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"""
Check if changing Format on an SBValue correctly propagates that new format to children as it should
"""
from __future__ import print_function
import os, time
import lldb
from lldbsuite.test.lldbtest import *
import lldbsuite.test.lldbutil as lldbutil
class FormatPropagationTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Find the line number to break at.
self.line = line_number('main.cpp', '// Set break point at this line.')
# rdar://problem/14035604
def test_with_run_command(self):
"""Check for an issue where capping does not work because the Target pointer appears to be changing behind our backs."""
self.build()
self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)
lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.line, num_expected_locations=1, loc_exact=True)
self.runCmd("run", RUN_SUCCEEDED)
# The stop reason of the thread should be breakpoint.
self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
substrs = ['stopped',
'stop reason = breakpoint'])
# This is the function to remove the custom formats in order to have a
# clean slate for the next test case.
def cleanup():
pass
# Execute the cleanup function during test case tear down.
self.addTearDownHook(cleanup)
# extract the parent and the children
frame = self.frame()
parent = self.frame().FindVariable("f")
self.assertTrue(parent != None and parent.IsValid(),"could not find f")
X = parent.GetChildMemberWithName("X")
self.assertTrue(X != None and X.IsValid(),"could not find X")
Y = parent.GetChildMemberWithName("Y")
self.assertTrue(Y != None and Y.IsValid(),"could not find Y")
# check their values now
self.assertTrue(X.GetValue() == "1", "X has an invalid value")
self.assertTrue(Y.GetValue() == "2", "Y has an invalid value")
# set the format on the parent
parent.SetFormat(lldb.eFormatHex)
self.assertTrue(X.GetValue() == "0x00000001", "X has not changed format")
self.assertTrue(Y.GetValue() == "0x00000002", "Y has not changed format")
# Step and check if the values make sense still
self.runCmd("next")
self.assertTrue(X.GetValue() == "0x00000004", "X has not become 4")
self.assertTrue(Y.GetValue() == "0x00000002", "Y has not stuck as hex")
# Check that children can still make their own choices
Y.SetFormat(lldb.eFormatDecimal)
self.assertTrue(X.GetValue() == "0x00000004", "X is still hex")
self.assertTrue(Y.GetValue() == "2", "Y has not been reset")
# Make a few more changes
parent.SetFormat(lldb.eFormatDefault)
X.SetFormat(lldb.eFormatHex)
Y.SetFormat(lldb.eFormatDefault)
self.assertTrue(X.GetValue() == "0x00000004", "X is not hex as it asked")
self.assertTrue(Y.GetValue() == "2", "Y is not defaulted")
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