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operators refactoring
.NET Test / .NET tests (push) Successful in 2m11s
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This commit is contained in:
just
2026-09-24 00:39:59 +04:00
parent 3de9457fdc
commit ac93744579
26 changed files with 651 additions and 334 deletions
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1-tests/Just.PreciseMath.Tests/PreciseMathLogTests.cs
+9 -9
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@@ -17,10 +17,10 @@ public class PreciseMathLogTests
foreach (double value in values)
{
DoubleDouble expected = new(Math.Log(value));
AssertBits(DDMath.Log(new DoubleDouble(value)), expected.High, 0.0);
AssertBits(DoubleDouble.Log(new DoubleDouble(value)), expected.High, 0.0);
}
DoubleDouble negative = DoubleDouble.FromComponents(-1.0, Math.ScaleB(1.0, -54));
AssertBits(DDMath.Log(negative), double.NaN, 0.0);
AssertBits(DoubleDouble.Log(negative), double.NaN, 0.0);
}
[Theory]
@@ -31,7 +31,7 @@ public class PreciseMathLogTests
// 2200 digits and checked with Fraction. No binary64 log supplies the oracle.
DoubleDouble input = DoubleDouble.FromComponents(high, low);
(Units(input.High) + Units(input.Low)).ShouldBe(Units(high) + Units(low));
DoubleDouble actual = DDMath.Log(input);
DoubleDouble actual = DoubleDouble.Log(input);
AssertReferenceBound(actual, reference, 1, $"{label}: ({high:R}, {low:R})");
if (input == DoubleDouble.One)
{
@@ -51,7 +51,7 @@ public class PreciseMathLogTests
for (int exponent = -1074; exponent <= 1023; ++exponent)
{
DoubleDouble input = new(Math.ScaleB(1.0, exponent));
AssertReferenceBound(DDMath.Log(input), LogReferenceData.Ln2, exponent, $"2^{exponent}");
AssertReferenceBound(DoubleDouble.Log(input), LogReferenceData.Ln2, exponent, $"2^{exponent}");
}
}
@@ -63,7 +63,7 @@ public class PreciseMathLogTests
{
// The legacy Log(1e308) formed u+value and overflowed. The finite
// kernel must reduce the mantissa before constructing its denominator.
DoubleDouble actual = DDMath.Log(new DoubleDouble(input));
DoubleDouble actual = DoubleDouble.Log(new DoubleDouble(input));
DoubleDouble.IsFinite(actual).ShouldBeTrue();
actual.Low.ShouldNotBe(0.0);
DoubleDouble.IsCanonical(actual).ShouldBeTrue();
@@ -75,12 +75,12 @@ public class PreciseMathLogTests
{
foreach (double sign in new[] { -1.0, 1.0 })
{
AssertBits(DDMath.Log(DoubleDouble.FromComponents(1.0, sign * double.Epsilon)),
AssertBits(DoubleDouble.Log(DoubleDouble.FromComponents(1.0, sign * double.Epsilon)),
sign * double.Epsilon, 0.0);
double delta = sign * Math.ScaleB(1.0, -500);
// ln(1+d) = d-d^2/2+O(d^3). Here the cubic tail is below half
// the minimum subnormal, so these two binary components are exact.
AssertBits(DDMath.Log(DoubleDouble.FromComponents(1.0, delta)),
AssertBits(DoubleDouble.Log(DoubleDouble.FromComponents(1.0, delta)),
delta, -Math.ScaleB(1.0, -1001));
}
}
@@ -89,8 +89,8 @@ public class PreciseMathLogTests
public void ArbitraryPairsAreNormalizedByThePublicFactoryBeforeLog()
{
DoubleDouble positive = DoubleDouble.FromComponents(0.0, 2.0);
AssertReferenceBound(DDMath.Log(positive), LogReferenceData.Ln2, 1, "zero-high public construction");
AssertBits(DDMath.Log(DoubleDouble.FromComponents(0.0, -2.0)), double.NaN, 0.0);
AssertReferenceBound(DoubleDouble.Log(positive), LogReferenceData.Ln2, 1, "zero-high public construction");
AssertBits(DoubleDouble.Log(DoubleDouble.FromComponents(0.0, -2.0)), double.NaN, 0.0);
}
private static void AssertReferenceBound(DoubleDouble actual, string reference, int factor, string context)