| 1 | """ |
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| 2 | Test of calculate_point within mandelbrot.py |
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| 3 | """ |
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| 4 | |
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| 5 | import unittest |
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| 6 | import Numeric |
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| 7 | from mandelbrot import calculate_point |
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| 8 | #from mandel_ext import calculate_point |
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| 9 | |
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| 10 | |
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| 11 | #------------------------------------------------------------- |
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| 12 | |
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| 13 | class TestCase(unittest.TestCase): |
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| 14 | |
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| 15 | def setUp(self): |
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| 16 | pass |
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| 17 | |
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| 18 | |
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| 19 | def test_basic(self): |
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| 20 | """Test that c==0 always returns kmax |
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| 21 | """ |
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| 22 | |
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| 23 | c = complex(0, 0) |
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| 24 | |
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| 25 | for kmax in [0,1,2,3,4,10, 20, 33, 45, 100]: |
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| 26 | count = calculate_point(c, kmax) |
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| 27 | assert count == kmax |
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| 28 | |
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| 29 | |
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| 30 | def test_points_clearly_outside_set(self): |
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| 31 | |
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| 32 | for kmax in [1,2,3,5,10,20,100]: |
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| 33 | for c in [complex(5, 4), complex(2,1), complex(-2,1), |
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| 34 | complex(2,-1), complex(-2,-1)]: |
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| 35 | count = calculate_point(c, kmax) |
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| 36 | assert count == 1 |
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| 37 | |
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| 38 | |
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| 39 | def test_arbitrary_points(self): |
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| 40 | for kmax in [10,20,100]: |
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| 41 | c = complex(1, 1.5) |
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| 42 | count = calculate_point(c, kmax) |
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| 43 | assert count == 2 |
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| 44 | |
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| 45 | c = complex(-1, 1.5) |
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| 46 | count = calculate_point(c, kmax) |
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| 47 | assert count == 2 |
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| 48 | |
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| 49 | c = complex(-1, -1.5) |
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| 50 | count = calculate_point(c, kmax) |
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| 51 | assert count == 2 |
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| 52 | |
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| 53 | c = complex(1, -1.5) |
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| 54 | count = calculate_point(c, kmax) |
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| 55 | assert count == 2 |
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| 56 | |
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| 57 | c = complex(1, 0) |
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| 58 | count = calculate_point(c, kmax) |
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| 59 | assert count == 3 |
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| 60 | |
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| 61 | c = complex(0.2, 1) |
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| 62 | count = calculate_point(c, kmax) |
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| 63 | assert count == 4 |
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| 64 | |
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| 65 | c = complex(0.2, 0.7) |
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| 66 | count = calculate_point(c, kmax) |
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| 67 | assert count == 6 |
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| 68 | |
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| 69 | c = complex(-0.2, 0.9) |
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| 70 | count = calculate_point(c, kmax) |
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| 71 | assert count == 9 |
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| 72 | |
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| 73 | |
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| 74 | def test_another_known_point(self): |
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| 75 | c = complex(0.5, 0.5) |
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| 76 | count = calculate_point(c, 256) |
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| 77 | assert count == 5 |
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| 78 | |
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| 79 | #------------------------------------------------------------- |
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| 80 | if __name__ == "__main__": |
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| 81 | |
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| 82 | mysuite = unittest.makeSuite(TestCase,'test') |
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| 83 | runner = unittest.TextTestRunner() |
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| 84 | runner.run(mysuite) |
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