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"""
Test lldb data formatter subsystem.
"""
from __future__ import print_function
import os
import time
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class LibcxxVectorDataFormatterTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
def check_numbers(self, var_name):
self.expect("frame variable " + var_name,
substrs=[var_name + ' = size=7',
'[0] = 1',
'[1] = 12',
'[2] = 123',
'[3] = 1234',
'[4] = 12345',
'[5] = 123456',
'[6] = 1234567',
'}'])
self.expect("p " + var_name,
substrs=['$', 'size=7',
'[0] = 1',
'[1] = 12',
'[2] = 123',
'[3] = 1234',
'[4] = 12345',
'[5] = 123456',
'[6] = 1234567',
'}'])
# check access-by-index
self.expect("frame variable " + var_name + "[0]",
substrs=['1'])
self.expect("frame variable " + var_name + "[1]",
substrs=['12'])
self.expect("frame variable " + var_name + "[2]",
substrs=['123'])
self.expect("frame variable " + var_name + "[3]",
substrs=['1234'])
@add_test_categories(["libc++"])
@skipIf(debug_info="gmodules",
bugnumber="https://bugs.llvm.org/show_bug.cgi?id=36048")
def test_with_run_command(self):
"""Test that that file and class static variables display correctly."""
self.build()
(self.target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(
self, "break here", lldb.SBFileSpec("main.cpp", False))
# This is the function to remove the custom formats in order to have a
# clean slate for the next test case.
def cleanup():
self.runCmd('type format clear', check=False)
self.runCmd('type summary clear', check=False)
self.runCmd('type filter clear', check=False)
self.runCmd('type synth clear', check=False)
self.runCmd(
"settings set target.max-children-count 256",
check=False)
# Execute the cleanup function during test case tear down.
self.addTearDownHook(cleanup)
# empty vectors (and storage pointers SHOULD BOTH BE NULL..)
self.expect("frame variable numbers",
substrs=['numbers = size=0'])
lldbutil.continue_to_breakpoint(process, bkpt)
# first value added
self.expect("frame variable numbers",
substrs=['numbers = size=1',
'[0] = 1',
'}'])
# add some more data
lldbutil.continue_to_breakpoint(process, bkpt)
self.expect("frame variable numbers",
substrs=['numbers = size=4',
'[0] = 1',
'[1] = 12',
'[2] = 123',
'[3] = 1234',
'}'])
self.expect("p numbers",
substrs=['$', 'size=4',
'[0] = 1',
'[1] = 12',
'[2] = 123',
'[3] = 1234',
'}'])
# check access to synthetic children
self.runCmd(
"type summary add --summary-string \"item 0 is ${var[0]}\" std::int_vect int_vect")
self.expect('frame variable numbers',
substrs=['item 0 is 1'])
self.runCmd(
"type summary add --summary-string \"item 0 is ${svar[0]}\" std::int_vect int_vect")
self.expect('frame variable numbers',
substrs=['item 0 is 1'])
# move on with synths
self.runCmd("type summary delete std::int_vect")
self.runCmd("type summary delete int_vect")
# add some more data
lldbutil.continue_to_breakpoint(process, bkpt)
self.check_numbers("numbers")
# clear out the vector and see that we do the right thing once again
lldbutil.continue_to_breakpoint(process, bkpt)
self.expect("frame variable numbers",
substrs=['numbers = size=0'])
lldbutil.continue_to_breakpoint(process, bkpt)
# first value added
self.expect("frame variable numbers",
substrs=['numbers = size=1',
'[0] = 7',
'}'])
# check if we can display strings
self.expect("frame variable strings",
substrs=['goofy',
'is',
'smart'])
self.expect("p strings",
substrs=['goofy',
'is',
'smart'])
# test summaries based on synthetic children
self.runCmd(
"type summary add std::string_vect string_vect --summary-string \"vector has ${svar%#} items\" -e")
self.expect("frame variable strings",
substrs=['vector has 3 items',
'goofy',
'is',
'smart'])
self.expect("p strings",
substrs=['vector has 3 items',
'goofy',
'is',
'smart'])
lldbutil.continue_to_breakpoint(process, bkpt)
self.expect("frame variable strings",
substrs=['vector has 4 items'])
# check access-by-index
self.expect("frame variable strings[0]",
substrs=['goofy'])
self.expect("frame variable strings[1]",
substrs=['is'])
lldbutil.continue_to_breakpoint(process, bkpt)
self.expect("frame variable strings",
substrs=['vector has 0 items'])
@add_test_categories(["libc++"])
@skipIf(debug_info="gmodules",
bugnumber="https://bugs.llvm.org/show_bug.cgi?id=36048")
def test_ref_and_ptr(self):
"""Test that that file and class static variables display correctly."""
self.build()
(self.target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(
self, "Stop here to check by ref", lldb.SBFileSpec("main.cpp", False))
# The reference should display the same was as the value did
self.check_numbers("ref")
# The pointer should just show the right number of elements:
self.expect("frame variable ptr", substrs=['ptr =', ' size=7'])
self.expect("p ptr", substrs=['$', 'size=7'])
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