def test_pen_down_does_not_retract_twice(self):
output = StringIO()
t = GcodeTurtle(fd=output)
t.pen_up()
prelude = output.getvalue()
t.pen_down()
t.pen_down()
output_line = output.getvalue().replace(prelude, "")
self.assertEqual(output_line, "G1 E1.000 F3000.000\r\n")
def test_pen_up(self):
output = StringIO()
t = GcodeTurtle(fd=output)
prelude = output.getvalue()
t.pen_up()
output_line = output.getvalue().replace(prelude, "")
self.assertEqual(output_line, "G1 E-1.000 F6000.000\r\n")
prelude = output.getvalue()
t.forward(10)
output_line = output.getvalue().replace(prelude, "")
self.assertNotEqual(output_line.split(" ")[-1][0], "E")
