| 16 | |
| 17 | |
| 18 | class InterpreterTests(unittest.TestCase): |
| 19 | def setUp(self): |
| 20 | self.i = LSystemInterpeter("default", 1.0, 90) |
| 21 | |
| 22 | def test_forward(self): |
| 23 | commands = io.StringIO("FG") |
| 24 | expected = [LineString([(0, 0, 0), (0, 0, 2)])] |
| 25 | tokens = self.i.tokenize(commands) |
| 26 | lines = list(self.i.interpret(tokens)) |
| 27 | self.assertListEqual(lines, expected) |
| 28 | |
| 29 | def test_forward_no_draw(self): |
| 30 | commands = io.StringIO("fGF") |
| 31 | expected = [LineString([(0, 0, 1), (0, 0, 3)])] |
| 32 | tokens = self.i.tokenize(commands) |
| 33 | lines = list(self.i.interpret(tokens)) |
| 34 | self.assertListEqual(lines, expected) |
| 35 | |
| 36 | def test_forward_no_draw_cuts_line(self): |
| 37 | commands = io.StringIO("FfF") |
| 38 | expected = [ |
| 39 | LineString([(0, 0, 0), (0, 0, 1)]), |
| 40 | LineString([(0, 0, 2), (0, 0, 3)]), |
| 41 | ] |
| 42 | tokens = self.i.tokenize(commands) |
| 43 | lines = list(self.i.interpret(tokens)) |
| 44 | self.assertListEqual(lines, expected) |
| 45 | |
| 46 | def test_yaw(self): |
| 47 | commands = io.StringIO("F+F-F") |
| 48 | expected = [LineString([(0, 0, 0), (0, 0, 1), (0, -1, 1), (0, -1, 2)])] |
| 49 | tokens = self.i.tokenize(commands) |
| 50 | lines = list(self.i.interpret(tokens)) |
| 51 | self.assertEqual(len(lines), len(expected)) |
| 52 | for actual, desired in zip(lines, expected): |
| 53 | self.assertTrue(actual.equals_exact(desired, tolerance=1e-6)) |
| 54 | |
| 55 | def test_draw_no_draw(self): |
| 56 | commands = io.StringIO("dF+FDFF") |
| 57 | expected = [LineString([(0, -1, 1), (0, -3, 1)])] |
| 58 | tokens = self.i.tokenize(commands) |
| 59 | lines = list(self.i.interpret(tokens)) |
| 60 | self.assertEqual(len(lines), len(expected)) |
| 61 | for actual, desired in zip(lines, expected): |
| 62 | self.assertTrue(actual.equals_exact(desired, tolerance=1e-6)) |
| 63 | |
| 64 | def test_draw_no_draw_cuts_line(self): |
| 65 | commands = io.StringIO("dF+DFdFDF") |
| 66 | expected = [ |
| 67 | LineString([(0, 0, 1), (0, -1, 1)]), |
| 68 | LineString([(0, -2, 1), (0, -3, 1)]), |
| 69 | ] |
| 70 | tokens = self.i.tokenize(commands) |
| 71 | lines = list(self.i.interpret(tokens)) |
| 72 | self.assertEqual(len(lines), len(expected)) |
| 73 | for actual, desired in zip(lines, expected): |
| 74 | self.assertTrue( |
| 75 | actual.equals_exact(desired, tolerance=1e-6), |
nothing calls this directly
no outgoing calls
no test coverage detected