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# Copyright 2006, 2007, 2008 Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 3 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program.  If not, see .

# This test checks that the if .. else .. end construct works and may

# contain empty bodies without crashing.

if $tracelevel then {

    strace $tracelevel

}

gdb_exit

gdb_start

# First test that the if command works with an empty body

# Test with different conditions because the body is ignored

# if it is not executed.

#    with true condition

set message "if 1 with empty body"

gdb_test_multiple "if 1\nend" $message {

    -re "$gdb_prompt $" {pass $message}

    eof {

        fail "$message (crashed)"

        gdb_exit

        gdb_start

    }

}

#    with false condition

set message "if 0 with empty body"

gdb_test_multiple "if 0\nend" $message {

    -re "$gdb_prompt $" {pass $message}

    eof {

        fail "$message (crashed)"

        gdb_exit

        gdb_start

    }

}

# Second, do the same tests with an empty else body.

# This fails in GDB <=6.5

# Unfortunately it was an uninitialised memory problem so

# sometimes it just works. Preceed it with an if else end with

# bodies and hopefully the memory with be dirty and the problem

# will show itself (this works at time of writing).

gdb_test "if 1\necho true\\n\nelse\necho false\\n\nend" "true" ""

#    with true condition

set message "if 1 .. else with empty body"

gdb_test_multiple "if 1\nelse\nend" $message {

    -re "$gdb_prompt $" {pass $message}

    eof {

        fail "$message (crashed)"

        gdb_exit

        gdb_start

    }

}

# dirty memory

gdb_test "if 1\necho true\\n\nelse\necho false\\n\nend" "true" ""

#    with false condition

set message "if 0 .. else with empty body"

gdb_test_multiple "if 0\nelse\nend" $message {

    -re "$gdb_prompt $" {pass $message}

    eof {

        fail "$message (crashed)"

        gdb_exit

        gdb_start

    }

}

gdb_test "set confirm off" "" ""

# Test that a define with an empty else can be replaced.

# If there is memory corruption then free will fail.

# dirty memory

gdb_test "if 1\necho true\\n\nelse\necho false\\n\nend" "true" ""

# create

gdb_test "define abc\nif 1\nelse\nend\nend" "" "create define with empty else"

# call (note that condition is 1 so should pass)

gdb_test "abc" "" "call original define"

# replace

set message "replace define with if .. else with empty body"

gdb_test_multiple "define abc\necho got here\\n\nend" $message {

    -re "$gdb_prompt $" {pass $message}

    eof {fail "$message (crashed)"}

}

# call

gdb_test "abc" "got here" "call replacement define"