# -*- coding: utf-8 -*-

##
## test_helpers.py
## Login : <uli@pu.smp.net>
## Started on  Sat Feb 12 14:39:42 2011 Uli Fouquet
## $Id$
## 
## Copyright (C) 2011 Uli Fouquet
## 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
##
import os
import shutil
import tempfile
import unittest
import doctest
from waeup.sirp.utils import helpers

from zope.interface import Interface, implements
class IFakeObject(Interface):
    """Some marker interface."""

class FakeObject(object):
    implements(IFakeObject)

class RemoveFileOrDirectoryTestCase(unittest.TestCase):

    def setUp(self):
        self.dirpath = tempfile.mkdtemp()
        self.filepath = os.path.join(self.dirpath, 'somefile')
        self.non_file = os.path.join(self.dirpath, 'nonfile')
        open(self.filepath, 'wb').write('Hi!')
        return

    def tearDown(self):
        if os.path.exists(self.dirpath):
            shutil.rmtree(self.dirpath)
        return

    def test_handle_not_existing_path(self):
        result = helpers.removeFileOrDirectory(self.non_file)
        self.assertTrue(result is None)
        return

    def test_handle_dir(self):
        helpers.removeFileOrDirectory(self.dirpath)
        self.assertFalse(
            os.path.exists(self.dirpath)
            )
        return

    def test_handle_file(self):
        helpers.removeFileOrDirectory(self.filepath)
        self.assertFalse(
            os.path.exists(self.filepath)
            )
        return

class CopyFileSystemTreeTestCase(unittest.TestCase):
    # Test edge cases of copyFileSystemTree().
    #
    # This is a typical case of tests not written as doctest as it is
    # normally not interesting for developers and we only want to make
    # sure everything works as expected.
    def setUp(self):
        self.existing_src = tempfile.mkdtemp()
        self.filepath = os.path.join(self.existing_src, 'somefile')
        open(self.filepath, 'wb').write('Hi!')
        self.existing_dst = tempfile.mkdtemp()
        self.not_existing_dir = tempfile.mkdtemp()
        shutil.rmtree(self.not_existing_dir)

        pass

    def tearDown(self):
        shutil.rmtree(self.existing_src)
        shutil.rmtree(self.existing_dst)
        pass

    def test_source_and_dst_existing(self):
        helpers.copyFileSystemTree(self.existing_src, self.existing_dst)
        self.assertTrue(
            os.path.exists(
                os.path.join(self.existing_dst, 'somefile')
                )
            )
        return

    def test_source_not_existing(self):
        self.assertRaises(
            ValueError,
            helpers.copyFileSystemTree,
            self.not_existing_dir,
            self.existing_dst
            )
        return

    def test_dest_not_existing(self):
        self.assertRaises(
            ValueError,
            helpers.copyFileSystemTree,
            self.existing_src,
            self.not_existing_dir
            )
        return

    def test_src_not_a_dir(self):
        self.assertRaises(
            ValueError,
            helpers.copyFileSystemTree,
            self.filepath,
            self.existing_dst
            )
        return

    def test_dst_not_a_dir(self):
        self.assertRaises(
            ValueError,
            helpers.copyFileSystemTree,
            self.existing_src,
            self.filepath
            )
        return

class ReST2HTMLTestCase(unittest.TestCase):

    def setUp(self):
        self.expected = u'<div class="document">\n\n\n<p>Some '
        self.expected += u'test with \xfcmlaut</p>\n</div>'
        return
    
    def test_ascii_umlauts(self):
        # Make sure we convert umlauts correctly to unicode.
        source = 'Some test with ümlaut'
        result = helpers.ReST2HTML(source)
        self.assertEqual(result, self.expected)

    def test_unicode_umlauts(self):
        # Make sure we convert umlauts correctly to unicode.
        source = u'Some test with ümlaut'
        result = helpers.ReST2HTML(source)
        self.assertEqual(result, self.expected)

    def test_unicode_output_from_ascii(self):
        source = 'Some test with ümlaut'
        self.assertTrue(isinstance(helpers.ReST2HTML(source), unicode))

    def test_unicode_output_from_unicode(self):
        source = u'Some test with ümlaut'
        self.assertTrue(isinstance(helpers.ReST2HTML(source), unicode))

        
class FactoryBaseTestCase(unittest.TestCase):

    def test_ifaces(self):
        # We test all relevant parts in the docstring. But the interfaces
        # method has to be tested to please the coverage report as well.
        factory = helpers.FactoryBase()
        factory.factory = FakeObject
        self.assertTrue(factory.getInterfaces()(IFakeObject))
        return
        
def test_suite():
    suite = unittest.TestSuite()
    # Register local test cases...
    for testcase in [
        ReST2HTMLTestCase,
        FactoryBaseTestCase,
        CopyFileSystemTreeTestCase,
        RemoveFileOrDirectoryTestCase,
        ]:
        suite.addTests(
            unittest.TestLoader().loadTestsFromTestCase(testcase)
            )
    # Add tests from docstrings in helpers.py...
    suite.addTests(
        doctest.DocTestSuite(
            helpers,
            optionflags = doctest.ELLIPSIS + doctest.REPORT_NDIFF,
            )
        )
    return suite

if __name__ == '__main__':
    unittest.main(defaultTest='test_suite')