#

# Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

# All rights reserved.

# This component and the accompanying materials are made available

# under the terms of "Eclipse Public License v1.0"

# which accompanies this distribution, and is available

# at the URL "http://www.eclipse.org/legal/epl-v10.html".

#

# Initial Contributors:

# Nokia Corporation - initial contribution.

#

# Contributors:

#

# Description: 

#

"""

Test the import export functionality

"""

import unittest

import sys, os, shutil

ROOT_PATH = os.path.dirname(os.path.abspath(__file__))

from cone.public.api import Resource

from cone.storage import filestorage, zipstorage

from testautomation.base_testcase import BaseTestCase

from testautomation.unzip_file import unzip_file

def abspath(p):

    return os.path.normpath(os.path.join(ROOT_PATH, p))

DATA_ZIP = abspath("file_vs_zip_data.zip")

TEMP_DIR = abspath("temp/file_vs_zip")

EXPECTED = [

    # These two are not used every time

    ('folder',      'dir'),

    ('folder',      'empty2'),

    ('folder',      'dir/emptysub'),

    ('folder',      'empty'),

    ('folder',      'empty2/sub'),

    ('resource',    'root.txt'),

    ('resource',    'dir/test1.txt'),

    ('resource',    'dir/test2.txt'),

]

class TestFileStorageVsZipStorage(BaseTestCase):

    def setUp(self):

        pass

    def get_temp_zip_storage(self, path, empty=False):

        """

        Get a new zip storage located in the temp/ directory.

        @param path: Path of the storage zip file relative to the temp/ directory.

        @param empty: If False, the DATA_ZIP is copied to the location specified

            by 'path' and returned as a read-only storage. If True, a new writable

            empty storage is returned.

        """

        full_path = os.path.join(TEMP_DIR, path)

        if not empty:

            self.create_dir_for_file_path(full_path)

            shutil.copy2(DATA_ZIP, full_path)

            return zipstorage.ZipStorage(full_path, 'r')

        else:

            if os.path.exists(full_path):

                os.remove(full_path)

            return zipstorage.ZipStorage(full_path, 'w')

    def get_temp_file_storage(self, path, empty=False):

        """

        Get a new file storage located in the temp/ directory.

        @param path: Path of the storage directory relative to the temp/ directory.

        @param empty: If False, the DATA_ZIP is extracted to the location specified

            by 'path' and returned as a read-only storage. If True, a new writable

            empty storage is returned.

        """

        full_path = os.path.join(TEMP_DIR, path)

        if not empty:

            unzip_file(DATA_ZIP, full_path, delete_if_exists=True)

            return filestorage.FileStorage(full_path, 'r')

        else:

            self.recreate_dir(full_path)

            return filestorage.FileStorage(full_path, 'w')

    def assert_storage_contains_expected(self, storage, empty_folders):

        # Always list also empty folders, because empty_folders is False,

        # they should not have been exported in the first place

        resource_list = storage.list_resources('', recurse=True, empty_folders=True)

        expected = list(EXPECTED)

        # Remove empty folders from expected if necessary

        if not empty_folders:

            for i in reversed(xrange(len(expected))):

                if expected[i][0] == 'folder':

                    del expected[i]

        # If the actual list contains exactly 2 less entries, they are

        # probably the root folders that are not present in every case

        # (e.g. there is a resource 'my_dir/file.txt', so sometimes there

        # is a folder 'my_dir' in the resource list, but not always)

        if len(resource_list) == len(expected) - 2:

            del expected[0:2]

        # Check that there is the same amount of resources/folders

        self.assertEquals(len(expected), len(resource_list), "Expected %r, actual %r" % (expected, resource_list))

        # Check that all expected resources/folders are present in the storage

        for type, ref in expected:

            if type == 'resource':

                self.assertTrue(storage.is_resource(ref), "(%r, %r) expected, but not a resource" % (type, ref))

            elif type == 'folder':

                self.assertTrue(storage.is_folder(ref), "(%r, %r) expected, but not a folder" % (type, ref))

            else:

                raise RuntimeError("Invalid type field in expected data")

    def _run_test_storage_to_storage(self, source_storage, target_storage, empty_folders):

        try:

            # Check that the source storage contains all expected in the first place

            self.assert_storage_contains_expected(source_storage, True)

            # Export resources

            resources = source_storage.list_resources('', recurse=True, empty_folders=empty_folders)

            source_storage.export_resources(resources, target_storage, empty_folders=empty_folders)

            # Check that resources have been exported properly

            self.assert_storage_contains_expected(target_storage, empty_folders)

        finally:

            source_storage.close()

            target_storage.close()

    def test_export_file_to_file(self):

        self._run_test_storage_to_storage(

            source_storage  = self.get_temp_file_storage('f2f/source'),

            target_storage  = self.get_temp_file_storage('f2f/target', empty=True),

            empty_folders   = False)

        self._run_test_storage_to_storage(

            source_storage  = self.get_temp_file_storage('f2f/ef_source'),

            target_storage  = self.get_temp_file_storage('f2f/ef_target', empty=True),

            empty_folders   = True)

    def test_export_zip_to_zip(self):

        self._run_test_storage_to_storage(

            source_storage  = self.get_temp_zip_storage('z2z/source.zip'),

            target_storage  = self.get_temp_zip_storage('z2z/target.zip', empty=True),

            empty_folders   = False)

        self._run_test_storage_to_storage(

            source_storage  = self.get_temp_zip_storage('z2z/ef_source.zip'),

            target_storage  = self.get_temp_zip_storage('z2z/ef_target.zip', empty=True),

            empty_folders   = True)

    def test_export_zip_to_file(self):

        self._run_test_storage_to_storage(

            source_storage  = self.get_temp_zip_storage('z2f/source.zip'),

            target_storage  = self.get_temp_file_storage('z2f/target', empty=True),

            empty_folders   = False)

        self._run_test_storage_to_storage(

            source_storage  = self.get_temp_zip_storage('z2f/ef_source.zip'),

            target_storage  = self.get_temp_file_storage('z2f/ef_target', empty=True),

            empty_folders   = True)

if __name__ == '__main__':

      unittest.main()