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from __future__ import division, print_function
import doctest
import os
import sys
import unittest
sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))
import pytweening
TWEENS = [
'linear',
'easeInQuad',
'easeOutQuad',
'easeInOutQuad',
'easeInCubic',
'easeOutCubic',
'easeInOutCubic',
'easeInQuart',
'easeOutQuart',
'easeInOutQuart',
'easeInQuint',
'easeOutQuint',
'easeInOutQuint',
'easeInSine',
'easeOutSine',
'easeInOutSine',
'easeInExpo',
'easeOutExpo',
'easeInOutExpo',
'easeInCirc',
'easeOutCirc',
'easeInOutCirc',
'easeInElastic',
'easeOutElastic',
'easeInOutElastic',
'easeInBack',
'easeOutBack',
'easeInOutBack',
'easeInBounce',
'easeOutBounce',
'easeInOutBounce',
'easeInPoly',
'easeOutPoly',
'easeInOutPoly',
]
# https://stackoverflow.com/q/6655724/
class CustomAssertions(object):
def assertFuncValue(self, func, param, expected, funcname='function', extra_msg='', **kwargs):
"""Asserts that func(param) == expected.
Optionally receives the function name, used in the error message
"""
value = func(param)
if extra_msg:
extra_msg = ' ' + extra_msg
self.assertAlmostEqual(
value, expected,
msg='{0}({1}) should be {2}, but was {3}.'.format(funcname, param, expected, value, extra_msg),
**kwargs)
class LineTests(unittest.TestCase):
def test_startAndEndCoordinates(self):
points = [(79, 16), (-67, -44), (-95, -56), (98, 47), (72, -6), (97, -63), (-38, -39), (91, -31), (-35, 96), (-72, 64), (-42, 11), (-11, 8), (-8, -35), (4, -27), (-51, -46), (33, -95), (94, -96), (-94, -77), (6, 28), (-82, -48)]
for startPoint in points:
for endPoint in points:
linePoints = pytweening.getLine(startPoint[0], startPoint[1], endPoint[0], endPoint[1])
self.assertEqual(startPoint, linePoints[0], 'Start point returned from getLine() is not the same as the original start point.')
self.assertEqual(endPoint, linePoints[-1], 'End point returned from getLine() is not the same as the original end point.')
x, y = pytweening.getPointOnLine(startPoint[0], startPoint[1], endPoint[0], endPoint[1], 0.0)
self.assertEqual((int(x), int(y)), (linePoints[0][0], linePoints[0][1]), 'Start point of getPointOnLine() is not the same as the line\'s start point.')
x, y = pytweening.getPointOnLine(startPoint[0], startPoint[1], endPoint[0], endPoint[1], 1.0)
self.assertEqual((int(x), int(y)), (linePoints[-1][0], linePoints[-1][1]), 'End point of getPointOnLine() is not the same as the line\'s end point.')
class TestAll(unittest.TestCase, CustomAssertions):
def test_zero(self):
delta = 2 ** -15 # i.e. VERY small
for name in TWEENS:
func = getattr(pytweening, name)
if name in ['easeInElastic', 'easeInOutElastic']:
delta = 2 ** -11 # around 0.0005
elif name in ['easeInBounce', 'easeInOutBounce']:
delta = 2 ** -7 # around 0.0078
self.assertFuncValue(func, 0, 0, name, delta=delta)
self.assertFuncValue(func, 0.0, 0, name, delta=delta)
def test_one(self):
delta = 2 ** -15 # i.e. VERY small
for name in TWEENS:
func = getattr(pytweening, name)
if name in ['easeOutElastic', 'easeInOutElastic']:
delta = 2 ** -11 # around 0.0005
elif name in ['easeOutBounce', 'easeInOutBounce']:
delta = 2 ** -7 # around 0.0078
self.assertFuncValue(func, 1, 1, name, delta=delta)
self.assertFuncValue(func, 1.0, 1, name, delta=delta)
def test_halfway(self):
# Check that all the easeInOut* functions are halfway when passed 0.5.
delta = 2 ** -15 # i.e. VERY small
for name in TWEENS:
func = getattr(pytweening, name)
if name.startswith('easeInOut'):
self.assertFuncValue(func, 0.5, 0.5, name, delta=delta)
def test_wrong_input(self):
# We've removed the 0.0 to 1.0 range check.
"""
for name in TWEENS:
func = getattr(pytweening, name)
for input in [-1, -0.5, 1.5, 2]:
kwargs = {}
if sys.version_info.major >= 3 and sys.version_info.minor >= 3:
# msg parameter was added in Python 3.3:
# https://docs.python.org/3/library/unittest.html#unittest.TestCase.assertRaises
kwargs['msg'] = '{0}({1}) should raise ValueError'.format(name, input)
with self.assertRaises(ValueError, **kwargs):
func(input)
"""
def test_iterators(self):
# Basic test that just calls the iterators and gets all their values in a list:
list(pytweening.iterLinear(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseInQuad(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseOutQuad(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseInOutQuad(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseInCubic(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseOutCubic(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseInOutCubic(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseInQuart(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseOutQuart(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseInOutQuart(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseInQuint(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseOutQuint(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseInOutQuint(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseInPoly(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseOutPoly(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseInOutPoly(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseInSine(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseOutSine(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseInOutSine(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseInExpo(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseOutExpo(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseInOutExpo(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseInCirc(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseOutCirc(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseInOutCirc(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseInElastic(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseOutElastic(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseInOutElastic(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseInBack(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseOutBack(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseInOutBack(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseInBounce(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseOutBounce(0, 0, 100, 100, 0.01))
list(pytweening.iterEaseInOutBounce(0, 0, 100, 100, 0.01))
if __name__ == '__main__':
unittest.main()
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