Files
binutils-gdb/gdb/testsuite/gdb.python/py-parameter.exp
Andrew Burgess 4b68d4ac98 gdb/python: allow empty gdb.Parameter.__doc__ string
I was recently attempting to create some parameters via the Python
API.  I wanted these parameters to appear similar to how GDB handles
the existing 'style' parameters.

Specifically, I was interested in this behaviour:

  (gdb) help show style filename foreground
  Show the foreground color for this property.
  (gdb) help set style filename foreground
  Set the foreground color for this property.
  (gdb)

Notice how each 'help' command only gets a single line of output.

I tried to reproduce this behaviour via the Python API and was unable.

The problem is that, in order to get just a single line of output like
this, the style parameters are registered with a call to
add_setshow_color_cmd with the 'help_doc' being passed as nullptr.

On the Python side, when parameters are created, the 'help_doc' is
obtained with a call to get_doc_string (python/py-param.c).  This
function either returns the __doc__ string, or a default string: "This
command is not documented.".

To avoid returning the default we could try setting __doc__ to an
empty string, but setting this field to any string means that GDB
prints a line for that string, like this:

  class test_param(gdb.Parameter):
     __doc__ = ""
     def __init__(self, name):
        super ().__init__(name, gdb.COMMAND_NONE, gdb.PARAM_BOOLEAN)
        self.value = True

  test_param('print test')

Then in GDB:

  (gdb) help set print test
  Set the current value of 'print test'.

  (gdb)

The blank line is the problem I'd like to solve.

This commit makes a couple of changes to how parameter doc strings are
handled.

If the doc string is set to an empty string, then GDB now converts
this to nullptr, which removes the blank line problem, the new
behaviour in GDB (for the above `test_param`) is:

  (gdb) help set print test
  Set the current value of 'print test'.
  (gdb)

Next, I noticed that if the set/show docs are set to empty strings,
then the results are less than ideal:

  class test_param(gdb.Parameter):
     set_doc = ""
     def __init__(self, name):
        super ().__init__(name, gdb.COMMAND_NONE, gdb.PARAM_BOOLEAN)
        self.value = True

  test_param('print test')

And in GDB:

  (gdb) help set print test

  This command is not documented.
  (gdb)

So, if the set/show docs are the empty string, GDB now forces these to
be the default string instead, the new behaviour in GDB is:

  (gdb) help set print test
  Set the current value of 'print test'.
  This command is not documented.
  (gdb)

I've added some additional asserts; the set/show docs should always be
non-empty strings, which I believe is the case after this commit.  And
the 'doc' string returned from get_doc_string should never nullptr,
but could be empty.

There are new tests to cover all these changes.
2025-05-13 14:33:20 +01:00

815 lines
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# Copyright (C) 2010-2025 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 and gdb.Parameter.
load_lib gdb-python.exp
require allow_python_tests
# Start with a fresh gdb.
clean_restart
proc py_param_test_maybe_no_output { command pattern args } {
if [string length $pattern] {
gdb_test $command $pattern $args
} else {
gdb_test_no_output $command $args
}
}
proc_with_prefix test_directories { } {
# We use "." here instead of ":" so that this works on win32 too.
if { [is_remote host] } {
# Don't match $srcdir/$subdir because proc gdb_reinitialize_dir
# doesn't set search directories on remote host.
set directories ".*\\\$cdir.\\\$cwd"
} else {
set escaped_directory [string_to_regexp "$::srcdir/$::subdir"]
set directories "$escaped_directory.\\\$cdir.\\\$cwd"
}
gdb_test "python print (gdb.parameter ('directories'))" $directories
}
proc_with_prefix test_data_directory { } {
clean_restart
# Check we can correctly read the data-directory parameter. First,
# grab the value as read directly from the GDB CLI.
set dd ""
gdb_test_multiple "show data-directory" \
"find the initial data-directory value" {
-re -wrap "GDB's data directory is \"(\[^\r\n\]+)\"\\." {
set dd $expect_out(1,string)
pass $gdb_test_name
}
}
# Now print the data-directory from Python.
gdb_test "python print (gdb.parameter ('data-directory'))" $dd
# Next change the data-directory to a relative path. Internally GDB
# will resolve this to an absolute path, which Python should then see.
#
# GDB is currently running in '...../build/gdb/testsuite/' and the
# test output is being written to:
# ...../build/gdb/testsuite/outputs/gdb.python/py-parameter/
#
# So create the relative path './outputs/gdb.python/py-parameter/' and
# set the data-directory to that, we should then see the absolute path.
set abs_path_to_output_dir [standard_output_file ""]
set abs_path_to_cwd $::objdir
set rel_path_to_output_dir \
[file join "." [string replace ${abs_path_to_output_dir} 0 \
[string length ${abs_path_to_cwd}] ""]]
gdb_test_no_output "set data-directory ${rel_path_to_output_dir}" \
"set data-directory to relative path"
gdb_test "python print (gdb.parameter ('data-directory'))" \
${abs_path_to_output_dir} \
"python sees absolute version of data-directory path"
# While we're here, check we see the correct path at GDB's CLI.
gdb_test "show data-directory" \
"GDB's data directory is \"${abs_path_to_output_dir}\"\\." \
"check modified data-directory at the CLI"
# Now lets set the data-directory back to what it was initially.
gdb_test_no_output "set data-directory ${dd}" \
"set data-directory back to its original value"
# And check we see the restored value at CLI and from Python.
gdb_test "show data-directory" \
"GDB's data directory is \"${dd}\"\\." \
"check original data-directory was restored at the CLI"
gdb_test "python print (gdb.parameter ('data-directory'))" ${dd} \
"python sees restored data-directory value"
}
# Test a simple boolean parameter.
proc_with_prefix test_boolean_parameter { } {
clean_restart
gdb_test_multiline "Simple gdb booleanparameter" \
"python" "" \
"class TestParam (gdb.Parameter):" "" \
" \"\"\"When enabled, test param does something useful. When disabled, does nothing.\"\"\"" "" \
" show_doc = \"Show the state of the boolean test-param\"" ""\
" set_doc = \"Set the state of the boolean test-param\"" "" \
" def get_show_string (self, pvalue):" ""\
" return \"The state of the Test Parameter is \" + pvalue" ""\
" def get_set_string (self):" ""\
" val = \"on\"" ""\
" if (self.value == False):" ""\
" val = \"off\"" ""\
" return \"Test Parameter has been set to \" + val" ""\
" def __init__ (self, name):" "" \
" super (TestParam, self).__init__ (name, gdb.COMMAND_DATA, gdb.PARAM_BOOLEAN)" "" \
" self.value = True" "" \
"test_param = TestParam ('print test-param')" ""\
"end"
gdb_test "python print (test_param.value)" "True" \
"test boolean parameter value is True"
gdb_test "show print test-param" \
"The state of the Test Parameter is on.*" "show parameter on"
gdb_test "set print test-param off" \
"Test Parameter has been set to off" "turn off parameter"
gdb_test "show print test-param" \
"The state of the Test Parameter is off.*" "show parameter off"
gdb_test "python print (test_param.value)" "False" \
"test boolean parameter value is False"
gdb_test_no_output "python gdb.set_parameter('print test-param', True)" \
"set boolean parameter using set_parameter"
gdb_test "python print(gdb.parameter('print test-param'))" "True" \
"get boolean parameter using gdb.parameter"
gdb_test "help show print test-param" \
[multi_line \
"Show the state of the boolean test-param" \
"When enabled, test param does something useful\\. When disabled, does nothing\\."] \
"test show help"
gdb_test "help set print test-param" \
"Set the state of the boolean test-param.*" "test set help"
gdb_test "help set print" \
"set print test-param -- Set the state of the boolean test-param.*" \
"test general help"
}
# Test an enum parameter.
proc_with_prefix test_enum_parameter { } {
clean_restart
gdb_test_multiline "enum gdb parameter" \
"python" "" \
"class TestEnumParam (gdb.Parameter):" "" \
" \"\"\"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\"" "" \
" def get_show_string (self, pvalue):" ""\
" return \"The state of the enum is \" + pvalue" ""\
" def get_set_string (self):" ""\
" return \"The state of the enum has been set to \" + self.value" ""\
" def __init__ (self, name):" "" \
" super (TestEnumParam, self).__init__ (name, gdb.COMMAND_DATA, gdb.PARAM_ENUM, \[\"one\", \"two\"\])" "" \
" self.value = \"one\"" "" \
"test_enum_param = TestEnumParam ('print test-enum-param')" ""\
"end"
gdb_test "python print (test_enum_param.value)" "one" \
"test enum parameter value is one"
gdb_test "show print test-enum-param" \
"The state of the enum is one.*" \
"show parameter is initial value"
gdb_test "set print test-enum-param two" \
"The state of the enum has been set to two" "set enum to two"
gdb_test "show print test-enum-param" \
"The state of the enum is two.*" "show parameter is new value"
gdb_test "python print (test_enum_param.value)" "two" \
"test enum parameter value is two"
gdb_test "set print test-enum-param three" \
"Undefined item: \"three\".*" "set invalid enum parameter"
}
# Test an color parameter.
proc_with_prefix test_color_parameter { } {
global env
with_ansi_styling_terminal {
# This enables 256 colors support and disables colors approximation.
setenv TERM xterm-256color
setenv COLORTERM truecolor
clean_restart
gdb_test_multiline "color gdb parameter" \
"python" "" \
"class TestColorParam (gdb.Parameter):" "" \
" \"\"\"When set, test param does something useful. When disabled, does nothing.\"\"\"" "" \
" show_doc = \"Show the state of the color\"" ""\
" set_doc = \"Set the state of the color\"" "" \
" def get_show_string (self, pvalue):" ""\
" return \"The state of the color is \" + str(pvalue)" ""\
" def get_set_string (self):" ""\
" return \"The state of the color has been set to \" + str(self.value)" ""\
" def __init__ (self, name):" "" \
" super (TestColorParam, self).__init__ (name, gdb.COMMAND_DATA, gdb.PARAM_COLOR)" "" \
" self.value = gdb.Color(\"green\")" "" \
"test_color_param = TestColorParam ('print test-color-param')" ""\
"end"
gdb_test "python print (test_color_param.value)" "green" \
"test color parameter value is green"
gdb_test "show print test-color-param" \
"The state of the color is green.*" \
"show parameter is initial value"
gdb_test "set print test-color-param 255" \
"The state of the color has been set to 255" "set color to 255"
gdb_test "show print test-color-param" \
"The state of the color is 255.*" "show parameter is new value"
gdb_test "python print (test_color_param.value)" "255" \
"test color parameter value is 255"
gdb_test_no_output "python test_color_param.value = gdb.Color(254)" \
"assign test_color_param.value to 254"
gdb_test "python print (test_color_param.value)" "254" \
"test color parameter value is integer"
gdb_test_no_output "python test_color_param.value = gdb.Color('#FED210')" \
"assign test_color_param.value to #FED210"
gdb_test "python print (test_color_param.value.components)" "\\(254, 210, 16\\)" \
"test color parameter components from RGB hex tripple value"
gdb_test "set print test-color-param 256" \
"integer 256 out of range.*" "set invalid color parameter"
gdb_test "python test_color_param.value = gdb.Color(256)" \
".*Error occurred in Python: Palette color index 256 is out of range.*" "set invalid color value"
}
}
# Test a file parameter.
proc_with_prefix test_file_parameter { } {
clean_restart
gdb_test_multiline "file gdb parameter" \
"python" "" \
"class TestFileParam (gdb.Parameter):" "" \
" \"\"\"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\"" "" \
" def get_show_string (self, pvalue):" ""\
" return \"The name of the file is \" + pvalue" ""\
" def get_set_string (self):" ""\
" return \"The name of the file has been changed to \" + self.value" ""\
" def __init__ (self, name):" "" \
" super (TestFileParam, self).__init__ (name, gdb.COMMAND_FILES, gdb.PARAM_FILENAME)" "" \
" self.value = \"foo.txt\"" "" \
"test_file_param = TestFileParam ('test-file-param')" ""\
"end"
gdb_test "python print (test_file_param.value)" "foo.txt" \
"test file parameter value"
gdb_test "show test-file-param" \
"The name of the file is foo.txt.*" "show initial file value"
gdb_test "set test-file-param bar.txt" \
"The name of the file has been changed to bar.txt" \
"set new file parameter"
gdb_test "show test-file-param" \
"The name of the file is bar.txt.*" "show new file value"
gdb_test "python print (test_file_param.value)" \
"bar.txt" "test new file parameter value"
gdb_test "set test-file-param" "Argument required.*"
}
# Test a parameter that is not documented.
proc_with_prefix test_undocumented_parameter { } {
clean_restart
gdb_test_multiline "Simple gdb booleanparameter" \
"python" "" \
"class TestUndocParam (gdb.Parameter):" "" \
" def get_show_string (self, pvalue):" ""\
" return \"The state of the Test Parameter is \" + pvalue" ""\
" def get_set_string (self):" ""\
" val = \"on\"" ""\
" if (self.value == False):" ""\
" val = \"off\"" ""\
" return \"Test Parameter has been set to \" + val" ""\
" def __init__ (self, name):" "" \
" super (TestUndocParam, self).__init__ (name, gdb.COMMAND_DATA, gdb.PARAM_BOOLEAN)" "" \
" self.value = True" "" \
"test_undoc_param = TestUndocParam ('print test-undoc-param')" ""\
"end"
gdb_test "show print test-undoc-param" \
"The state of the Test Parameter is on.*" "show parameter on"
gdb_test "set print test-undoc-param off" \
"Test Parameter has been set to off" "turn off parameter"
gdb_test "show print test-undoc-param" \
"The state of the Test Parameter is off.*" "show parameter off"
gdb_test "python print (test_undoc_param.value)" \
"False" "test undocumented parameter value is False"
gdb_test "help show print test-undoc-param" \
[multi_line \
"Show the current value of 'print test-undoc-param'\\." \
"This command is not documented.*"] \
"test show help"
gdb_test "help set print test-undoc-param" \
"This command is not documented.*" "test set help"
gdb_test "help set print" \
"set print test-undoc-param -- Set the current value of 'print test-undoc-param'\\..*" \
"test general help"
}
# Test a parameter that is not documented in any way..
proc_with_prefix test_really_undocumented_parameter { } {
clean_restart
gdb_test_multiline "Simple gdb booleanparameter" \
"python" "" \
"class TestNodocParam (gdb.Parameter):" "" \
" def __init__ (self, name):" "" \
" super (TestNodocParam, self).__init__ (name, gdb.COMMAND_DATA, gdb.PARAM_BOOLEAN)" "" \
" self.value = True" "" \
"test_nodoc_param = TestNodocParam ('print test-nodoc-param')" ""\
"end"
gdb_test "show print test-nodoc-param" \
"The current value of 'print test-nodoc-param' is \"on\"\\." \
"show parameter on"
gdb_test_no_output "set print test-nodoc-param off" \
"turn off parameter"
gdb_test "show print test-nodoc-param" \
"The current value of 'print test-nodoc-param' is \"off\"\\." \
"show parameter off"
gdb_test "python print (test_nodoc_param.value)" \
"False" "test really undocumented parameter value is False"
gdb_test "help show print test-nodoc-param" \
[multi_line \
"Show the current value of 'print test-nodoc-param'\\." \
"This command is not documented.*"] \
"test show help"
gdb_test "help set print test-nodoc-param" \
"This command is not documented.*" "test set help"
gdb_test "help set print" \
"set print test-nodoc-param -- Set the current value of 'print test-nodoc-param'\\..*" \
"test general help"
}
# Test a parameter in which the __doc__ string is empty or None.
proc_with_prefix test_empty_doc_parameter {} {
gdb_test_multiline "empty __doc__ parameter" \
"python" "" \
"class EmptyDocParam(gdb.Parameter):" "" \
" __doc__ = \"\"" "" \
" def __init__(self, name):" "" \
" super ().__init__(name, gdb.COMMAND_NONE, gdb.PARAM_BOOLEAN)" "" \
" self.value = True" "" \
"test_empty_doc_param = EmptyDocParam('print test-empty-doc-param')" ""\
"end"
# Setting the __doc__ string to empty means GDB will completely
# elide it from the output.
gdb_test "help set print test-empty-doc-param" \
"^Set the current value of 'print test-empty-doc-param'\\."
gdb_test_multiline "None __doc__ parameter" \
"python" "" \
"class NoneDocParam(gdb.Parameter):" "" \
" __doc__ = None" "" \
" def __init__(self, name):" "" \
" super ().__init__(name, gdb.COMMAND_NONE, gdb.PARAM_BOOLEAN)" "" \
" self.value = True" "" \
"test_none_doc_param = NoneDocParam('print test-none-doc-param')" ""\
"end"
# Setting the __doc__ string to None, or anything else that isn't
# a string, causes GDB to use a default string instead.
gdb_test "help set print test-none-doc-param" \
[multi_line \
"^Set the current value of 'print test-none-doc-param'\\." \
"This command is not documented\\."]
}
# Test a parameter in which the set_doc/show_doc strings are either
# empty, or None.
proc_with_prefix test_empty_set_show_doc_parameter {} {
gdb_test_multiline "empty set/show doc parameter" \
"python" "" \
"class EmptySetShowParam(gdb.Parameter):" "" \
" set_doc = \"\"" "" \
" show_doc = \"\"" "" \
" def __init__(self, name):" "" \
" super ().__init__(name, gdb.COMMAND_NONE, gdb.PARAM_BOOLEAN)" "" \
" self.value = True" "" \
"test_empty_set_show_param = EmptySetShowParam('print test-empty-set-show-param')" ""\
"end"
# Setting the set_doc/show_doc string to empty means GDB will use
# a suitable default string.
gdb_test "help set print test-empty-set-show-param" \
[multi_line \
"^Set the current value of 'print test-empty-set-show-param'\\." \
"This command is not documented\\."]
gdb_test "help show print test-empty-set-show-param" \
[multi_line \
"^Show the current value of 'print test-empty-set-show-param'\\." \
"This command is not documented\\."]
gdb_test_multiline "None set/show doc parameter" \
"python" "" \
"class NoneSetShowParam(gdb.Parameter):" "" \
" set_doc = None" "" \
" show_doc = None" "" \
" def __init__(self, name):" "" \
" super ().__init__(name, gdb.COMMAND_NONE, gdb.PARAM_BOOLEAN)" "" \
" self.value = True" "" \
"test_none_set_show_param = NoneSetShowParam('print test-none-set-show-param')" ""\
"end"
# Setting the set_doc/show_doc string to None (or any non-string
# value) means GDB will use a suitable default string.
gdb_test "help set print test-none-set-show-param" \
[multi_line \
"^Set the current value of 'print test-none-set-show-param'\\." \
"This command is not documented\\."]
gdb_test "help show print test-none-set-show-param" \
[multi_line \
"^Show the current value of 'print test-none-set-show-param'\\." \
"This command is not documented\\."]
}
# Test deprecated API. Do not use in your own implementations.
proc_with_prefix test_deprecated_api_parameter { } {
clean_restart
gdb_test_multiline "Simple gdb booleanparameter" \
"python" "" \
"class TestParam (gdb.Parameter):" "" \
" \"\"\"When enabled, test param does something useful. When disabled, does nothing.\"\"\"" "" \
" show_doc = \"State of the Test Parameter\"" ""\
" set_doc = \"Set the state of the Test Parameter\"" "" \
" def __init__ (self, name):" "" \
" super (TestParam, self).__init__ (name, gdb.COMMAND_DATA, gdb.PARAM_BOOLEAN)" "" \
" self.value = True" "" \
"test_param = TestParam ('print test-param')" ""\
"end"
gdb_test "python print (test_param.value)" "True" \
"test deprecated API parameter value is True"
gdb_test "show print test-param" \
"The current value of 'print test-param' is \"on\"\\." \
"show parameter on"
gdb_test_no_output "set print test-param off" "turn off parameter"
gdb_test "show print test-param" \
"The current value of 'print test-param' is \"off\"\\." \
"show parameter off"
gdb_test "python print (test_param.value)" "False" \
"test deprecated API parameter value is False"
gdb_test "help show print test-param" \
[multi_line \
"State of the Test Parameter" \
"When enabled, test param does something useful\\. When disabled, does nothing\\."] \
"test show help"
gdb_test "help set print test-param" \
"Set the state of the Test Parameter.*" "test set help"
gdb_test "help set print" \
"set print test-param -- Set the state of the Test Parameter.*" \
"test general help"
}
proc_with_prefix test_gdb_parameter { } {
foreach_with_prefix param {
"listsize"
"print elements"
"max-completions"
"print characters"
} {
clean_restart
set param_range_error ".*gdb.error.*: integer -1 out of range.*"
switch -- $param {
"listsize" {
set param_get_zero None
set param_get_minus_one -1
set param_get_none None
set param_get_unlimited None
set param_set_minus_one ""
}
"print elements" -
"print characters" {
set param_get_zero None
set param_get_minus_one None
set param_get_none None
set param_get_unlimited None
set param_set_minus_one $param_range_error
}
"max-completions" {
set param_get_zero 0
set param_get_minus_one -1
set param_get_none -1
set param_get_unlimited -1
set param_set_minus_one ""
}
default {
error "invalid param: $param"
}
}
gdb_test_no_output "python gdb.set_parameter('$param', 1)" \
"test set to 1"
gdb_test "python print(gdb.parameter('$param'))" \
1 "test value of 1"
gdb_test_no_output "python gdb.set_parameter('$param', 0)" \
"test set to 0"
gdb_test "python print(gdb.parameter('$param'))" \
$param_get_zero "test value of 0"
py_param_test_maybe_no_output \
"python gdb.set_parameter('$param', -1)" \
$param_set_minus_one "test set to -1"
gdb_test "python print(gdb.parameter('$param'))" \
$param_get_minus_one "test value of -1"
gdb_test_no_output "python gdb.set_parameter('$param', None)" \
"test set to None"
gdb_test "python print(gdb.parameter('$param'))" \
$param_get_none "test value of None"
gdb_test_no_output "python gdb.set_parameter('$param', 'unlimited')" \
"test set to 'unlimited'"
gdb_test "python print(gdb.parameter('$param'))" \
$param_get_unlimited "test value of 'unlimited'"
if {$param == "print characters"} {
gdb_test_no_output \
"python gdb.set_parameter('$param', 'elements')" \
"test set to 'elements'"
gdb_test "python print(gdb.parameter('$param'))" \
elements "test value of 'elements'"
}
}
clean_restart
# This caused a gdb crash.
gdb_test "python print(gdb.parameter('endian'))" "auto" \
"print endian parameter"
}
proc_with_prefix test_integer_parameter { } {
foreach_with_prefix kind {
PARAM_UINTEGER
PARAM_INTEGER
PARAM_ZINTEGER
PARAM_ZUINTEGER
PARAM_ZUINTEGER_UNLIMITED
} {
clean_restart
gdb_test_multiline "create parameter" \
"python" "" \
"class TestNodocParam (gdb.Parameter):" "" \
" def __init__ (self, name):" "" \
" super (TestNodocParam, self).__init__ (name, gdb.COMMAND_DATA, gdb.$kind)" "" \
" self.value = 0" "" \
"test_param_$kind = TestNodocParam ('test-$kind')" "" \
"end"
set param_range_error "RuntimeError.*: Range exceeded.*"
set param_integer_error "RuntimeError.*: The value must be integer.*"
switch -- $kind {
PARAM_UINTEGER {
set param_get_zero None
set param_get_minus_one None
set param_get_minus_five 1
set param_get_none None
set param_get_unlimited None
set param_set_minus_one $param_range_error
set param_set_minus_five $param_range_error
set param_set_none ""
}
PARAM_INTEGER {
set param_get_zero None
set param_get_minus_one -1
set param_get_minus_five -5
set param_get_none None
set param_get_unlimited None
set param_set_minus_one -1
set param_set_minus_five -5
set param_set_none ""
}
PARAM_ZINTEGER {
set param_get_zero 0
set param_get_minus_one -1
set param_get_minus_five -5
set param_get_none 5
set param_get_unlimited 0
set param_set_minus_one ""
set param_set_minus_five ""
set param_set_none $param_integer_error
}
PARAM_ZUINTEGER {
set param_get_zero 0
set param_get_minus_one 0
set param_get_minus_five 1
set param_get_none 5
set param_get_unlimited 0
set param_set_minus_one $param_range_error
set param_set_minus_five $param_range_error
set param_set_none $param_integer_error
}
PARAM_ZUINTEGER_UNLIMITED {
set param_get_zero 0
set param_get_minus_one -1
set param_get_minus_five 1
set param_get_none -1
set param_get_unlimited -1
set param_set_minus_one ""
set param_set_minus_five $param_range_error
set param_set_none ""
}
default {
error "invalid kind: $kind"
}
}
gdb_test "python print(test_param_$kind.value)" \
$param_get_zero "test default value"
gdb_test "python print(gdb.parameter('test-$kind'))" \
$param_get_zero "test default value via gdb.parameter"
py_param_test_maybe_no_output "python test_param_$kind.value = -1" \
$param_set_minus_one "test set to -1"
gdb_test "python print(test_param_$kind.value)" \
$param_get_minus_one "test value of -1"
gdb_test "python print(gdb.parameter('test-$kind'))" \
$param_get_minus_one "test value of -1 via gdb.parameter"
gdb_test_no_output "python test_param_$kind.value = 1" "test set to 1"
gdb_test "python print(test_param_$kind.value)" 1 "test value of 1"
gdb_test "python print(gdb.parameter('test-$kind'))" \
1 "test value of 1 via gdb.parameter"
py_param_test_maybe_no_output "python test_param_$kind.value = -5" \
$param_set_minus_five "test set to -5"
gdb_test "python print(gdb.parameter('test-$kind'))" \
$param_get_minus_five "test value of -5 via gdb.parameter"
gdb_test_no_output "python test_param_$kind.value = 5" "test set to 5"
gdb_test "python print(gdb.parameter('test-$kind'))" \
5 "test value of 5 via gdb.parameter"
py_param_test_maybe_no_output "python test_param_$kind.value = None" \
$param_set_none "test set to None"
gdb_test "python print(test_param_$kind.value)" \
$param_get_none "test value of None"
gdb_test "python print(gdb.parameter('test-$kind'))" \
$param_get_none "test value of None via gdb.parameter"
gdb_test_no_output "python test_param_$kind.value = 0" \
"test set to 0"
gdb_test "python print(gdb.parameter('test-$kind'))" \
$param_get_zero "test value of 0 via gdb.parameter"
py_param_test_maybe_no_output \
"python test_param_$kind.value = 'unlimited'" \
$param_set_none "test set to 'unlimited'"
gdb_test "python print(test_param_$kind.value)" \
$param_get_unlimited "test value of 'unlimited'"
gdb_test "python print(gdb.parameter('test-$kind'))" \
$param_get_unlimited "test value of 'unlimited' via gdb.parameter"
}
}
proc_with_prefix test_throwing_parameter { } {
clean_restart
gdb_test_multiline "Throwing gdb parameter" \
"python" "" \
"class TestThrowParam (gdb.Parameter):" "" \
" def __init__ (self, name):" "" \
" super (TestThrowParam, self).__init__ (name, gdb.COMMAND_DATA, gdb.PARAM_STRING)" "" \
" self.value = True" "" \
" def get_set_string (self):" "" \
" raise gdb.GdbError('Ordinary gdb error')" "" \
"test_throw_param = TestThrowParam ('print test-throw-param')" ""\
"end"
gdb_test "set print test-throw-param whoops" \
"Ordinary gdb error" \
"gdb.GdbError does not show Python stack"
}
proc_with_prefix test_language {} {
gdb_test "python print(gdb.parameter('language'))" "auto" \
"print language parameter"
gdb_test "python print(gdb.current_language())" "c" \
"print current language"
gdb_test_no_output "set lang rust"
gdb_test "python print(gdb.parameter('language'))" "rust" \
"print language parameter for rust"
gdb_test "python print(gdb.current_language())" "rust" \
"print current language for rust"
gdb_test_no_output "set lang auto"
}
proc_with_prefix test_ambiguous_parameter {} {
gdb_test_multiline "create parameter" \
"python" "" \
"class TestAmbiguousParam (gdb.Parameter):" "" \
" def __init__ (self, name, value):" "" \
" super (TestAmbiguousParam, self).__init__ (name, gdb.COMMAND_DATA, gdb.PARAM_INTEGER)" "" \
" self.value = value" "" \
"end"
# Create parameters.
gdb_test "python TestAmbiguousParam('test-ambiguous-value-1', 1)" ""
gdb_test "python TestAmbiguousParam('test-ambiguous-value-2-extra', 2)" ""
gdb_test "python TestAmbiguousParam('test-ambiguous', 3)" ""
# Test unambiguous matches.
gdb_test "python print(gdb.parameter('test-ambiguous-value-1'))" "1"
gdb_test "python print(gdb.parameter('test-ambiguous-value-2-extra'))" "2"
gdb_test "python print(gdb.parameter('test-ambiguous-value-2'))" "2"
gdb_test "python print(gdb.parameter('test-ambiguous'))" "3"
# Test ambiguous names.
gdb_test "python print(gdb.parameter('test-ambiguou'))" \
"Parameter .* is ambiguous.*Error occurred in Python.*"
gdb_test "python print(gdb.parameter('test-ambiguous-'))" \
"Parameter .* is ambiguous.*Error occurred in Python.*"
gdb_test "python print(gdb.parameter('test-ambiguous-v'))" \
"Parameter .* is ambiguous.*Error occurred in Python.*"
gdb_test "python print(gdb.parameter('test-ambiguous-value-1a'))" \
"Could not find parameter.*Error occurred in Python.*"
# Create command prefixs 'set foo1' and 'show foo1'.
gdb_test_no_output "python gdb.Command('set foo1', gdb.COMMAND_NONE, prefix=True)"
gdb_test_no_output "python gdb.Command('show foo1', gdb.COMMAND_NONE, prefix=True)"
# Create a parameter under 'foo1', but use a truncated prefix. At
# this point though, the prefix is not ambiguous.
gdb_test_no_output "python gdb.Parameter('foo bar', gdb.COMMAND_NONE, gdb.PARAM_BOOLEAN)"
gdb_test "python print(gdb.parameter('foo1 bar'))" "False"
# Create another prefix command, similar in name to the first.
gdb_test_no_output "python gdb.Command('set foo2', gdb.COMMAND_NONE, prefix=True)"
gdb_test_no_output "python gdb.Command('show foo2', gdb.COMMAND_NONE, prefix=True)"
# An attempt to create a parameter using an ambiguous prefix will give an error.
gdb_test "python gdb.Parameter('foo baz', gdb.COMMAND_NONE, gdb.PARAM_BOOLEAN)" \
[multi_line \
"Python Exception <class 'RuntimeError'>: Could not find command prefix foo\\." \
"Error occurred in Python: Could not find command prefix foo\\."]
}
# Check that creating a gdb.Parameter with an unknown command prefix results in an error.
proc_with_prefix test_unknown_prefix {} {
gdb_test_multiline "create parameter" \
"python" "" \
"class UnknownPrefixParam(gdb.Parameter):" "" \
" def __init__ (self, name):" "" \
" super().__init__ (name, gdb.COMMAND_NONE, gdb.PARAM_BOOLEAN)" "" \
" self.value = True" "" \
"end"
foreach prefix { "unknown-prefix" "style unknown-prefix" "style disassembler unknown-prefix"} {
gdb_test "python UnknownPrefixParam('$prefix new-param')" \
[multi_line \
"Python Exception <class 'RuntimeError'>: Could not find command prefix $prefix\\." \
"Error occurred in Python: Could not find command prefix $prefix\\."]
}
}
test_directories
test_data_directory
test_boolean_parameter
test_enum_parameter
test_color_parameter
test_file_parameter
test_undocumented_parameter
test_really_undocumented_parameter
test_empty_doc_parameter
test_empty_set_show_doc_parameter
test_deprecated_api_parameter
test_gdb_parameter
test_integer_parameter
test_throwing_parameter
test_language
test_ambiguous_parameter
test_unknown_prefix
rename py_param_test_maybe_no_output ""