Add TestCallStdStringFunction.py which calls std::string member functions while stopped on a breakpoint.

llvm-svn: 131680

lldb/test/expression_command/call-function/Makefile

@@ -0,0 +1,5 @@
+LEVEL = ../../make
+
+CXX_SOURCES := main.cpp
+
+include $(LEVEL)/Makefile.rules

lldb/test/expression_command/call-function/TestCallStdStringFunction.py

@@ -0,0 +1,58 @@
+"""
+Test calling std::String member functions.
+"""
+
+import unittest2
+import lldb
+import lldbutil
+from lldbtest import *
+
+class ExprCommandCallFunctionTestCase(TestBase):
+
+    mydir = os.path.join("expression_command", "call-function")
+
+    def setUp(self):
+        # Call super's setUp().
+        TestBase.setUp(self)
+        # Find the line number to break for main.c.
+        self.line = line_number('main.cpp',
+                                '// Please test these expressions while stopped at this line:')
+
+    @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
+    def test_with_dsym(self):
+        """Test calling std::String member function."""
+        self.buildDsym()
+        self.call_function()
+
+    @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
+    @python_api_test
+    def test_with_dwarf_(self):
+        """Test calling std::String member function."""
+        self.buildDsym()
+        self.call_function()
+
+    def call_function(self):
+        """Test calling std::String member function."""
+        self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)
+
+        self.expect("breakpoint set -f main.cpp -l %d" % self.line,
+                    BREAKPOINT_CREATED,
+            startstr = "Breakpoint created: 1: file ='main.cpp', line = %d" %
+                        self.line)
+
+        self.runCmd("run", RUN_SUCCEEDED)
+
+        self.expect("print str",
+            substrs = ['Hello world'])
+
+        # runCmd: print str.c_str()
+        # runCmd failed!
+        # error: Couldn't convert the expression to DWARF
+        self.expect("print str.c_str()",
+            substrs = ['Hello world'])
+
+if __name__ == '__main__':
+    import atexit
+    lldb.SBDebugger.Initialize()
+    atexit.register(lambda: lldb.SBDebugger.Terminate())
+    unittest2.main()

lldb/test/expression_command/call-function/main.cpp

@@ -0,0 +1,15 @@
+#include <iostream>
+#include <string>
+
+int main (int argc, char const *argv[])
+{
+    std::string str = "Hello world";
+    std::cout << str << std::endl;
+    std::cout << str.c_str() << std::endl;
+    // Please test these expressions while stopped at this line:
+#if 0
+    print str
+    print str.c_str()
+#endif
+    return 0;
+}