Example of refactoring using rope library.

tools/telemetry/third_party/rope/ropetest/projecttest.py

Index: tools/telemetry/third_party/rope/ropetest/projecttest.py
diff --git a/tools/telemetry/third_party/rope/ropetest/projecttest.py b/tools/telemetry/third_party/rope/ropetest/projecttest.py
new file mode 100644
index 0000000000000000000000000000000000000000..f52648f8313d8dd7efc2872a2fc0a2185e4588f6
--- /dev/null
+++ b/tools/telemetry/third_party/rope/ropetest/projecttest.py
@@ -0,0 +1,1038 @@
+import os
+import os.path
+import shutil
+try:
+    import unittest2 as unittest
+except ImportError:
+    import unittest
+
+from rope.base.exceptions import RopeError, ResourceNotFoundError
+from rope.base.fscommands import FileSystemCommands
+from rope.base.libutils import path_to_resource
+from rope.base.project import Project, NoProject, _realpath
+from ropetest import testutils
+from rope.base.resourceobserver import FilteredResourceObserver
+
+
+class ProjectTest(unittest.TestCase):
+
+    def setUp(self):
+        unittest.TestCase.setUp(self)
+        self.project = testutils.sample_project(foldername='sampleproject',
+                                                ropefolder=None)
+        self.project_root = self.project.address
+        self._make_sample_project()
+        self.no_project = NoProject()
+
+    def _make_sample_project(self):
+        self.sample_file = 'sample_file.txt'
+        self.sample_path = os.path.join(self.project_root, 'sample_file.txt')
+        if not os.path.exists(self.project_root):
+            os.mkdir(self.project_root)
+        self.sample_folder = 'sample_folder'
+        os.mkdir(os.path.join(self.project_root, self.sample_folder))
+        sample = open(self.sample_path, 'w')
+        sample.write('sample text\n')
+        sample.close()
+
+    def tearDown(self):
+        testutils.remove_project(self.project)
+        unittest.TestCase.tearDown(self)
+
+    def test_project_creation(self):
+        self.assertEquals(_realpath(self.project_root),
+                          self.project.address)
+
+    def test_getting_project_file(self):
+        project_file = self.project.get_resource(self.sample_file)
+        self.assertTrue(project_file is not None)
+
+    def test_project_file_reading(self):
+        projectFile = self.project.get_resource(self.sample_file)
+        self.assertEquals('sample text\n', projectFile.read())
+
+    def test_getting_not_existing_project_file(self):
+        with self.assertRaises(ResourceNotFoundError):
+            self.project.get_resource('DoesNotExistFile.txt')
+
+    def test_writing_in_project_files(self):
+        project_file = self.project.get_resource(self.sample_file)
+        project_file.write('another text\n')
+        self.assertEquals('another text\n', project_file.read())
+
+    def test_creating_files(self):
+        project_file = 'newfile.txt'
+        self.project.root.create_file(project_file)
+        newFile = self.project.get_resource(project_file)
+        self.assertTrue(newFile is not None)
+
+    def test_creating_files_that_already_exist(self):
+        with self.assertRaises(RopeError):
+            self.project.root.create_file(self.sample_file)
+
+    def test_making_root_folder_if_it_does_not_exist(self):
+        project = Project('sampleproject2')
+        try:
+            self.assertTrue(os.path.exists('sampleproject2') and
+                            os.path.isdir('sampleproject2'))
+        finally:
+            testutils.remove_project(project)
+
+    def test_failure_when_project_root_exists_and_is_a_file(self):
+        project_root = 'sampleproject2'
+        try:
+            open(project_root, 'w').close()
+            with self.assertRaises(RopeError):
+                Project(project_root)
+        finally:
+            testutils.remove_recursively(project_root)
+
+    def test_creating_folders(self):
+        folderName = 'SampleFolder'
+        self.project.root.create_folder(folderName)
+        folderPath = os.path.join(self.project.address, folderName)
+        self.assertTrue(os.path.exists(folderPath) and
+                        os.path.isdir(folderPath))
+
+    def test_making_folder_that_already_exists(self):
+        folderName = 'SampleFolder'
+        with self.assertRaises(RopeError):
+            self.project.root.create_folder(folderName)
+            self.project.root.create_folder(folderName)
+
+    def test_failing_if_creating_folder_while_file_already_exists(self):
+        folderName = 'SampleFolder'
+        with self.assertRaises(RopeError):
+            self.project.root.create_file(folderName)
+            self.project.root.create_folder(folderName)
+
+    def test_creating_file_inside_folder(self):
+        folder_name = 'sampleFolder'
+        file_name = 'sample2.txt'
+        file_path = folder_name + '/' + file_name
+        parent_folder = self.project.root.create_folder(folder_name)
+        parent_folder.create_file(file_name)
+        file = self.project.get_resource(file_path)
+        file.write('sample notes')
+        self.assertEquals(file_path, file.path)
+        self.assertEquals('sample notes',
+                          open(os.path.join(self.project.address,
+                          file_path)).read())
+
+    def test_failing_when_creating_file_inside_non_existent_folder(self):
+        with self.assertRaises(ResourceNotFoundError):
+            self.project.root.create_file('NonexistentFolder/SomeFile.txt')
+
+    def test_nested_directories(self):
+        folder_name = 'SampleFolder'
+        parent = self.project.root.create_folder(folder_name)
+        parent.create_folder(folder_name)
+        folder_path = os.path.join(self.project.address,
+                                   folder_name, folder_name)
+        self.assertTrue(os.path.exists(folder_path) and
+                        os.path.isdir(folder_path))
+
+    def test_removing_files(self):
+        self.assertTrue(os.path.exists(self.sample_path))
+        self.project.get_resource(self.sample_file).remove()
+        self.assertFalse(os.path.exists(self.sample_path))
+
+    def test_removing_files_invalidating_in_project_resource_pool(self):
+        root_folder = self.project.root
+        my_file = root_folder.create_file('my_file.txt')
+        my_file.remove()
+        self.assertFalse(root_folder.has_child('my_file.txt'))
+
+    def test_removing_directories(self):
+        self.assertTrue(os.path.exists(os.path.join(self.project.address,
+                                                    self.sample_folder)))
+        self.project.get_resource(self.sample_folder).remove()
+        self.assertFalse(os.path.exists(os.path.join(self.project.address,
+                                                     self.sample_folder)))
+
+    def test_removing_non_existent_files(self):
+        with self.assertRaises(ResourceNotFoundError):
+            self.project.get_resource('NonExistentFile.txt').remove()
+
+    def test_removing_nested_files(self):
+        file_name = self.sample_folder + '/sample_file.txt'
+        self.project.root.create_file(file_name)
+        self.project.get_resource(file_name).remove()
+        self.assertTrue(os.path.exists(os.path.join(self.project.address,
+                                                    self.sample_folder)))
+        self.assertTrue(not os.path.exists(os.path.join(self.project.address,
+                        file_name)))
+
+    def test_file_get_name(self):
+        file = self.project.get_resource(self.sample_file)
+        self.assertEquals(self.sample_file, file.name)
+        file_name = 'nestedFile.txt'
+        parent = self.project.get_resource(self.sample_folder)
+        filePath = self.sample_folder + '/' + file_name
+        parent.create_file(file_name)
+        nestedFile = self.project.get_resource(filePath)
+        self.assertEquals(file_name, nestedFile.name)
+
+    def test_folder_get_name(self):
+        folder = self.project.get_resource(self.sample_folder)
+        self.assertEquals(self.sample_folder, folder.name)
+
+    def test_file_get_path(self):
+        file = self.project.get_resource(self.sample_file)
+        self.assertEquals(self.sample_file, file.path)
+        fileName = 'nestedFile.txt'
+        parent = self.project.get_resource(self.sample_folder)
+        filePath = self.sample_folder + '/' + fileName
+        parent.create_file(fileName)
+        nestedFile = self.project.get_resource(filePath)
+        self.assertEquals(filePath, nestedFile.path)
+
+    def test_folder_get_path(self):
+        folder = self.project.get_resource(self.sample_folder)
+        self.assertEquals(self.sample_folder, folder.path)
+
+    def test_is_folder(self):
+        self.assertTrue(self.project.get_resource(
+            self.sample_folder).is_folder())
+        self.assertTrue(not self.project.get_resource(
+            self.sample_file).is_folder())
+
+    def testget_children(self):
+        children = self.project.get_resource(self.sample_folder).get_children()
+        self.assertEquals([], children)
+
+    def test_nonempty_get_children(self):
+        file_name = 'nestedfile.txt'
+        filePath = self.sample_folder + '/' + file_name
+        parent = self.project.get_resource(self.sample_folder)
+        parent.create_file(file_name)
+        children = parent.get_children()
+        self.assertEquals(1, len(children))
+        self.assertEquals(filePath, children[0].path)
+
+    def test_nonempty_get_children2(self):
+        file_name = 'nestedfile.txt'
+        folder_name = 'nestedfolder.txt'
+        filePath = self.sample_folder + '/' + file_name
+        folderPath = self.sample_folder + '/' + folder_name
+        parent = self.project.get_resource(self.sample_folder)
+        parent.create_file(file_name)
+        parent.create_folder(folder_name)
+        children = parent.get_children()
+        self.assertEquals(2, len(children))
+        self.assertTrue(filePath == children[0].path or
+                        filePath == children[1].path)
+        self.assertTrue(folderPath == children[0].path or
+                        folderPath == children[1].path)
+
+    def test_does_not_fail_for_permission_denied(self):
+        bad_dir = os.path.join(self.sample_folder, "bad_dir")
+        os.makedirs(bad_dir)
+        self.addCleanup(shutil.rmtree, bad_dir)
+        os.chmod(bad_dir, 0o000)
+        try:
+            parent = self.project.get_resource(self.sample_folder)
+
+            parent.get_children()
+
+        finally:
+            os.chmod(bad_dir, 0o755)
+
+    def test_getting_files(self):
+        files = self.project.root.get_files()
+        self.assertEquals(1, len(files))
+        self.assertTrue(self.project.get_resource(self.sample_file) in files)
+
+    def test_getting_folders(self):
+        folders = self.project.root.get_folders()
+        self.assertEquals(1, len(folders))
+        self.assertTrue(self.project.get_resource(
+            self.sample_folder) in folders)
+
+    def test_nested_folder_get_files(self):
+        parent = self.project.root.create_folder('top')
+        parent.create_file('file1.txt')
+        parent.create_file('file2.txt')
+        files = parent.get_files()
+        self.assertEquals(2, len(files))
+        self.assertTrue(self.project.get_resource('top/file2.txt') in files)
+        self.assertEquals(0, len(parent.get_folders()))
+
+    def test_nested_folder_get_folders(self):
+        parent = self.project.root.create_folder('top')
+        parent.create_folder('dir1')
+        parent.create_folder('dir2')
+        folders = parent.get_folders()
+        self.assertEquals(2, len(folders))
+        self.assertTrue(self.project.get_resource('top/dir1') in folders)
+        self.assertEquals(0, len(parent.get_files()))
+
+    def test_root_folder(self):
+        root_folder = self.project.root
+        self.assertEquals(2, len(root_folder.get_children()))
+        self.assertEquals('', root_folder.path)
+        self.assertEquals('', root_folder.name)
+
+    def test_get_all_files(self):
+        files = tuple(self.project.get_files())
+        self.assertEquals(1, len(files))
+        self.assertEquals(self.sample_file, files[0].name)
+
+    def test_get_all_files_after_changing(self):
+        self.assertEquals(1, len(self.project.get_files()))
+        myfile = self.project.root.create_file('myfile.txt')
+        self.assertEquals(2, len(self.project.get_files()))
+        myfile.move('newfile.txt')
+        self.assertEquals(2, len(self.project.get_files()))
+        self.project.get_file('newfile.txt').remove()
+        self.assertEquals(1, len(self.project.get_files()))
+
+    def test_multifile_get_all_files(self):
+        fileName = 'nestedFile.txt'
+        parent = self.project.get_resource(self.sample_folder)
+        parent.create_file(fileName)
+        files = list(self.project.get_files())
+        self.assertEquals(2, len(files))
+        self.assertTrue(fileName == files[0].name or fileName == files[1].name)
+
+    def test_ignoring_dot_pyc_files_in_get_files(self):
+        root = self.project.address
+        src_folder = os.path.join(root, 'src')
+        os.mkdir(src_folder)
+        test_pyc = os.path.join(src_folder, 'test.pyc')
+        open(test_pyc, 'w').close()
+        for x in self.project.get_files():
+            self.assertNotEquals('src/test.pyc', x.path)
+
+    def test_folder_creating_files(self):
+        projectFile = 'NewFile.txt'
+        self.project.root.create_file(projectFile)
+        new_file = self.project.get_resource(projectFile)
+        self.assertTrue(new_file is not None and not new_file.is_folder())
+
+    def test_folder_creating_nested_files(self):
+        project_file = 'NewFile.txt'
+        parent_folder = self.project.get_resource(self.sample_folder)
+        parent_folder.create_file(project_file)
+        new_file = self.project.get_resource(self.sample_folder
+                                             + '/' + project_file)
+        self.assertTrue(new_file is not None and not new_file.is_folder())
+
+    def test_folder_creating_files2(self):
+        projectFile = 'newfolder'
+        self.project.root.create_folder(projectFile)
+        new_folder = self.project.get_resource(projectFile)
+        self.assertTrue(new_folder is not None and new_folder.is_folder())
+
+    def test_folder_creating_nested_files2(self):
+        project_file = 'newfolder'
+        parent_folder = self.project.get_resource(self.sample_folder)
+        parent_folder.create_folder(project_file)
+        new_folder = self.project.get_resource(self.sample_folder
+                                               + '/' + project_file)
+        self.assertTrue(new_folder is not None and new_folder.is_folder())
+
+    def test_folder_get_child(self):
+        folder = self.project.root
+        folder.create_file('myfile.txt')
+        folder.create_folder('myfolder')
+        self.assertEquals(self.project.get_resource('myfile.txt'),
+                          folder.get_child('myfile.txt'))
+        self.assertEquals(self.project.get_resource('myfolder'),
+                          folder.get_child('myfolder'))
+
+    def test_folder_get_child_nested(self):
+        root = self.project.root
+        folder = root.create_folder('myfolder')
+        folder.create_file('myfile.txt')
+        folder.create_folder('myfolder')
+        self.assertEquals(self.project.get_resource('myfolder/myfile.txt'),
+                          folder.get_child('myfile.txt'))
+        self.assertEquals(self.project.get_resource('myfolder/myfolder'),
+                          folder.get_child('myfolder'))
+
+    def test_project_root_is_root_folder(self):
+        self.assertEquals('', self.project.root.path)
+
+    def test_moving_files(self):
+        root_folder = self.project.root
+        my_file = root_folder.create_file('my_file.txt')
+        my_file.move('my_other_file.txt')
+        self.assertFalse(my_file.exists())
+        root_folder.get_child('my_other_file.txt')
+
+    def test_moving_folders(self):
+        root_folder = self.project.root
+        my_folder = root_folder.create_folder('my_folder')
+        my_file = my_folder.create_file('my_file.txt')
+        my_folder.move('new_folder')
+        self.assertFalse(root_folder.has_child('my_folder'))
+        self.assertFalse(my_file.exists())
+        self.assertTrue(root_folder.get_child('new_folder') is not None)
+
+    def test_moving_destination_folders(self):
+        root_folder = self.project.root
+        my_folder = root_folder.create_folder('my_folder')
+        my_file = root_folder.create_file('my_file.txt')
+        my_file.move('my_folder')
+        self.assertFalse(root_folder.has_child('my_file.txt'))
+        self.assertFalse(my_file.exists())
+        my_folder.get_child('my_file.txt')
+
+    def test_moving_files_and_resource_objects(self):
+        root_folder = self.project.root
+        my_file = root_folder.create_file('my_file.txt')
+        old_hash = hash(my_file)
+        my_file.move('my_other_file.txt')
+        self.assertEquals(old_hash, hash(my_file))
+
+    def test_file_encoding_reading(self):
+        sample_file = self.project.root.create_file('my_file.txt')
+        contents = u'# -*- coding: utf-8 -*-\n' \
+            '#\N{LATIN SMALL LETTER I WITH DIAERESIS}\n'
+        file = open(sample_file.real_path, 'w')
+        file.write(contents.encode('utf-8'))
+        file.close()
+        self.assertEquals(contents, sample_file.read())
+
+    def test_file_encoding_writing(self):
+        sample_file = self.project.root.create_file('my_file.txt')
+        contents = u'# -*- coding: utf-8 -*-\n' \
+            '\N{LATIN SMALL LETTER I WITH DIAERESIS}\n'
+        sample_file.write(contents)
+        self.assertEquals(contents, sample_file.read())
+
+    def test_using_utf8_when_writing_in_case_of_errors(self):
+        sample_file = self.project.root.create_file('my_file.txt')
+        contents = u'\n\N{LATIN SMALL LETTER I WITH DIAERESIS}\n'
+        sample_file.write(contents)
+        self.assertEquals(contents, sample_file.read())
+
+    def test_encoding_declaration_in_the_second_line(self):
+        sample_file = self.project.root.create_file('my_file.txt')
+        contents = '\n# -*- coding: latin-1 -*-\n\xa9\n'
+        file = open(sample_file.real_path, 'wb')
+        file.write(contents)
+        file.close()
+        self.assertEquals(contents, sample_file.read().encode('latin-1'))
+
+    def test_read_bytes(self):
+        sample_file = self.project.root.create_file('my_file.txt')
+        contents = '\n# -*- coding: latin-1 -*-\n\xa9\n'
+        file = open(sample_file.real_path, 'wb')
+        file.write(contents)
+        file.close()
+        self.assertEquals(contents, sample_file.read_bytes())
+
+    # TODO: Detecting utf-16 encoding
+    def xxx_test_using_utf16(self):
+        sample_file = self.project.root.create_file('my_file.txt')
+        contents = '# -*- coding: utf-16 -*-\n# This is a sample file ...\n'
+        file = open(sample_file.real_path, 'w')
+        file.write(contents.encode('utf-16'))
+        file.close()
+        sample_file.write(contents)
+        self.assertEquals(contents, sample_file.read())
+
+    # XXX: supporting utf_8_sig
+    def xxx_test_file_encoding_reading_for_notepad_styles(self):
+        sample_file = self.project.root.create_file('my_file.txt')
+        contents = u'#\N{LATIN SMALL LETTER I WITH DIAERESIS}\n'
+        file = open(sample_file.real_path, 'w')
+        # file.write('\xef\xbb\xbf')
+        file.write(contents.encode('utf-8-sig'))
+        file.close()
+        self.assertEquals(contents, sample_file.read())
+
+    def test_using_project_get_file(self):
+        myfile = self.project.get_file(self.sample_file)
+        self.assertTrue(myfile.exists())
+
+    def test_using_file_create(self):
+        myfile = self.project.get_file('myfile.txt')
+        self.assertFalse(myfile.exists())
+        myfile.create()
+        self.assertTrue(myfile.exists())
+        self.assertFalse(myfile.is_folder())
+
+    def test_using_folder_create(self):
+        myfolder = self.project.get_folder('myfolder')
+        self.assertFalse(myfolder.exists())
+        myfolder.create()
+        self.assertTrue(myfolder.exists())
+        self.assertTrue(myfolder.is_folder())
+
+    def test_exception_when_creating_twice(self):
+        with self.assertRaises(RopeError):
+            myfile = self.project.get_file('myfile.txt')
+            myfile.create()
+            myfile.create()
+
+    def test_exception_when_parent_does_not_exist(self):
+        with self.assertRaises(ResourceNotFoundError):
+            myfile = self.project.get_file('myfolder/myfile.txt')
+            myfile.create()
+
+    def test_simple_path_to_resource(self):
+        myfile = self.project.root.create_file('myfile.txt')
+        self.assertEquals(myfile, path_to_resource(self.project,
+                                                   myfile.real_path))
+        self.assertEquals(myfile, path_to_resource(
+                          self.project, myfile.real_path, type='file'))
+        myfolder = self.project.root.create_folder('myfolder')
+        self.assertEquals(myfolder, path_to_resource(self.project,
+                                                     myfolder.real_path))
+        self.assertEquals(myfolder, path_to_resource(
+                          self.project, myfolder.real_path, type='folder'))
+
+    @testutils.run_only_for_unix
+    def test_ignoring_symlinks_inside_project(self):
+        project2 = testutils.sample_project(folder_name='sampleproject2')
+        mod = project2.root.create_file('mod.py')
+        try:
+            path = os.path.join(self.project.address, 'linkedfile.txt')
+            os.symlink(mod.real_path, path)
+            files = self.project.root.get_files()
+            self.assertEquals(1, len(files))
+        finally:
+            testutils.remove_project(project2)
+
+    def test_getting_empty_source_folders(self):
+        self.assertEquals([], self.project.get_source_folders())
+
+    def test_root_source_folder(self):
+        self.project.root.create_file('sample.py')
+        source_folders = self.project.get_source_folders()
+        self.assertEquals(1, len(source_folders))
+        self.assertTrue(self.project.root in source_folders)
+
+    def test_root_source_folder2(self):
+        self.project.root.create_file('mod1.py')
+        self.project.root.create_file('mod2.py')
+        source_folders = self.project.get_source_folders()
+        self.assertEquals(1, len(source_folders))
+        self.assertTrue(self.project.root in source_folders)
+
+    def test_src_source_folder(self):
+        src = self.project.root.create_folder('src')
+        src.create_file('sample.py')
+        source_folders = self.project.get_source_folders()
+        self.assertEquals(1, len(source_folders))
+        self.assertTrue(self.project.get_resource('src') in source_folders)
+
+    def test_packages(self):
+        src = self.project.root.create_folder('src')
+        pkg = src.create_folder('package')
+        pkg.create_file('__init__.py')
+        source_folders = self.project.get_source_folders()
+        self.assertEquals(1, len(source_folders))
+        self.assertTrue(src in source_folders)
+
+    def test_multi_source_folders(self):
+        src = self.project.root.create_folder('src')
+        package = src.create_folder('package')
+        package.create_file('__init__.py')
+        test = self.project.root.create_folder('test')
+        test.create_file('alltests.py')
+        source_folders = self.project.get_source_folders()
+        self.assertEquals(2, len(source_folders))
+        self.assertTrue(src in source_folders)
+        self.assertTrue(test in source_folders)
+
+    def test_multi_source_folders2(self):
+        testutils.create_module(self.project, 'mod1')
+        src = self.project.root.create_folder('src')
+        package = testutils.create_package(self.project, 'package', src)
+        testutils.create_module(self.project, 'mod2', package)
+        source_folders = self.project.get_source_folders()
+        self.assertEquals(2, len(source_folders))
+        self.assertTrue(self.project.root in source_folders and
+                        src in source_folders)
+
+
+class ResourceObserverTest(unittest.TestCase):
+
+    def setUp(self):
+        super(ResourceObserverTest, self).setUp()
+        self.project = testutils.sample_project()
+
+    def tearDown(self):
+        testutils.remove_project(self.project)
+        super(ResourceObserverTest, self).tearDown()
+
+    def test_resource_change_observer(self):
+        sample_file = self.project.root.create_file('my_file.txt')
+        sample_file.write('a sample file version 1')
+        sample_observer = _SampleObserver()
+        self.project.add_observer(sample_observer)
+        sample_file.write('a sample file version 2')
+        self.assertEquals(1, sample_observer.change_count)
+        self.assertEquals(sample_file, sample_observer.last_changed)
+
+    def test_resource_change_observer_after_removal(self):
+        sample_file = self.project.root.create_file('my_file.txt')
+        sample_file.write('text')
+        sample_observer = _SampleObserver()
+        self.project.add_observer(FilteredResourceObserver(sample_observer,
+                                                           [sample_file]))
+        sample_file.remove()
+        self.assertEquals(1, sample_observer.change_count)
+        self.assertEquals(sample_file, sample_observer.last_removed)
+
+    def test_resource_change_observer2(self):
+        sample_file = self.project.root.create_file('my_file.txt')
+        sample_observer = _SampleObserver()
+        self.project.add_observer(sample_observer)
+        self.project.remove_observer(sample_observer)
+        sample_file.write('a sample file version 2')
+        self.assertEquals(0, sample_observer.change_count)
+
+    def test_resource_change_observer_for_folders(self):
+        root_folder = self.project.root
+        my_folder = root_folder.create_folder('my_folder')
+        my_folder_observer = _SampleObserver()
+        root_folder_observer = _SampleObserver()
+        self.project.add_observer(
+            FilteredResourceObserver(my_folder_observer, [my_folder]))
+        self.project.add_observer(
+            FilteredResourceObserver(root_folder_observer, [root_folder]))
+        my_file = my_folder.create_file('my_file.txt')
+        self.assertEquals(1, my_folder_observer.change_count)
+        my_file.move('another_file.txt')
+        self.assertEquals(2, my_folder_observer.change_count)
+        self.assertEquals(1, root_folder_observer.change_count)
+        self.project.get_resource('another_file.txt').remove()
+        self.assertEquals(2, my_folder_observer.change_count)
+        self.assertEquals(2, root_folder_observer.change_count)
+
+    def test_resource_change_observer_after_moving(self):
+        sample_file = self.project.root.create_file('my_file.txt')
+        sample_observer = _SampleObserver()
+        self.project.add_observer(sample_observer)
+        sample_file.move('new_file.txt')
+        self.assertEquals(1, sample_observer.change_count)
+        self.assertEquals((sample_file,
+                          self.project.get_resource('new_file.txt')),
+                          sample_observer.last_moved)
+
+    def test_revalidating_files(self):
+        root = self.project.root
+        my_file = root.create_file('my_file.txt')
+        sample_observer = _SampleObserver()
+        self.project.add_observer(FilteredResourceObserver(sample_observer,
+                                                           [my_file]))
+        os.remove(my_file.real_path)
+        self.project.validate(root)
+        self.assertEquals(my_file, sample_observer.last_removed)
+        self.assertEquals(1, sample_observer.change_count)
+
+    def test_revalidating_files_and_no_changes2(self):
+        root = self.project.root
+        my_file = root.create_file('my_file.txt')
+        sample_observer = _SampleObserver()
+        self.project.add_observer(FilteredResourceObserver(sample_observer,
+                                                           [my_file]))
+        self.project.validate(root)
+        self.assertEquals(None, sample_observer.last_moved)
+        self.assertEquals(0, sample_observer.change_count)
+
+    def test_revalidating_folders(self):
+        root = self.project.root
+        my_folder = root.create_folder('myfolder')
+        my_file = my_folder.create_file('myfile.txt')  # noqa
+        sample_observer = _SampleObserver()
+        self.project.add_observer(FilteredResourceObserver(sample_observer,
+                                                           [my_folder]))
+        testutils.remove_recursively(my_folder.real_path)
+        self.project.validate(root)
+        self.assertEquals(my_folder, sample_observer.last_removed)
+        self.assertEquals(1, sample_observer.change_count)
+
+    def test_removing_and_adding_resources_to_filtered_observer(self):
+        my_file = self.project.root.create_file('my_file.txt')
+        sample_observer = _SampleObserver()
+        filtered_observer = FilteredResourceObserver(sample_observer)
+        self.project.add_observer(filtered_observer)
+        my_file.write('1')
+        self.assertEquals(0, sample_observer.change_count)
+        filtered_observer.add_resource(my_file)
+        my_file.write('2')
+        self.assertEquals(1, sample_observer.change_count)
+        filtered_observer.remove_resource(my_file)
+        my_file.write('3')
+        self.assertEquals(1, sample_observer.change_count)
+
+    def test_validation_and_changing_files(self):
+        my_file = self.project.root.create_file('my_file.txt')
+        sample_observer = _SampleObserver()
+        timekeeper = _MockChangeIndicator()
+        filtered_observer = FilteredResourceObserver(
+            sample_observer, [my_file], timekeeper=timekeeper)
+        self.project.add_observer(filtered_observer)
+        self._write_file(my_file.real_path)
+        timekeeper.set_indicator(my_file, 1)
+        self.project.validate(self.project.root)
+        self.assertEquals(1, sample_observer.change_count)
+
+    def test_validation_and_changing_files2(self):
+        my_file = self.project.root.create_file('my_file.txt')
+        sample_observer = _SampleObserver()
+        timekeeper = _MockChangeIndicator()
+        self.project.add_observer(FilteredResourceObserver(
+                                  sample_observer, [my_file],
+                                  timekeeper=timekeeper))
+        timekeeper.set_indicator(my_file, 1)
+        my_file.write('hey')
+        self.assertEquals(1, sample_observer.change_count)
+        self.project.validate(self.project.root)
+        self.assertEquals(1, sample_observer.change_count)
+
+    def test_not_reporting_multiple_changes_to_folders(self):
+        root = self.project.root
+        file1 = root.create_file('file1.txt')
+        file2 = root.create_file('file2.txt')
+        sample_observer = _SampleObserver()
+        self.project.add_observer(FilteredResourceObserver(
+                                  sample_observer, [root, file1, file2]))
+        os.remove(file1.real_path)
+        os.remove(file2.real_path)
+        self.assertEquals(0, sample_observer.change_count)
+        self.project.validate(self.project.root)
+        self.assertEquals(3, sample_observer.change_count)
+
+    def _write_file(self, path):
+        my_file = open(path, 'w')
+        my_file.write('\n')
+        my_file.close()
+
+    def test_moving_and_being_interested_about_a_folder_and_a_child(self):
+        my_folder = self.project.root.create_folder('my_folder')
+        my_file = my_folder.create_file('my_file.txt')
+        sample_observer = _SampleObserver()
+        filtered_observer = FilteredResourceObserver(
+            sample_observer, [my_folder, my_file])
+        self.project.add_observer(filtered_observer)
+        my_folder.move('new_folder')
+        self.assertEquals(2, sample_observer.change_count)
+
+    def test_contains_for_folders(self):
+        folder1 = self.project.root.create_folder('folder')
+        folder2 = self.project.root.create_folder('folder2')
+        self.assertFalse(folder1.contains(folder2))
+
+    def test_validating_when_created(self):
+        root = self.project.root
+        my_file = self.project.get_file('my_file.txt')
+        sample_observer = _SampleObserver()
+        self.project.add_observer(FilteredResourceObserver(sample_observer,
+                                                           [my_file]))
+        open(my_file.real_path, 'w').close()
+        self.project.validate(root)
+        self.assertEquals(my_file, sample_observer.last_created)
+        self.assertEquals(1, sample_observer.change_count)
+
+    def test_validating_twice_when_created(self):
+        root = self.project.root
+        my_file = self.project.get_file('my_file.txt')
+        sample_observer = _SampleObserver()
+        self.project.add_observer(FilteredResourceObserver(sample_observer,
+                                                           [my_file]))
+        open(my_file.real_path, 'w').close()
+        self.project.validate(root)
+        self.project.validate(root)
+        self.assertEquals(my_file, sample_observer.last_created)
+        self.assertEquals(1, sample_observer.change_count)
+
+    def test_changes_and_adding_resources(self):
+        root = self.project.root  # noqa
+        file1 = self.project.get_file('file1.txt')
+        file2 = self.project.get_file('file2.txt')
+        file1.create()
+        sample_observer = _SampleObserver()
+        self.project.add_observer(FilteredResourceObserver(sample_observer,
+                                                           [file1, file2]))
+        file1.move(file2.path)
+        self.assertEquals(2, sample_observer.change_count)
+        self.assertEquals(file2, sample_observer.last_created)
+        self.assertEquals((file1, file2), sample_observer.last_moved)
+
+    def test_validating_get_files_list(self):
+        root = self.project.root  # noqa
+        self.assertEquals(0, len(self.project.get_files()))
+        file = open(os.path.join(self.project.address, 'myfile.txt'), 'w')
+        file.close()
+        self.project.validate()
+        self.assertEquals(1, len(self.project.get_files()))
+
+    def test_clear_observered_resources_for_filtered_observers(self):
+        sample_file = self.project.root.create_file('myfile.txt')
+        sample_observer = _SampleObserver()
+        filtered = FilteredResourceObserver(sample_observer)
+        self.project.add_observer(filtered)
+        filtered.add_resource(sample_file)
+        filtered.clear_resources()
+        sample_file.write('1')
+        self.assertEquals(0, sample_observer.change_count)
+
+
+class _MockChangeIndicator(object):
+
+    def __init__(self):
+        self.times = {}
+
+    def set_indicator(self, resource, time):
+        self.times[resource] = time
+
+    def get_indicator(self, resource):
+        return self.times.get(resource, 0)
+
+
+class _SampleObserver(object):
+
+    def __init__(self):
+        self.change_count = 0
+        self.last_changed = None
+        self.last_moved = None
+        self.last_created = None
+        self.last_removed = None
+
+    def resource_changed(self, resource):
+        self.last_changed = resource
+        self.change_count += 1
+
+    def resource_moved(self, resource, new_resource):
+        self.last_moved = (resource, new_resource)
+        self.change_count += 1
+
+    def resource_created(self, resource):
+        self.last_created = resource
+        self.change_count += 1
+
+    def resource_removed(self, resource):
+        self.last_removed = resource
+        self.change_count += 1
+
+
+class OutOfProjectTest(unittest.TestCase):
+
+    def setUp(self):
+        super(OutOfProjectTest, self).setUp()
+        self.test_directory = 'temp_test_directory'
+        testutils.remove_recursively(self.test_directory)
+        os.mkdir(self.test_directory)
+        self.project = testutils.sample_project()
+        self.no_project = NoProject()
+
+    def tearDown(self):
+        testutils.remove_project(self.project)
+        testutils.remove_recursively(self.test_directory)
+        super(OutOfProjectTest, self).tearDown()
+
+    def test_simple_out_of_project_file(self):
+        sample_file_path = os.path.join(self.test_directory, 'sample.txt')
+        sample_file = open(sample_file_path, 'w')
+        sample_file.write('sample content\n')
+        sample_file.close()
+        sample_resource = self.no_project.get_resource(sample_file_path)
+        self.assertEquals('sample content\n', sample_resource.read())
+
+    def test_simple_out_of_project_folder(self):
+        sample_folder_path = os.path.join(self.test_directory, 'sample_folder')
+        os.mkdir(sample_folder_path)
+        sample_folder = self.no_project.get_resource(sample_folder_path)
+        self.assertEquals([], sample_folder.get_children())
+
+        sample_file_path = os.path.join(sample_folder_path, 'sample.txt')
+        open(sample_file_path, 'w').close()
+        sample_resource = self.no_project.get_resource(sample_file_path)
+        self.assertEquals(sample_resource, sample_folder.get_children()[0])
+
+    def test_using_absolute_path(self):
+        sample_file_path = os.path.join(self.test_directory, 'sample.txt')
+        open(sample_file_path, 'w').close()
+        normal_sample_resource = self.no_project.get_resource(sample_file_path)
+        absolute_sample_resource = \
+            self.no_project.get_resource(os.path.abspath(sample_file_path))
+        self.assertEquals(normal_sample_resource, absolute_sample_resource)
+
+    def test_folder_get_child(self):
+        sample_folder_path = os.path.join(self.test_directory, 'sample_folder')
+        os.mkdir(sample_folder_path)
+        sample_folder = self.no_project.get_resource(sample_folder_path)
+        self.assertEquals([], sample_folder.get_children())
+
+        sample_file_path = os.path.join(sample_folder_path, 'sample.txt')
+        open(sample_file_path, 'w').close()
+        sample_resource = self.no_project.get_resource(sample_file_path)
+        self.assertTrue(sample_folder.has_child('sample.txt'))
+        self.assertFalse(sample_folder.has_child('doesnothave.txt'))
+        self.assertEquals(sample_resource,
+                          sample_folder.get_child('sample.txt'))
+
+    def test_out_of_project_files_and_path_to_resource(self):
+        sample_file_path = os.path.join(self.test_directory, 'sample.txt')
+        sample_file = open(sample_file_path, 'w')
+        sample_file.write('sample content\n')
+        sample_file.close()
+        sample_resource = self.no_project.get_resource(sample_file_path)
+        self.assertEquals(sample_resource,
+                          path_to_resource(self.project, sample_file_path))
+
+
+class _MockFSCommands(object):
+    def __init__(self):
+        self.log = ''
+        self.fscommands = FileSystemCommands()
+
+    def create_file(self, path):
+        self.log += 'create_file '
+        self.fscommands.create_file(path)
+
+    def create_folder(self, path):
+        self.log += 'create_folder '
+        self.fscommands.create_folder(path)
+
+    def move(self, path, new_location):
+        self.log += 'move '
+        self.fscommands.move(path, new_location)
+
+    def remove(self, path):
+        self.log += 'remove '
+        self.fscommands.remove(path)
+
+
+class RopeFolderTest(unittest.TestCase):
+
+    def setUp(self):
+        super(RopeFolderTest, self).setUp()
+        self.project = None
+
+    def tearDown(self):
+        if self.project:
+            testutils.remove_project(self.project)
+        super(RopeFolderTest, self).tearDown()
+
+    def test_none_project_rope_folder(self):
+        self.project = testutils.sample_project(ropefolder=None)
+        self.assertTrue(self.project.ropefolder is None)
+
+    def test_getting_project_rope_folder(self):
+        self.project = testutils.sample_project(ropefolder='.ropeproject')
+        self.assertTrue(self.project.ropefolder.exists())
+        self.assertTrue('.ropeproject', self.project.ropefolder.path)
+
+    def test_setting_ignored_resources(self):
+        self.project = testutils.sample_project(
+            ignored_resources=['myfile.txt'])
+        myfile = self.project.get_file('myfile.txt')
+        file2 = self.project.get_file('file2.txt')
+        self.assertTrue(self.project.is_ignored(myfile))
+        self.assertFalse(self.project.is_ignored(file2))
+
+    def test_ignored_folders(self):
+        self.project = testutils.sample_project(ignored_resources=['myfolder'])
+        myfolder = self.project.root.create_folder('myfolder')
+        self.assertTrue(self.project.is_ignored(myfolder))
+        myfile = myfolder.create_file('myfile.txt')
+        self.assertTrue(self.project.is_ignored(myfile))
+
+    def test_ignored_resources_and_get_files(self):
+        self.project = testutils.sample_project(
+            ignored_resources=['myfile.txt'], ropefolder=None)
+        myfile = self.project.get_file('myfile.txt')
+        self.assertEquals(0, len(self.project.get_files()))
+        myfile.create()
+        self.assertEquals(0, len(self.project.get_files()))
+
+    def test_ignored_resources_and_get_files2(self):
+        self.project = testutils.sample_project(
+            ignored_resources=['myfile.txt'], ropefolder=None)
+        myfile = self.project.root.create_file('myfile.txt')  # noqa
+        self.assertEquals(0, len(self.project.get_files()))
+
+    def test_setting_ignored_resources_patterns(self):
+        self.project = testutils.sample_project(ignored_resources=['m?file.*'])
+        myfile = self.project.get_file('myfile.txt')
+        file2 = self.project.get_file('file2.txt')
+        self.assertTrue(self.project.is_ignored(myfile))
+        self.assertFalse(self.project.is_ignored(file2))
+
+    def test_star_should_not_include_slashes(self):
+        self.project = testutils.sample_project(ignored_resources=['f*.txt'])
+        folder = self.project.root.create_folder('folder')
+        file1 = folder.create_file('myfile.txt')
+        file2 = folder.create_file('file2.txt')
+        self.assertFalse(self.project.is_ignored(file1))
+        self.assertTrue(self.project.is_ignored(file2))
+
+    def test_normal_fscommands(self):
+        fscommands = _MockFSCommands()
+        self.project = testutils.sample_project(fscommands=fscommands)
+        myfile = self.project.get_file('myfile.txt')
+        myfile.create()
+        self.assertTrue('create_file ', fscommands.log)
+
+    def test_fscommands_and_ignored_resources(self):
+        fscommands = _MockFSCommands()
+        self.project = testutils.sample_project(
+            fscommands=fscommands,
+            ignored_resources=['myfile.txt'], ropefolder=None)
+        myfile = self.project.get_file('myfile.txt')
+        myfile.create()
+        self.assertEquals('', fscommands.log)
+
+    def test_ignored_resources_and_prefixes(self):
+        self.project = testutils.sample_project(
+            ignored_resources=['.hg'])
+        myfile = self.project.root.create_file('.hgignore')
+        self.assertFalse(self.project.is_ignored(myfile))
+
+    def test_loading_config_dot_py(self):
+        self.project = testutils.sample_project(ropefolder='.ropeproject')
+        config = self.project.get_file('.ropeproject/config.py')
+        if not config.exists():
+            config.create()
+        config.write('def set_prefs(prefs):\n'
+                     '    prefs["ignored_resources"] = ["myfile.txt"]\n'
+                     'def project_opened(project):\n'
+                     '    project.root.create_file("loaded")\n')
+        self.project.close()
+        self.project = Project(self.project.address, ropefolder='.ropeproject')
+        self.assertTrue(self.project.get_file('loaded').exists())
+        myfile = self.project.get_file('myfile.txt')
+        self.assertTrue(self.project.is_ignored(myfile))
+
+    def test_ignoring_syntax_errors(self):
+        self.project = testutils.sample_project(ropefolder=None,
+                                                ignore_syntax_errors=True)
+        mod = testutils.create_module(self.project, 'mod')
+        mod.write('xyz print')
+        pymod = self.project.get_pymodule(mod)  # noqa
+
+    def test_compressed_history(self):
+        self.project = testutils.sample_project(compress_history=True)
+        mod = testutils.create_module(self.project, 'mod')
+        mod.write('')
+
+    def test_compressed_objectdb(self):
+        self.project = testutils.sample_project(compress_objectdb=True)
+        mod = testutils.create_module(self.project, 'mod')
+        self.project.pycore.analyze_module(mod)
+
+    def test_nested_dot_ropeproject_folder(self):
+        self.project = testutils.sample_project(ropefolder='.f1/f2')
+        ropefolder = self.project.ropefolder
+        self.assertEquals('.f1/f2', ropefolder.path)
+        self.assertTrue(ropefolder.exists())
+
+
+def suite():
+    result = unittest.TestSuite()
+    result.addTests(unittest.makeSuite(ProjectTest))
+    result.addTests(unittest.makeSuite(ResourceObserverTest))
+    result.addTests(unittest.makeSuite(OutOfProjectTest))
+    result.addTests(unittest.makeSuite(RopeFolderTest))
+    return result
+
+if __name__ == '__main__':
+    unittest.main()