public void GridValueIsNotValid(string grid)
        {
            // Arrange
            var cmd = new DISPLAY_GRID();

            // Act
            var result = cmd.Parse(Encoding.ASCII.GetBytes(grid + "\n"));

            // Assert
            Assert.False(result);
            Assert.Null(cmd.Grid);
        }
        public void CorrectGridValueIsStoredToProperty(string grid)
        {
            // Arrange
            var cmd = new DISPLAY_GRID();

            // Act
            var result = cmd.Parse(Encoding.ASCII.GetBytes(grid + "\n"));

            // Assert
            Assert.True(result);
            Assert.Equal(grid, cmd.Grid);
        }