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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,66 @@ | ||
| using NUnit.Framework; | ||
| using X10D.Core; | ||
|
|
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| namespace X10D.Tests.Core; | ||
|
|
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| [TestFixture] | ||
| internal class RangeTests | ||
| { | ||
| [Test] | ||
| public void Range_GetEnumerator_ShouldReturnRangeEnumerator() | ||
| { | ||
| Assert.Multiple(() => | ||
| { | ||
| Assert.That(5..10, Is.TypeOf<Range>()); | ||
| Assert.That((5..10).GetEnumerator(), Is.TypeOf<RangeEnumerator>()); | ||
| }); | ||
| } | ||
|
|
||
| [Test] | ||
| public void Loop_OverRange0To10_ShouldCountFrom0To10Inclusive() | ||
| { | ||
| int value = 0; | ||
|
|
||
| foreach (int i in 0..10) | ||
| { | ||
| Assert.That(i, Is.EqualTo(value)); | ||
| value++; | ||
| } | ||
| } | ||
|
|
||
| [Test] | ||
| public void Loop_OverRangeNegative5To5_ShouldCountFromNegative5To5Inclusive() | ||
| { | ||
| int value = -5; | ||
|
|
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| foreach (int i in ^5..5) | ||
| { | ||
| Assert.That(i, Is.EqualTo(value)); | ||
| value++; | ||
| } | ||
| } | ||
|
|
||
| [Test] | ||
| public void Loop_OverRange5ToNegative5_ShouldCountFrom5ToNegative5Inclusive() | ||
| { | ||
| int value = 5; | ||
|
|
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| foreach (int i in 5..^5) | ||
| { | ||
| Assert.That(i, Is.EqualTo(value)); | ||
| value--; | ||
| } | ||
| } | ||
|
|
||
| [Test] | ||
| public void Loop_OverRange10To0_ShouldCountFrom10To0Inclusive() | ||
| { | ||
| int value = 10; | ||
|
|
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| foreach (int i in 10..0) | ||
| { | ||
| Assert.That(i, Is.EqualTo(value)); | ||
| value--; | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,72 @@ | ||
| using NUnit.Framework; | ||
| using X10D.IO; | ||
|
|
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| namespace X10D.Tests.IO; | ||
|
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| [TestFixture] | ||
| internal class DecimalTests | ||
| { | ||
| [Test] | ||
| public void GetBigEndianBytes_ShouldReturnBytes_InBigEndian() | ||
| { | ||
| const decimal value = 1234m; | ||
| byte[] expected = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 210]; | ||
|
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| byte[] bytes = value.GetBigEndianBytes(); | ||
|
|
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| CollectionAssert.AreEqual(expected, bytes); | ||
| } | ||
|
|
||
| [Test] | ||
| public void GetLittleEndianBytes_ShouldReturnBytes_InLittleEndian() | ||
| { | ||
| const decimal value = 1234m; | ||
| byte[] expected = [210, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]; | ||
|
|
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| byte[] bytes = value.GetLittleEndianBytes(); | ||
|
|
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| CollectionAssert.AreEqual(expected, bytes); | ||
| } | ||
|
|
||
| [Test] | ||
| public void TryWriteBigEndianBytes_ShouldWriteBytes_InBigEndian() | ||
| { | ||
| const decimal value = 1234m; | ||
| byte[] expected = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 210]; | ||
|
|
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| Span<byte> bytes = stackalloc byte[16]; | ||
| Assert.That(value.TryWriteBigEndianBytes(bytes)); | ||
|
|
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| CollectionAssert.AreEqual(expected, bytes.ToArray()); | ||
| } | ||
|
|
||
| [Test] | ||
| public void TryWriteLittleEndianBytes_ShouldWriteBytes_InLittleEndian() | ||
| { | ||
| const decimal value = 1234m; | ||
| byte[] expected = [210, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]; | ||
|
|
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| Span<byte> bytes = stackalloc byte[16]; | ||
| Assert.That(value.TryWriteLittleEndianBytes(bytes)); | ||
|
|
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| CollectionAssert.AreEqual(expected, bytes.ToArray()); | ||
| } | ||
|
|
||
| [Test] | ||
| public void TryWriteBigEndianBytes_ShouldReturnFalse_GivenSmallSpan() | ||
| { | ||
| const decimal value = 1234m; | ||
|
|
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| Span<byte> bytes = Span<byte>.Empty; | ||
| Assert.That(value.TryWriteBigEndianBytes(bytes), Is.False); | ||
| } | ||
|
|
||
| [Test] | ||
| public void TryWriteLittleEndianBytes_ShouldReturnFalse_GivenSmallSpan() | ||
| { | ||
| const decimal value = 1234m; | ||
|
|
||
| Span<byte> bytes = Span<byte>.Empty; | ||
| Assert.That(value.TryWriteLittleEndianBytes(bytes), Is.False); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| namespace X10D.Core; | ||
|
|
||
| /// <summary> | ||
| /// Enumerates the indices of a <see cref="Range" />. | ||
| /// </summary> | ||
| public struct RangeEnumerator | ||
| { | ||
| private readonly bool _decrement; | ||
| private readonly int _endValue; | ||
|
|
||
| /// <summary> | ||
| /// Initializes a new instance of the <see cref="RangeEnumerator" /> structure. | ||
| /// </summary> | ||
| /// <param name="range">The range over which to enumerate.</param> | ||
| public RangeEnumerator(Range range) | ||
| { | ||
| Index start = range.Start; | ||
| Index end = range.End; | ||
|
|
||
| int startValue = start.IsFromEnd ? -start.Value : start.Value; | ||
| _endValue = end.IsFromEnd ? -end.Value : end.Value; | ||
|
|
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| _decrement = _endValue < startValue; | ||
| Current = _decrement ? startValue + 1 : startValue - 1; | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Gets the element in the collection at the current position of the enumerator. | ||
| /// </summary> | ||
| /// <value>The element in the collection at the current position of the enumerator.</value> | ||
| public int Current { get; private set; } | ||
|
|
||
| /// <summary> | ||
| /// Advances the enumerator to the next element of the collection. | ||
| /// </summary> | ||
| /// <returns> | ||
| /// <see langword="true" /> if the enumerator was successfully advanced to the next element; <see langword="false" /> if | ||
| /// the enumerator has passed the end of the collection. | ||
| /// </returns> | ||
| public bool MoveNext() | ||
| { | ||
| int value = Current; | ||
|
|
||
| if (_decrement) | ||
| { | ||
| Current--; | ||
| return value > _endValue; | ||
| } | ||
|
|
||
| Current++; | ||
| return value < _endValue; | ||
| } | ||
| } |
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