public static void TestRangeMakeInclusiveExclusive()
{
var range = Range.Create(1, 2);
AreEqual(range, range.MakeInclusive(i => i - 1, i => i + 1));
range = Range.CreateExclusive(1, 2);
AreEqual(Range.Create(0, 3), range.MakeInclusive(i => i - 1, i => i + 1));
range = Range.CreateExclusiveTo(1, 2);
AreEqual(Range.Create(1, 3), range.MakeInclusive(i => i - 1, i => i + 1));
range = Range.CreateExclusive(1, 2);
AreEqual(range, range.MakeExclusive(i => i - 1, i => i + 1));
range = Range.Create(1, 2);
AreEqual(Range.CreateExclusive(0, 3), range.MakeExclusive(i => i - 1, i => i + 1));
range = Range.CreateExclusiveFrom(1, 2);
AreEqual(Range.CreateExclusive(1, 3), range.MakeExclusive(i => i - 1, i => i + 1));
range = Range.CreateExclusive(2, 3);
IsTrue(range.MakeInclusive(i => i + 1, i => i - 1).IsEmpty);
range = Range.Create(2, 3);
IsTrue(range.MakeExclusive(i => i + 1, i => i - 1).IsEmpty);
range = Range.CreateExclusive(2, 3);
IsTrue(range.MakeInclusive(i => i + 1, i => i - 1).IsEmpty);
range = Range.Create(2, 3);
IsTrue(range.MakeExclusive(i => i + 1, i => i - 1).IsEmpty);
var range2 = Range.CreateExclusive(1, double.PositiveInfinity);
IsTrue(range2.MakeInclusive(i => double.NegativeInfinity, i => i + 1).IsInfinite);
range2 = Range.Create(double.NegativeInfinity, 2);
IsTrue(range2.MakeExclusive(i => i + 1, i => double.PositiveInfinity).IsInfinite);
range2 = Range.Create(double.NegativeInfinity, double.PositiveInfinity);
AreEqual(range2, range2.MakeInclusive(i => i - 1, i => i + 1));
}
public static void TestRangeToString()
{
int?value1 = 1;
int?empty = null;
var key = "Hello!";
AreEqual(Range <int> .Empty.ToString(), "∅");
AreEqual(Range <int> .Infinite.ToString(), "(-∞..+∞)");
AreEqual(Range.Create(1, 1).ToString(), "[1..1]");
AreEqual(Range.Create(1, 2).ToString(), "[1..2]");
AreEqual(Range.CreateExclusive(1, 2).ToString(), "(1..2)");
AreEqual(Range.CreateExclusiveFrom(1, 2).ToString(), "(1..2]");
AreEqual(Range.CreateExclusiveTo(1, 2).ToString(), "[1..2)");
AreEqual(Range.CreateExclusive(value1, empty).ToString("000"), "(001..+∞)");
AreEqual(Range.Create(RangeBoundaryFrom <int?> .Empty, RangeBoundaryTo <int?> .Empty, key).ToString(), "'Hello!':∅");
AreEqual(Range.Create(empty, empty, key).ToString(), "'Hello!':(-∞..+∞)");
AreEqual(Range.Create(empty, empty, (string)null).ToString(), "'':(-∞..+∞)");
AreEqual(Range.Create(1, 1, key).ToString(), "'Hello!':[1..1]");
AreEqual(Range.Create(1, 2, key).ToString(), "'Hello!':[1..2]");
AreEqual(Range.CreateExclusive(1, 2, key).ToString(), "'Hello!':(1..2)");
AreEqual(Range.CreateExclusiveFrom(1, 2, key).ToString(), "'Hello!':(1..2]");
AreEqual(Range.CreateExclusiveTo(1, 2, key).ToString(), "'Hello!':[1..2)");
AreEqual(Range.CreateExclusive(value1, empty, 3).ToString("000"), "'3':(001..+∞)");
AreEqual(Range.Create((int?)1, null, key).ToString(), "'Hello!':[1..+∞)");
var cultureRu = CultureInfo.GetCultureInfo("ru-RU");
var cultureEn = CultureInfo.GetCultureInfo("en-US");
AreEqual(Range.Create(1.5, 2.5, 1.1).ToString("000.000", cultureRu), "'1,1':[001,500..002,500]");
AreEqual(Range.Create(1.5, 2.5, 1.1).ToString("000.000", cultureEn), "'1.1':[001.500..002.500]");
AreEqual(Range.Create(1.5, 2.5, (string)null).ToString(null, cultureRu), "'':[1,5..2,5]");
AreEqual(Range.Create(1.5, 2.5, (string)null).ToString(null, cultureEn), "'':[1.5..2.5]");
}
public static void TestRangeEquality()
{
int?value1 = 1;
int?value2 = 2;
int?empty = null;
var key = "Hello!";
var key2 = "Hello2!";
var eFrom = new RangeBoundaryFrom <int?>();
var eTo = new RangeBoundaryTo <int?>();
AreEqual(Range <int?> .Empty, Range.Create(eFrom, eTo));
AreEqual(Range <int?> .Infinite, Range.Create(empty, empty));
AreNotEqual(Range <double?> .Infinite, Range.Create(empty, empty));
AreEqual(
Range.CreateExclusiveFrom(value1, value2).From,
Range.BoundaryFromExclusive(value1));
AreEqual(
Range.CreateExclusiveFrom(value1, value2).To,
Range.BoundaryTo(value2));
AreNotEqual(
Range.CreateExclusiveFrom(value1, value2),
Range.Create(value1, value2));
IsTrue(Range.Create(value1, value2) == Range.Create <int?>(1, 2));
IsTrue(Range.Create(value1, value2) != Range.Create(value1, 1));
IsTrue(Range.Create(value1, value2, key) == Range.Create <int?, string>(1, 2, key));
IsTrue(Range.Create(value1, value2, key) != Range.Create <int?, string>(1, 2, key2));
IsTrue(Range.Create(value1, value2, key) != Range.Create <int?, string>(1, 1, key));
}
public static void TestRangeCreate()
{
int?value1 = 1;
int?value2 = 2;
int?empty = null;
var key = "Hello!";
DoesNotThrow(() => Range.Create(value1, value2));
DoesNotThrow(() => Range.Create(value1, value1));
DoesNotThrow(() => Range.Create(empty, value2));
DoesNotThrow(() => Range.Create(empty, empty));
DoesNotThrow(() => Range.CreateExclusiveFrom(value1, value2));
Throws <ArgumentException>(() => Range.CreateExclusiveFrom(value1, value1));
DoesNotThrow(() => Range.CreateExclusiveFrom(empty, value2));
DoesNotThrow(() => Range.CreateExclusiveFrom(empty, empty));
DoesNotThrow(() => Range.CreateExclusiveTo(value1, value2, key));
Throws <ArgumentException>(() => Range.CreateExclusiveTo(value2, value2, key));
DoesNotThrow(() => Range.CreateExclusiveTo(empty, value2, key));
DoesNotThrow(() => Range.CreateExclusiveTo(empty, empty, key));
DoesNotThrow(() => Range.CreateExclusive(value1, value2, key));
Throws <ArgumentException>(() => Range.CreateExclusive(value2, value2, key));
DoesNotThrow(() => Range.CreateExclusive(empty, value2, key));
DoesNotThrow(() => Range.CreateExclusive(empty, empty, key));
Throws <ArgumentException>(() => Range.Create(value2, value1, key));
Throws <ArgumentException>(() => Range.CreateExclusiveFrom(value2, value1));
Throws <ArgumentException>(() => Range.CreateExclusiveTo(value2, value1, key));
Throws <ArgumentException>(() => Range.CreateExclusive(value2, value1, key));
Throws <ArgumentException>(() => Range.Create(RangeBoundaryFrom <int?> .Empty, Range.BoundaryTo(value2), key));
Throws <ArgumentException>(() => Range.Create(Range.BoundaryFrom(empty), RangeBoundaryTo <int?> .Empty, key));
Throws <ArgumentException>(() => Range.Create(double.NegativeInfinity, double.NegativeInfinity, key));
Throws <ArgumentException>(() => Range.Create(double.PositiveInfinity, double.PositiveInfinity, key));
Throws <ArgumentException>(() => Range.Create(double.PositiveInfinity, double.NegativeInfinity, key));
Throws <ArgumentException>(() => Range.Create(double.PositiveInfinity, 2, key));
Throws <ArgumentException>(() => Range.Create(1, double.NegativeInfinity, key));
AreEqual(
Range <int?> .Empty,
new Range <int?>(RangeBoundaryFrom <int?> .Empty, RangeBoundaryTo <int?> .Empty));
AreEqual(
Range <int?> .Infinite,
Range.Create(empty, empty));
AreEqual(
Range <double> .Infinite,
Range.Create(double.NegativeInfinity, double.PositiveInfinity));
AreNotEqual(
Range <int?> .Infinite,
Range.Create(empty, empty, key));
AreEqual(
Range.TryCreate(value2, value1),
Range <int?> .Empty);
IsTrue(Range.TryCreate(value2, value1, key).IsEmpty);
IsFalse(Range.TryCreate(value1, value2, key).IsEmpty);
IsTrue(Range.TryCreate(double.NegativeInfinity, double.NegativeInfinity, key).IsEmpty);
}
public static CompositeRange <T, TKey> ToCompositeRangeExclusiveFrom <T, TKey>(
this IEnumerable <TKey> source,
[InstantHandle] Func <TKey, T> fromValueSelector,
[InstantHandle] Func <TKey, T> toValueSelector)
where TKey : notnull =>
source
.Select(s => Range.CreateExclusiveFrom(fromValueSelector(s), toValueSelector(s), s))
.ToCompositeRange();
public static void TestRangeIntersection()
{
double value1 = 1;
double value2 = 2;
var emptyFrom = RangeBoundaryFrom <double> .Empty;
var emptyTo = RangeBoundaryTo <double> .Empty;
var emptyRange = Range.Create(emptyFrom, emptyTo);
var infiniteRange = Range.Create(double.NegativeInfinity, double.PositiveInfinity);
var range = Range.Create(value1, value2);
AreEqual(range.Intersect(range), range);
AreEqual(range.Intersect(1, 2), range);
AreEqual(range.Intersect(1.5, 1.5), Range.Create(1.5, 1.5));
AreEqual(range.Intersect(0, 3), range);
AreEqual(range.Intersect(1.5, 3), Range.Create(1.5, 2.0));
AreEqual(range.Intersect(0, 1.5), Range.Create(1.0, 1.5));
AreEqual(range.Intersect(3, 4), emptyRange);
AreEqual(range.Intersect(-2, -1), emptyRange);
AreEqual(range.Intersect(emptyRange), emptyRange);
AreEqual(emptyRange.Intersect(range), emptyRange);
AreEqual(range.Intersect(infiniteRange), range);
AreEqual(infiniteRange.Intersect(range), range);
AreEqual(emptyRange.Intersect(infiniteRange), emptyRange);
AreEqual(infiniteRange.Intersect(emptyRange), emptyRange);
range = Range.CreateExclusive(value1, value2);
AreEqual(range.Intersect(range), range);
AreEqual(range.Intersect(1, 2), range);
AreEqual(range.Intersect(1.5, 1.5), Range.Create(1.5, 1.5));
AreEqual(range.Intersect(0, 3), range);
AreEqual(range.Intersect(1.5, 3), Range.CreateExclusiveTo(1.5, 2.0));
AreEqual(range.Intersect(0, 1.5), Range.CreateExclusiveFrom(1.0, 1.5));
AreEqual(range.Intersect(3, 4), emptyRange);
AreEqual(range.Intersect(-2, -1), emptyRange);
AreEqual(range.Intersect(emptyRange), emptyRange);
AreEqual(emptyRange.Intersect(range), emptyRange);
AreEqual(range.Intersect(infiniteRange), range);
AreEqual(infiniteRange.Intersect(range), range);
AreEqual(emptyRange.Intersect(infiniteRange), emptyRange);
AreEqual(infiniteRange.Intersect(emptyRange), emptyRange);
Throws <ArgumentException>(
() => range.Intersect(2, 1));
Throws <ArgumentException>(
() => range.Intersect(double.PositiveInfinity, double.NegativeInfinity));
Throws <ArgumentException>(
() => range.Intersect(2, double.NegativeInfinity));
Throws <ArgumentException>(
() => range.Intersect(double.PositiveInfinity, 1));
}
public static void TestKeyedRangeUnion()
{
double value1 = 1;
double value2 = 2;
var emptyFrom = RangeBoundaryFrom <double> .Empty;
var emptyTo = RangeBoundaryTo <double> .Empty;
var emptyRange = Range.Create(emptyFrom, emptyTo, RangeKey);
var infiniteRange = Range.Create(double.NegativeInfinity, double.PositiveInfinity, RangeKey);
var range = Range.Create(value1, value2, RangeKey);
AreEqual(range.Union(range), range);
AreEqual(range.Union(1, 2), range);
AreEqual(range.Union(1.5, 1.5), range);
AreEqual(range.Union(0, 3), Range.Create(0.0, 3.0, RangeKey));
AreEqual(range.Union(1.5, 3), Range.Create(1.0, 3.0, RangeKey));
AreEqual(range.Union(0, 1.5), Range.Create(0.0, 2.0, RangeKey));
AreEqual(range.Union(3, 4), Range.Create(1.0, 4.0, RangeKey));
AreEqual(range.Union(-2, -1), Range.Create(-2.0, 2.0, RangeKey));
AreEqual(range.Union(emptyRange), range);
AreEqual(emptyRange.Union(range), range);
AreEqual(range.Union(infiniteRange), infiniteRange);
AreEqual(infiniteRange.Union(range), infiniteRange);
AreEqual(emptyRange.Union(infiniteRange), infiniteRange);
AreEqual(infiniteRange.Union(emptyRange), infiniteRange);
range = Range.CreateExclusive(value1, value2, RangeKey);
AreEqual(range.Union(range), range);
AreEqual(range.Union(1, 2), Range.Create(1.0, 2.0, RangeKey));
AreEqual(range.Union(1.5, 1.5), range);
AreEqual(range.Union(0, 3), Range.Create(0.0, 3.0, RangeKey));
AreEqual(range.Union(1.5, 3), Range.CreateExclusiveFrom(1.0, 3.0, RangeKey));
AreEqual(range.Union(0, 1.5), Range.CreateExclusiveTo(0.0, 2.0, RangeKey));
AreEqual(range.Union(3, 4), Range.CreateExclusiveFrom(1.0, 4.0, RangeKey));
AreEqual(range.Union(-2, -1), Range.CreateExclusiveTo(-2.0, 2.0, RangeKey));
AreEqual(range.Union(emptyRange), range);
AreEqual(emptyRange.Union(range), range);
AreEqual(range.Union(infiniteRange), infiniteRange);
AreEqual(infiniteRange.Union(range), infiniteRange);
AreEqual(emptyRange.Union(infiniteRange), infiniteRange);
AreEqual(infiniteRange.Union(emptyRange), infiniteRange);
Throws <ArgumentException>(
() => range.Union(2, 1));
Throws <ArgumentException>(
() => range.Union(double.PositiveInfinity, double.NegativeInfinity));
Throws <ArgumentException>(
() => range.Union(2, double.NegativeInfinity));
Throws <ArgumentException>(
() => range.Union(double.PositiveInfinity, 1));
}
public static void TestRangeTrimTo()
{
double?empty = null;
double?value1 = 1;
double?value2 = 2;
var emptyFrom = RangeBoundaryFrom <double?> .Empty;
var emptyTo = RangeBoundaryTo <double?> .Empty;
var emptyRange = Range.Create(emptyFrom, emptyTo);
var range = Range.Create(value1, value2);
AreEqual(range.TrimTo(null), range);
AreEqual(range.TrimTo(double.PositiveInfinity), range);
Throws <ArgumentException>(() => range.TrimTo(double.NegativeInfinity));
AreEqual(range.TrimTo(RangeBoundaryTo <double?> .Empty), emptyRange);
AreEqual(range.TrimTo(0), emptyRange);
AreEqual(range.TrimTo(1), Range.Create(value1, 1));
AreEqual(range.TrimTo(1.5), Range.Create(value1, 1.5));
AreEqual(range.TrimTo(2), range);
AreEqual(range.TrimTo(3), range);
range = Range.Create(emptyFrom, emptyTo);
AreEqual(range.TrimTo(null), range);
AreEqual(range.TrimTo(double.PositiveInfinity), range);
Throws <ArgumentException>(() => range.TrimTo(double.NegativeInfinity));
AreEqual(range.TrimTo(RangeBoundaryTo <double?> .Empty), range);
AreEqual(range.TrimTo(0), range);
range = Range.CreateExclusive(empty, empty);
AreEqual(range.TrimTo(null), range);
AreEqual(range.TrimTo(double.PositiveInfinity), range);
Throws <ArgumentException>(() => range.TrimTo(double.NegativeInfinity));
AreEqual(range.TrimTo(RangeBoundaryTo <double?> .Empty), emptyRange);
AreEqual(range.TrimTo(0), Range.Create(empty, 0));
range = Range.CreateExclusive(value1, value2);
AreEqual(range.TrimTo(2), range);
AreEqual(range.TrimTo(1.5), Range.CreateExclusiveFrom(value1, 1.5));
AreEqual(range.TrimTo(1), emptyRange);
range = Range.CreateExclusive(value1, value2);
AreEqual(range.TrimTo(Range.BoundaryTo <double?>(2)), range);
AreEqual(range.TrimTo(Range.BoundaryTo <double?>(1.5)), Range.CreateExclusiveFrom(value1, 1.5));
AreEqual(range.TrimTo(Range.BoundaryTo <double?>(1)), emptyRange);
}
public static void TestKeyedRangeExtendTo()
{
double?empty = null;
double?value1 = 1;
double?value2 = 2;
var emptyFrom = RangeBoundaryFrom <double?> .Empty;
var emptyTo = RangeBoundaryTo <double?> .Empty;
var range = Range.Create(value1, value2, RangeKey);
AreEqual(range.ExtendTo(null), Range.Create(value1, empty, RangeKey));
AreEqual(range.ExtendTo(double.PositiveInfinity), Range.Create(value1, empty, RangeKey));
Throws <ArgumentException>(() => range.ExtendTo(double.NegativeInfinity));
AreEqual(range.ExtendTo(RangeBoundaryTo <double?> .Empty), range);
AreEqual(range.ExtendTo(0), range);
AreEqual(range.ExtendTo(1), range);
AreEqual(range.ExtendTo(1.5), range);
AreEqual(range.ExtendTo(2), range);
AreEqual(range.ExtendTo(3), Range.Create(value1, 3, RangeKey));
range = Range.Create(emptyFrom, emptyTo, RangeKey);
AreEqual(range.ExtendTo(null), range);
AreEqual(range.ExtendTo(double.PositiveInfinity), range);
Throws <ArgumentException>(() => range.ExtendTo(double.NegativeInfinity));
AreEqual(range.ExtendTo(RangeBoundaryTo <double?> .Empty), range);
AreEqual(range.ExtendTo(0), range);
range = Range.CreateExclusive(empty, empty, RangeKey);
AreEqual(range.ExtendTo(null), range);
AreEqual(range.ExtendTo(double.PositiveInfinity), range);
Throws <ArgumentException>(() => range.ExtendTo(double.NegativeInfinity));
AreEqual(range.ExtendTo(RangeBoundaryTo <double?> .Empty), range);
AreEqual(range.ExtendTo(0), range);
range = Range.CreateExclusive(value1, value2, RangeKey);
AreEqual(range.ExtendTo(1), range);
AreEqual(range.ExtendTo(1.5), range);
AreEqual(range.ExtendTo(2), Range.CreateExclusiveFrom(value1, 2, RangeKey));
range = Range.CreateExclusive(value1, value2, RangeKey);
AreEqual(range.ExtendTo(Range.BoundaryTo <double?>(2)), Range.CreateExclusiveFrom(value1, 2, RangeKey));
AreEqual(range.ExtendTo(Range.BoundaryToExclusive <double?>(2)), range);
AreEqual(range.ExtendTo(Range.BoundaryToExclusive <double?>(3)), Range.CreateExclusive(value1, 3, RangeKey));
}
public static void TestRangeWithValue()
{
var range = Range.Create(1, 2);
AreEqual(Range.Create(0, 3), range.WithValues(i => i - 1, i => i + 1));
range = Range.CreateExclusiveFrom(1, 2);
AreEqual(Range.CreateExclusiveFrom(0, 3), range.WithValues(i => i - 1, i => i + 1));
range = Range.CreateExclusive(1, 2);
AreEqual(Range.CreateExclusive(2, 3), range.WithValues(i => i + 1));
var toInf = (double?)double.PositiveInfinity;
var range2 = Range.CreateExclusive(1, toInf);
IsTrue(range2.WithValues(i => (double?)null).IsInfinite);
range2 = Range.Create(double.NegativeInfinity, toInf);
AreEqual(range2, range2.WithValues(i => i - 1, i => i + 1));
}
public static void TestCompositeRangeWithKeyProperties()
{
var range1A = Range.Create(1, 2, "A");
var range1B = Range.Create(1, 2, "B");
var range2C = Range.CreateExclusiveFrom(2, 3, "C");
var range3A = Range.Create(3, 4).WithKey("A");
var empty = Range <int> .Empty.WithKey((string)null);
var infinite = Range <int> .Infinite.WithKey((string)null);
var a = new CompositeRange <int, string>();
AreEqual(a, CompositeRange.Create(empty, empty));
AreEqual(a, new CompositeRange <int, string>());
AreEqual(a.SubRanges.Count, 0);
AreEqual(a.ContainingRange, Range <int> .Empty);
IsTrue(a.IsEmpty);
IsFalse(a.IsNotEmpty);
IsTrue(a.IsMerged);
a = new CompositeRange <int, string>(infinite);
AreNotEqual(a, new CompositeRange <int, string>());
AreEqual(a, CompositeRange.Create(infinite));
AreNotEqual(a, CompositeRange.Create(infinite, infinite));
AreEqual(a.SubRanges.Count, 1);
AreEqual(a.ContainingRange, infinite.WithoutKey());
AreEqual(a.SubRanges[0], infinite);
IsFalse(a.IsEmpty);
IsTrue(a.IsNotEmpty);
IsTrue(a.IsMerged);
a = CompositeRange.Create(range1A);
AreNotEqual(a, new CompositeRange <int, string>());
AreNotEqual(a, new CompositeRange <int, string>(infinite));
AreNotEqual(a, CompositeRange.Create(range1A, range1A));
AreNotEqual(a, CompositeRange.Create(range1B));
AreEqual(a.SubRanges.Count, 1);
AreEqual(a.ContainingRange, range1A.WithoutKey());
AreEqual(a.SubRanges[0], range1A);
AreNotEqual(a.SubRanges[0], range1B);
IsFalse(a.IsEmpty);
IsTrue(a.IsNotEmpty);
IsTrue(a.IsMerged);
a = CompositeRange.Create(range1A, range1B);
AreNotEqual(a, CompositeRange <int> .Empty);
AreNotEqual(a, CompositeRange <int> .Infinite);
AreEqual(a, CompositeRange.Create(range1B, range1A));
AreEqual(a.SubRanges.Count, 2);
AreEqual(a.ContainingRange, range1A.WithoutKey());
AreEqual(a.SubRanges[0], range1A);
AreEqual(a.SubRanges[1], range1B);
IsFalse(a.IsEmpty);
IsTrue(a.IsNotEmpty);
IsFalse(a.IsMerged);
a = CompositeRange.Create(range1A, range2C);
AreNotEqual(a, CompositeRange <int> .Empty);
AreNotEqual(a, CompositeRange <int> .Infinite);
AreEqual(a, CompositeRange.Create(range2C, range1A));
AreEqual(a.SubRanges.Count, 2);
AreEqual(a.ContainingRange, Range.Create(1, 3));
AreEqual(a.SubRanges[0], range1A);
AreEqual(a.SubRanges[1], range2C);
IsFalse(a.IsEmpty);
IsTrue(a.IsNotEmpty);
IsFalse(a.IsMerged);
IsFalse(a.SubRanges[0].HasIntersection(a.SubRanges[1]));
IsTrue(a.SubRanges[0].To.GetComplementation() == a.SubRanges[1].From);
a = CompositeRange.Create(range1A, range3A);
AreNotEqual(a, CompositeRange <int> .Empty);
AreNotEqual(a, CompositeRange <int> .Infinite);
AreEqual(a, CompositeRange.Create(range3A, range1A));
AreEqual(a.SubRanges.Count, 2);
AreEqual(a.ContainingRange, Range.Create(1, 4));
AreEqual(a.SubRanges[0], range1A);
AreEqual(a.SubRanges[1], range3A);
IsFalse(a.IsEmpty);
IsTrue(a.IsNotEmpty);
IsTrue(a.IsMerged);
}
public static void TestCompositeRangeRangeProperties()
{
var range1 = Range.Create(1, 2);
var range2 = Range.CreateExclusiveFrom(2, 3);
var range3 = Range.Create(3, 4);
var empty = Range <int> .Empty;
var infinite = Range <int> .Infinite;
// ReSharper disable once ObjectCreationAsStatement
// ReSharper disable once AssignNullToNotNullAttribute
Throws <ArgumentNullException>(() => new CompositeRange <int>(null));
var a = new CompositeRange <int>();
AreEqual(a, CompositeRange <int> .Empty);
AreEqual(a, CompositeRange.Create(empty, empty));
AreNotEqual(a, CompositeRange <int> .Infinite);
AreEqual(a, new CompositeRange <int>());
AreEqual(a.SubRanges.Count, 0);
AreEqual(a.ContainingRange, empty);
IsTrue(a.IsEmpty);
IsFalse(a.IsNotEmpty);
IsTrue(a.IsMerged);
a = new CompositeRange <int>(infinite);
AreNotEqual(a, CompositeRange <int> .Empty);
AreEqual(a, CompositeRange <int> .Infinite);
AreNotEqual(a, CompositeRange.Create(infinite, infinite));
AreEqual(a.SubRanges.Count, 1);
AreEqual(a.ContainingRange, infinite);
AreEqual(a.SubRanges[0], infinite);
IsFalse(a.IsEmpty);
IsTrue(a.IsNotEmpty);
IsTrue(a.IsMerged);
a = CompositeRange.Create(range1);
AreNotEqual(a, CompositeRange <int> .Empty);
AreNotEqual(a, CompositeRange <int> .Infinite);
AreNotEqual(a, CompositeRange.Create(range1, range1));
AreEqual(a.SubRanges.Count, 1);
AreEqual(a.ContainingRange, range1);
AreEqual(a.SubRanges[0], range1);
IsFalse(a.IsEmpty);
IsTrue(a.IsNotEmpty);
IsTrue(a.IsMerged);
a = CompositeRange.Create(range1, range1);
AreNotEqual(a, CompositeRange <int> .Empty);
AreNotEqual(a, CompositeRange <int> .Infinite);
AreEqual(a, CompositeRange.Create(range1, range1));
AreEqual(a.SubRanges.Count, 2);
AreEqual(a.ContainingRange, range1);
AreEqual(a.SubRanges[0], range1);
AreEqual(a.SubRanges[1], range1);
IsFalse(a.IsEmpty);
IsTrue(a.IsNotEmpty);
IsFalse(a.IsMerged);
a = CompositeRange.Create(range1, range2);
AreNotEqual(a, CompositeRange <int> .Empty);
AreNotEqual(a, CompositeRange <int> .Infinite);
AreEqual(a, CompositeRange.Create(range2, range1));
AreEqual(a.SubRanges.Count, 2);
AreEqual(a.ContainingRange, Range.Create(1, 3));
AreEqual(a.SubRanges[0], range1);
AreEqual(a.SubRanges[1], range2);
IsFalse(a.IsEmpty);
IsTrue(a.IsNotEmpty);
IsFalse(a.IsMerged);
IsFalse(a.SubRanges[0].HasIntersection(a.SubRanges[1]));
IsTrue(a.SubRanges[0].To.GetComplementation() == a.SubRanges[1].From);
a = CompositeRange.Create(range1, range3);
AreNotEqual(a, CompositeRange <int> .Empty);
AreNotEqual(a, CompositeRange <int> .Infinite);
AreEqual(a, CompositeRange.Create(range3, range1));
AreEqual(a.SubRanges.Count, 2);
AreEqual(a.ContainingRange, Range.Create(1, 4));
AreEqual(a.SubRanges[0], range1);
AreEqual(a.SubRanges[1], range3);
IsFalse(a.IsEmpty);
IsTrue(a.IsNotEmpty);
IsTrue(a.IsMerged);
}
public static void TestRangeEndsBefore()
{
double?empty = null;
double?value1 = 1;
double?value2 = 2;
var emptyFrom = RangeBoundaryFrom <double?> .Empty;
var emptyTo = RangeBoundaryTo <double?> .Empty;
var range = Range.Create(value1, value2);
IsTrue(range.EndsBefore(null));
IsFalse(range.EndsBefore(double.NegativeInfinity));
IsTrue(range.EndsBefore(double.PositiveInfinity));
IsFalse(range.EndsBefore(RangeBoundaryFrom <double?> .Empty));
IsFalse(range.EndsBefore(RangeBoundaryTo <double?> .Empty));
IsFalse(range.EndsBefore(0));
IsFalse(range.EndsBefore(1));
IsFalse(range.EndsBefore(1.5));
IsFalse(range.EndsBefore(2));
IsTrue(range.EndsBefore(3));
IsFalse(range.EndsBefore(Range.Create(2, empty, _rangeKey2)));
IsTrue(range.EndsBefore(Range.CreateExclusiveFrom(2, empty, _rangeKey2)));
IsTrue(range.EndsBefore(Range.Create(3, empty, _rangeKey2)));
range = Range.Create(emptyFrom, emptyTo);
IsFalse(range.EndsBefore(null));
IsFalse(range.EndsBefore(double.NegativeInfinity));
IsFalse(range.EndsBefore(double.PositiveInfinity));
IsFalse(range.EndsBefore(RangeBoundaryFrom <double?> .Empty));
IsFalse(range.EndsBefore(RangeBoundaryTo <double?> .Empty));
IsFalse(range.EndsBefore(0));
range = Range.CreateExclusive(empty, empty);
IsFalse(range.EndsBefore(null));
IsFalse(range.EndsBefore(double.NegativeInfinity));
IsFalse(range.EndsBefore(double.PositiveInfinity));
IsFalse(range.EndsBefore(RangeBoundaryFrom <double?> .Empty));
IsFalse(range.EndsBefore(RangeBoundaryTo <double?> .Empty));
IsFalse(range.EndsBefore(0));
range = Range.CreateExclusive(value1, value2);
IsFalse(range.EndsBefore(1));
IsFalse(range.EndsBefore(1.5));
IsTrue(range.EndsBefore(2));
range = Range.CreateExclusive(value1, value2);
IsFalse(range.EndsBefore(Range.BoundaryFrom <double?>(1)));
IsTrue(range.EndsBefore(Range.BoundaryTo <double?>(2)));
IsFalse(range.EndsBefore(Range.BoundaryFromExclusive <double?>(1)));
IsFalse(range.EndsBefore(Range.BoundaryFromExclusive <double?>(1.5)));
IsTrue(range.EndsBefore(Range.BoundaryFromExclusive <double?>(2)));
IsFalse(range.EndsBefore(Range.BoundaryToExclusive <double?>(1)));
IsFalse(range.EndsBefore(Range.BoundaryToExclusive <double?>(1.5)));
IsFalse(range.EndsBefore(Range.BoundaryToExclusive <double?>(2)));
Throws <ArgumentException>(
() => range.EndsBefore(Range.BoundaryFrom <double?>(double.PositiveInfinity)));
Throws <ArgumentException>(
() => range.EndsBefore(Range.BoundaryTo <double?>(double.NegativeInfinity)));
}
public static void TestRangeProperties()
{
var range1 = Range.Create(1, 2);
var range2 = Range.CreateExclusiveFrom(2, 3);
var range3 = Range.Create(3, 4);
var empty = Range <int> .Empty;
var infinite = Range <int> .Infinite;
var a = new CompositeRange <int>();
AreEqual(a, CompositeRange <int> .Empty);
AreEqual(a, CompositeRange.Create(empty, empty));
AreNotEqual(a, CompositeRange <int> .Infinite);
AreEqual(a, new CompositeRange <int>());
AreEqual(a.SubRanges.Count, 0);
AreEqual(a.ContainingRange, empty);
IsTrue(a.IsEmpty);
IsFalse(a.IsNotEmpty);
IsTrue(a.IsMerged);
a = new CompositeRange <int>(infinite);
AreNotEqual(a, CompositeRange <int> .Empty);
AreEqual(a, CompositeRange <int> .Infinite);
AreNotEqual(a, CompositeRange.Create(infinite, infinite));
AreEqual(a.SubRanges.Count, 1);
AreEqual(a.ContainingRange, infinite);
AreEqual(a.SubRanges[0], infinite);
IsFalse(a.IsEmpty);
IsTrue(a.IsNotEmpty);
IsTrue(a.IsMerged);
a = CompositeRange.Create(range1);
AreNotEqual(a, CompositeRange <int> .Empty);
AreNotEqual(a, CompositeRange <int> .Infinite);
AreNotEqual(a, CompositeRange.Create(range1, range1));
AreEqual(a.SubRanges.Count, 1);
AreEqual(a.ContainingRange, range1);
AreEqual(a.SubRanges[0], range1);
IsFalse(a.IsEmpty);
IsTrue(a.IsNotEmpty);
IsTrue(a.IsMerged);
a = CompositeRange.Create(range1, range1);
AreNotEqual(a, CompositeRange <int> .Empty);
AreNotEqual(a, CompositeRange <int> .Infinite);
AreEqual(a, CompositeRange.Create(range1, range1));
AreEqual(a.SubRanges.Count, 2);
AreEqual(a.ContainingRange, range1);
AreEqual(a.SubRanges[0], range1);
AreEqual(a.SubRanges[1], range1);
IsFalse(a.IsEmpty);
IsTrue(a.IsNotEmpty);
IsFalse(a.IsMerged);
a = CompositeRange.Create(range1, range2);
AreNotEqual(a, CompositeRange <int> .Empty);
AreNotEqual(a, CompositeRange <int> .Infinite);
AreEqual(a, CompositeRange.Create(range2, range1));
AreEqual(a.SubRanges.Count, 2);
AreEqual(a.ContainingRange, Range.Create(1, 3));
AreEqual(a.SubRanges[0], range1);
AreEqual(a.SubRanges[1], range2);
IsFalse(a.IsEmpty);
IsTrue(a.IsNotEmpty);
IsFalse(a.IsMerged);
IsFalse(a.SubRanges[0].HasIntersection(a.SubRanges[1]));
IsTrue(a.SubRanges[0].To.GetComplementation() == a.SubRanges[1].From);
a = CompositeRange.Create(range1, range3);
AreNotEqual(a, CompositeRange <int> .Empty);
AreNotEqual(a, CompositeRange <int> .Infinite);
AreEqual(a, CompositeRange.Create(range3, range1));
AreEqual(a.SubRanges.Count, 2);
AreEqual(a.ContainingRange, Range.Create(1, 4));
AreEqual(a.SubRanges[0], range1);
AreEqual(a.SubRanges[1], range3);
IsFalse(a.IsEmpty);
IsTrue(a.IsNotEmpty);
IsTrue(a.IsMerged);
}
public static void TestCompositeRangeArgsOrderWithKeys()
{
var seek = new Random().Next();
Console.WriteLine(
$"{MethodBase.GetCurrentMethod().Name}: Rnd seek: {seek} (use the seek to reproduce test results).");
var rnd = new Random(seek);
var emtpy = Range.Create(RangeBoundaryFrom <int> .Empty, RangeBoundaryTo <int> .Empty, "E");
var infinite = Range.Create(
RangeBoundaryFrom <int> .NegativeInfinity,
RangeBoundaryTo <int> .PositiveInfinity, "I");
// Equal ranges should use same keys to provide repeatable results after
// ranges array will be shuffled.
var ranges = new[]
{
emtpy,
Range.Create(1, 2, "A"),
Range.Create(1, 2, "A"),
Range.Create(3, 4, "B"),
Range.Create(3, 5, "C"),
emtpy,
emtpy,
emtpy,
Range.CreateExclusive(4, 6, "D"),
Range.CreateExclusiveTo(7, 8, "F"),
Range.CreateExclusiveTo(3, 5, "G"),
Range.CreateExclusive(3, 5, "H"),
Range.CreateExclusiveFrom(3, 5, "K"),
Range.Create(0, 6, (string)null),
emtpy,
emtpy,
infinite
};
var compositeRange = new CompositeRange <int, string>(ranges);
AreEqual(
compositeRange.ToString(),
"(-∞..+∞): { 'I':(-∞..+∞); '':[0..6]; 'A':[1..2]; 'A':[1..2]; 'B':[3..4]; " +
"'G':[3..5); 'C':[3..5]; 'H':(3..5); 'K':(3..5]; 'D':(4..6); 'F':[7..8) }");
compositeRange = new CompositeRange <int, string>(ranges.OrderBy(r => rnd.Next()));
AreEqual(
compositeRange.ToString(),
"(-∞..+∞): { 'I':(-∞..+∞); '':[0..6]; 'A':[1..2]; 'A':[1..2]; 'B':[3..4]; " +
"'G':[3..5); 'C':[3..5]; 'H':(3..5); 'K':(3..5]; 'D':(4..6); 'F':[7..8) }");
compositeRange = new CompositeRange <int, string>(ranges.Take(ranges.Length - 1));
AreEqual(
compositeRange.ToString(),
"[0..8): { '':[0..6]; 'A':[1..2]; 'A':[1..2]; 'B':[3..4]; " +
"'G':[3..5); 'C':[3..5]; 'H':(3..5); 'K':(3..5]; 'D':(4..6); 'F':[7..8) }");
compositeRange = new CompositeRange <int, string>(ranges.Take(ranges.Length - 1).OrderBy(r => rnd.Next()));
AreEqual(
compositeRange.ToString(),
"[0..8): { '':[0..6]; 'A':[1..2]; 'A':[1..2]; 'B':[3..4]; " +
"'G':[3..5); 'C':[3..5]; 'H':(3..5); 'K':(3..5]; 'D':(4..6); 'F':[7..8) }");
compositeRange = new CompositeRange <int, string>(ranges.Last());
AreEqual(compositeRange.ToString(), "(-∞..+∞): { 'I':(-∞..+∞) }");
compositeRange = new CompositeRange <int, string>(ranges.First());
AreEqual(compositeRange.ToString(), "∅");
compositeRange = new CompositeRange <int, string>(ranges.Take(0));
AreEqual(compositeRange.ToString(), "∅");
compositeRange = new CompositeRange <int, string>();
AreEqual(compositeRange.ToString(), "∅");
}
public static void TestCompositeRangeArgsOrder()
{
var seek = new Random().Next();
Console.WriteLine(
$"{MethodBase.GetCurrentMethod().Name}: Rnd seek: {seek} (use the seek to reproduce test results).");
var rnd = new Random(seek);
var ranges = new[]
{
Range <int> .Empty,
Range.Create(1, 2),
Range.Create(1, 2),
Range.Create(3, 4),
Range.Create(3, 5),
Range <int> .Empty,
Range <int> .Empty,
Range <int> .Empty,
Range.CreateExclusive(4, 6),
Range.CreateExclusiveTo(7, 8),
Range.CreateExclusiveTo(3, 5),
Range.CreateExclusive(3, 5),
Range.CreateExclusiveFrom(3, 5),
Range.Create(0, 6),
Range <int> .Empty,
Range <int> .Empty,
Range <int> .Infinite
};
var compositeRange = new CompositeRange <int>(ranges);
AreEqual(
compositeRange.ToString(),
"(-∞..+∞): { (-∞..+∞); [0..6]; [1..2]; [1..2]; [3..4]; [3..5); [3..5]; (3..5); (3..5]; (4..6); [7..8) }");
compositeRange = ranges.OrderBy(r => rnd.Next()).ToCompositeRange();
AreEqual(
compositeRange.ToString(),
"(-∞..+∞): { (-∞..+∞); [0..6]; [1..2]; [1..2]; [3..4]; [3..5); [3..5]; (3..5); (3..5]; (4..6); [7..8) }");
compositeRange = ranges.Take(ranges.Length - 1).ToCompositeRange();
AreEqual(
compositeRange.ToString(),
"[0..8): { [0..6]; [1..2]; [1..2]; [3..4]; [3..5); [3..5]; (3..5); (3..5]; (4..6); [7..8) }");
compositeRange = ranges.Take(ranges.Length - 1).OrderBy(r => rnd.Next()).ToCompositeRange();
AreEqual(
compositeRange.ToString(),
"[0..8): { [0..6]; [1..2]; [1..2]; [3..4]; [3..5); [3..5]; (3..5); (3..5]; (4..6); [7..8) }");
compositeRange = new CompositeRange <int>(ranges.Last());
AreEqual(compositeRange.ToString(), "(-∞..+∞): { (-∞..+∞) }");
compositeRange = new CompositeRange <int>(ranges.First());
AreEqual(compositeRange.ToString(), "∅");
compositeRange = new CompositeRange <int>(ranges.Take(0));
AreEqual(compositeRange.ToString(), "∅");
compositeRange = new CompositeRange <int>();
AreEqual(compositeRange.ToString(), "∅");
}