testsuite/gdb.python/py-mi-cmd.exp

# Copyright (C) 2019-2024 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 custom MI commands implemented in Python.

load_lib gdb-python.exp
load_lib mi-support.exp
set MIFLAGS "-i=mi"

gdb_exit
if {[mi_gdb_start]} {
    return
}

if {[lsearch -exact [mi_get_features] python] < 0} {
    unsupported "python support is disabled"
    return -1
}

standard_testfile

mi_gdb_test "set python print-stack full" \
    ".*\\^done" \
    "set python print-stack full"

mi_gdb_test "source ${srcdir}/${subdir}/${testfile}.py" \
    ".*\\^done" \
    "load python file"

mi_gdb_test "python pycmd1('-pycmd')" \
    ".*\\^done" \
    "define -pycmd MI command"

mi_gdb_test "-pycmd int" \
    "\\^done,result=\"42\"" \
    "-pycmd int"

mi_gdb_test "-pycmd str" \
    "\\^done,result=\"Hello world!\"" \
    "-pycmd str"

mi_gdb_test "-pycmd ary" \
    "\\^done,result=\\\[\"Hello\",\"42\"\\\]" \
    "-pycmd ary"

set re_order1 "\\^done,result={hello=\"world\",times=\"42\"}"
set re_order2 "\\^done,result={times=\"42\",hello=\"world\"}"
mi_gdb_test "-pycmd dct" \
    "($re_order1|$re_order2)" \
    "-pycmd dct"

mi_gdb_test "-pycmd bk1" \
    "\\^error,msg=\"Error occurred in Python: non-string object used as key: Bad Key\"" \
    "-pycmd bk1"

mi_gdb_test "-pycmd bk2" \
    "\\^error,msg=\"Error occurred in Python: non-string object used as key: 1\"" \
    "-pycmd bk2"

mi_gdb_test "-pycmd bk3" \
    [multi_line \
	 "&\"TypeError.*: __repr__ returned non-string \\(type BadKey\\)..\"" \
	 "\\^error,msg=\"Error occurred in Python: __repr__ returned non-string \\(type BadKey\\)\""] \
    "-pycmd bk3"

mi_gdb_test "-pycmd tpl" \
    "\\^done,result=\\\[\"42\",\"Hello\"\\\]" \
    "-pycmd tpl"

mi_gdb_test "-pycmd itr" \
    "\\^done,result=\\\[\"1\",\"2\",\"3\"\\\]" \
    "-pycmd itr"

mi_gdb_test "-pycmd nn1" \
    "\\^done" \
    "-pycmd nn1"

mi_gdb_test "-pycmd nn2" \
    "\\^done,result=\\\[\"None\"\\\]" \
    "-pycmd nn2"

mi_gdb_test "-pycmd bogus" \
    "\\^error,msg=\"Invalid parameter: bogus\"" \
    "-pycmd bogus"

# Check that the top-level result from 'invoke' must be a dictionary.
foreach test_name { nd1 nd2 nd3 } {
    mi_gdb_test "-pycmd ${test_name}" \
	"\\^error,msg=\"Error occurred in Python: Result from invoke must be a dictionary\""
}

# Check for invalid strings in the result.
foreach test_desc { {ik1 "xxx yyy"} {ik2 "xxx yyy"} {ik3 "xxx\\+yyy"} \
			{ik4 "xxx\\.yyy"} {ik5 "123xxxyyy"} } {
    lassign $test_desc name pattern

    mi_gdb_test "-pycmd ${name}" \
	"\\^error,msg=\"Error occurred in Python: Invalid key in MI result: ${pattern}\""
}

mi_gdb_test "-pycmd empty_key" \
    "\\^error,msg=\"Error occurred in Python: Invalid empty key in MI result\""

# Check that a dash ('-') can be used in a key name.
mi_gdb_test "-pycmd dash-key" \
    "\\^done,the-key=\"123\""

# With this argument the command raises a gdb.GdbError with no message
# string.  GDB considers this a bug in the user program, so prints a
# backtrace, and a generic error message.

set line1 \
    [string_to_regexp {Traceback (most recent call last):\n}]
set line2 \
    [string cat \
	 [string_to_regexp {  File \"}] \
	 "\[^\r\n\]+" \
	 [string_to_regexp ${testfile}.py] \
	 [string_to_regexp {\", line }] \
	 $decimal \
	 [string_to_regexp {, in invoke\n}]]
set line3 \
    [string_to_regexp {    raise gdb.GdbError()\n}]
set line4 \
    [string_to_regexp {gdb.GdbError\n}]
set errline \
    [string_to_regexp {^error,msg="Error occurred in Python."}]

set start_line \
    [string_to_regexp {&"}]
set end_line \
    [string_to_regexp {"}]

# With python <= 3.12.
set re1 \
    [multi_line \
	 $start_line$line1$end_line \
	 $start_line$line2$end_line \
	 $start_line$line3$end_line \
	 $start_line$line4$end_line \
	 $errline]

# With python >= 3.13.
set re2 \
    [multi_line \
	 $start_line$line1$end_line \
	 $start_line$line2$line3$end_line \
	 $start_line$line4$end_line \
	 $errline]

mi_gdb_test "-pycmd exp" ($re1|$re2)

mi_gdb_test "python pycmd2('-pycmd')" \
    ".*\\^done" \
    "redefine -pycmd MI command from CLI command"

mi_gdb_test "-pycmd str" \
    "\\^done,result=\"Ciao!\"" \
    "-pycmd str - redefined from CLI"

mi_gdb_test "-pycmd int" \
    "\\^error,msg=\"Invalid parameter: int\"" \
    "-pycmd int - redefined from CLI"

mi_gdb_test "-pycmd new" \
    "\\^done" \
    "Define new command -pycmd-new MI command from Python MI command"

mi_gdb_test "-pycmd red" \
    "\\^error,msg=\"Command redefined but we failing anyway\"" \
    "redefine -pycmd MI command from Python MI command"

mi_gdb_test "-pycmd int" \
    "\\^done,result=\"42\"" \
    "-pycmd int - redefined from MI"

mi_gdb_test "-pycmd-new int" \
    "\\^done,result=\"42\"" \
    "-pycmd-new int - defined from MI"

mi_gdb_test "python pycmd1('')" \
    ".*&\"ValueError.*: MI command name is empty\\...\".*\\^error,msg=\"Error occurred in Python.*\"" \
    "empty MI command name"

mi_gdb_test "python pycmd1('-')" \
    [multi_line \
	 ".*" \
	 "&\"ValueError.*: MI command name does not start with '-' followed by at least one letter or digit\\...\"" \
	 "&\"Error occurred in Python.*..\"" \
	 "\\^error,msg=\"Error occurred in Python.*\""] \
    "invalid MI command name"

mi_gdb_test "python pycmd1('-bad-character-@')" \
    [multi_line \
	 ".*" \
	 "&\"ValueError.*: MI command name contains invalid character: @\\...\"" \
	 "&\"Error occurred in Python.*..\"" \
	 "\\^error,msg=\"Error occurred in Python.*\""] \
    "invalid character in MI command name"

mi_gdb_test "python cmd=pycmd1('-abc')" \
    ".*\\^done" \
    "create command -abc, stored in a python variable"

mi_gdb_test "python print(cmd.name)" \
    ".*\r\n~\"-abc\\\\n\"\r\n\\^done" \
    "print the name of the stored mi command"

mi_gdb_test "python print(cmd.installed)" \
    ".*\r\n~\"True\\\\n\"\r\n\\^done" \
    "print the installed status of the stored mi command"

mi_gdb_test "-abc str" \
    "\\^done,result=\"Hello world!\"" \
    "-abc str"

mi_gdb_test "python cmd.installed = False" \
    ".*\\^done" \
    "uninstall the mi command"

mi_gdb_test "-abc str" \
    "\\^error,msg=\"Undefined MI command: abc\",code=\"undefined-command\"" \
    "-abc str, but now the command is gone"

mi_gdb_test "python cmd.installed = None" \
    ".*\r\n\\^error,msg=\"Error occurred in Python: gdb\\.MICommand\\.installed must be set to a bool, not None\"" \
    "re-install the mi command using value None"

mi_gdb_test "python cmd.installed = 1" \
    ".*\r\n\\^error,msg=\"Error occurred in Python: gdb\\.MICommand\\.installed must be set to a bool, not int\"" \
    "re-install the mi command using an int value"

mi_gdb_test "python print(cmd.installed)" \
    [multi_line \
	 ".*" \
	 "~\"False\\\\n\"" \
	 "\\^done"] \
    "cmd is still not installed"

mi_gdb_test "python cmd.installed = True" \
    ".*\\^done" \
    "re-install the mi command"

mi_gdb_test "-abc str" \
    "\\^done,result=\"Hello world!\"" \
    "-abc str, the command is back again"

mi_gdb_test "python other=pycmd2('-abc')" \
    ".*\\^done" \
    "create another command called -abc, stored in a separate python variable"

mi_gdb_test "python print(other.installed)" \
    ".*\r\n~\"True\\\\n\"\r\n\\^done" \
    "print the installed status of the other stored mi command"

mi_gdb_test "python print(cmd.installed)" \
    ".*\r\n~\"False\\\\n\"\r\n\\^done" \
    "print the installed status of the original stored mi command"

mi_gdb_test "-abc str" \
    "\\^done,result=\"Ciao!\"" \
    "-abc str, when the other command is in place"

mi_gdb_test "python cmd.installed = True" \
    ".*\\^done" \
    "re-install the original mi command"

mi_gdb_test "-abc str" \
    "\\^done,result=\"Hello world!\"" \
    "-abc str, the original command is back again"

mi_gdb_test "python print(other.installed)" \
    ".*\r\n~\"False\\\\n\"\r\n\\^done" \
    "the other command is now not installed"

mi_gdb_test "python print(cmd.installed)" \
    ".*\r\n~\"True\\\\n\"\r\n\\^done" \
    "the original command is now installed"

mi_gdb_test "python aa = pycmd3('-aa', 'message one', 'xxx')" \
    ".*\\^done" \
    "created a new -aa command"

mi_gdb_test "-aa" \
    ".*\\^done,xxx={msg=\"message one\"}" \
    "call the -aa command"

mi_gdb_test "python aa.__init__('-aa', 'message two', 'yyy')" \
    ".*\\^done" \
    "reinitialise -aa command with a new message"

mi_gdb_test "-aa" \
    ".*\\^done,yyy={msg=\"message two\"}" \
    "call the -aa command, get the new message"

mi_gdb_test "python aa.__init__('-bb', 'message three', 'zzz')" \
    [multi_line \
	 ".*" \
	 "&\"ValueError.*: can't reinitialize object with a different command name..\"" \
	 "&\"Error occurred in Python.*..\"" \
	 "\\^error,msg=\"Error occurred in Python.*\""] \
    "attempt to reinitialise aa variable to a new command name"

mi_gdb_test "-aa" \
    ".*\\^done,yyy={msg=\"message two\"}" \
    "check the aa object has not changed after failed initialization"

mi_gdb_test "python aa.installed = False" \
    ".*\\^done" \
    "uninstall the -aa command"

mi_gdb_test "python aa.__init__('-bb', 'message three', 'zzz')" \
    [multi_line \
	 ".*" \
	 "&\"ValueError.*: can't reinitialize object with a different command name..\"" \
	 "&\"Error occurred in Python.*..\"" \
	 "\\^error,msg=\"Error occurred in Python.*\""] \
    "attempt to reinitialise aa variable to a new command name while uninstalled"

mi_gdb_test "python aa.__init__('-aa', 'message three', 'zzz')" \
    ".*\\^done" \
    "reinitialise -aa command with a new message while uninstalled"

mi_gdb_test "python aa.installed = True" \
    ".*\\^done" \
    "install the -aa command"

mi_gdb_test "-aa" \
    ".*\\^done,zzz={msg=\"message three\"}" \
    "call the -aa command looking for message three"

# Try to register a command object that is missing an invoke method.
# This is accepted, but will give an error when the user tries to run
# the command.
mi_gdb_test "python no_invoke('-no-invoke')" ".*\\^done" \
    "attempt to register command with no invoke method"
mi_gdb_test "-no-invoke" \
    [multi_line \
	 ".*" \
	 "&\"AttributeError.*: 'no_invoke' object has no attribute 'invoke'..\"" \
	 "\\^error,msg=\"Error occurred in Python: 'no_invoke' object has no attribute 'invoke'\""] \
    "execute -no-invoke command, which is missing the invoke method"

# Register a command, then delete its invoke method.  What is the user thinking!!
mi_gdb_test "python setattr(no_invoke, 'invoke', free_invoke)" ".*\\^done"
mi_gdb_test "python cmd = no_invoke('-hello')" ".*\\^done"
mi_gdb_test "-hello" ".*\\^done,result=\\\[\\\]" \
    "execute no_invoke command, while it still has an invoke attribute"
mi_gdb_test "python delattr(no_invoke, 'invoke')" ".*\\^done"
mi_gdb_test "-hello" \
    [multi_line \
	 ".*" \
	 "&\"AttributeError.*: 'no_invoke' object has no attribute 'invoke'..\"" \
	 "\\^error,msg=\"Error occurred in Python: 'no_invoke' object has no attribute 'invoke'\""] \
    "execute -hello command, that had its invoke method removed"
mi_gdb_test "python cmd.invoke = 'string'" ".*\\^done"
mi_gdb_test "-hello" \
    [multi_line \
	 ".*" \
	 "&\"TypeError.*: 'str' object is not callable..\"" \
	 "\\^error,msg=\"Error occurred in Python: 'str' object is not callable\""] \
    "execute command with invoke set to a string"

# Try to create a new MI command that uses the name of a builtin MI command.
mi_gdb_test "python cmd = pycmd2('-data-disassemble')" \
    [multi_line \
	 ".*" \
	 "&\"RuntimeError.*: unable to add command, name is already in use..\"" \
	 "&\"Error occurred in Python.*..\"" \
	 "\\^error,msg=\"Error occurred in Python.*\""] \
    "try to register a command that replaces -data-disassemble"


mi_gdb_test "python run_exception_tests()" \
    [multi_line \
	 ".*" \
	 "~\"PASS..\"" \
	 "\\^done"]