30 lines
2.0 KiB
C#
30 lines
2.0 KiB
C#
namespace Just.PreciseMath.Tests.SanityChecks;
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public class DoubleDoubleMultiplicationChecks
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{
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public static IEnumerable<TheoryDataRow<DoubleDouble, DoubleDouble, DoubleDouble>> ReferenceCases =>
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[
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(new DoubleDouble(1.0), new DoubleDouble(1.0), new DoubleDouble(1.0)),
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(new DoubleDouble(2.0), new DoubleDouble(3.0), new DoubleDouble(6.0)),
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(new DoubleDouble(1.25), new DoubleDouble(2.5), new DoubleDouble(3.125)),
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(new DoubleDouble(-1.25), new DoubleDouble(2.5), new DoubleDouble(-3.125)),
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(new DoubleDouble(65535.0), new DoubleDouble(65536.0), new DoubleDouble(4294901760.0)),
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(new DoubleDouble(65536.0), new DoubleDouble(65536.0), new DoubleDouble(4294967296.0)),
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(DoubleDouble.Parse("812563124576179134546", System.Globalization.CultureInfo.InvariantCulture), new DoubleDouble(2.0), DoubleDouble.Parse("1625126249152358269092", System.Globalization.CultureInfo.InvariantCulture)),
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(DoubleDouble.Parse("812563124576179134546", System.Globalization.CultureInfo.InvariantCulture), new DoubleDouble(0.5), DoubleDouble.Parse("406281562288089567273", System.Globalization.CultureInfo.InvariantCulture)),
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(DoubleDouble.Parse("812563124576179134546", System.Globalization.CultureInfo.InvariantCulture), new DoubleDouble(27.0), DoubleDouble.Parse("21939204363556836632742", System.Globalization.CultureInfo.InvariantCulture)),
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(DoubleDouble.Parse("812563124576179134546", System.Globalization.CultureInfo.InvariantCulture), new DoubleDouble(127.0), DoubleDouble.Parse("103195516821174750087342", System.Globalization.CultureInfo.InvariantCulture)),
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];
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[Theory]
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[MemberData(nameof(ReferenceCases))]
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public void MultiplicationShouldProduceExpectedResults(DoubleDouble left, DoubleDouble right, DoubleDouble expected)
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{
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DoubleDouble result = left * right;
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result.High.ShouldBe(expected.High);
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result.Low.ShouldBe(expected.Low);
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result.ShouldBe(expected);
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}
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}
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