1 # Copyright 2006, 2007, 2008, 2009 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" ""
63 set message "if 1 .. else with empty body"
64 gdb_test_multiple "if 1\nelse\nend" $message {
65 -re "$gdb_prompt $" {pass $message}
67 fail "$message (crashed)"
74 gdb_test "if 1\necho true\\n\nelse\necho false\\n\nend" "true" ""
76 # with false condition
77 set message "if 0 .. else with empty body"
78 gdb_test_multiple "if 0\nelse\nend" $message {
79 -re "$gdb_prompt $" {pass $message}
81 fail "$message (crashed)"
87 gdb_test "set confirm off" "" ""
89 # Test that a define with an empty else can be replaced.
90 # If there is memory corruption then free will fail.
92 gdb_test "if 1\necho true\\n\nelse\necho false\\n\nend" "true" ""
94 gdb_test "define abc\nif 1\nelse\nend\nend" "" "create define with empty else"
95 # call (note that condition is 1 so should pass)
96 gdb_test "abc" "" "call original define"
98 set message "replace define with if .. else with empty body"
99 gdb_test_multiple "define abc\necho got here\\n\nend" $message {
100 -re "$gdb_prompt $" {pass $message}
101 eof {fail "$message (crashed)"}
104 gdb_test "abc" "got here" "call replacement define"