mirror of
https://github.com/python/cpython.git
synced 2024-11-21 12:59:38 +01:00
552 lines
16 KiB
Python
552 lines
16 KiB
Python
import os
|
|
import pickle
|
|
import re
|
|
import unittest
|
|
import unittest.mock
|
|
import tempfile
|
|
from test import support
|
|
from test.support import import_helper
|
|
from test.support import os_helper
|
|
|
|
|
|
turtle = import_helper.import_module('turtle')
|
|
Vec2D = turtle.Vec2D
|
|
|
|
test_config = """\
|
|
width = 0.75
|
|
height = 0.8
|
|
canvwidth = 500
|
|
canvheight = 200
|
|
leftright = 100
|
|
topbottom = 100
|
|
mode = world
|
|
colormode = 255
|
|
delay = 100
|
|
undobuffersize = 10000
|
|
shape = circle
|
|
pencolor = red
|
|
fillcolor = blue
|
|
resizemode = auto
|
|
visible = None
|
|
language = english
|
|
exampleturtle = turtle
|
|
examplescreen = screen
|
|
title = Python Turtle Graphics
|
|
using_IDLE = ''
|
|
"""
|
|
|
|
test_config_two = """\
|
|
# Comments!
|
|
# Testing comments!
|
|
pencolor = red
|
|
fillcolor = blue
|
|
visible = False
|
|
language = english
|
|
# Some more
|
|
# comments
|
|
using_IDLE = False
|
|
"""
|
|
|
|
invalid_test_config = """
|
|
pencolor = red
|
|
fillcolor: blue
|
|
visible = False
|
|
"""
|
|
|
|
|
|
class TurtleConfigTest(unittest.TestCase):
|
|
|
|
def get_cfg_file(self, cfg_str):
|
|
self.addCleanup(os_helper.unlink, os_helper.TESTFN)
|
|
with open(os_helper.TESTFN, 'w') as f:
|
|
f.write(cfg_str)
|
|
return os_helper.TESTFN
|
|
|
|
def test_config_dict(self):
|
|
|
|
cfg_name = self.get_cfg_file(test_config)
|
|
parsed_cfg = turtle.config_dict(cfg_name)
|
|
|
|
expected = {
|
|
'width' : 0.75,
|
|
'height' : 0.8,
|
|
'canvwidth' : 500,
|
|
'canvheight': 200,
|
|
'leftright': 100,
|
|
'topbottom': 100,
|
|
'mode': 'world',
|
|
'colormode': 255,
|
|
'delay': 100,
|
|
'undobuffersize': 10000,
|
|
'shape': 'circle',
|
|
'pencolor' : 'red',
|
|
'fillcolor' : 'blue',
|
|
'resizemode' : 'auto',
|
|
'visible' : None,
|
|
'language': 'english',
|
|
'exampleturtle': 'turtle',
|
|
'examplescreen': 'screen',
|
|
'title': 'Python Turtle Graphics',
|
|
'using_IDLE': '',
|
|
}
|
|
|
|
self.assertEqual(parsed_cfg, expected)
|
|
|
|
def test_partial_config_dict_with_comments(self):
|
|
|
|
cfg_name = self.get_cfg_file(test_config_two)
|
|
parsed_cfg = turtle.config_dict(cfg_name)
|
|
|
|
expected = {
|
|
'pencolor': 'red',
|
|
'fillcolor': 'blue',
|
|
'visible': False,
|
|
'language': 'english',
|
|
'using_IDLE': False,
|
|
}
|
|
|
|
self.assertEqual(parsed_cfg, expected)
|
|
|
|
def test_config_dict_invalid(self):
|
|
|
|
cfg_name = self.get_cfg_file(invalid_test_config)
|
|
|
|
with support.captured_stdout() as stdout:
|
|
parsed_cfg = turtle.config_dict(cfg_name)
|
|
|
|
err_msg = stdout.getvalue()
|
|
|
|
self.assertIn('Bad line in config-file ', err_msg)
|
|
self.assertIn('fillcolor: blue', err_msg)
|
|
|
|
self.assertEqual(parsed_cfg, {
|
|
'pencolor': 'red',
|
|
'visible': False,
|
|
})
|
|
|
|
|
|
class VectorComparisonMixin:
|
|
|
|
def assertVectorsAlmostEqual(self, vec1, vec2):
|
|
if len(vec1) != len(vec2):
|
|
self.fail("Tuples are not of equal size")
|
|
for idx, (i, j) in enumerate(zip(vec1, vec2)):
|
|
self.assertAlmostEqual(
|
|
i, j, msg='values at index {} do not match'.format(idx))
|
|
|
|
|
|
class Multiplier:
|
|
|
|
def __mul__(self, other):
|
|
return f'M*{other}'
|
|
|
|
def __rmul__(self, other):
|
|
return f'{other}*M'
|
|
|
|
|
|
class TestVec2D(VectorComparisonMixin, unittest.TestCase):
|
|
|
|
def test_constructor(self):
|
|
vec = Vec2D(0.5, 2)
|
|
self.assertEqual(vec[0], 0.5)
|
|
self.assertEqual(vec[1], 2)
|
|
self.assertIsInstance(vec, Vec2D)
|
|
|
|
self.assertRaises(TypeError, Vec2D)
|
|
self.assertRaises(TypeError, Vec2D, 0)
|
|
self.assertRaises(TypeError, Vec2D, (0, 1))
|
|
self.assertRaises(TypeError, Vec2D, vec)
|
|
self.assertRaises(TypeError, Vec2D, 0, 1, 2)
|
|
|
|
def test_repr(self):
|
|
vec = Vec2D(0.567, 1.234)
|
|
self.assertEqual(repr(vec), '(0.57,1.23)')
|
|
|
|
def test_equality(self):
|
|
vec1 = Vec2D(0, 1)
|
|
vec2 = Vec2D(0.0, 1)
|
|
vec3 = Vec2D(42, 1)
|
|
self.assertEqual(vec1, vec2)
|
|
self.assertEqual(vec1, tuple(vec1))
|
|
self.assertEqual(tuple(vec1), vec1)
|
|
self.assertNotEqual(vec1, vec3)
|
|
self.assertNotEqual(vec2, vec3)
|
|
|
|
def test_pickling(self):
|
|
vec = Vec2D(0.5, 2)
|
|
for proto in range(pickle.HIGHEST_PROTOCOL + 1):
|
|
with self.subTest(proto=proto):
|
|
pickled = pickle.dumps(vec, protocol=proto)
|
|
unpickled = pickle.loads(pickled)
|
|
self.assertEqual(unpickled, vec)
|
|
self.assertIsInstance(unpickled, Vec2D)
|
|
|
|
def _assert_arithmetic_cases(self, test_cases, lambda_operator):
|
|
for test_case in test_cases:
|
|
with self.subTest(case=test_case):
|
|
|
|
((first, second), expected) = test_case
|
|
|
|
op1 = Vec2D(*first)
|
|
op2 = Vec2D(*second)
|
|
|
|
result = lambda_operator(op1, op2)
|
|
|
|
expected = Vec2D(*expected)
|
|
|
|
self.assertVectorsAlmostEqual(result, expected)
|
|
|
|
def test_vector_addition(self):
|
|
|
|
test_cases = [
|
|
(((0, 0), (1, 1)), (1.0, 1.0)),
|
|
(((-1, 0), (2, 2)), (1, 2)),
|
|
(((1.5, 0), (1, 1)), (2.5, 1)),
|
|
]
|
|
|
|
self._assert_arithmetic_cases(test_cases, lambda x, y: x + y)
|
|
|
|
def test_vector_subtraction(self):
|
|
|
|
test_cases = [
|
|
(((0, 0), (1, 1)), (-1, -1)),
|
|
(((10.625, 0.125), (10, 0)), (0.625, 0.125)),
|
|
]
|
|
|
|
self._assert_arithmetic_cases(test_cases, lambda x, y: x - y)
|
|
|
|
def test_vector_multiply(self):
|
|
|
|
vec1 = Vec2D(10, 10)
|
|
vec2 = Vec2D(0.5, 3)
|
|
answer = vec1 * vec2
|
|
expected = 35
|
|
self.assertAlmostEqual(answer, expected)
|
|
|
|
vec = Vec2D(0.5, 3)
|
|
expected = Vec2D(5, 30)
|
|
self.assertVectorsAlmostEqual(vec * 10, expected)
|
|
self.assertVectorsAlmostEqual(10 * vec, expected)
|
|
self.assertVectorsAlmostEqual(vec * 10.0, expected)
|
|
self.assertVectorsAlmostEqual(10.0 * vec, expected)
|
|
|
|
M = Multiplier()
|
|
self.assertEqual(vec * M, Vec2D(f"{vec[0]}*M", f"{vec[1]}*M"))
|
|
self.assertEqual(M * vec, f'M*{vec}')
|
|
|
|
def test_vector_negative(self):
|
|
vec = Vec2D(10, -10)
|
|
expected = (-10, 10)
|
|
self.assertVectorsAlmostEqual(-vec, expected)
|
|
|
|
def test_distance(self):
|
|
self.assertAlmostEqual(abs(Vec2D(6, 8)), 10)
|
|
self.assertEqual(abs(Vec2D(0, 0)), 0)
|
|
self.assertAlmostEqual(abs(Vec2D(2.5, 6)), 6.5)
|
|
|
|
def test_rotate(self):
|
|
|
|
cases = [
|
|
(((0, 0), 0), (0, 0)),
|
|
(((0, 1), 90), (-1, 0)),
|
|
(((0, 1), -90), (1, 0)),
|
|
(((1, 0), 180), (-1, 0)),
|
|
(((1, 0), 360), (1, 0)),
|
|
]
|
|
|
|
for case in cases:
|
|
with self.subTest(case=case):
|
|
(vec, rot), expected = case
|
|
vec = Vec2D(*vec)
|
|
got = vec.rotate(rot)
|
|
self.assertVectorsAlmostEqual(got, expected)
|
|
|
|
|
|
class TestTNavigator(VectorComparisonMixin, unittest.TestCase):
|
|
|
|
def setUp(self):
|
|
self.nav = turtle.TNavigator()
|
|
|
|
def test_goto(self):
|
|
self.nav.goto(100, -100)
|
|
self.assertAlmostEqual(self.nav.xcor(), 100)
|
|
self.assertAlmostEqual(self.nav.ycor(), -100)
|
|
|
|
def test_teleport(self):
|
|
self.nav.teleport(20, -30, fill_gap=True)
|
|
self.assertAlmostEqual(self.nav.xcor(), 20)
|
|
self.assertAlmostEqual(self.nav.ycor(), -30)
|
|
self.nav.teleport(-20, 30, fill_gap=False)
|
|
self.assertAlmostEqual(self.nav.xcor(), -20)
|
|
self.assertAlmostEqual(self.nav.ycor(), 30)
|
|
|
|
def test_pos(self):
|
|
self.assertEqual(self.nav.pos(), self.nav._position)
|
|
self.nav.goto(100, -100)
|
|
self.assertEqual(self.nav.pos(), self.nav._position)
|
|
|
|
def test_left(self):
|
|
self.assertEqual(self.nav._orient, (1.0, 0))
|
|
self.nav.left(90)
|
|
self.assertVectorsAlmostEqual(self.nav._orient, (0.0, 1.0))
|
|
|
|
def test_right(self):
|
|
self.assertEqual(self.nav._orient, (1.0, 0))
|
|
self.nav.right(90)
|
|
self.assertVectorsAlmostEqual(self.nav._orient, (0, -1.0))
|
|
|
|
def test_reset(self):
|
|
self.nav.goto(100, -100)
|
|
self.assertAlmostEqual(self.nav.xcor(), 100)
|
|
self.assertAlmostEqual(self.nav.ycor(), -100)
|
|
self.nav.reset()
|
|
self.assertAlmostEqual(self.nav.xcor(), 0)
|
|
self.assertAlmostEqual(self.nav.ycor(), 0)
|
|
|
|
def test_forward(self):
|
|
self.nav.forward(150)
|
|
expected = Vec2D(150, 0)
|
|
self.assertVectorsAlmostEqual(self.nav.position(), expected)
|
|
|
|
self.nav.reset()
|
|
self.nav.left(90)
|
|
self.nav.forward(150)
|
|
expected = Vec2D(0, 150)
|
|
self.assertVectorsAlmostEqual(self.nav.position(), expected)
|
|
|
|
self.assertRaises(TypeError, self.nav.forward, 'skldjfldsk')
|
|
|
|
def test_backwards(self):
|
|
self.nav.back(200)
|
|
expected = Vec2D(-200, 0)
|
|
self.assertVectorsAlmostEqual(self.nav.position(), expected)
|
|
|
|
self.nav.reset()
|
|
self.nav.right(90)
|
|
self.nav.back(200)
|
|
expected = Vec2D(0, 200)
|
|
self.assertVectorsAlmostEqual(self.nav.position(), expected)
|
|
|
|
def test_distance(self):
|
|
self.nav.forward(100)
|
|
expected = 100
|
|
self.assertAlmostEqual(self.nav.distance(Vec2D(0,0)), expected)
|
|
|
|
def test_radians_and_degrees(self):
|
|
self.nav.left(90)
|
|
self.assertAlmostEqual(self.nav.heading(), 90)
|
|
self.nav.radians()
|
|
self.assertAlmostEqual(self.nav.heading(), 1.57079633)
|
|
self.nav.degrees()
|
|
self.assertAlmostEqual(self.nav.heading(), 90)
|
|
|
|
def test_towards(self):
|
|
|
|
coordinates = [
|
|
# coordinates, expected
|
|
((100, 0), 0.0),
|
|
((100, 100), 45.0),
|
|
((0, 100), 90.0),
|
|
((-100, 100), 135.0),
|
|
((-100, 0), 180.0),
|
|
((-100, -100), 225.0),
|
|
((0, -100), 270.0),
|
|
((100, -100), 315.0),
|
|
]
|
|
|
|
for (x, y), expected in coordinates:
|
|
self.assertEqual(self.nav.towards(x, y), expected)
|
|
self.assertEqual(self.nav.towards((x, y)), expected)
|
|
self.assertEqual(self.nav.towards(Vec2D(x, y)), expected)
|
|
|
|
def test_heading(self):
|
|
|
|
self.nav.left(90)
|
|
self.assertAlmostEqual(self.nav.heading(), 90)
|
|
self.nav.left(45)
|
|
self.assertAlmostEqual(self.nav.heading(), 135)
|
|
self.nav.right(1.6)
|
|
self.assertAlmostEqual(self.nav.heading(), 133.4)
|
|
self.assertRaises(TypeError, self.nav.right, 'sdkfjdsf')
|
|
self.nav.reset()
|
|
|
|
rotations = [10, 20, 170, 300]
|
|
result = sum(rotations) % 360
|
|
for num in rotations:
|
|
self.nav.left(num)
|
|
self.assertEqual(self.nav.heading(), result)
|
|
self.nav.reset()
|
|
|
|
result = (360-sum(rotations)) % 360
|
|
for num in rotations:
|
|
self.nav.right(num)
|
|
self.assertEqual(self.nav.heading(), result)
|
|
self.nav.reset()
|
|
|
|
rotations = [10, 20, -170, 300, -210, 34.3, -50.2, -10, -29.98, 500]
|
|
sum_so_far = 0
|
|
for num in rotations:
|
|
if num < 0:
|
|
self.nav.right(abs(num))
|
|
else:
|
|
self.nav.left(num)
|
|
sum_so_far += num
|
|
self.assertAlmostEqual(self.nav.heading(), sum_so_far % 360)
|
|
|
|
def test_setheading(self):
|
|
self.nav.setheading(102.32)
|
|
self.assertAlmostEqual(self.nav.heading(), 102.32)
|
|
self.nav.setheading(-123.23)
|
|
self.assertAlmostEqual(self.nav.heading(), (-123.23) % 360)
|
|
self.nav.setheading(-1000.34)
|
|
self.assertAlmostEqual(self.nav.heading(), (-1000.34) % 360)
|
|
self.nav.setheading(300000)
|
|
self.assertAlmostEqual(self.nav.heading(), 300000%360)
|
|
|
|
def test_positions(self):
|
|
self.nav.forward(100)
|
|
self.nav.left(90)
|
|
self.nav.forward(-200)
|
|
self.assertVectorsAlmostEqual(self.nav.pos(), (100.0, -200.0))
|
|
|
|
def test_setx_and_sety(self):
|
|
self.nav.setx(-1023.2334)
|
|
self.nav.sety(193323.234)
|
|
self.assertVectorsAlmostEqual(self.nav.pos(), (-1023.2334, 193323.234))
|
|
|
|
def test_home(self):
|
|
self.nav.left(30)
|
|
self.nav.forward(-100000)
|
|
self.nav.home()
|
|
self.assertVectorsAlmostEqual(self.nav.pos(), (0,0))
|
|
self.assertAlmostEqual(self.nav.heading(), 0)
|
|
|
|
def test_distance_method(self):
|
|
self.assertAlmostEqual(self.nav.distance(30, 40), 50)
|
|
vec = Vec2D(0.22, .001)
|
|
self.assertAlmostEqual(self.nav.distance(vec), 0.22000227271553355)
|
|
another_turtle = turtle.TNavigator()
|
|
another_turtle.left(90)
|
|
another_turtle.forward(10000)
|
|
self.assertAlmostEqual(self.nav.distance(another_turtle), 10000)
|
|
|
|
|
|
class TestTPen(unittest.TestCase):
|
|
|
|
def test_pendown_and_penup(self):
|
|
|
|
tpen = turtle.TPen()
|
|
|
|
self.assertTrue(tpen.isdown())
|
|
tpen.penup()
|
|
self.assertFalse(tpen.isdown())
|
|
tpen.pendown()
|
|
self.assertTrue(tpen.isdown())
|
|
|
|
def test_showturtle_hideturtle_and_isvisible(self):
|
|
|
|
tpen = turtle.TPen()
|
|
|
|
self.assertTrue(tpen.isvisible())
|
|
tpen.hideturtle()
|
|
self.assertFalse(tpen.isvisible())
|
|
tpen.showturtle()
|
|
self.assertTrue(tpen.isvisible())
|
|
|
|
def test_teleport(self):
|
|
|
|
tpen = turtle.TPen()
|
|
|
|
for fill_gap_value in [True, False]:
|
|
tpen.penup()
|
|
tpen.teleport(100, 100, fill_gap=fill_gap_value)
|
|
self.assertFalse(tpen.isdown())
|
|
tpen.pendown()
|
|
tpen.teleport(-100, -100, fill_gap=fill_gap_value)
|
|
self.assertTrue(tpen.isdown())
|
|
|
|
|
|
class TestTurtleScreen(unittest.TestCase):
|
|
def test_save_raises_if_wrong_extension(self) -> None:
|
|
screen = unittest.mock.Mock()
|
|
|
|
msg = "Unknown file extension: '.png', must be one of {'.ps', '.eps'}"
|
|
with (
|
|
tempfile.TemporaryDirectory() as tmpdir,
|
|
self.assertRaisesRegex(ValueError, re.escape(msg))
|
|
):
|
|
turtle.TurtleScreen.save(screen, os.path.join(tmpdir, "file.png"))
|
|
|
|
def test_save_raises_if_parent_not_found(self) -> None:
|
|
screen = unittest.mock.Mock()
|
|
|
|
with tempfile.TemporaryDirectory() as tmpdir:
|
|
parent = os.path.join(tmpdir, "unknown_parent")
|
|
msg = f"The directory '{parent}' does not exist. Cannot save to it"
|
|
|
|
with self.assertRaisesRegex(FileNotFoundError, re.escape(msg)):
|
|
turtle.TurtleScreen.save(screen, os.path.join(parent, "a.ps"))
|
|
|
|
def test_save_raises_if_file_found(self) -> None:
|
|
screen = unittest.mock.Mock()
|
|
|
|
with tempfile.TemporaryDirectory() as tmpdir:
|
|
file_path = os.path.join(tmpdir, "some_file.ps")
|
|
with open(file_path, "w") as f:
|
|
f.write("some text")
|
|
|
|
msg = (
|
|
f"The file '{file_path}' already exists. To overwrite it use"
|
|
" the 'overwrite=True' argument of the save function."
|
|
)
|
|
with self.assertRaisesRegex(FileExistsError, re.escape(msg)):
|
|
turtle.TurtleScreen.save(screen, file_path)
|
|
|
|
def test_save_overwrites_if_specified(self) -> None:
|
|
screen = unittest.mock.Mock()
|
|
screen.cv.postscript.return_value = "postscript"
|
|
|
|
with tempfile.TemporaryDirectory() as tmpdir:
|
|
file_path = os.path.join(tmpdir, "some_file.ps")
|
|
with open(file_path, "w") as f:
|
|
f.write("some text")
|
|
|
|
turtle.TurtleScreen.save(screen, file_path, overwrite=True)
|
|
with open(file_path) as f:
|
|
assert f.read() == "postscript"
|
|
|
|
def test_save(self) -> None:
|
|
screen = unittest.mock.Mock()
|
|
screen.cv.postscript.return_value = "postscript"
|
|
|
|
with tempfile.TemporaryDirectory() as tmpdir:
|
|
file_path = os.path.join(tmpdir, "some_file.ps")
|
|
|
|
turtle.TurtleScreen.save(screen, file_path)
|
|
with open(file_path) as f:
|
|
assert f.read() == "postscript"
|
|
|
|
|
|
class TestModuleLevel(unittest.TestCase):
|
|
def test_all_signatures(self):
|
|
import inspect
|
|
|
|
known_signatures = {
|
|
'teleport':
|
|
'(x=None, y=None, *, fill_gap: bool = False) -> None',
|
|
'undo': '()',
|
|
'goto': '(x, y=None)',
|
|
'bgcolor': '(*args)',
|
|
'pen': '(pen=None, **pendict)',
|
|
}
|
|
|
|
for name in known_signatures:
|
|
with self.subTest(name=name):
|
|
obj = getattr(turtle, name)
|
|
sig = inspect.signature(obj)
|
|
self.assertEqual(str(sig), known_signatures[name])
|
|
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main()
|