[RFA] testsuite/gdb.base/arithmet.exp: rewrite

[Michael Elizabeth Chastain <chastain at cygnus dot com>]

Here again is a rewrite of gdb.base/arithmet.exp.

I changed all the send_gdb/gdb_expect constructions to single-line
gdb_test calls.  This reduces the file from 375 lines to 133 lines and
makes it more readable.

This version is operationally compatible with the previous version:
it sends the same commands to gdb and receives the same responses,
including all of the variable assignments.  Thus, this version still has
duplicate test names.  I will fix the duplicate test names in the next
phase of patches.

Testing: I tested this on native Red Hat Linux 7 and native Solaris 2.8.

The new file is easier to read than the differential patch, so I'm simply
attaching the new file.

OK to apply?

Michael

===

2001-06-10  Michael Chastain  <chastain@redhat.com>

	* gdb.base/arithmet.exp: Use gdb_test instead of send_gdb/gdb_expect.
	Make all test names unique.

===

# Copyright 1998, 1999, 2001 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 2 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, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  

# Please email any bugs, comments, and/or additions to this file to:
# bug-gdb@prep.ai.mit.edu

# This file was written by Elena Zannoni (ezannoni@cygnus.com)
# Rewritten to use gdb_test by Michael Chastain (chastain@redhat.com)

# This file is part of the gdb testsuite
#
# tests for correctness of arithmetic operators, associativity and precedence
# with integer type variables
# 

if $tracelevel then {
	strace $tracelevel
	}

#
# test running programs
#
set prms_id 0
set bug_id 0

set testfile "int-type"
set srcfile ${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}

if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-w}] != "" } {
     gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
    }

gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}


#
# set it up at a breakpoint so we can play with the variable values
#

if ![runto_main] then {
    perror "couldn't run to breakpoint"
    continue
}

#
# test expressions with "int" types
#

gdb_test "set variable x=14" ""
gdb_test "set variable y=2"  ""
gdb_test "set variable z=2"  ""
gdb_test "set variable w=3"  ""

gdb_test "print x" "14"
gdb_test "print y"  "2"
gdb_test "print z"  "2"
gdb_test "print w"  "3"
 
gdb_test "print x+y" "16"
gdb_test "print x-y" "12"
gdb_test "print x*y" "28"
gdb_test "print x/y"  "7"
gdb_test "print x%y"  "0"

#  x  y  z  w
# 14  2  2  3

# Test associativity of +, -, *, % ,/

gdb_test "print x+y+z" "18"
gdb_test "print x-y-z" "10"
gdb_test "print x*y*z" "56"
gdb_test "print x/y/z"  "3"
gdb_test "print x%y%z"  "0"

# test precedence rules on pairs of arithmetic operators

gdb_test "set variable x=10" ""
gdb_test "set variable y=4"  ""
gdb_test "set variable z=2"  ""

#  x  y  z  w
# 10  4  2  3

gdb_test "print x+y-z" "12"
gdb_test "print x+y*z" "18"

#  x  y  z  w
# 10  4  3  3

gdb_test "set variable z=3"  ""
gdb_test "print x+y%z" "11"
gdb_test "print x+y/z" "11"

#  x  y  z  w
# 10  4  2  3

gdb_test "set variable z=2"  ""
gdb_test "print x-y*z"  "2"
gdb_test "print x-y%z" "10"
gdb_test "print x-y/z"  "8"
gdb_test "print x*y/z" "20"

#  x  y  z  w
# 10  4  3  3

gdb_test "set variable z=3"  ""
gdb_test "print x*y%z"  "1"
gdb_test "print x/y%z"  "2"

# test use of parentheses to enforce different order of evaluation

gdb_test "print x-(y+z)"  "3"
gdb_test "print x/(y*z)"  "0"
gdb_test "print x-(y/z)"  "9"
gdb_test "print (x+y)*z" "42"