# Copyright 2002-2018 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 <http://www.gnu.org/licenses/>.

# This file was written by Andrew Cagney (cagney at redhat dot com),
# derived from xfullpath.exp (written by Joel Brobecker), derived from
# selftest.exp (written by Rob Savoye).

load_lib selftest-support.exp

if [target_info exists gdb,noinferiorio] {
    verbose "Skipping because of no inferiorio capabilities."
    return
}

# Similar to gdb_test_stdio, except no \r\n is expected before
# $gdb_prompt in the $gdb_spawn_id.

proc test_complaint {test inferior_io_re msg} {
    global inferior_spawn_id gdb_spawn_id
    global gdb_prompt

    set inferior_matched 0
    set gdb_matched 0

    gdb_test_multiple $test $msg {
	-i $inferior_spawn_id -re "$inferior_io_re" {
	    set inferior_matched 1
	    if {!$gdb_matched} {
		exp_continue
	    }
	}
	-i $gdb_spawn_id -re "$gdb_prompt $" {
	    set gdb_matched 1
	    if {!$inferior_matched} {
		exp_continue
	    }
	}
    }

    verbose -log "inferior_matched=$inferior_matched, gdb_matched=$gdb_matched"
    gdb_assert {$inferior_matched && $gdb_matched} $msg
}

proc test_initial_complaints { } {
    # Unsupress complaints
    gdb_test "set stop_whining = 2"

    gdb_test_no_output "set var \$cstr = \"Register a complaint\""

    # Prime the system
    gdb_test_stdio \
	"call complaint_internal (\$cstr)" \
	"During symbol reading: Register a complaint"

    # Re-issue the first message #1
    gdb_test_stdio \
	"call complaint_internal (\$cstr)" \
	"During symbol reading: Register a complaint"

    # Add a second complaint, expect it
    gdb_test_stdio \
	"call complaint_internal (\"Testing! Testing! Testing!\")" \
	"During symbol reading: Testing. Testing. Testing."

    return 0
}

# Check that nothing comes out when there haven't been any real
# complaints.  Note that each test is really checking the previous
# command.

proc test_empty_complaint { cmd msg } {
    global gdb_prompt
    global inferior_spawn_id gdb_spawn_id

    if {$gdb_spawn_id == $inferior_spawn_id} {
	gdb_test_no_output $cmd $msg
    } else {
	set seen_output 0
	gdb_test_multiple $cmd $msg {
	    -i $inferior_spawn_id -re "." {
		set seen_output 1
		exp_continue
	    }
	    -i $gdb_spawn_id "$gdb_prompt $" {
		gdb_assert !$seen_output $msg
	    }
	}
    }
}

proc test_empty_complaints { } {

    test_empty_complaint "call clear_complaints()" \
	    "clear complaints"

    return 0
}

do_self_tests captured_command_loop {
    test_initial_complaints
    test_empty_complaints
}