packages/Python/lldbsuite/test/functionalities/data-formatter/data-formatter-stl/libcxx/function/TestLibCxxFunction.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.decorators import *
  12 from lldbsuite.test.lldbtest import *
  13 from lldbsuite.test import lldbutil
  14
  15
  16 class LibCxxFunctionTestCase(TestBase):
  17
  18     mydir = TestBase.compute_mydir(__file__)
  19
  20     def get_variable(self, name):
  21         var = self.frame().FindVariable(name)
  22         var.SetPreferDynamicValue(lldb.eDynamicCanRunTarget)
  23         var.SetPreferSyntheticValue(True)
  24         return var
  25
  26     @skipIf(compiler="gcc")
  27     @skipIfWindows  # libc++ not ported to Windows yet
  28     def test(self):
  29         """Test that std::function as defined by libc++ is correctly printed by LLDB"""
  30         self.build()
  31         self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)
  32
  33         bkpt = self.target().FindBreakpointByID(
  34             lldbutil.run_break_set_by_source_regexp(
  35                 self, "Set break point at this line."))
  36
  37         self.runCmd("run", RUN_SUCCEEDED)
  38
  39         lldbutil.skip_if_library_missing(
  40             self, self.target(), lldbutil.PrintableRegex("libc\+\+"))
  41
  42         # The stop reason of the thread should be breakpoint.
  43         self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
  44                     substrs=['stopped',
  45                              'stop reason = breakpoint'])
  46
  47         f1 = self.get_variable('f1')
  48         f2 = self.get_variable('f2')
  49
  50         if self.TraceOn():
  51             print(f1)
  52         if self.TraceOn():
  53             print(f2)
  54
  55         self.assertTrue(f1.GetValueAsUnsigned(0) != 0, 'f1 has a valid value')
  56         self.assertTrue(f2.GetValueAsUnsigned(0) != 0, 'f2 has a valid value')