def test_forward(self):
output = StringIO()
t = GcodeTurtle(fd=output)
t.set_heading(0)
t.forward(100)
self.assertEqual(t.x, 0)
self.assertEqual(t.y, 100)
def test_right(self):
output = StringIO()
t = GcodeTurtle(fd=output)
t.set_heading(0)
t.right(30)
t.forward(100)
self.assertAlmostEqual(t.x, 50)
self.assertAlmostEqual(t.y, 50 * (3 ** .5))
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")
