+        
+if __name__ == '__main__':
+    import atexit
+    lldb.SBDebugger.Initialize()
+    atexit.register(lambda: lldb.SBDebugger.Terminate())
+    unittest2.main()