57 lines
1.4 KiB
C#
57 lines
1.4 KiB
C#
using FluentAssertions;
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using PerfectNumbers.Core;
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using Xunit;
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namespace PerfectNumbers.Core.Tests;
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public class PollingSemaphoreTests
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{
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[Fact]
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[Trait("Category", "Fast")]
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public void TryEnter_AllowsConfiguredConcurrency()
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{
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var semaphore = new PollingSemaphore(2, TimeSpan.Zero);
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semaphore.TryEnter().Should().BeTrue();
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semaphore.TryEnter().Should().BeTrue();
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semaphore.TryEnter().Should().BeFalse();
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semaphore.Release();
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semaphore.Release();
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}
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[Fact]
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[Trait("Category", "Fast")]
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public async Task Wait_BlocksUntilRelease()
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{
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var semaphore = new PollingSemaphore(1, TimeSpan.FromMilliseconds(1));
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semaphore.TryEnter().Should().BeTrue();
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Task<bool> waiter = Task.Run(() => semaphore.Wait(TimeSpan.FromMilliseconds(200)));
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await Task.Delay(20);
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semaphore.Release();
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bool entered = await waiter;
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entered.Should().BeTrue();
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semaphore.Release();
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}
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[Fact]
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[Trait("Category", "Fast")]
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public void Wait_ReturnsFalseWhenTimeoutHits()
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{
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var semaphore = new PollingSemaphore(1, TimeSpan.FromMilliseconds(2));
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semaphore.TryEnter().Should().BeTrue();
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bool acquired = semaphore.Wait(TimeSpan.FromMilliseconds(30));
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acquired.Should().BeFalse();
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semaphore.Release();
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}
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}
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