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# Copyright (C) 2010 by 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
from bzrlib.tests import TestCase, TestCaseWithTransport, Feature
from bzrlib import commands
from StringIO import StringIO
from ..bashcomp import bash_completion_function
import os
import subprocess
class _BashFeature(Feature):
"""Feature testing whether a bash executable is available."""
bash_paths = ['/bin/bash', '/usr/bin/bash']
def __init__(self):
super(_BashFeature, self).__init__()
self.bash_path = None
def available(self):
if self.bash_path is not None:
return self.bash_path is not False
for path in self.bash_paths:
if os.access(path, os.X_OK):
self.bash_path = path
return True
self.bash_path = False
return False
def feature_name(self):
return 'bash'
BashFeature = _BashFeature()
class BashCompletionMixin(object):
"""Component for testing execution of a bash completion script."""
_test_needs_features = [BashFeature]
def complete(self, words, cword=-1, expect=None,
contains=[], omits=[]):
"""Perform a bash completion.
:param words: a list of words representing the current command.
:param cword: the current word to complete, defaults to the last one.
:param expect: an exact iterable of expected completions.
:param contains: an iterable of words required in the completion result.
:param omits: an iterable of words forbidden in the completion result.
"""
if self.script is None:
self.script = self.get_script()
proc = subprocess.Popen([BashFeature.bash_path, '--noprofile'],
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
if cword < 0:
cword = len(words) + cword
input = '%s\n' % self.script
input += ('COMP_WORDS=( %s )\n' %
' '.join(["'"+w.replace("'", "'\\''")+"'" for w in words]))
input += 'COMP_CWORD=%d\n' % cword
input += '%s\n' % getattr(self, 'script_name', '_bzr')
input += 'echo ${#COMPREPLY[*]}\n'
input += "IFS=$'\\n'\n"
input += 'echo "${COMPREPLY[*]}"\n'
(out, err) = proc.communicate(input)
if '' != err:
raise AssertionError('Unexpected error message:\n%s' % err)
self.assertEqual('', err, 'No messages to standard error')
#import sys
#print >>sys.stdout, '---\n%s\n---\n%s\n---\n' % (input, out)
lines = out.split('\n')
nlines = int(lines[0])
del lines[0]
self.assertEqual('', lines[-1], 'Newline at end')
del lines[-1]
if nlines == 0 and len(lines) == 1 and lines[0] == '':
del lines[0]
self.assertEqual(nlines, len(lines), 'No newlines in generated words')
res = set(lines)
if expect is not None:
self.assertEqual(set(expect), res)
missing = set(contains) - res
if missing:
raise AssertionError('Completion should contain %r but it has %r'
% (missing, res))
surplus = set(omits) & res
if surplus:
raise AssertionError('Completion should omit %r but it has %r'
% (surplus, res))
return res
def get_script(self):
out = StringIO()
bash_completion_function(out, function_only=True)
return out.getvalue()
class TestBashCompletion(TestCase, BashCompletionMixin):
"""Test bash completions that don't execute bzr."""
def __init__(self, methodName='testMethod'):
super(TestBashCompletion, self).__init__(methodName)
self.script = None
def setUp(self):
super(TestBashCompletion, self).setUp()
commands.install_bzr_command_hooks()
def test_simple_scipt(self):
"""Ensure that the test harness works as expected"""
self.script = """
_bzr() {
COMPREPLY=()
# add all words in reverse order, with some markup around them
for ((i = ${#COMP_WORDS[@]}; i > 0; --i)); do
COMPREPLY+=( "-${COMP_WORDS[i-1]}+" )
done
# and append the current word
COMPREPLY+=( "+${COMP_WORDS[COMP_CWORD]}-" )
}
"""
self.complete(['foo', '"bar', "'baz"], cword=1,
expect=["-'baz+", '-"bar+', '-foo+', '+"bar-'])
def test_cmd_ini(self):
c = self.complete(['bzr', 'ini'],
contains=['init', 'init-repo', 'init-repository'])
self.assertFalse('commit' in c)
def test_init_opts(self):
c = self.complete(['bzr', 'init', '-'],
contains=['-h', '--2a', '--format=2a'])
def test_global_opts(self):
c = self.complete(['bzr', '-', 'init'], cword=1,
contains=['--no-plugins', '-?'])
def test_commit_dashm(self):
c = self.complete(['bzr', 'commit', '-m'], expect=['-m'])
def test_status_negated(self):
c = self.complete(['bzr', 'status', '--n'],
contains=['--no-versioned', '--no-verbose'])
def test_init_format_any(self):
c = self.complete(['bzr', 'init', '--format', '=', 'directory'],
cword=3, contains=['1.9', '2a'])
def test_init_format_2(self):
c = self.complete(['bzr', 'init', '--format', '=', '2', 'directory'],
cword=4, contains=['2a'], omits=['1.9'])
class TestBashCompletionInvoking(TestCaseWithTransport, BashCompletionMixin):
"""Test bash completions that might execute bzr.
Only the syntax ``$(bzr ...`` is supported so far. The bzr command
will be replaced by the bzr instance running this selftest.
"""
def __init__(self, methodName='testMethod'):
super(TestBashCompletionInvoking, self).__init__(methodName)
self.script = None
def setUp(self):
super(TestBashCompletionInvoking, self).setUp()
commands.install_bzr_command_hooks()
def get_script(self):
s = super(TestBashCompletionInvoking, self).get_script()
return s.replace("$(bzr ", "$('%s' " % self.get_bzr_path())
def test_revspec_tag_all(self):
wt = self.make_branch_and_tree('.', format='2a')
wt.branch.tags.set_tag('tag1', 'null:')
wt.branch.tags.set_tag('tag2', 'null:')
wt.branch.tags.set_tag('3tag', 'null:')
self.complete(['bzr', 'log', '-r', 'tag', ':'],
expect=['tag1', 'tag2', '3tag'])
def test_revspec_tag_prefix(self):
wt = self.make_branch_and_tree('.', format='2a')
wt.branch.tags.set_tag('tag1', 'null:')
wt.branch.tags.set_tag('tag2', 'null:')
wt.branch.tags.set_tag('3tag', 'null:')
self.complete(['bzr', 'log', '-r', 'tag', ':', 't'],
expect=['tag1', 'tag2'])
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