packages/Python/lldbsuite/test/functionalities/data-formatter/language_category_updates/TestDataFormatterLanguageCategoryUpdates.py

   1 """
   2 Test lldb data formatter subsystem.
   3 """
   4
   5 from __future__ import print_function
   6
   7
   8 import os
   9 import time
  10 import lldb
  11 from lldbsuite.test.lldbtest import *
  12 import lldbsuite.test.lldbutil as lldbutil
  13
  14
  15 class LanguageCategoryUpdatesTestCase(TestBase):
  16
  17     mydir = TestBase.compute_mydir(__file__)
  18
  19     def setUp(self):
  20         # Call super's setUp().
  21         TestBase.setUp(self)
  22         # Find the line number to break at.
  23         self.line = line_number('main.cpp', '// break here')
  24
  25     def test_with_run_command(self):
  26         """Test that LLDB correctly cleans caches when language categories change."""
  27         # This is the function to remove the custom formats in order to have a
  28         # clean slate for the next test case.
  29         def cleanup():
  30             if hasattr(
  31                     self,
  32                     'type_category') and hasattr(
  33                     self,
  34                     'type_specifier'):
  35                 self.type_category.DeleteTypeSummary(self.type_specifier)
  36
  37         # Execute the cleanup function during test case tear down.
  38         self.addTearDownHook(cleanup)
  39
  40         self.build()
  41         self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)
  42
  43         lldbutil.run_break_set_by_file_and_line(
  44             self, "main.cpp", self.line, num_expected_locations=1, loc_exact=True)
  45
  46         self.runCmd("run", RUN_SUCCEEDED)
  47
  48         # The stop reason of the thread should be breakpoint.
  49         self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
  50                     substrs=['stopped',
  51                              'stop reason = breakpoint'])
  52
  53         self.expect(
  54             "frame variable",
  55             substrs=[
  56                 '(S)',
  57                 'object',
  58                 '123',
  59                 '456'],
  60             matching=True)
  61
  62         self.type_category = self.dbg.GetCategory(
  63             lldb.eLanguageTypeC_plus_plus)
  64         type_summary = lldb.SBTypeSummary.CreateWithSummaryString(
  65             "this is an object of type S")
  66         self.type_specifier = lldb.SBTypeNameSpecifier('S')
  67         self.type_category.AddTypeSummary(self.type_specifier, type_summary)
  68
  69         self.expect(
  70             "frame variable",
  71             substrs=['this is an object of type S'],
  72             matching=True)
  73
  74         self.type_category.DeleteTypeSummary(self.type_specifier)
  75         self.expect(
  76             "frame variable",
  77             substrs=['this is an object of type S'],
  78             matching=False)
  79         self.expect(
  80             "frame variable",
  81             substrs=[
  82                 '(S)',
  83                 'object',
  84                 '123',
  85                 '456'],
  86             matching=True)