XFail TestEnumTypes.py on Windows

[amccarth]

Summary

Dereferencing a null pointer in an expr "works" on Windows. I believe that's a long-standing problem that's just been exposed by the reworking of this test last week. The rest of this test works.

packages/Python/lldbsuite/test/lang/c/enum_types/TestEnumTypes.py

class EnumTypesTestCase(TestBase):
     mydir = TestBase.compute_mydir(__file__)
 
     def setUp(self):
         # Call super's setUp().
         TestBase.setUp(self)
         # Find the line number to break inside main().
         self.line = line_number('main.c', '// Set break point at this line.')
 
+    @expectedFailAll(oslist=['windows'])  // derefing the null pointer "works" on Windows
     def test(self):
         """Test 'image lookup -t days' and check for correct display and enum value printing."""
         self.build()
         exe = os.path.join(os.getcwd(), "a.out")
         self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
 
         # Break inside the main.
         bkpt_id = lldbutil.run_break_set_by_file_and_line (self, "main.c", self.line, num_expected_locations=1, loc_exact=True)
def test(self):
                        'Wednesday',
                        'Thursday',
                        'Friday',
                        'Saturday',
                        'Sunday',
                        'kNumDays',
                        '}'])
 
-        enum_values = [ '-4', 
-                        'Monday', 
-                        'Tuesday', 
-                        'Wednesday', 
+        enum_values = [ '-4',
+                        'Monday',
+                        'Tuesday',
+                        'Wednesday',
                         'Thursday',
                         'Friday',
                         'Saturday',
                         'Sunday',
                         'kNumDays',
                         '5'];
-                                                                                                                             
         # Make sure a pointer to an anonymous enum type does crash LLDB and displays correctly using
         # frame variable and expression commands
         self.expect('frame variable f.op', DATA_TYPES_DISPLAYED_CORRECTLY, substrs = ['ops *', 'f.op'], patterns = ['0x0+$'])
         self.expect('frame variable *f.op', DATA_TYPES_DISPLAYED_CORRECTLY, substrs = ['ops', '*f.op', '<parent is NULL>'])
         self.expect('expr f.op', DATA_TYPES_DISPLAYED_CORRECTLY, substrs = ['ops *', '$'], patterns = ['0x0+$'])
         self.expect('expr *f.op', DATA_TYPES_DISPLAYED_CORRECTLY, substrs = ['error:'], error = True)
-        
         bkpt = self.target().FindBreakpointByID(bkpt_id)
         for enum_value in enum_values:
             self.expect("frame variable day", 'check for valid enumeration value',
                 substrs = [enum_value])
             lldbutil.continue_to_breakpoint (self.process(), bkpt)

packages/Python/lldbsuite/test/lang/c/enum_types/main.c

enum days {
         Thursday,
         Friday,
         Saturday,
         Sunday,
         kNumDays
     };
     enum days day;
     struct foo f;
-  f.op = NULL;
+    f.op = NULL;
     for (day = Monday - 1; day <= kNumDays + 1; day++)
     {
         printf("day as int is %i\n", (int)day); // Set break point at this line.
     }
     return 0;
 }