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# Copyright (C) 92, 93, 94, 95, 1996 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., 675 Mass Ave, Cambridge, MA 02139, USA.

# Please email any bugs, comments, and/or additions to this file to:

# bug-dejagnu@prep.ai.mit.edu

# This file was written by Rob Savoye. (rob@cygnus.com)

#

# Setup an environment so we can execute library procs without DejaGnu

#

#

# Create a default environment and start expect.

#

proc make_defaults_file { defs } {

    global srcdir

    global objdir

    global subdir

    global build_triplet

    global host_triplet

    global target_triplet

    global target_os

    global target_cpu

    # We need to setup default values and a few default procs so we

    # can execute library code without DejaGnu

    set fd [open $defs w]

    puts ${fd} "set tool foobar"

    puts ${fd} "set srcdir ${srcdir}"

    puts ${fd} "set objdir ${objdir}"

    puts ${fd} "set subdir ${subdir}"

    puts ${fd} "set build_triplet ${build_triplet}"

    puts ${fd} "set host_triplet ${host_triplet}"

    puts ${fd} "set target_triplet ${target_triplet}"

    puts ${fd} "set target_os ${target_os}"

    puts ${fd} "set target_cpu ${target_cpu}"

    puts ${fd} "set tool foobar"

    puts ${fd} "set testcnt 0"

    puts ${fd} "set warncnt 0"

    puts ${fd} "set errcnt 0"

    puts ${fd} "set passcnt 0"

    puts ${fd} "set xpasscnt 0"

    puts ${fd} "set failcnt 0"

    puts ${fd} "set xfailcnt 0"

    puts ${fd} "set prms_id 0"

    puts ${fd} "set bug_id 0"

    puts ${fd} "set exit_status 0"

    puts ${fd} "set untestedcnt 0"

    puts ${fd} "set unresolvedcnt 0"

    puts ${fd} "set unsupportedcnt 0"

    puts ${fd} "set xfail_flag 0"

    puts ${fd} "set xfail_prms 0"

    puts ${fd} "set mail_logs 0"

    puts ${fd} "set multipass_name 0"

    catch "close $fd"

}

proc start_expect { } {

    global spawn_id

    global base_dir

    # We need to setup default values and a few default procs so we

    # can execute library code without DejaGnu

    set defaults_file setval.tmp

    make_defaults_file $defaults_file

    set fd [open ${defaults_file} w]

    # look for expect

    if ![info exists EXPECT] {

        set EXPECT [findfile $base_dir/../../expect/expect "$base_dir/../../expect/expect" expect]

        verbose "EXPECT defaulting to $EXPECT" 2

    }

#    catch close

#    catch wait

    # Start expect runing

    spawn "$EXPECT"

    expect {

        -re "expect.*> " {

            verbose "Started the child expect shell" 2

        }

        timeout {

            perror "Timed out starting the child expect shell."

            return -1

        }

    }

    # Load the defaults file

    exp_send "source ${defaults_file}\n"

    expect {

        "expect*> " {

            verbose "Loaded testing defaults file." 2

            return 1

        }

        timeout {

            perror "Couldn't load the testing defaults file."

            return -1

        }

    }

}

#

# Stop the runing expect process

#

proc stop_expect { }  {

    global spawn_id

    # make expect exit

    exp_send "exit\n"

    catch "close -i $spawn_id"

    catch "wait -i $spawn_id"

}

#

# Load the library to test

#

proc load_test_lib { lib } {

    global spawn_id

    exp_send "source ${lib}\n"

    expect {

        "expect*> " {

            verbose "Testing ${lib}" 2

        }

        timeout {

            perror "Couldn't load the libraries to test"

            return -1

        }

    }

}

#

# test a library proc that emits patterns

#

proc exp_test { cmd pattern msg } {

    global spawn_id

    exp_send "puts ACK ; $cmd ; puts NAK\r\n"

    expect {

        "puts ACK*puts NAK" {

            verbose "Got command echo" 3

        }

        timeout {

            warning "Never got command echo"

        }

    }

    expect {

        "ACK" {

            exp_continue

        }

        -re "\r\n1\r\n" {

            warning "$msg, 1 was returned"

            exp_continue

        }

        -re "\r\n0\r\n" {

            warning "$msg, 0 was returned"

            exp_continue

        }

        "$pattern" {

            pass "$msg"

        }

        timeout {

            fail "$msg"

        }

    }

}

# test a config proc that only returns a code

# ex... config_test "isbuild $build_triplet" "pass" "fail" "isbuild, native"

# args are:  command, true condition, false condition, message to print

proc config_test { cmd true false msg } {

    global spawn_id

    set timeout 20

    exp_send "puts ACK ; puts \[$cmd\] ; puts NAK\r\n"

    expect {

        "puts ACK*$cmd*puts NAK" {

            verbose "Got command echo" 3

        }

        timeout {

            warning "Never got command echo"

        }

    }

    expect {

        -re "Checking pattern*with*\[\r\n\]" {

            exp_continue

        }

        -re "\r\n1\r\n" {

            $true "$msg"

        }

        -re "\r\n0\r\n" {

            $false "$msg"

        }

        timeout {

            perror "$msg (timed out)"

        }

    }

}