gdb/testsuite/gdb.guile/scm-parameter.exp

# Copyright (C) 2010-2021 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 is part of the GDB testsuite.
# It tests GDB parameter support in Guile.

load_lib gdb-guile.exp

# Start with a fresh gdb.
gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir

# Skip all tests if Guile scripting is not enabled.
if { [skip_guile_tests] } { continue }

gdb_install_guile_utils
gdb_install_guile_module

# We use "." here instead of ":" so that this works on win32 too.
set escaped_directory [string_to_regexp "$srcdir/$subdir"]
gdb_test "guile (print (parameter-value \"directories\"))" "$escaped_directory.\\\$cdir.\\\$cwd"

# Test a simple boolean parameter, and parameter? while we're at it.

gdb_test_multiline "Simple gdb boolean parameter" \
    "guile" "" \
    "(define test-param" "" \
    "  (make-parameter \"print test-param\"" "" \
    "   #:command-class COMMAND_DATA" "" \
    "   #:parameter-type PARAM_BOOLEAN" "" \
    "   #:doc \"When enabled, test param does something useful. When disabled, does nothing.\"" "" \
    "   #:set-doc \"Set the state of the boolean test-param.\"" "" \
    "   #:show-doc \"Show the state of the boolean test-param.\"" "" \
    "   #:show-func (lambda (self value)" ""\
    "      (format #f \"The state of the Test Parameter is ~a.\" value))" "" \
    "   #:initial-value #t))" "" \
    "(register-parameter! test-param)" "" \
    "end"

with_test_prefix "test-param" {
    gdb_test "guile (print (parameter-value test-param))" "= #t" "parameter value (true)"
    gdb_test "show print test-param" "The state of the Test Parameter is on." "show parameter on"
    gdb_test_no_output "set print test-param off"
    gdb_test "show print test-param" "The state of the Test Parameter is off." "show parameter off"
    gdb_test "guile (print (parameter-value test-param))" "= #f" "parameter value (false)"
    gdb_test "help show print test-param" "Show the state of the boolean test-param.*" "show help"
    gdb_test "help set print test-param" "Set the state of the boolean test-param.*" "set help"
    gdb_test "help set print" "set print test-param -- Set the state of the boolean test-param.*" "general help"

    gdb_test "guile (print (parameter? test-param))" "= #t"
    gdb_test "guile (print (parameter? 42))" "= #f"
}

# Test an enum parameter.

gdb_test_multiline "enum gdb parameter" \
    "guile" "" \
    "(define test-enum-param" "" \
    "  (make-parameter \"print test-enum-param\"" "" \
    "   #:command-class COMMAND_DATA" "" \
    "   #:parameter-type PARAM_ENUM" "" \
    "   #:enum-list '(\"one\" \"two\")" "" \
    "   #:doc \"When set, test param does something useful. When disabled, does nothing.\"" "" \
    "   #:show-doc \"Show the state of the enum.\"" "" \
    "   #:set-doc \"Set the state of the enum.\"" "" \
    "   #:show-func (lambda (self value)" "" \
    "      (format #f \"The state of the enum is ~a.\" value))" "" \
    "   #:initial-value \"one\"))" "" \
    "(register-parameter! test-enum-param)" "" \
    "end"

with_test_prefix "test-enum-param" {
    gdb_test "guile (print (parameter-value test-enum-param))" "one" "enum parameter value (one)"
    gdb_test "show print test-enum-param" "The state of the enum is one." "show initial value"
    gdb_test_no_output "set print test-enum-param two"
    gdb_test "show print test-enum-param" "The state of the enum is two." "show new value"
    gdb_test "guile (print (parameter-value test-enum-param))" "two" "enum parameter value (two)"
    gdb_test "set print test-enum-param three" "Undefined item: \"three\".*" "set invalid enum parameter" 
}

# Test a file parameter.

gdb_test_multiline "file gdb parameter" \
    "guile" "" \
    "(define test-file-param" "" \
    "  (make-parameter \"test-file-param\"" "" \
    "   #:command-class COMMAND_FILES" "" \
    "   #:parameter-type PARAM_FILENAME" "" \
    "   #:doc \"When set, test param does something useful. When disabled, does nothing.\"" "" \
    "   #:show-doc \"Show the name of the file.\"" "" \
    "   #:set-doc \"Set the name of the file.\"" "" \
    "   #:show-func (lambda (self value)" "" \
    "      (format #f \"The name of the file is ~a.\" value))" "" \
    "   #:initial-value \"foo.txt\"))" "" \
    "(register-parameter! test-file-param)" "" \
    "end"

with_test_prefix "test-file-param" {
    gdb_test "guile (print (parameter-value test-file-param))" "foo.txt" "initial parameter value"
    gdb_test "show test-file-param" "The name of the file is foo.txt." "show initial value"
    gdb_test_no_output "set test-file-param bar.txt"
    gdb_test "show test-file-param" "The name of the file is bar.txt." "show new value"
    gdb_test "guile (print (parameter-value test-file-param))" "bar.txt" " new parameter value"
    gdb_test "set test-file-param" "Argument required.*" 
}

# Test a parameter that is not documented.

gdb_test_multiline "undocumented gdb parameter" \
    "guile" "" \
    "(register-parameter! (make-parameter \"print test-undoc-param\"" "" \
    "   #:command-class COMMAND_DATA" "" \
    "   #:parameter-type PARAM_BOOLEAN" "" \
    "   #:show-func (lambda (self value)" "" \
    "      (format #f \"The state of the Test Parameter is ~a.\" value))" "" \
    "   #:initial-value #t))" "" \
    "end"

with_test_prefix "test-undocumented-param" {
    gdb_test "show print test-undoc-param" "The state of the Test Parameter is on." "show parameter on"
    gdb_test_no_output "set print test-undoc-param off"
    gdb_test "show print test-undoc-param" "The state of the Test Parameter is off." "show parameter off"
    gdb_test "help show print test-undoc-param" "This command is not documented." "show help"
    gdb_test "help set print test-undoc-param" "This command is not documented." "set help"
    gdb_test "help set print" "set print test-undoc-param -- This command is not documented.*" "general help"
}

# Test a parameter with a restricted range, where we need to notify the user
# and restore the previous value.

gdb_test_multiline "restricted gdb parameter" \
    "guile" "" \
    "(register-parameter! (make-parameter \"test-restricted-param\"" "" \
    "   #:command-class COMMAND_DATA" "" \
    "   #:parameter-type PARAM_ZINTEGER" "" \
    "   #:set-func (lambda (self)" "" \
    "      (let ((value (parameter-value self)))" "" \
    "        (if (and (>= value 0) (<= value 10))" "" \
    "            \"\"" "" \
    "            (begin" "" \
    "              (set-parameter-value! self (object-property self 'value))" "" \
    "              \"Error: Range of parameter is 0-10.\"))))" "" \
    "   #:show-func (lambda (self value)" "" \
    "      (format #f \"The value of the restricted parameter is ~a.\" value))" "" \
    "   #:initial-value (lambda (self)" "" \
    "      (set-object-property! self 'value 2)" "" \
    "      2)))" "" \
    "end"

with_test_prefix "test-restricted-param" {
    gdb_test "show test-restricted-param" "The value of the restricted parameter is 2." \
	"test-restricted-param is initially 2"
    gdb_test_no_output "set test-restricted-param 10"
    gdb_test "show test-restricted-param" "The value of the restricted parameter is 10." \
	"test-restricted-param is now 10"
    gdb_test "set test-restricted-param 42" "Error: Range of parameter is 0-10."
    gdb_test "show test-restricted-param" "The value of the restricted parameter is 2." \
	"test-restricted-param is back to 2 again"
}

# Test registering a parameter that already exists.

gdb_test "guile (register-parameter! (make-parameter \"height\"))" \
    "ERROR.*is already defined.*" "error registering existing parameter"

# Test printing and setting the value of an unregistered parameter.
gdb_test "guile (print (parameter-value (make-parameter \"foo\")))" \
    "= #f"
gdb_test "guile (define myparam (make-parameter \"foo\"))"
gdb_test_no_output "guile (set-parameter-value! myparam #t)"
gdb_test "guile (print (parameter-value myparam))" \
    "= #t"

# Test registering a parameter named with what was an ambiguous spelling
# of existing parameters.

gdb_test_multiline "previously ambiguously named boolean parameter" \
    "guile" "" \
    "(define prev-ambig" "" \
    "  (make-parameter \"print s\"" "" \
    "   #:parameter-type PARAM_BOOLEAN))" "" \
    "end"

gdb_test_no_output "guile (register-parameter! prev-ambig)"

with_test_prefix "previously-ambiguous" {
    gdb_test "guile (print (parameter-value prev-ambig))" "= #f" "parameter value (false)"
    gdb_test "show print s" "Command is not documented is off." "show parameter off"
    gdb_test_no_output "set print s on"
    gdb_test "show print s" "Command is not documented is on." "show parameter on"
    gdb_test "guile (print (parameter-value prev-ambig))" "= #t" "parameter value (true)"
    gdb_test "help show print s" "This command is not documented." "show help"
    gdb_test "help set print s" "This command is not documented." "set help"
    gdb_test "help set print" "set print s -- This command is not documented.*" "general help"
}