def test_invoker_execute_should_execute_in_given_order():
commands_to_execute = [Command2(), Command1()]
invoker = Invoker()
invoker.execute(commands_to_execute)
assert isinstance(invoker._executed_commands[0], Command2)
assert isinstance(invoker._executed_commands[1], Command1)
def test_invoker_execute_should_execute_commands_in_giver_order():
commands_to_execute = [Command1(), Command2()]
invoker = Invoker()
invoker.execute(commands_to_execute)
assert invoker._executed_commands[0].command == "touch content.txt"
assert (invoker._executed_commands[1].command ==
"mv content.txt content-replaced.txt")
def test_invoker_undo_should_run_two_commands_in_reversed_order():
commands_to_execute = [Command1(), Command2()]
invoker = Invoker()
invoker.execute(commands_to_execute)
assert invoker._executed_commands[0].command == "touch content.txt"
assert (invoker._executed_commands[1].command ==
"mv content.txt content-replaced.txt")
invoker.undo()
assert (invoker._undo_commands_executed[0].undo_command ==
"mv content-replaced.txt content.txt")
assert invoker._undo_commands_executed[1].undo_command == "rm content.txt"
def test_invoker_execute_shouldnt_be_undo():
commands_to_execute = [Command1(), Command2(), InvalidCommand()]
invoker = Invoker()
invoker.execute(commands_to_execute, run_undo=False)
assert invoker._executed_commands[0].command == "touch content.txt"
assert (invoker._executed_commands[1].command ==
"mv content.txt content-replaced.txt")
assert invoker._undo_commands_executed == []
assert len(invoker._commands) == 3
assert len(invoker._executed_commands) == 2
assert len(invoker._undo_commands_executed) == 0
def test_invoker_execute_should_be_undo_automatically():
commands_to_execute = [Command1(), Command2(), InvalidCommand()]
invoker = Invoker()
invoker.execute(commands_to_execute, run_undo=True)
assert invoker._executed_commands[0].command == "touch content.txt"
assert (invoker._executed_commands[1].command ==
"mv content.txt content-replaced.txt")
assert (invoker._undo_commands_executed[0].undo_command ==
"mv content-replaced.txt content.txt")
assert invoker._undo_commands_executed[1].undo_command == "rm content.txt"
assert len(invoker._commands) == 3
assert len(invoker._executed_commands) == 2
assert len(invoker._undo_commands_executed) == 2
def test_invoker_execute_should_execute_two_commands():
commands_to_execute = [Command1(), Command2()]
invoker = Invoker()
invoker.execute(commands_to_execute)
assert len(invoker._executed_commands) == 2
def test_invoker_has_been_success_should_be_false():
commands_to_execute = [Command1(), Command2(), InvalidCommand()]
invoker = Invoker()
invoker.execute(commands_to_execute)
assert invoker.has_been_success is False
def test_invoker_has_been_success_should_be_true():
commands_to_execute = [Command1(), Command2()]
invoker = Invoker()
invoker.execute(commands_to_execute)
assert invoker.has_been_success is True