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Differential D3718 Diff 16593 binaries/data/mods/public/simulation/components/tests/test_Math.js

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binaries/data/mods/public/simulation/components/tests/test_Math.js

/** /**
* Tests for consistent and correct math results * Tests for consistent and correct math results
*/ */
// +0 is different than -0, but standard equality won't test that // +0 is different than -0, but standard equality won't test that
function isNegativeZero(z) { return z === 0 && 1/z === -Infinity; } function isNegativeZero(z) { return z === 0 && 1/z === -Infinity; }
function isPositiveZero(z) { return z === 0 && 1/z === Infinity; } function isPositiveZero(z) { return z === 0 && 1/z === Infinity; }
// rounding // rounding
TS_ASSERT_EQUALS(0.1+0.2, 0.30000000000000004); TS_ASSERT_EQUALS(0.1+0.2, 0.30000000000000004);
TS_ASSERT_EQUALS(0.1+0.7+0.3, 1.0999999999999999); TS_ASSERT_EQUALS(0.1+0.7+0.3, 1.0999999999999999);
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TS_ASSERT_EQUALS(Math.sqrt(Infinity), Infinity); TS_ASSERT_EQUALS(Math.sqrt(Infinity), Infinity);
TS_ASSERT_EQUALS(Math.sqrt(1e-323), 3.1434555694052576e-162); TS_ASSERT_EQUALS(Math.sqrt(1e-323), 3.1434555694052576e-162);
// square // square
TS_ASSERT_UNEVAL_EQUALS(Math.square(NaN), NaN); TS_ASSERT_UNEVAL_EQUALS(Math.square(NaN), NaN);
TS_ASSERT(isPositiveZero(Math.square(0))); TS_ASSERT(isPositiveZero(Math.square(0)));
TS_ASSERT(isPositiveZero(Math.square(-0))); TS_ASSERT(isPositiveZero(Math.square(-0)));
TS_ASSERT_EQUALS(Math.square(Infinity), Infinity); TS_ASSERT_EQUALS(Math.square(Infinity), Infinity);
TS_ASSERT_EQUALS(Math.square(1.772979291871526e-81),3.143455569405258e-162); TS_ASSERT_EQUALS(Math.square(1.772979291871526e-81), 3.143455569405258e-162);
TS_ASSERT_EQUALS(Math.square(1e+155), Infinity); TS_ASSERT_EQUALS(Math.square(1e+155), Infinity);
TS_ASSERT_UNEVAL_EQUALS(Math.square(1), 1); TS_ASSERT_UNEVAL_EQUALS(Math.square(1), 1);
TS_ASSERT_UNEVAL_EQUALS(Math.square(20), 400); TS_ASSERT_UNEVAL_EQUALS(Math.square(20), 400);
TS_ASSERT_UNEVAL_EQUALS(Math.square(300), 90000); TS_ASSERT_UNEVAL_EQUALS(Math.square(300), 90000);
TS_ASSERT_UNEVAL_EQUALS(Math.square(4000), 16000000); TS_ASSERT_UNEVAL_EQUALS(Math.square(4000), 16000000);
TS_ASSERT_UNEVAL_EQUALS(Math.square(50000), 2500000000); TS_ASSERT_UNEVAL_EQUALS(Math.square(50000), 2500000000);
TS_ASSERT_UNEVAL_EQUALS(Math.square(-3), 9); TS_ASSERT_UNEVAL_EQUALS(Math.square(-3), 9);
TS_ASSERT_UNEVAL_EQUALS(Math.square(-8), 64); TS_ASSERT_UNEVAL_EQUALS(Math.square(-8), 64);
TS_ASSERT_UNEVAL_EQUALS(Math.square(0.123), 0.015129); TS_ASSERT_UNEVAL_EQUALS(Math.square(0.123), 0.015129);
// euclid distance // euclid distance
TS_ASSERT_UNEVAL_EQUALS(Math.euclidDistance2D(0, 0, 3, 4), 5); TS_ASSERT_UNEVAL_EQUALS(Math.euclidDistance2D(0, 0, 3, 4), 5);
TS_ASSERT_UNEVAL_EQUALS(Math.euclidDistance2D(-4, -4, -5, -4), 1); TS_ASSERT_UNEVAL_EQUALS(Math.euclidDistance2D(-4, -4, -5, -4), 1);
TS_ASSERT_UNEVAL_EQUALS(Math.euclidDistance2D(1e+140, 1e+140, 0, 0), 1.414213562373095e+140); TS_ASSERT_UNEVAL_EQUALS(Math.euclidDistance2D(1e+140, 1e+140, 0, 0), 1.414213562373095e+140);
TS_ASSERT_UNEVAL_EQUALS(Math.euclidDistance3D(0, 0, 0, 20, 48, 165), 173); TS_ASSERT_UNEVAL_EQUALS(Math.euclidDistance3D(0, 0, 0, 20, 48, 165), 173);
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