mirror of
https://github.com/oliverbooth/X10D
synced 2024-10-19 05:26:11 +00:00
Oliver Booth
3c60340bde
Computes the element-wise product, optionally with a transformation delegate
91 lines
2.1 KiB
C#
91 lines
2.1 KiB
C#
using Microsoft.VisualStudio.TestTools.UnitTesting;
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namespace X10D.Tests.Core;
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public partial class EnumerableTests
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{
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[TestMethod]
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[DataRow(0f, 1f)]
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[DataRow(2f, 3f, 4f)]
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[DataRow(1f, 2f, 3f, 4f, 5f, 6f, 7f, 8f, 9f, 10f)] // 10!
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public void ProductSingle_Fixed(params float[] source)
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{
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var expected = 1f;
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foreach (float item in source)
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{
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expected *= item;
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}
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float actual = source.Product();
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Assert.AreEqual(expected, actual);
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}
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[TestMethod]
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[DataRow(0f, 1f)]
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[DataRow(2f, 3f, 4f)]
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[DataRow(1f, 2f, 3f, 4f, 5f, 6f, 7f, 8f, 9f, 10f)] // 10!
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public void ProductSingle_Transformed_Fixed(params float[] source)
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{
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var expected = 1f;
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foreach (float item in source)
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{
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expected *= item * 2;
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}
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float actual = source.Product(n => n * 2);
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Assert.AreEqual(expected, actual);
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}
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[TestMethod]
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public void ProductSingle_Random1000()
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{
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var random = new Random();
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for (var i = 0; i < 1000; i++)
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{
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var source = new float[10];
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for (var j = 0; j < source.Length; j++)
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{
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source[j] = (float)random.NextDouble();
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}
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var expected = 1f;
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foreach (float item in source)
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{
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expected *= item;
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}
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float actual = source.Product();
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Assert.AreEqual(expected, actual);
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}
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}
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[TestMethod]
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public void ProductSingle_Transformed_Random1000()
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{
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var random = new Random();
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for (var i = 0; i < 1000; i++)
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{
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var source = new float[10];
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for (var j = 0; j < source.Length; j++)
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{
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source[j] = (float)random.NextDouble();
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}
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var expected = 1f;
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foreach (float item in source)
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{
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expected *= item * 2;
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}
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float actual = source.Product(n => n * 2);
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Assert.AreEqual(expected, actual);
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}
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}
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}
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