1 # Copyright 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
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.
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.
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/>.
16 # This test checks that the if .. else .. end construct works and may
17 # contain empty bodies without crashing.
26 # First test that the if command works with an empty body
27 # Test with different conditions because the body is ignored
28 # if it is not executed.
31 set message "if 1 with empty body"
32 gdb_test_multiple "if 1\nend" $message {
33 -re "$gdb_prompt $" {pass $message}
35 fail "$message (crashed)"
41 # with false condition
42 set message "if 0 with empty body"
43 gdb_test_multiple "if 0\nend" $message {
44 -re "$gdb_prompt $" {pass $message}
46 fail "$message (crashed)"
52 # Second, do the same tests with an empty else body.
53 # This fails in GDB <=6.5
55 # Unfortunately it was an uninitialised memory problem so
56 # sometimes it just works. Preceed it with an if else end with
57 # bodies and hopefully the memory with be dirty and the problem
58 # will show itself (this works at time of writing).
60 gdb_test "if 1\necho true\\n\nelse\necho false\\n\nend" "true" \
61 "if true else false #1"
64 set message "if 1 .. else with empty body"
65 gdb_test_multiple "if 1\nelse\nend" $message {
66 -re "$gdb_prompt $" {pass $message}
68 fail "$message (crashed)"
75 gdb_test "if 1\necho true\\n\nelse\necho false\\n\nend" "true" \
76 "if true else false #2"
78 # with false condition
79 set message "if 0 .. else with empty body"
80 gdb_test_multiple "if 0\nelse\nend" $message {
81 -re "$gdb_prompt $" {pass $message}
83 fail "$message (crashed)"
89 gdb_test_no_output "set confirm off" ""
91 # Test that a define with an empty else can be replaced.
92 # If there is memory corruption then free will fail.
94 gdb_test "if 1\necho true\\n\nelse\necho false\\n\nend" "true" \
95 "if true else false #3"
97 gdb_test "define abc\nif 1\nelse\nend\nend" "" "create define with empty else"
98 # call (note that condition is 1 so should pass)
99 gdb_test_no_output "abc" "call original define"
101 set message "replace define with if .. else with empty body"
102 gdb_test_multiple "define abc\necho got here\\n\nend" $message {
103 -re "$gdb_prompt $" {pass $message}
104 eof {fail "$message (crashed)"}
107 gdb_test "abc" "got here" "call replacement define"