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import unittest
class PerlinTestCase(unittest.TestCase):
def test_perlin_1d_range(self):
from noise import pnoise1
for i in range(-10000, 10000):
x = i * 0.49
n = pnoise1(x)
self.assertTrue(-1.0 <= n <= 1.0, (x, n))
def test_perlin_1d_octaves_range(self):
from noise import pnoise1
for i in range(-1000, 1000):
for o in range(10):
x = i * 0.49
n = pnoise1(x, octaves=o + 1)
self.assertTrue(-1.0 <= n <= 1.0, (x, n))
def test_perlin_1d_base(self):
from noise import pnoise1
self.assertEqual(pnoise1(0.5), pnoise1(0.5, base=0))
self.assertNotEqual(pnoise1(0.5), pnoise1(0.5, base=5))
self.assertNotEqual(pnoise1(0.5, base=5), pnoise1(0.5, base=1))
def test_perlin_2d_range(self):
from noise import pnoise2
for i in range(-10000, 10000):
x = i * 0.49
y = -i * 0.67
n = pnoise2(x, y)
self.assertTrue(-1.0 <= n <= 1.0, (x, y, n))
def test_perlin_2d_octaves_range(self):
from noise import pnoise2
for i in range(-1000, 1000):
for o in range(10):
x = -i * 0.49
y = i * 0.67
n = pnoise2(x, y, octaves=o + 1)
self.assertTrue(-1.0 <= n <= 1.0, (x, n))
def test_perlin_2d_base(self):
from noise import pnoise2
x, y = 0.73, 0.27
self.assertEqual(pnoise2(x, y), pnoise2(x, y, base=0))
self.assertNotEqual(pnoise2(x, y), pnoise2(x, y, base=5))
self.assertNotEqual(pnoise2(x, y, base=5), pnoise2(x, y, base=1))
def test_perlin_3d_range(self):
from noise import pnoise3
for i in range(-10000, 10000):
x = -i * 0.49
y = i * 0.67
z = -i * 0.727
n = pnoise3(x, y, z)
self.assertTrue(-1.0 <= n <= 1.0, (x, y, z, n))
def test_perlin_3d_octaves_range(self):
from noise import pnoise3
for i in range(-1000, 1000):
x = i * 0.22
y = -i * 0.77
z = -i * 0.17
for o in range(10):
n = pnoise3(x, y, z, octaves=o + 1)
self.assertTrue(-1.0 <= n <= 1.0, (x, y, z, n))
def test_perlin_3d_base(self):
from noise import pnoise3
x, y, z = 0.1, 0.7, 0.33
self.assertEqual(pnoise3(x, y, z), pnoise3(x, y, z, base=0))
self.assertNotEqual(pnoise3(x, y, z), pnoise3(x, y, z, base=5))
self.assertNotEqual(pnoise3(x, y, z, base=5), pnoise3(x, y, z, base=1))
class SimplexTestCase(unittest.TestCase):
def test_simplex_2d_range(self):
from noise import snoise2
for i in range(-10000, 10000):
x = i * 0.49
y = -i * 0.67
n = snoise2(x, y)
self.assertTrue(-1.0 <= n <= 1.0, (x, y, n))
def test_simplex_2d_octaves_range(self):
from noise import snoise2
for i in range(-1000, 1000):
for o in range(10):
x = -i * 0.49
y = i * 0.67
n = snoise2(x, y, octaves=o + 1)
self.assertTrue(-1.0 <= n <= 1.0, (x, n))
def test_simplex_3d_range(self):
from noise import snoise3
for i in range(-10000, 10000):
x = i * 0.31
y = -i * 0.7
z = i * 0.19
n = snoise3(x, y, z)
self.assertTrue(-1.0 <= n <= 1.0, (x, y, z, n))
def test_simplex_3d_octaves_range(self):
from noise import snoise3
for i in range(-1000, 1000):
x = -i * 0.12
y = i * 0.55
z = i * 0.34
for o in range(10):
n = snoise3(x, y, z, octaves=o + 1)
self.assertTrue(-1.0 <= n <= 1.0, (x, y, z, o+1, n))
def test_simplex_4d_range(self):
from noise import snoise4
for i in range(-10000, 10000):
x = i * 0.88
y = -i * 0.11
z = -i * 0.57
w = i * 0.666
n = snoise4(x, y, z, w)
self.assertTrue(-1.0 <= n <= 1.0, (x, y, z, w, n))
def test_simplex_4d_octaves_range(self):
from noise import snoise4
for i in range(-1000, 1000):
x = -i * 0.12
y = i * 0.55
z = i * 0.34
w = i * 0.21
for o in range(10):
n = snoise4(x, y, z, w, octaves=o + 1)
self.assertTrue(-1.0 <= n <= 1.0, (x, y, z, w, o+1, n))
if __name__ == '__main__':
unittest.main()
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