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76 lines
2.5 KiB
Plaintext
76 lines
2.5 KiB
Plaintext
# Copyright 2015-2018 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# This file is part of the gdb testsuite.
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# Test the setting of "history size" via the GDBHISTSIZE environment variable
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# We cannot expect remote hosts to see environment variables set on the
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# local machine.
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if { [is_remote host] } {
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unsupported "can't set environment variables on remote host"
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return -1
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}
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# Check that the history size is properly set to SIZE when the environment
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# variable ENV_VAR is set to GDBHISTSIZE.
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proc test_histsize_history_setting { histsize size { env_var "GDBHISTSIZE" } } {
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global env
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save_vars { env(GDBHISTFILE) env(GDBHISTSIZE) env($env_var) } {
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# These environment variables take precedence over whatever
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# history size is set in .gdbinit. Make sure the former is not
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# set.
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unset -nocomplain env(GDBHISTFILE)
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unset -nocomplain env(GDBHISTSIZE)
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set env($env_var) $histsize
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with_test_prefix "histsize=$histsize" {
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gdb_exit
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gdb_start
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gdb_test "show history size" "The size of the command history is $size."
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if { $size == "0" } {
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gdb_test_no_output "show commands"
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} elseif { $size != "1" } {
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gdb_test "show commands" \
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" . show history size\r\n . show commands"
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}
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}
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}
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}
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test_histsize_history_setting "" "unlimited"
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test_histsize_history_setting "0" "0"
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test_histsize_history_setting "20" "20"
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test_histsize_history_setting " 20 " "20"
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test_histsize_history_setting "-5" "unlimited"
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# Test defaulting to 256 upon encountering a non-numeric GDBHISTSIZE.
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test_histsize_history_setting "not_an_integer" "256"
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test_histsize_history_setting "10zab" "256"
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test_histsize_history_setting "-5ab" "256"
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# A huge number (hopefully larger than INT_MAX)
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test_histsize_history_setting "99999999999999999999999999999999999" "unlimited"
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# We no longer read HISTSIZE
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test_histsize_history_setting "50" "256" "HISTSIZE"
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