added sanity checks

2026-09-18 14:10:24 +04:00
parent b5a8bd2580
commit 5797bf4884
44 changed files with 419 additions and 146 deletions
@@ -0,0 +1,27 @@
+namespace Just.PreciseMath.Tests.SanityChecks;
+
+public class DoubleDoubleAdditionChecks
+{
+    public static IEnumerable<TheoryDataRow<DoubleDouble, DoubleDouble, DoubleDouble>> ReferenceCases =>
+    [
+        (new DoubleDouble(1.0), new DoubleDouble(1.0), new DoubleDouble(2.0)),
+        (new DoubleDouble(1.0), new DoubleDouble(2.0), new DoubleDouble(3.0)),
+        (new DoubleDouble(1.25), new DoubleDouble(2.5), new DoubleDouble(3.75)),
+        (new DoubleDouble(65535.0), new DoubleDouble(1.0), new DoubleDouble(65536.0)),
+        (DoubleDouble.Parse("812563124576179134546", System.Globalization.CultureInfo.InvariantCulture), DoubleDouble.Parse("-812563124576179134504", System.Globalization.CultureInfo.InvariantCulture), new DoubleDouble(42.0)),
+        (DoubleDouble.Parse("812563124576179134546", System.Globalization.CultureInfo.InvariantCulture), new DoubleDouble(127.0), DoubleDouble.Parse("812563124576179134673", System.Globalization.CultureInfo.InvariantCulture)),
+        (DoubleDouble.Parse("812563124576179134546", System.Globalization.CultureInfo.InvariantCulture), new DoubleDouble(27.0), DoubleDouble.Parse("812563124576179134573", System.Globalization.CultureInfo.InvariantCulture)),
+        (DoubleDouble.Parse("812563124576179134546", System.Globalization.CultureInfo.InvariantCulture), new DoubleDouble(2.70), DoubleDouble.Parse("812563124576179134548.7", System.Globalization.CultureInfo.InvariantCulture)),
+    ];
+
+    [Theory]
+    [MemberData(nameof(ReferenceCases))]
+    public void AdditionShouldProduceExpectedResults(DoubleDouble left, DoubleDouble right, DoubleDouble expected)
+    {
+        DoubleDouble result = left + right;
+
+        result.High.ShouldBe(expected.High);
+        result.Low.ShouldBe(expected.Low);
+        result.ShouldBe(expected);
+    }
+}