bradphelan
56 lines
2.2 KiB
C#
56 lines
2.2 KiB
C#
// Licensed to the .NET Foundation under one or more agreements.
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// The .NET Foundation licenses this file to you under the MIT license.
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// See the LICENSE file in the project root for more information.
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using System.IO;
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using System.Runtime.CompilerServices;
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namespace System.Numerics.Performance.Tests.Common.System
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{
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/// <summary>Static helper class for performance tests</summary>
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public class PerfUtils
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{
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private Random _rand;
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/// <summary>
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/// Initializes a new PerfUtils object with the default random seed.
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/// </summary>
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public PerfUtils()
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{
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_rand = new Random(1234132);
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}
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/// <summary>
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/// Initializes a new PerfUtils object with the given seed. Use this if also
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/// using MemberData that was created using PerfUtils to avoid possible collision
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/// errors.
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/// </summary>
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public PerfUtils(int seed)
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{
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_rand = new Random(seed);
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}
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/// <summary>
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/// Helper method to create a string containing a number of random
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/// characters equal to the specified length
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/// </summary>
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public string CreateString(int length)
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{
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byte[] bytes = new byte[length];
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_rand.NextBytes(bytes);
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return Convert.ToBase64String(bytes);
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}
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/// <summary>Gets a test file full path that is associated with the call site.</summary>
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/// <param name="index">An optional index value to use as a suffix on the file name. Typically a loop index.</param>
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/// <param name="memberName">The member name of the function calling this method.</param>
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/// <param name="lineNumber">The line number of the function calling this method.</param>
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public string GetTestFilePath(int? index = null, [CallerMemberName] string memberName = null, [CallerLineNumber] int lineNumber = 0)
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{
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return Path.Combine(Path.GetTempPath(), string.Format(
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index.HasValue ? "{0}_{1}_{2}_{3}" : "{0}_{1}_{2}",
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memberName ?? "TestBase", lineNumber, Path.GetRandomFileName(),
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index.GetValueOrDefault()));
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}
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}
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} |