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Removed the Requirement to Install Python and NodeJS (Now Bundled with Borealis)
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301
Dependencies/Python/Lib/test/test_cmd.py
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301
Dependencies/Python/Lib/test/test_cmd.py
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"""
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Test script for the 'cmd' module
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Original by Michael Schneider
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"""
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import cmd
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import sys
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import doctest
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import unittest
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import io
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import textwrap
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from test import support
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from test.support.import_helper import import_module
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from test.support.pty_helper import run_pty
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class samplecmdclass(cmd.Cmd):
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"""
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Instance the sampleclass:
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>>> mycmd = samplecmdclass()
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Test for the function parseline():
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>>> mycmd.parseline("")
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(None, None, '')
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>>> mycmd.parseline("?")
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('help', '', 'help ')
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>>> mycmd.parseline("?help")
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('help', 'help', 'help help')
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>>> mycmd.parseline("!")
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('shell', '', 'shell ')
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>>> mycmd.parseline("!command")
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('shell', 'command', 'shell command')
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>>> mycmd.parseline("func")
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('func', '', 'func')
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>>> mycmd.parseline("func arg1")
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('func', 'arg1', 'func arg1')
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Test for the function onecmd():
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>>> mycmd.onecmd("")
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>>> mycmd.onecmd("add 4 5")
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9
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>>> mycmd.onecmd("")
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9
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>>> mycmd.onecmd("test")
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*** Unknown syntax: test
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Test for the function emptyline():
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>>> mycmd.emptyline()
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*** Unknown syntax: test
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Test for the function default():
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>>> mycmd.default("default")
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*** Unknown syntax: default
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Test for the function completedefault():
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>>> mycmd.completedefault()
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This is the completedefault method
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>>> mycmd.completenames("a")
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['add']
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Test for the function completenames():
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>>> mycmd.completenames("12")
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[]
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>>> mycmd.completenames("help")
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['help']
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Test for the function complete_help():
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>>> mycmd.complete_help("a")
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['add']
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>>> mycmd.complete_help("he")
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['help']
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>>> mycmd.complete_help("12")
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[]
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>>> sorted(mycmd.complete_help(""))
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['add', 'exit', 'help', 'life', 'meaning', 'shell']
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Test for the function do_help():
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>>> mycmd.do_help("testet")
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*** No help on testet
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>>> mycmd.do_help("add")
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help text for add
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>>> mycmd.onecmd("help add")
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help text for add
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>>> mycmd.onecmd("help meaning") # doctest: +NORMALIZE_WHITESPACE
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Try and be nice to people, avoid eating fat, read a good book every
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now and then, get some walking in, and try to live together in peace
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and harmony with people of all creeds and nations.
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>>> mycmd.do_help("")
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<BLANKLINE>
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Documented commands (type help <topic>):
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========================================
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add help
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<BLANKLINE>
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Miscellaneous help topics:
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==========================
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life meaning
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<BLANKLINE>
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Undocumented commands:
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======================
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exit shell
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<BLANKLINE>
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Test for the function print_topics():
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>>> mycmd.print_topics("header", ["command1", "command2"], 2 ,10)
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header
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======
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command1
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command2
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<BLANKLINE>
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Test for the function columnize():
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>>> mycmd.columnize([str(i) for i in range(20)])
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0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
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>>> mycmd.columnize([str(i) for i in range(20)], 10)
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0 7 14
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1 8 15
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2 9 16
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3 10 17
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4 11 18
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5 12 19
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6 13
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This is an interactive test, put some commands in the cmdqueue attribute
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and let it execute
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This test includes the preloop(), postloop(), default(), emptyline(),
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parseline(), do_help() functions
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>>> mycmd.use_rawinput=0
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>>> mycmd.cmdqueue=["add", "add 4 5", "", "help", "help add", "exit"]
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>>> mycmd.cmdloop() # doctest: +REPORT_NDIFF
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Hello from preloop
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*** invalid number of arguments
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9
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9
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<BLANKLINE>
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Documented commands (type help <topic>):
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========================================
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add help
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<BLANKLINE>
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Miscellaneous help topics:
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==========================
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life meaning
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<BLANKLINE>
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Undocumented commands:
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======================
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exit shell
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<BLANKLINE>
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help text for add
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Hello from postloop
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"""
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def preloop(self):
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print("Hello from preloop")
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def postloop(self):
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print("Hello from postloop")
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def completedefault(self, *ignored):
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print("This is the completedefault method")
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def complete_command(self):
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print("complete command")
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def do_shell(self, s):
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pass
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def do_add(self, s):
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l = s.split()
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if len(l) != 2:
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print("*** invalid number of arguments")
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return
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try:
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l = [int(i) for i in l]
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except ValueError:
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print("*** arguments should be numbers")
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return
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print(l[0]+l[1])
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def help_add(self):
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print("help text for add")
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return
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def help_meaning(self):
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print("Try and be nice to people, avoid eating fat, read a "
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"good book every now and then, get some walking in, "
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"and try to live together in peace and harmony with "
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"people of all creeds and nations.")
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return
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def help_life(self):
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print("Always look on the bright side of life")
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return
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def do_exit(self, arg):
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return True
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class TestAlternateInput(unittest.TestCase):
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class simplecmd(cmd.Cmd):
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def do_print(self, args):
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print(args, file=self.stdout)
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def do_EOF(self, args):
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return True
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class simplecmd2(simplecmd):
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def do_EOF(self, args):
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print('*** Unknown syntax: EOF', file=self.stdout)
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return True
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def test_file_with_missing_final_nl(self):
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input = io.StringIO("print test\nprint test2")
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output = io.StringIO()
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cmd = self.simplecmd(stdin=input, stdout=output)
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cmd.use_rawinput = False
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cmd.cmdloop()
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self.assertMultiLineEqual(output.getvalue(),
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("(Cmd) test\n"
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"(Cmd) test2\n"
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"(Cmd) "))
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def test_input_reset_at_EOF(self):
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input = io.StringIO("print test\nprint test2")
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output = io.StringIO()
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cmd = self.simplecmd2(stdin=input, stdout=output)
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cmd.use_rawinput = False
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cmd.cmdloop()
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self.assertMultiLineEqual(output.getvalue(),
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("(Cmd) test\n"
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"(Cmd) test2\n"
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"(Cmd) *** Unknown syntax: EOF\n"))
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input = io.StringIO("print \n\n")
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output = io.StringIO()
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cmd.stdin = input
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cmd.stdout = output
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cmd.cmdloop()
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self.assertMultiLineEqual(output.getvalue(),
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("(Cmd) \n"
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"(Cmd) \n"
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"(Cmd) *** Unknown syntax: EOF\n"))
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class CmdPrintExceptionClass(cmd.Cmd):
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"""
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GH-80731
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cmd.Cmd should print the correct exception in default()
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>>> mycmd = CmdPrintExceptionClass()
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>>> try:
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... raise ValueError("test")
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... except ValueError:
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... mycmd.onecmd("not important")
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(<class 'ValueError'>, ValueError('test'))
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"""
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def default(self, line):
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print(sys.exc_info()[:2])
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@support.requires_subprocess()
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class CmdTestReadline(unittest.TestCase):
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def setUpClass():
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# Ensure that the readline module is loaded
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# If this fails, the test is skipped because SkipTest will be raised
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readline = import_module('readline')
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def test_basic_completion(self):
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script = textwrap.dedent("""
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import cmd
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class simplecmd(cmd.Cmd):
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def do_tab_completion_test(self, args):
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print('tab completion success')
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return True
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simplecmd().cmdloop()
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""")
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# 't' and complete 'ab_completion_test' to 'tab_completion_test'
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input = b"t\t\n"
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output = run_pty(script, input)
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self.assertIn(b'ab_completion_test', output)
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self.assertIn(b'tab completion success', output)
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def load_tests(loader, tests, pattern):
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tests.addTest(doctest.DocTestSuite())
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return tests
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if __name__ == "__main__":
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if "-i" in sys.argv:
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samplecmdclass().cmdloop()
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else:
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unittest.main()
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