# Copyright 2024 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/>.

# Test the 'edit' command.

# This relies on setting environment variables, so best to run on
# non-remote hosts.
require {!is_remote host}

standard_testfile

if {[prepare_for_testing "failed to prepare" $testfile $srcfile]} {
    return
}

# Check that 'echo' is available in the shell.
gdb_test_multiple "shell echo test 1234 xyz" "check echo is available" {
    -re -wrap "^test 1234 xyz" {
    }

    -re -wrap "" {
	unsupported "shell cannot use echo command"
	return
    }
}

if {![runto_main]} {
    return
}

# Are we using DWARF debug format?
get_debug_format
set non_dwarf [expr ! [test_debug_format "DWARF \[0-9\]"]]

# Find line numbers for use in tests.
set line_0 [gdb_get_line_number "prologue location"]
set line_1 [gdb_get_line_number "first location"]
set line_2 [gdb_get_line_number "second location"]
set line_3 [gdb_get_line_number "third location"]
set line_4 [gdb_get_line_number "fourth location"]

# Regexp to match SRCFILE.
set srcfile_re [string_to_regexp [file normalize $srcdir/$subdir]/$srcfile]
set srcfile_re_simple "\[^\r\n\]+/[string_to_regexp $srcfile]"

# Setup the EDITOR environment variable to run our helper script, and
# then run the tests.

save_vars { env(EDITOR) } {
    set env(EDITOR) "echo"

    # Start with no test binary loaded.
    clean_restart
    gdb_test "edit" \
	"^No symbol table is loaded.  Use the \"file\" command\\." \
	"try edit when no symbol file is loaded"

    # Now start with a test binary.
    clean_restart $binfile

    with_test_prefix "before starting inferior" {

	# We should be able to find the default location (of main)
	# even for non-dwarf debug formats, but this currently fails
	# with the stabs board.
	if { $non_dwarf } { setup_xfail *-*-* }
	# Additionally, some targets will report the default location
	# as the opening brace of main, while others report the first
	# line of code inside main.  For this test either will do.
	gdb_test "edit" \
	    "\r\n\\+(?:$line_0|$line_1) $srcfile_re" \
	    "check edit of default location"

	gdb_test "list $line_4" \
	    "\r\n$line_4\\s+\[^\r\n\]+/\\* fourth location \\*/\r\n.*" \
	    "list lines around the fourth location"

	gdb_test "edit" \
	    "\r\n\\+$line_4 $srcfile_re" \
	    "check edit of fourth location after listing"

	gdb_test "edit $line_2" \
	    "\r\n\\+$line_2 $srcfile_re" \
	    "check edit of second location"

	gdb_test "edit xxx" \
	    "^Function \"xxx\" not defined\\." \
	    "try to edit an unknown function"
    }

    if {![runto_main]} {
	return
    }

    set first_loc_pc [get_hexadecimal_valueof "\$pc" "*UNKNOWN*" \
			  "get \$pc at first location"]

    with_test_prefix "stopped at first location" {
	gdb_test "edit" \
	    "\r\n\\+$line_1 $srcfile_re" \
	    "check edit of current location"
    }

    gdb_breakpoint $line_2
    gdb_continue_to_breakpoint "stop at second location"

    with_test_prefix "at second location" {
	gdb_test "edit" \
	    "\r\n\\+$line_2 $srcfile_re" \
	    "check edit current location results"

	gdb_test "edit $line_3" \
	    "\r\n\\+$line_3 $srcfile_re" \
	    "check edit third location results"
    }

    with_test_prefix "list first location" {
	gdb_test "list $line_1" \
	    "\r\n$line_1\\s+\[^\r\n\]+/\\* first location \\*/\r\n.*" \
	    "list lines around the first location"

	gdb_test "edit" \
	    "\r\n\\+$line_1 $srcfile_re" \
	    "check edit current location results"
    }

    gdb_breakpoint $line_4
    gdb_continue_to_breakpoint "stop at fourth location"

    with_test_prefix "at fourth location" {
	gdb_test "edit" \
	    "\r\n\\+$line_4 $srcfile_re" \
	    "check edit current location results"

	gdb_test "edit $line_1" \
	    "\r\n\\+$line_1 $srcfile_re" \
	    "check edit first location results"

	gdb_test "edit *$first_loc_pc" \
	    [multi_line \
		 "[string_to_regexp $first_loc_pc] is in main \\($srcfile_re_simple:$line_1\\)\\." \
		 "\\+$line_1 $srcfile_re"] \
	    "check edit first location by address results"
    }
}