packages/Python/lldbsuite/test/functionalities/data-formatter/synthupdate/TestSyntheticFilterRecompute.py

   1 """
   2 Test lldb data formatter subsystem.
   3 """
   4
   5 from __future__ import print_function
   6
   7
   8 import datetime
   9 import os
  10 import time
  11 import lldb
  12 from lldbsuite.test.decorators import *
  13 from lldbsuite.test.lldbtest import *
  14 from lldbsuite.test import lldbutil
  15
  16
  17 class SyntheticFilterRecomputingTestCase(TestBase):
  18
  19     mydir = TestBase.compute_mydir(__file__)
  20
  21     def setUp(self):
  22         # Call super's setUp().
  23         TestBase.setUp(self)
  24         # Find the line number to break at.
  25         self.line = line_number('main.m', '// Set break point at this line.')
  26
  27     @skipUnlessDarwin
  28     def test_rdar12437442_with_run_command(self):
  29         """Test that we update SBValues correctly as dynamic types change."""
  30         self.build()
  31         self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)
  32
  33         lldbutil.run_break_set_by_file_and_line(
  34             self, "main.m", self.line, num_expected_locations=1, loc_exact=True)
  35
  36         self.runCmd("run", RUN_SUCCEEDED)
  37
  38         # The stop reason of the thread should be breakpoint.
  39         self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
  40                     substrs=['stopped',
  41                              'stop reason = breakpoint'])
  42
  43         # This is the function to remove the custom formats in order to have a
  44         # clean slate for the next test case.
  45         def cleanup():
  46             self.runCmd('type format clear', check=False)
  47             self.runCmd('type summary clear', check=False)
  48             self.runCmd('type synth clear', check=False)
  49
  50         # Execute the cleanup function during test case tear down.
  51         self.addTearDownHook(cleanup)
  52
  53         # Now run the bulk of the test
  54         id_x = self.dbg.GetSelectedTarget().GetProcess(
  55         ).GetSelectedThread().GetSelectedFrame().FindVariable("x")
  56         id_x.SetPreferDynamicValue(lldb.eDynamicCanRunTarget)
  57         id_x.SetPreferSyntheticValue(True)
  58
  59         if self.TraceOn():
  60             self.runCmd("expr --dynamic-type run-target --ptr-depth 1 -- x")
  61
  62         self.assertTrue(
  63             id_x.GetSummary() == '@"5 elements"',
  64             "array does not get correct summary")
  65
  66         self.runCmd("next")
  67         self.runCmd("frame select 0")
  68
  69         id_x = self.dbg.GetSelectedTarget().GetProcess(
  70         ).GetSelectedThread().GetSelectedFrame().FindVariable("x")
  71         id_x.SetPreferDynamicValue(lldb.eDynamicCanRunTarget)
  72         id_x.SetPreferSyntheticValue(True)
  73
  74         if self.TraceOn():
  75             self.runCmd("expr --dynamic-type run-target --ptr-depth 1 -- x")
  76
  77         self.assertTrue(
  78             id_x.GetNumChildren() == 7,
  79             "dictionary does not have 7 children")
  80         id_x.SetPreferSyntheticValue(False)
  81         self.assertFalse(
  82             id_x.GetNumChildren() == 7,
  83             "dictionary still looks synthetic")
  84         id_x.SetPreferSyntheticValue(True)
  85         self.assertTrue(
  86             id_x.GetSummary() == "7 key/value pairs",
  87             "dictionary does not get correct summary")