43 lines
2 KiB
C#
43 lines
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 BenchmarkDotNet.Validators;
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using System.Collections.Generic;
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using System.Linq;
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using BenchmarkDotNet.Running;
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namespace BenchmarkDotNet.Extensions
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{
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public class UniqueArgumentsValidator : IValidator
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{
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public bool TreatsWarningsAsErrors => true;
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public IEnumerable<ValidationError> Validate(ValidationParameters validationParameters)
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=> validationParameters.Benchmarks
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.Where(benchmark => benchmark.HasArguments || benchmark.HasParameters)
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.GroupBy(benchmark => (benchmark.Descriptor.Type, benchmark.Descriptor.WorkloadMethod, benchmark.Job))
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.Where(sameBenchmark =>
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{
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int numberOfUniqueTestCases = sameBenchmark.Distinct(new BenchmarkArgumentsComparer()).Count();
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int numberOfTestCases = sameBenchmark.Count();
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return numberOfTestCases != numberOfUniqueTestCases;
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})
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.Select(duplicate => new ValidationError(true, $"Benchmark Arguments should be unique, {duplicate.Key.Type}.{duplicate.Key.WorkloadMethod} has duplicate arguments.", duplicate.First()));
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private class BenchmarkArgumentsComparer : IEqualityComparer<BenchmarkCase>
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{
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public bool Equals(BenchmarkCase x, BenchmarkCase y)
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=> Enumerable.SequenceEqual(
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x.Parameters.Items.Select(argument => argument.Value),
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y.Parameters.Items.Select(argument => argument.Value));
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public int GetHashCode(BenchmarkCase obj)
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=> obj.Parameters.Items
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.Where(item => item.Value != null)
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.Aggregate(seed: 0, (hashCode, argument) => hashCode ^= argument.Value.GetHashCode());
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}
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}
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}
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