TESTS

2026-06-12 23:34:00 +07:00
parent 790a5f8e10
commit d7e9bb7b5b
27 changed files with 1167 additions and 1020 deletions
--- a/QWERTYkez.Mensura.Tests/CollectionsMultiplyExtensionsTest.cs
+++ b/QWERTYkez.Mensura.Tests/CollectionsMultiplyExtensionsTest.cs
@@ -0,0 +1,335 @@
+namespace QWERTYkez.Mensura.Tests
+{
+    public class CollectionsMultiplyExtensionsTest
+    {
+        private const double Tolerance = 1e-12;
+        private static readonly Length scalarUnit = Length.Meter;            // 1000 mm
+        private static readonly double scalarDouble = 2.0;
+
+        // Коллекции единиц
+        private static readonly Length[] unitsArray = [Length.Meter, Length._MilliMeter];
+        private static readonly Length?[] nullableUnitsArray = [Length.Meter, null, Length._MilliMeter];
+        private static readonly List<Length> unitsList = [Length.Meter, Length._MilliMeter];
+        private static readonly List<Length?> nullableUnitsList = [Length.Meter, null, Length._MilliMeter];
+
+        // Коллекции double
+        private static readonly double[] doubleArray = [5.0, 3.0];
+        private static readonly double?[] nullableDoubleArray = [5.0, null, 3.0];
+        private static readonly List<double> doubleList = [5.0, 3.0];
+        private static readonly List<double?> nullableDoubleList = [5.0, null, 3.0];
+
+        // ====================== 1. T[] * double ======================
+        [Fact]
+        public void Mul_TArray_Double_Returns_TArray()
+        {
+            var result = unitsArray.Mul<Length>(scalarDouble);
+            Assert.Equal(2, result.Length);
+            Assert.Equal(1000 * 2, (double)result[0], Tolerance);
+            Assert.Equal(1 * 2, (double)result[1], Tolerance);
+        }
+
+        [Fact]
+        public void Mul_TArray_Double_ByZero_Works()
+        {
+            var result = unitsArray.Mul<Length>(0.0);
+            Assert.Equal(0, (double)result[0], Tolerance);
+            Assert.Equal(0, (double)result[1], Tolerance);
+        }
+
+        // ====================== 2. T?[] * double ======================
+        [Fact]
+        public void Mul_NullableTArray_Double_Returns_NullableTArray()
+        {
+            var result = nullableUnitsArray.Mul<Length>(scalarDouble);
+            Assert.Equal(3, result.Length);
+            Assert.Equal(1000 * 2, (double)result[0]!, Tolerance);
+            Assert.Equal(0, (double)result[1]!, Tolerance);
+            Assert.Equal(1 * 2, (double)result[2]!, Tolerance);
+        }
+
+        // ====================== 3. double * T[] ======================
+        [Fact]
+        public void Mul_Double_TArray_Returns_TArray()
+        {
+            var result = scalarDouble.Mul<Length>(unitsArray);
+            Assert.Equal(2, result.Length);
+            Assert.Equal(2 * 1000, (double)result[0], Tolerance);
+            Assert.Equal(2 * 1, (double)result[1], Tolerance);
+        }
+
+        // ====================== 4. double * T?[] ======================
+        [Fact]
+        public void Mul_Double_NullableTArray_Returns_NullableTArray()
+        {
+            var result = scalarDouble.Mul<Length>(nullableUnitsArray);
+            Assert.Equal(3, result.Length);
+            Assert.Equal(2 * 1000, (double)result[0]!, Tolerance);
+            Assert.Equal(0, (double)result[1]!, Tolerance);
+            Assert.Equal(2 * 1, (double)result[2]!, Tolerance);
+        }
+
+        // ====================== 5. List<T> * double ======================
+        [Fact]
+        public void Mul_ListT_Double_Returns_ListT()
+        {
+            var result = unitsList.Mul<Length>(scalarDouble);
+            Assert.Equal(2, result.Count);
+            Assert.Equal(1000 * 2, (double)result[0], Tolerance);
+            Assert.Equal(1 * 2, (double)result[1], Tolerance);
+        }
+
+        // ====================== 6. List<T?> * double ======================
+        [Fact]
+        public void Mul_ListNullableT_Double_Returns_ListNullableT()
+        {
+            var result = nullableUnitsList.Mul<Length>(scalarDouble);
+            Assert.Equal(3, result.Count);
+            Assert.Equal(1000 * 2, (double)result[0]!, Tolerance);
+            Assert.Equal(0, (double)result[1]!, Tolerance);
+            Assert.Equal(1 * 2, (double)result[2]!, Tolerance);
+        }
+
+        // ====================== 7. double * List<T> ======================
+        [Fact]
+        public void Mul_Double_ListT_Returns_ListT()
+        {
+            var result = scalarDouble.Mul<Length>(unitsList);
+            Assert.Equal(2, result.Count);
+            Assert.Equal(2 * 1000, (double)result[0], Tolerance);
+            Assert.Equal(2 * 1, (double)result[1], Tolerance);
+        }
+
+        // ====================== 8. double * List<T?> ======================
+        [Fact]
+        public void Mul_Double_ListNullableT_Returns_ListNullableT()
+        {
+            var result = scalarDouble.Mul<Length>(nullableUnitsList);
+            Assert.Equal(3, result.Count);
+            Assert.Equal(2 * 1000, (double)result[0]!, Tolerance);
+            Assert.Equal(0, (double)result[1]!, Tolerance);
+            Assert.Equal(2 * 1, (double)result[2]!, Tolerance);
+        }
+
+        // ====================== 9. IReadOnlyCollection<T> * double (Span) ======================
+        [Fact]
+        public void Mul_IReadOnlyCollectionT_Double_Span()
+        {
+            Span<Length> dest = new Length[2];
+            ((IReadOnlyCollection<Length>)unitsArray).Mul<Length>(scalarDouble, dest);
+            Assert.Equal(1000 * 2, (double)dest[0], Tolerance);
+            Assert.Equal(1 * 2, (double)dest[1], Tolerance);
+        }
+
+        // ====================== 10. IReadOnlyCollection<T?> * double (Span) ======================
+        [Fact]
+        public void Mul_IReadOnlyCollectionNullableT_Double_Span()
+        {
+            Span<Length?> dest = new Length?[3];
+            ((IReadOnlyCollection<Length?>)nullableUnitsArray).Mul<Length>(scalarDouble, dest);
+            Assert.Equal(1000 * 2, (double)dest[0]!, Tolerance);
+            Assert.Equal(0, (double)dest[1]!, Tolerance);
+            Assert.Equal(1 * 2, (double)dest[2]!, Tolerance);
+        }
+
+        // ====================== 11. double * IReadOnlyCollection<T> (Span) ======================
+        [Fact]
+        public void Mul_Double_IReadOnlyCollectionT_Span()
+        {
+            Span<Length> dest = new Length[2];
+            scalarDouble.Mul<Length>((IReadOnlyCollection<Length>)unitsArray, dest);
+            Assert.Equal(2 * 1000, (double)dest[0], Tolerance);
+            Assert.Equal(2 * 1, (double)dest[1], Tolerance);
+        }
+
+        // ====================== 12. double * IReadOnlyCollection<T?> (Span) ======================
+        [Fact]
+        public void Mul_Double_IReadOnlyCollectionNullableT_Span()
+        {
+            Span<Length?> dest = new Length?[3];
+            scalarDouble.Mul<Length>((IReadOnlyCollection<Length?>)nullableUnitsArray, dest);
+            Assert.Equal(2 * 1000, (double)dest[0]!, Tolerance);
+            Assert.Equal(0, (double)dest[1]!, Tolerance);
+            Assert.Equal(2 * 1, (double)dest[2]!, Tolerance);
+        }
+
+        // ====================== 13. IEnumerable<T> * double ======================
+        [Fact]
+        public void Mul_IEnumerableT_Double_Returns_IEnumerableT()
+        {
+            var result = ((IEnumerable<Length>)unitsArray).Mul<Length>(scalarDouble).ToList();
+            Assert.Equal(2, result.Count);
+            Assert.Equal(1000 * 2, (double)result[0], Tolerance);
+            Assert.Equal(1 * 2, (double)result[1], Tolerance);
+        }
+
+        // ====================== 14. IEnumerable<T?> * double ======================
+        [Fact]
+        public void Mul_IEnumerableNullableT_Double_Returns_IEnumerableNullableT()
+        {
+            var result = ((IEnumerable<Length?>)nullableUnitsArray).Mul<Length>(scalarDouble).ToList();
+            Assert.Equal(3, result.Count);
+            Assert.Equal(1000 * 2, (double)result[0]!, Tolerance);
+            Assert.Equal(0, (double)result[1]!, Tolerance);
+            Assert.Equal(1 * 2, (double)result[2]!, Tolerance);
+        }
+
+        // ====================== 15. double * IEnumerable<T> ======================
+        [Fact]
+        public void Mul_Double_IEnumerableT_Returns_IEnumerableT()
+        {
+            var result = scalarDouble.Mul<Length>((IEnumerable<Length>)unitsArray).ToList();
+            Assert.Equal(2, result.Count);
+            Assert.Equal(2 * 1000, (double)result[0], Tolerance);
+            Assert.Equal(2 * 1, (double)result[1], Tolerance);
+        }
+
+        // ====================== 16. double * IEnumerable<T?> ======================
+        [Fact]
+        public void Mul_Double_IEnumerableNullableT_Returns_IEnumerableNullableT()
+        {
+            var result = scalarDouble.Mul<Length>((IEnumerable<Length?>)nullableUnitsArray).ToList();
+            Assert.Equal(3, result.Count);
+            Assert.Equal(2 * 1000, (double)result[0]!, Tolerance);
+            Assert.Equal(0, (double)result[1]!, Tolerance);
+            Assert.Equal(2 * 1, (double)result[2]!, Tolerance);
+        }
+
+        // ====================== 17. double[] * T ======================
+        [Fact]
+        public void Mul_DoubleArray_T_Returns_TArray()
+        {
+            var result = doubleArray.Mul(scalarUnit);
+            Assert.Equal(2, result.Length);
+            Assert.Equal(5 * 1000, (double)result[0], Tolerance);
+            Assert.Equal(3 * 1000, (double)result[1], Tolerance);
+        }
+
+        // ====================== 18. double?[] * T ======================
+        [Fact]
+        public void Mul_NullableDoubleArray_T_Returns_NullableTArray()
+        {
+            var result = nullableDoubleArray.Mul(scalarUnit);
+            Assert.Equal(3, result.Length);
+            Assert.Equal(5 * 1000, (double)result[0]!, Tolerance);
+            Assert.Equal(0, (double)result[1]!, Tolerance);
+            Assert.Equal(3 * 1000, (double)result[2]!, Tolerance);
+        }
+
+        // ====================== 19. T * double[] ======================
+        [Fact]
+        public void Mul_T_DoubleArray_Returns_TArray()
+        {
+            var result = scalarUnit.Mul(doubleArray);
+            Assert.Equal(2, result.Length);
+            Assert.Equal(1000 * 5, (double)result[0], Tolerance);
+            Assert.Equal(1000 * 3, (double)result[1], Tolerance);
+        }
+
+        // ====================== 20. T * double?[] ======================
+        [Fact]
+        public void Mul_T_NullableDoubleArray_Returns_NullableTArray()
+        {
+            var result = scalarUnit.Mul(nullableDoubleArray);
+            Assert.Equal(3, result.Length);
+            Assert.Equal(1000 * 5, (double)result[0]!, Tolerance);
+            Assert.Equal(0, (double)result[1]!, Tolerance);
+            Assert.Equal(1000 * 3, (double)result[2]!, Tolerance);
+        }
+
+        // ====================== 21. List<double> * T ======================
+        [Fact]
+        public void Mul_ListDouble_T_Returns_ListT()
+        {
+            var result = doubleList.Mul(scalarUnit);
+            Assert.Equal(2, result.Count);
+            Assert.Equal(5 * 1000, (double)result[0], Tolerance);
+            Assert.Equal(3 * 1000, (double)result[1], Tolerance);
+        }
+
+        // ====================== 22. List<double?> * T ======================
+        [Fact]
+        public void Mul_ListNullableDouble_T_Returns_ListNullableT()
+        {
+            var result = nullableDoubleList.Mul(scalarUnit);
+            Assert.Equal(3, result.Count);
+            Assert.Equal(5 * 1000, (double)result[0]!, Tolerance);
+            Assert.Equal(0, (double)result[1]!, Tolerance);
+            Assert.Equal(3 * 1000, (double)result[2]!, Tolerance);
+        }
+
+        // ====================== 23. T * List<double> ======================
+        [Fact]
+        public void Mul_T_ListDouble_Returns_ListT()
+        {
+            var result = scalarUnit.Mul(doubleList);
+            Assert.Equal(2, result.Count);
+            Assert.Equal(1000 * 5, (double)result[0], Tolerance);
+            Assert.Equal(1000 * 3, (double)result[1], Tolerance);
+        }
+
+        // ====================== 24. T * List<double?> ======================
+        [Fact]
+        public void Mul_T_ListNullableDouble_Returns_ListNullableT()
+        {
+            var result = scalarUnit.Mul(nullableDoubleList);
+            Assert.Equal(3, result.Count);
+            Assert.Equal(1000 * 5, (double)result[0]!, Tolerance);
+            Assert.Equal(0, (double)result[1]!, Tolerance);
+            Assert.Equal(1000 * 3, (double)result[2]!, Tolerance);
+        }
+
+        // ====================== 25. T * T[] -> double[] ======================
+        [Fact]
+        public void Mul_T_TArray_Returns_DoubleArray()
+        {
+            var result = scalarUnit * unitsArray;
+            Assert.Equal(2, result.Length);
+            Assert.Equal(1000 * 1000, result[0]._Value, Tolerance);
+            Assert.Equal(1000 * 1, result[1]._Value, Tolerance);
+        }
+
+        // Дополнительно: перегрузки с результатом double (без R)
+        [Fact]
+        public void Mul_TArray_T_Returns_DoubleArray()
+        {
+            var result = unitsArray * scalarUnit;
+            Assert.Equal(2, result.Length);
+            Assert.Equal(1000 * 1000, result[0]._Value, Tolerance);
+            Assert.Equal(1 * 1000, result[1]._Value, Tolerance);
+        }
+
+        [Fact]
+        public void Mul_ListT_T_Returns_DoubleList()
+        {
+            var result = unitsList * scalarUnit;
+            Assert.Equal(2, result.Count);
+            Assert.Equal(1000 * 1000, result[0]._Value, Tolerance);
+            Assert.Equal(1 * 1000, result[1]._Value, Tolerance);
+        }
+
+        // ====================== Обработка null коллекций ======================
+        [Fact]
+        public void Mul_NullArray_ReturnsNull()
+        {
+            Length[] nullArray = null!;
+            var result = nullArray.Mul<Length>(5.0);
+            Assert.Null(result);
+        }
+
+        [Fact]
+        public void Mul_NullList_ReturnsNull()
+        {
+            List<Length> nullList = null!;
+            var result = nullList.Mul<Length>(5.0);
+            Assert.Null(result);
+        }
+
+        [Fact]
+        public void Mul_EmptyArray_ReturnsEmptyArray()
+        {
+            var empty = Array.Empty<Length>();
+            var result = empty.Mul<Length>(5.0);
+            Assert.Empty(result);
+        }
+    }
+}