~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2005, 2006, 2007 Canonical Ltd

#

# 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 2 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, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

import re

from bzrlib import (

    bzrdir,

    commands,

    errors,

    option,

    )

from bzrlib.builtins import cmd_commit

from bzrlib.commands import Command, parse_args

from bzrlib.tests import TestCase

from bzrlib.repofmt import knitrepo

def parse(options, args):

    parser = option.get_optparser(dict((o.name, o) for o in options))

    return parser.parse_args(args)

class OptionTests(TestCase):

    """Command-line option tests"""

    def test_parse_args(self):

        """Option parser"""

        # XXX: Using cmd_commit makes these tests overly sensitive to changes

        # to cmd_commit, when they are meant to be about option parsing in

        # general.

        self.assertEqual(parse_args(cmd_commit(), ['--help']),

           ([], {'author': [], 'exclude': [], 'fixes': [], 'help': True}))

        self.assertEqual(parse_args(cmd_commit(), ['--message=biter']),

           ([], {'author': [], 'exclude': [], 'fixes': [], 'message': 'biter'}))

    def test_no_more_opts(self):

        """Terminated options"""

        self.assertEqual(parse_args(cmd_commit(), ['--', '-file-with-dashes']),

                          (['-file-with-dashes'], {'author': [], 'exclude': [], 'fixes': []}))

    def test_option_help(self):

        """Options have help strings."""

        out, err = self.run_bzr('commit --help')

        self.assertContainsRe(out,

                r'--file(.|\n)*Take commit message from this file\.')

        self.assertContainsRe(out, r'-h.*--help')

    def test_option_help_global(self):

        """Global options have help strings."""

        out, err = self.run_bzr('help status')

        self.assertContainsRe(out, r'--show-ids.*Show internal object.')

    def test_option_arg_help(self):

        """Help message shows option arguments."""

        out, err = self.run_bzr('help commit')

        self.assertEqual(err, '')

        self.assertContainsRe(out, r'--file[ =]MSGFILE')

    def test_unknown_short_opt(self):

        out, err = self.run_bzr('help -r', retcode=3)

        self.assertContainsRe(err, r'no such option')

    def test_set_short_name(self):

        o = option.Option('wiggle')

        o.set_short_name('w')

        self.assertEqual(o.short_name(), 'w')

    def test_allow_dash(self):

        """Test that we can pass a plain '-' as an argument."""

        self.assertEqual((['-']), parse_args(cmd_commit(), ['-'])[0])

    def parse(self, options, args):

        parser = option.get_optparser(dict((o.name, o) for o in options))

        return parser.parse_args(args)

    def test_conversion(self):

        options = [option.Option('hello')]

        opts, args = self.parse(options, ['--no-hello', '--hello'])

        self.assertEqual(True, opts.hello)

        opts, args = self.parse(options, [])

        self.assertFalse(hasattr(opts, 'hello'))

        opts, args = self.parse(options, ['--hello', '--no-hello'])

        self.assertEqual(False, opts.hello)

        options = [option.Option('number', type=int)]

        opts, args = self.parse(options, ['--number', '6'])

        self.assertEqual(6, opts.number)

        self.assertRaises(errors.BzrCommandError, self.parse, options,

                          ['--number'])

        self.assertRaises(errors.BzrCommandError, self.parse, options,

                          ['--no-number'])

    def test_is_hidden(self):

        self.assertTrue(option.Option('foo', hidden=True).is_hidden('foo'))

        self.assertFalse(option.Option('foo', hidden=False).is_hidden('foo'))

    def test_registry_conversion(self):

        registry = bzrdir.BzrDirFormatRegistry()

        registry.register_metadir('one', 'RepositoryFormat7', 'one help')

        registry.register_metadir('two', 'RepositoryFormatKnit1', 'two help')

        registry.register_metadir('hidden', 'RepositoryFormatKnit1',

            'two help', hidden=True)

        registry.set_default('one')

        options = [option.RegistryOption('format', '', registry, str)]

        opts, args = self.parse(options, ['--format', 'one'])

        self.assertEqual({'format':'one'}, opts)

        opts, args = self.parse(options, ['--format', 'two'])

        self.assertEqual({'format':'two'}, opts)

        self.assertRaises(errors.BadOptionValue, self.parse, options,

                          ['--format', 'three'])

        self.assertRaises(errors.BzrCommandError, self.parse, options,

                          ['--two'])

        options = [option.RegistryOption('format', '', registry, str,

                   value_switches=True)]

        opts, args = self.parse(options, ['--two'])

        self.assertEqual({'format':'two'}, opts)

        opts, args = self.parse(options, ['--two', '--one'])

        self.assertEqual({'format':'one'}, opts)

        opts, args = self.parse(options, ['--two', '--one',

                                          '--format', 'two'])

        self.assertEqual({'format':'two'}, opts)

        options = [option.RegistryOption('format', '', registry, str,

                   enum_switch=False)]

        self.assertRaises(errors.BzrCommandError, self.parse, options,

                          ['--format', 'two'])

    def test_override(self):

        options = [option.Option('hello', type=str),

                   option.Option('hi', type=str, param_name='hello')]

        opts, args = self.parse(options, ['--hello', 'a', '--hello', 'b'])

        self.assertEqual('b', opts.hello)

        opts, args = self.parse(options, ['--hello', 'b', '--hello', 'a'])

        self.assertEqual('a', opts.hello)

        opts, args = self.parse(options, ['--hello', 'a', '--hi', 'b'])

        self.assertEqual('b', opts.hello)

        opts, args = self.parse(options, ['--hi', 'b', '--hello', 'a'])

        self.assertEqual('a', opts.hello)

    def test_registry_converter(self):

        options = [option.RegistryOption('format', '',

                   bzrdir.format_registry, bzrdir.format_registry.make_bzrdir)]

        opts, args = self.parse(options, ['--format', 'knit'])

        self.assertIsInstance(opts.format.repository_format,

                              knitrepo.RepositoryFormatKnit1)

    def test_lazy_registry(self):

        options = [option.RegistryOption('format', '',

                   lazy_registry=('bzrlib.bzrdir','format_registry'),

                   converter=str)]

        opts, args = self.parse(options, ['--format', 'knit'])

        self.assertEqual({'format': 'knit'}, opts)

        self.assertRaises(

            errors.BadOptionValue, self.parse, options, ['--format', 'BAD'])

    def test_from_kwargs(self):

        my_option = option.RegistryOption.from_kwargs('my-option',

            help='test option', short='be short', be_long='go long')

        self.assertEqual(['my-option'],

            [x[0] for x in my_option.iter_switches()])

        my_option = option.RegistryOption.from_kwargs('my-option',

            help='test option', title="My option", short='be short',

            be_long='go long', value_switches=True)

        self.assertEqual(['my-option', 'be-long', 'short'],

            [x[0] for x in my_option.iter_switches()])

        self.assertEqual('test option', my_option.help)

    def test_help(self):

        registry = bzrdir.BzrDirFormatRegistry()

        registry.register_metadir('one', 'RepositoryFormat7', 'one help')

        registry.register_metadir('two',

            'bzrlib.repofmt.knitrepo.RepositoryFormatKnit1',

            'two help',

            )

        registry.register_metadir('hidden', 'RepositoryFormat7', 'hidden help',

            hidden=True)

        registry.set_default('one')

        options = [option.RegistryOption('format', 'format help', registry,

                   str, value_switches=True, title='Formats')]

        parser = option.get_optparser(dict((o.name, o) for o in options))

        value = parser.format_option_help()

        self.assertContainsRe(value, 'format.*format help')

        self.assertContainsRe(value, 'one.*one help')

        self.assertContainsRe(value, 'Formats:\n *--format')

        self.assertNotContainsRe(value, 'hidden help')

    def test_iter_switches(self):

        opt = option.Option('hello', help='fg')

        self.assertEqual(list(opt.iter_switches()),

                         [('hello', None, None, 'fg')])

        opt = option.Option('hello', help='fg', type=int)

        self.assertEqual(list(opt.iter_switches()),

                         [('hello', None, 'ARG', 'fg')])

        opt = option.Option('hello', help='fg', type=int, argname='gar')

        self.assertEqual(list(opt.iter_switches()),

                         [('hello', None, 'GAR', 'fg')])

        registry = bzrdir.BzrDirFormatRegistry()

        registry.register_metadir('one', 'RepositoryFormat7', 'one help')

        registry.register_metadir('two',

                'bzrlib.repofmt.knitrepo.RepositoryFormatKnit1',

                'two help',

                )

        registry.set_default('one')

        opt = option.RegistryOption('format', 'format help', registry,

                                    value_switches=False)

        self.assertEqual(list(opt.iter_switches()),

                         [('format', None, 'ARG', 'format help')])

        opt = option.RegistryOption('format', 'format help', registry,

                                    value_switches=True)

        self.assertEqual(list(opt.iter_switches()),

                         [('format', None, 'ARG', 'format help'),

                          ('default', None, None, 'one help'),

                          ('one', None, None, 'one help'),

                          ('two', None, None, 'two help'),

                          ])

    def test_option_callback_bool(self):

        "Test booleans get True and False passed correctly to a callback."""

        cb_calls = []

        def cb(option, name, value, parser):

            cb_calls.append((option,name,value,parser))

        options = [option.Option('hello', custom_callback=cb)]

        opts, args = self.parse(options, ['--hello', '--no-hello'])

        self.assertEqual(2, len(cb_calls))

        opt,name,value,parser = cb_calls[0]

        self.assertEqual('hello', name)

        self.assertTrue(value)

        opt,name,value,parser = cb_calls[1]

        self.assertEqual('hello', name)

        self.assertFalse(value)

    def test_option_callback_str(self):

        """Test callbacks work for string options both long and short."""

        cb_calls = []

        def cb(option, name, value, parser):

            cb_calls.append((option,name,value,parser))

        options = [option.Option('hello', type=str, custom_callback=cb,

            short_name='h')]

        opts, args = self.parse(options, ['--hello', 'world', '-h', 'mars'])

        self.assertEqual(2, len(cb_calls))

        opt,name,value,parser = cb_calls[0]

        self.assertEqual('hello', name)

        self.assertEqual('world', value)

        opt,name,value,parser = cb_calls[1]

        self.assertEqual('hello', name)

        self.assertEqual('mars', value)

class TestListOptions(TestCase):

    """Tests for ListOption, used to specify lists on the command-line."""

    def parse(self, options, args):

        parser = option.get_optparser(dict((o.name, o) for o in options))

        return parser.parse_args(args)

    def test_list_option(self):

        options = [option.ListOption('hello', type=str)]

        opts, args = self.parse(options, ['--hello=world', '--hello=sailor'])

        self.assertEqual(['world', 'sailor'], opts.hello)

    def test_list_option_with_dash(self):

        options = [option.ListOption('with-dash', type=str)]

        opts, args = self.parse(options, ['--with-dash=world',

                                          '--with-dash=sailor'])

        self.assertEqual(['world', 'sailor'], opts.with_dash)

    def test_list_option_no_arguments(self):

        options = [option.ListOption('hello', type=str)]

        opts, args = self.parse(options, [])

        self.assertEqual([], opts.hello)

    def test_list_option_with_int_type(self):

        options = [option.ListOption('hello', type=int)]

        opts, args = self.parse(options, ['--hello=2', '--hello=3'])

        self.assertEqual([2, 3], opts.hello)

    def test_list_option_with_int_type_can_be_reset(self):

        options = [option.ListOption('hello', type=int)]

        opts, args = self.parse(options, ['--hello=2', '--hello=3',

                                          '--hello=-', '--hello=5'])

        self.assertEqual([5], opts.hello)

    def test_list_option_can_be_reset(self):

        """Passing an option of '-' to a list option should reset the list."""

        options = [option.ListOption('hello', type=str)]

        opts, args = self.parse(

            options, ['--hello=a', '--hello=b', '--hello=-', '--hello=c'])

        self.assertEqual(['c'], opts.hello)

    def test_option_callback_list(self):

        """Test callbacks work for list options."""

        cb_calls = []

        def cb(option, name, value, parser):

            # Note that the value is a reference so copy to keep it

            cb_calls.append((option,name,value[:],parser))

        options = [option.ListOption('hello', type=str, custom_callback=cb)]

        opts, args = self.parse(options, ['--hello=world', '--hello=mars',

            '--hello=-'])

        self.assertEqual(3, len(cb_calls))

        opt,name,value,parser = cb_calls[0]

        self.assertEqual('hello', name)

        self.assertEqual(['world'], value)

        opt,name,value,parser = cb_calls[1]

        self.assertEqual('hello', name)

        self.assertEqual(['world', 'mars'], value)

        opt,name,value,parser = cb_calls[2]

        self.assertEqual('hello', name)

        self.assertEqual([], value)

class TestOptionDefinitions(TestCase):

    """Tests for options in the Bazaar codebase."""

    def get_builtin_command_options(self):

        g = []

        for cmd_name in sorted(commands.all_command_names()):

            cmd = commands.get_cmd_object(cmd_name)

            for opt_name, opt in sorted(cmd.options().items()):

                g.append((cmd_name, opt))

        return g

    def test_global_options_used(self):

        # In the distant memory, options could only be declared globally.  Now

        # we prefer to declare them in the command, unless like -r they really

        # are used very widely with the exact same meaning.  So this checks

        # for any that should be garbage collected.

        g = dict(option.Option.OPTIONS.items())

        used_globals = {}

        msgs = []

        for cmd_name in sorted(commands.all_command_names()):

            cmd = commands.get_cmd_object(cmd_name)

            for option_or_name in sorted(cmd.takes_options):

                if not isinstance(option_or_name, basestring):

                    self.assertIsInstance(option_or_name, option.Option)

                elif not option_or_name in g:

                    msgs.append("apparent reference to undefined "

                        "global option %r from %r"

                        % (option_or_name, cmd))

                else:

                    used_globals.setdefault(option_or_name, []).append(cmd_name)

        unused_globals = set(g.keys()) - set(used_globals.keys())

        # not enforced because there might be plugins that use these globals

        ## for option_name in sorted(unused_globals):

        ##    msgs.append("unused global option %r" % option_name)

        ## for option_name, cmds in sorted(used_globals.items()):

        ##     if len(cmds) <= 1:

        ##         msgs.append("global option %r is only used by %r"

        ##                 % (option_name, cmds))

        if msgs:

            self.fail("problems with global option definitions:\n"

                    + '\n'.join(msgs))

    def test_option_grammar(self):

        msgs = []

        # Option help should be written in sentence form, and have a final

        # period and be all on a single line, because the display code will

        # wrap it.

        option_re = re.compile(r'^[A-Z][^\n]+\.$')

        for scope, opt in self.get_builtin_command_options():

            if not opt.help:

                msgs.append('%-16s %-16s %s' %

                       ((scope or 'GLOBAL'), opt.name, 'NO HELP'))

            elif not option_re.match(opt.help):

                msgs.append('%-16s %-16s %s' %

                        ((scope or 'GLOBAL'), opt.name, opt.help))

        if msgs:

            self.fail("The following options don't match the style guide:\n"

                    + '\n'.join(msgs))

    def test_is_hidden(self):

        registry = bzrdir.BzrDirFormatRegistry()

        registry.register_metadir('hidden', 'HiddenFormat',

            'hidden help text', hidden=True)

        registry.register_metadir('visible', 'VisibleFormat',

            'visible help text', hidden=False)

        format = option.RegistryOption('format', '', registry, str)

        self.assertTrue(format.is_hidden('hidden'))

        self.assertFalse(format.is_hidden('visible'))

    def test_option_custom_help(self):

        the_opt = option.Option.OPTIONS['help']

        orig_help = the_opt.help[:]

        my_opt = option.custom_help('help', 'suggest lottery numbers')

        # Confirm that my_opt has my help and the original is unchanged

        self.assertEqual('suggest lottery numbers', my_opt.help)

        self.assertEqual(orig_help, the_opt.help)

class TestVerboseQuietLinkage(TestCase):

    def check(self, parser, level, args):

        option._verbosity_level = 0

        opts, args = parser.parse_args(args)

        self.assertEqual(level, option._verbosity_level)

    def test_verbose_quiet_linkage(self):

        parser = option.get_optparser(option.Option.STD_OPTIONS)

        self.check(parser, 0, [])

        self.check(parser, 1, ['-v'])

        self.check(parser, 2, ['-v', '-v'])

        self.check(parser, -1, ['-q'])

        self.check(parser, -2, ['-qq'])

        self.check(parser, -1, ['-v', '-v', '-q'])

        self.check(parser, 2, ['-q', '-v', '-v'])

        self.check(parser, 0, ['--no-verbose'])

        self.check(parser, 0, ['-v', '-q', '--no-quiet'])