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historytest.py
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historytest.py
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import unittest
import rope.base.history
from rope.base import exceptions
import rope.base.change
from ropetest import testutils
class HistoryTest(unittest.TestCase):
def setUp(self):
super().setUp()
self.project = testutils.sample_project()
self.history = self.project.history
def tearDown(self):
testutils.remove_project(self.project)
super().tearDown()
def test_undoing_writes(self):
my_file = self.project.root.create_file("my_file.txt")
my_file.write("text1")
self.history.undo()
self.assertEqual("", my_file.read())
def test_moving_files(self):
my_file = self.project.root.create_file("my_file.txt")
my_file.move("new_file.txt")
self.history.undo()
self.assertEqual("", my_file.read())
def test_moving_files_to_folders(self):
my_file = self.project.root.create_file("my_file.txt")
my_folder = self.project.root.create_folder("my_folder")
my_file.move(my_folder.path)
self.history.undo()
self.assertEqual("", my_file.read())
def test_writing_files_that_does_not_change_contents(self):
my_file = self.project.root.create_file("my_file.txt")
my_file.write("")
self.project.history.undo()
self.assertFalse(my_file.exists())
class IsolatedHistoryTest(unittest.TestCase):
def setUp(self):
super().setUp()
self.project = testutils.sample_project()
self.history = rope.base.history.History(self.project)
self.file1 = self.project.root.create_file("file1.txt")
self.file2 = self.project.root.create_file("file2.txt")
def tearDown(self):
testutils.remove_project(self.project)
super().tearDown()
def test_simple_undo(self):
change = rope.base.change.ChangeContents(self.file1, "1")
self.history.do(change)
self.assertEqual("1", self.file1.read())
self.history.undo()
self.assertEqual("", self.file1.read())
def test_tobe_undone(self):
change1 = rope.base.change.ChangeContents(self.file1, "1")
self.assertEqual(None, self.history.tobe_undone)
self.history.do(change1)
self.assertEqual(change1, self.history.tobe_undone)
change2 = rope.base.change.ChangeContents(self.file1, "2")
self.history.do(change2)
self.assertEqual(change2, self.history.tobe_undone)
self.history.undo()
self.assertEqual(change1, self.history.tobe_undone)
def test_tobe_redone(self):
change = rope.base.change.ChangeContents(self.file1, "1")
self.history.do(change)
self.assertEqual(None, self.history.tobe_redone)
self.history.undo()
self.assertEqual(change, self.history.tobe_redone)
def test_undo_limit(self):
history = rope.base.history.History(self.project, maxundos=1)
history.do(rope.base.change.ChangeContents(self.file1, "1"))
history.do(rope.base.change.ChangeContents(self.file1, "2"))
try:
history.undo()
with self.assertRaises(exceptions.HistoryError):
history.undo()
finally:
self.assertEqual("1", self.file1.read())
def test_simple_redo(self):
change = rope.base.change.ChangeContents(self.file1, "1")
self.history.do(change)
self.history.undo()
self.history.redo()
self.assertEqual("1", self.file1.read())
def test_simple_re_undo(self):
change = rope.base.change.ChangeContents(self.file1, "1")
self.history.do(change)
self.history.undo()
self.history.redo()
self.history.undo()
self.assertEqual("", self.file1.read())
def test_multiple_undos(self):
change = rope.base.change.ChangeContents(self.file1, "1")
self.history.do(change)
change = rope.base.change.ChangeContents(self.file1, "2")
self.history.do(change)
self.history.undo()
self.assertEqual("1", self.file1.read())
change = rope.base.change.ChangeContents(self.file1, "3")
self.history.do(change)
self.history.undo()
self.assertEqual("1", self.file1.read())
self.history.redo()
self.assertEqual("3", self.file1.read())
def test_undo_list_underflow(self):
with self.assertRaises(exceptions.HistoryError):
self.history.undo()
def test_redo_list_underflow(self):
with self.assertRaises(exceptions.HistoryError):
self.history.redo()
def test_dropping_undone_changes(self):
self.file1.write("1")
with self.assertRaises(exceptions.HistoryError):
self.history.undo(drop=True)
self.history.redo()
def test_undoing_chosen_changes(self):
change = rope.base.change.ChangeContents(self.file1, "1")
self.history.do(change)
self.history.undo(change)
self.assertEqual("", self.file1.read())
self.assertFalse(self.history.undo_list)
def test_undoing_chosen_changes2(self):
change1 = rope.base.change.ChangeContents(self.file1, "1")
self.history.do(change1)
self.history.do(rope.base.change.ChangeContents(self.file1, "2"))
self.history.undo(change1)
self.assertEqual("", self.file1.read())
self.assertFalse(self.history.undo_list)
def test_undoing_chosen_changes_not_undoing_others(self):
change1 = rope.base.change.ChangeContents(self.file1, "1")
self.history.do(change1)
self.history.do(rope.base.change.ChangeContents(self.file2, "2"))
self.history.undo(change1)
self.assertEqual("", self.file1.read())
self.assertEqual("2", self.file2.read())
def test_undoing_writing_after_moving(self):
change1 = rope.base.change.ChangeContents(self.file1, "1")
self.history.do(change1)
self.history.do(rope.base.change.MoveResource(self.file1, "file3.txt"))
file3 = self.project.get_resource("file3.txt")
self.history.undo(change1)
self.assertEqual("", self.file1.read())
self.assertFalse(file3.exists())
def test_undoing_folder_movements_for_undoing_writes_inside_it(self):
folder = self.project.root.create_folder("folder")
file3 = folder.create_file("file3.txt")
change1 = rope.base.change.ChangeContents(file3, "1")
self.history.do(change1)
self.history.do(rope.base.change.MoveResource(folder, "new_folder"))
new_folder = self.project.get_resource("new_folder")
self.history.undo(change1)
self.assertEqual("", file3.read())
self.assertFalse(new_folder.exists())
def test_undoing_changes_that_depend_on_a_dependant_change(self):
change1 = rope.base.change.ChangeContents(self.file1, "1")
self.history.do(change1)
changes = rope.base.change.ChangeSet("2nd change")
changes.add_change(rope.base.change.ChangeContents(self.file1, "2"))
changes.add_change(rope.base.change.ChangeContents(self.file2, "2"))
self.history.do(changes)
self.history.do(rope.base.change.MoveResource(self.file2, "file3.txt"))
file3 = self.project.get_resource("file3.txt")
self.history.undo(change1)
self.assertEqual("", self.file1.read())
self.assertEqual("", self.file2.read())
self.assertFalse(file3.exists())
def test_undoing_writes_for_undoing_folder_movements_containing_it(self):
folder = self.project.root.create_folder("folder")
old_file = folder.create_file("file3.txt")
change1 = rope.base.change.MoveResource(folder, "new_folder")
self.history.do(change1)
new_file = self.project.get_resource("new_folder/file3.txt")
self.history.do(rope.base.change.ChangeContents(new_file, "1"))
self.history.undo(change1)
self.assertEqual("", old_file.read())
self.assertFalse(new_file.exists())
def test_undoing_not_available_change(self):
change = rope.base.change.ChangeContents(self.file1, "1")
with self.assertRaises(exceptions.HistoryError):
self.history.undo(change)
def test_ignoring_ignored_resources(self):
self.project.set("ignored_resources", ["ignored*"])
ignored = self.project.get_file("ignored.txt")
change = rope.base.change.CreateResource(ignored)
self.history.do(change)
self.assertTrue(ignored.exists())
self.assertEqual(0, len(self.history.undo_list))
def test_get_file_undo_list_simple(self):
change = rope.base.change.ChangeContents(self.file1, "1")
self.history.do(change)
self.assertEqual({change}, set(self.history.get_file_undo_list(self.file1)))
def test_get_file_undo_list_for_moves(self):
change = rope.base.change.MoveResource(self.file1, "file2.txt")
self.history.do(change)
self.assertEqual({change}, set(self.history.get_file_undo_list(self.file1)))
# XXX: What happens for moves before the file is created?
def xxx_test_get_file_undo_list_and_moving_its_containing_folder(self):
folder = self.project.root.create_folder("folder")
old_file = folder.create_file("file3.txt")
change1 = rope.base.change.MoveResource(folder, "new_folder")
self.history.do(change1)
self.assertEqual({change1}, set(self.history.get_file_undo_list(old_file)))
def test_clearing_redo_list_after_do(self):
change = rope.base.change.ChangeContents(self.file1, "1")
self.history.do(change)
self.history.undo()
self.history.do(change)
self.assertEqual(0, len(self.history.redo_list))
def test_undoing_a_not_yet_performed_change(self):
change = rope.base.change.ChangeContents(self.file1, "1")
str(change)
with self.assertRaises(exceptions.HistoryError):
change.undo()
def test_clearing_up_the_history(self):
change1 = rope.base.change.ChangeContents(self.file1, "1")
change2 = rope.base.change.ChangeContents(self.file1, "2")
self.history.do(change1)
self.history.do(change2)
self.history.undo()
self.history.clear()
self.assertEqual(0, len(self.history.undo_list))
self.assertEqual(0, len(self.history.redo_list))
def test_redoing_chosen_changes_not_undoing_others(self):
change1 = rope.base.change.ChangeContents(self.file1, "1")
change2 = rope.base.change.ChangeContents(self.file2, "2")
self.history.do(change1)
self.history.do(change2)
self.history.undo()
self.history.undo()
redone = self.history.redo(change2)
self.assertEqual([change2], redone)
self.assertEqual("", self.file1.read())
self.assertEqual("2", self.file2.read())
class SavingHistoryTest(unittest.TestCase):
def setUp(self):
super().setUp()
self.project = testutils.sample_project()
self.history = rope.base.history.History(self.project)
self.to_data = rope.base.change.ChangeToData()
self.to_change = rope.base.change.DataToChange(self.project)
def tearDown(self):
testutils.remove_project(self.project)
super().tearDown()
def test_simple_set_saving(self):
data = self.to_data(rope.base.change.ChangeSet("testing"))
change = self.to_change(data)
self.assertEqual("testing", str(change))
def test_simple_change_content_saving(self):
myfile = self.project.get_file("myfile.txt")
myfile.create()
myfile.write("1")
data = self.to_data(rope.base.change.ChangeContents(myfile, "2"))
change = self.to_change(data)
self.history.do(change)
self.assertEqual("2", myfile.read())
self.history.undo()
self.assertEqual("1", change.old_contents)
def test_move_resource_saving(self):
myfile = self.project.root.create_file("myfile.txt")
myfolder = self.project.root.create_folder("myfolder")
data = self.to_data(rope.base.change.MoveResource(myfile, "myfolder"))
change = self.to_change(data)
self.history.do(change)
self.assertFalse(myfile.exists())
self.assertTrue(myfolder.has_child("myfile.txt"))
self.history.undo()
self.assertTrue(myfile.exists())
self.assertFalse(myfolder.has_child("myfile.txt"))
def test_move_resource_saving_for_folders(self):
myfolder = self.project.root.create_folder("myfolder")
newfolder = self.project.get_folder("newfolder")
change = rope.base.change.MoveResource(myfolder, "newfolder")
self.history.do(change)
data = self.to_data(change)
change = self.to_change(data)
change.undo()
self.assertTrue(myfolder.exists())
self.assertFalse(newfolder.exists())
def test_create_file_saving(self):
myfile = self.project.get_file("myfile.txt")
data = self.to_data(
rope.base.change.CreateFile(self.project.root, "myfile.txt")
)
change = self.to_change(data)
self.history.do(change)
self.assertTrue(myfile.exists())
self.history.undo()
self.assertFalse(myfile.exists())
def test_create_folder_saving(self):
myfolder = self.project.get_folder("myfolder")
data = self.to_data(
rope.base.change.CreateFolder(self.project.root, "myfolder")
)
change = self.to_change(data)
self.history.do(change)
self.assertTrue(myfolder.exists())
self.history.undo()
self.assertFalse(myfolder.exists())
def test_create_resource_saving(self):
myfile = self.project.get_file("myfile.txt")
data = self.to_data(rope.base.change.CreateResource(myfile))
change = self.to_change(data)
self.history.do(change)
self.assertTrue(myfile.exists())
self.history.undo()
self.assertFalse(myfile.exists())
def test_remove_resource_saving(self):
myfile = self.project.root.create_file("myfile.txt")
data = self.to_data(rope.base.change.RemoveResource(myfile))
change = self.to_change(data)
self.history.do(change)
self.assertFalse(myfile.exists())
def test_change_set_saving(self):
change = rope.base.change.ChangeSet("testing")
myfile = self.project.get_file("myfile.txt")
change.add_change(rope.base.change.CreateResource(myfile))
change.add_change(rope.base.change.ChangeContents(myfile, "1"))
data = self.to_data(change)
change = self.to_change(data)
self.history.do(change)
self.assertEqual("1", myfile.read())
self.history.undo()
self.assertFalse(myfile.exists())
def test_writing_and_reading_history(self):
history_file = self.project.get_file("history.pickle") # noqa
self.project.set("save_history", True)
history = rope.base.history.History(self.project)
myfile = self.project.get_file("myfile.txt")
history.do(rope.base.change.CreateResource(myfile))
history.write()
history = rope.base.history.History(self.project)
history.undo()
self.assertFalse(myfile.exists())
def test_writing_and_reading_history2(self):
history_file = self.project.get_file("history.pickle") # noqa
self.project.set("save_history", True)
history = rope.base.history.History(self.project)
myfile = self.project.get_file("myfile.txt")
history.do(rope.base.change.CreateResource(myfile))
history.undo()
history.write()
history = rope.base.history.History(self.project)
history.redo()
self.assertTrue(myfile.exists())