binutils-gdb/gdb/testsuite/gdb.python/py-pp-registration.exp

# Copyright (C) 2010-2019 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 python pretty
# printer registration.

load_lib gdb-python.exp

standard_testfile

if {[prepare_for_testing "failed to prepare" $testfile $srcfile debug]} {
    return -1
}

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

set remote_python_file [gdb_remote_download host \
			    ${srcdir}/${subdir}/${testfile}.py]

if ![runto_main ] {
    fail "can't run to main"
    return -1
}

proc prepare_test { } {
    global testfile remote_python_file

    # Start with a fresh gdb.
    clean_restart ${testfile}

    set run_to_here [gdb_get_line_number {break to inspect} ${testfile}.c ]
    if ![runto ${testfile}.c:$run_to_here message] {
	return 0
    }

    gdb_test_no_output "source ${remote_python_file}" "read file"

    gdb_test_no_output "py progspace = gdb.current_progspace()"
    gdb_test_no_output "py my_pretty_printer1 = build_pretty_printer1()"
    gdb_test_no_output "py my_pretty_printer2 = build_pretty_printer2()"

    return 1
}

proc test_printers { s_prefix } {
    global hex

    gdb_test "print flt" " = x=<42> y=<43>" \
	"print flt"
    gdb_test "print s" " = ${s_prefix} a=<1> b=<$hex>" \
	"print s"
}

# Test registration with verbose off.

with_test_prefix "verbose off" {
    if ![prepare_test] {
	return -1
    }

    gdb_test_no_output "set verbose off"

    gdb_test_no_output "py gdb.printing.register_pretty_printer(gdb, lookup_function_lookup_test)"
    gdb_test_no_output "py gdb.printing.register_pretty_printer(progspace, my_pretty_printer1)"

    test_printers "s1"
}

# Test registration with verbose on.

with_test_prefix "verbose on" {
    if ![prepare_test] {
	return -1
    }

    gdb_test_no_output "set verbose on"

    gdb_test "py gdb.printing.register_pretty_printer(gdb, lookup_function_lookup_test)" \
	"Registering global lookup_function_lookup_test pretty-printer ..."
    gdb_test "py gdb.printing.register_pretty_printer(progspace, my_pretty_printer1)" \
	"Registering pp-test pretty-printer for .*py-pp-registration ..."

    test_printers "s1"
}

# Exercise the "replace" argument to register_pretty_printer.

with_test_prefix "replace" {
    if ![prepare_test] {
	return -1
    }

    gdb_test_no_output "py gdb.printing.register_pretty_printer(gdb, lookup_function_lookup_test)"
    gdb_test_no_output "py gdb.printing.register_pretty_printer(progspace, my_pretty_printer1)"
    gdb_test "py gdb.printing.register_pretty_printer(progspace, my_pretty_printer2, replace=False)" \
	"RuntimeError: pretty-printer already registered: pp-test\r\nError while executing Python code."

    with_test_prefix "test printers 1" {
	test_printers "s1"
    }

    gdb_test_no_output "py gdb.printing.register_pretty_printer(progspace, my_pretty_printer2, replace=True)"

    with_test_prefix "test printers 2" {
	test_printers "s2"
    }
}