gdb/testsuite/gdb.base/history-duplicates.exp

   1 # Copyright 2015-2017 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
  18 # Test the operation of the "history remove-duplicates" option.
  19
  20
  21 # Check that the previous history entry is ENTRY.
  22
  23 proc check_prev_history_entry { entry { test_suffix "" } } {
  24     set test_name "history entry is $entry"
  25     if { $test_suffix != "" } {
  26         append test_name " $test_suffix"
  27     }
  28
  29     # Send ^P followed by ^L.
  30     send_gdb "\x10\x0c"
  31
  32     gdb_expect {
  33         -re $entry {
  34             pass $test_name
  35         }
  36         timeout {
  37             fail $test_name
  38         }
  39     }
  40 }
  41
  42 # Foreach element ELT in THINGS, run the command "print $ELT", making sure that
  43 # each invocation of "print" has a unique test name.
  44
  45 proc run_print_on_each_thing { things } {
  46     set index 0
  47
  48     foreach thing $things {
  49         gdb_test "print $thing" "" "printing $thing (item #$index)"
  50         incr index
  51     }
  52 }
  53
  54 gdb_exit
  55 gdb_start
  56
  57 # These tests require readline support.
  58 if { ![readline_is_used] } {
  59     unsupported "readline isn't used."
  60     return -1
  61 }
  62
  63 # By default the option is set to 0.
  64 gdb_test "show history remove-duplicates" "is 0\\."
  65
  66 # Test the "unlimited" setting.
  67 with_test_prefix "remove-duplicates=unlimited" {
  68     gdb_exit
  69     gdb_start
  70     gdb_test "set history remove-duplicates unlimited"
  71
  72     run_print_on_each_thing { 0 1 2 1 1 2 3 3 4 1 2 3 4 }
  73
  74     check_prev_history_entry "print 4"
  75     check_prev_history_entry "print 3"
  76     check_prev_history_entry "print 2"
  77     check_prev_history_entry "print 1"
  78     check_prev_history_entry "print 0"
  79 }
  80
  81
  82 # Test the "1" setting.
  83 with_test_prefix "remove-duplicates=1" {
  84     gdb_exit
  85     gdb_start
  86     gdb_test "set history remove-duplicates 1"
  87
  88     run_print_on_each_thing { 0 1 0 2 2 1 }
  89
  90     check_prev_history_entry "print 1"
  91     check_prev_history_entry "print 2"
  92     check_prev_history_entry "print 0"
  93     check_prev_history_entry "print 1" "(again)"
  94     check_prev_history_entry "print 0" "(again)"
  95 }
  96
  97
  98 # Test the "0" setting.
  99 with_test_prefix "remove-duplicates=0" {
 100     gdb_exit
 101     gdb_start
 102     gdb_test "set history remove-duplicates 0"
 103
 104     run_print_on_each_thing { 0 0 1 1 }
 105
 106     check_prev_history_entry "print 1"
 107     check_prev_history_entry "print 1" "(again)"
 108     check_prev_history_entry "print 0"
 109     check_prev_history_entry "print 0" "(again)"
 110 }
 111
 112
 113 # Test the "2" setting.
 114 with_test_prefix "remove-duplicates=2" {
 115     gdb_exit
 116     gdb_start
 117     gdb_test "set history remove-duplicates 2"
 118
 119     run_print_on_each_thing { 1 2 0 2 0 }
 120
 121     check_prev_history_entry "print 0"
 122     check_prev_history_entry "print 2"
 123     check_prev_history_entry "print 1"
 124 }