gdb/testsuite/gdb.python/py-lazy-string.exp

# Copyright (C) 2015-2016 Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

# This file is part of the GDB testsuite.  It tests lazy string support
# not tested by py-prettyprinter.exp.

load_lib gdb-python.exp

standard_testfile

if {[prepare_for_testing $testfile.exp $testfile $srcfile {debug c++}]} {
    return -1
}

# Skip all tests if Python scripting is not enabled.
if { [skip_python_tests] } { continue }

if ![runto_main ] {
    return -1
}

gdb_breakpoint [gdb_get_line_number "break here"]
gdb_continue_to_breakpoint "break here"

gdb_test_no_output "python null = gdb.parse_and_eval(\"null\")"

gdb_test "python print(null.lazy_string(length=0).value())" \
    "gdb.MemoryError: Cannot create a value from NULL.*Error while executing Python code."
gdb_test "python print(null.lazy_string(length=3).value())" \
    "gdb.MemoryError: Cannot create a lazy string with address 0x0, and a non-zero length.*Error while executing Python code."