76 lines
2.6 KiB
C#
76 lines
2.6 KiB
C#
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using System;
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using System.Diagnostics.CodeAnalysis;
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using Exa;
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using NUnit.Framework;
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namespace ExaArrayTests
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{
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[ExcludeFromCodeCoverage]
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public class ExaArray2DTests
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{
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[Test]
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[Category("cover")]
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[Category("normal")]
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public void CreatingNormalSize01()
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{
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var arr = new ExaArray2D<int>();
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// Empty array must have length = 0:
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Assert.That(arr.Length, Is.EqualTo(0));
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// Try to access some points, which should return default(T):
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Assert.That(arr[0, 0], Is.EqualTo(default(int)));
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Assert.That(arr[1_000_000, 1_000_000], Is.EqualTo(default(int)));
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// Even after accessing some points, there should be no space allocated i.e. length is still 0:
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Assert.That(arr.Length, Is.EqualTo(0));
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// Write an int to a position:
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arr[500, 500] = 4_756;
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// Now, we have 500 empty "rows" + 1 "row" with 501 (0-500) elements:
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Assert.That(arr.Length, Is.EqualTo(501));
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// Should be possible to read out the value:
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Assert.That(arr[500, 500], Is.EqualTo(4_756));
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// Change the value:
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arr[500, 500] = 100;
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Assert.That(arr[500, 500], Is.EqualTo(100));
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// Still the same size:
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Assert.That(arr.Length, Is.EqualTo(501));
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// Add another value in the same "row":
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arr[500, 499] = 499;
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Assert.That(arr[500, 499], Is.EqualTo(499));
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Assert.That(arr[500, 500], Is.EqualTo(100));
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// Now, we should have still 501 elements, because
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// we added the new value "below" the previously:
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Assert.That(arr.Length, Is.EqualTo(501));
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// Add another value in the same "row", but higher:
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arr[500, 1_000] = 6;
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Assert.That(arr[500, 499], Is.EqualTo(499));
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Assert.That(arr[500, 500], Is.EqualTo(100));
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Assert.That(arr[500, 1_000], Is.EqualTo(6));
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// Now we should have more elements:
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Assert.That(arr.Length, Is.EqualTo(1_001));
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}
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[Test]
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[Category("cover")]
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[Category("normal")]
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public void CreatingHugeSize01()
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{
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var arr = new ExaArray2D<int>();
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arr[0, 1_000_000] = 47;
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Assert.Throws<ArgumentOutOfRangeException>(() =>
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{
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arr[1, UInt64.MaxValue - 1] = 6;
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});
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}
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}
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}
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