public void Pop_TwoCommandsWithIdleUpdate_AllCommandsExtracted()
        {
            // ARRANGE
            var command1 = new Mock <ICommand>().Object;
            var command2 = new Mock <ICommand>().Object;

            var commandManager = new QueueCommandManager();

            // ACT

            commandManager.Push(command1);
            var factCommand1 = commandManager.Pop();

            // Холостой Update.
            var idleCommand = commandManager.Pop();

            // Вторая команда должна быть извлечена.
            commandManager.Push(command2);
            var factCommand2 = commandManager.Pop();

            // ASSERT
            factCommand1.Should().Be(command1);
            idleCommand.Should().BeNull();
            factCommand2.Should().Be(command2);
        }
        private static void AssertPopCommands(ICommand[] commands, QueueCommandManager commandManager)
        {
            foreach (var expectedCommand in commands)
            {
                var factCommand = commandManager.Pop();

                // ASSERT
                factCommand.Should().Be(expectedCommand);
            }
        }
        public void Pop_FakeCommands2_AllCommandsExtracted()
        {
            // ARRANGE
            var commands = GetTwoCommands();

            var commandManager = new QueueCommandManager();

            foreach (var command in commands)
            {
                commandManager.Push(command);
            }

            // ACT
            AssertPopCommands(commands, commandManager);
        }