1# Copyright 2017-2020 Free Software Foundation, Inc.
2
3# This program is free software; you can redistribute it and/or modify
4# it under the terms of the GNU General Public License as published by
5# the Free Software Foundation; either version 3 of the License, or
6# (at your option) any later version.
7#
8# This program is distributed in the hope that it will be useful,
9# but WITHOUT ANY WARRANTY; without even the implied warranty of
10# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11# GNU General Public License for more details.
12#
13# You should have received a copy of the GNU General Public License
14# along with this program.  If not, see <http://www.gnu.org/licenses/>.
15
16# This file is part of the gdb testsuite.
17
18load_lib completion-support.exp
19
20gdb_exit
21gdb_start
22
23# Tests below are about tab-completion, which doesn't work if readline
24# library isn't used.  Check it first.
25
26if { ![readline_is_used] } {
27    untested "no tab completion support without readline"
28    return -1
29}
30
31# Start of tests.
32
33# Test TAB with no input.
34proc_with_prefix empty-input-line {} {
35    # Set max-completions to 1 to avoid having to hardcode a set of
36    # command names.
37    gdb_test_no_output "set max-completions 1"
38
39    # Given the completion limit, this completes to the command with
40    # the lowest alphanumeric sort, which is, and is likely to remain,
41    # "!".
42    test_gdb_complete_unique "" "!" " " 1
43
44    # Same, but with some leading whitespace.
45    test_gdb_complete_unique "   " "   !" " " 1
46}
47
48proc test_driver {} {
49    empty-input-line
50}
51
52test_driver
53