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Unit test with Fixture added for TraceGenerator
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3 files changed

+190
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‎TraceGenerator.Tests/TraceGenerator.Tests.csproj‎

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<TargetFramework>netcoreapp3.1</TargetFramework>
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<IsPackable>false</IsPackable>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.1.0" />
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<PackageReference Include="xunit" Version="2.4.1" />
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<PackageReference Include="xunit.runner.visualstudio" Version="2.4.3">
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<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
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<PrivateAssets>all</PrivateAssets>
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</PackageReference>
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<PackageReference Include="coverlet.collector" Version="3.1.2">
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<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
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<PrivateAssets>all</PrivateAssets>
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</PackageReference>
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</ItemGroup>
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<ItemGroup>
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<ProjectReference Include="..\TraceGenerator\TraceGenerator.csproj" />
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</ItemGroup>
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</Project>

‎TraceGenerator.Tests/TraceGeneratorTests.cs‎

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using System;
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using System.IO;
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using Xunit;
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namespace TraceGenerator.Tests
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{
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public class TraceGeneratorFixture : IDisposable
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{
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public int RamSizeInMB { get; set; } = 1_000;
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public TraceGenerator TraceGenerator { get; private set; }
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public TraceGeneratorFixture()
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{
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TraceGenerator = new TraceGenerator("medium");
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}
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public void Dispose()
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{
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var filename = "instructions-*.trace";
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var dir = new DirectoryInfo(AppDomain.CurrentDomain.BaseDirectory);
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var files = dir.GetFiles(filename);
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foreach (var file in files)
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{
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File.Delete(file.FullName);
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}
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}
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}
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public class TraceGeneratorTests : IClassFixture<TraceGeneratorFixture>
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{
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readonly TraceGeneratorFixture fixture;
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private readonly int ramSizeInMB = 1_000;
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private readonly int dataBlockSize = 32;
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public TraceGeneratorTests(TraceGeneratorFixture fixture)
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{
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this.fixture = fixture;
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}
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[Fact]
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public void Generating_Trace_File()
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{
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fixture.TraceGenerator.GenerateTraceFile(ramSizeInMB, dataBlockSize);
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var expectedNumberOfRamInstances = 1;
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var filename = "instructions-*.trace";
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var actualNumberOfRamInstances = Directory.GetFiles(AppDomain.CurrentDomain.BaseDirectory, filename).Length;
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Assert.Equal(expectedNumberOfRamInstances, actualNumberOfRamInstances);
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}
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[Fact]
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public void Generating_Trace_File_Twice()
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{
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fixture.TraceGenerator.GenerateTraceFile(ramSizeInMB, dataBlockSize);
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fixture.TraceGenerator.GenerateTraceFile(ramSizeInMB, dataBlockSize);
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var filename = "instructions-*.trace";
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var expectedNumberOfRamInstances = 1;
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var actualNumberOfRamInstances = Directory.GetFiles(AppDomain.CurrentDomain.BaseDirectory, filename).Length;
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Assert.Equal(expectedNumberOfRamInstances, actualNumberOfRamInstances);
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}
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[Fact]
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public void Generating_Trace_File_With_Wrong_Size()
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{
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Assert.Throws<Exception>(() => new TraceGenerator("tiny"));
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}
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[Theory]
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[InlineData("small", 100)]
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[InlineData("medium", 1_000)]
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[InlineData("large", 10_000)]
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public void Checking_Trace_File_Line_Number(string size, int expectedNumberOfLines)
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{
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var trace = new TraceGenerator(size);
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trace.GenerateTraceFile(ramSizeInMB, dataBlockSize);
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using var stream = File.OpenRead(trace.FileName);
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var lineCount = 0;
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const char CR = '\r';
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const char LF = '\n';
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const char NULL = (char)0;
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var byteBuffer = new byte[1024 * 1024];
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const int bytesAtTheTime = 4;
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var detectedEOL = NULL;
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var currentChar = NULL;
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int bytesRead;
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while ((bytesRead = stream.Read(byteBuffer, 0, byteBuffer.Length)) > 0)
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{
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var i = 0;
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for (; i <= bytesRead - bytesAtTheTime; i += bytesAtTheTime)
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{
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currentChar = (char)byteBuffer[i];
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if (detectedEOL != NULL)
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{
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if (currentChar == detectedEOL)
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{ lineCount++; }
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currentChar = (char)byteBuffer[i + 1];
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if (currentChar == detectedEOL)
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{ lineCount++; }
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currentChar = (char)byteBuffer[i + 2];
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if (currentChar == detectedEOL)
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{ lineCount++; }
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currentChar = (char)byteBuffer[i + 3];
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if (currentChar == detectedEOL)
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{ lineCount++; }
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}
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else
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{
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if (currentChar == LF || currentChar == CR)
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{
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detectedEOL = currentChar;
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lineCount++;
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}
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i -= bytesAtTheTime - 1;
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}
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}
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for (; i < bytesRead; i++)
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{
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currentChar = (char)byteBuffer[i];
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if (detectedEOL != NULL)
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{
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if (currentChar == detectedEOL)
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{ lineCount++; }
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}
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else
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{
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if (currentChar == LF || currentChar == CR)
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{
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detectedEOL = currentChar;
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lineCount++;
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}
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}
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}
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}
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if (currentChar != LF && currentChar != CR && currentChar != NULL)
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{
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lineCount++;
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}
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Assert.Equal(expectedNumberOfLines, lineCount);
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}
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}
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}
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‎cache-simulator.sln‎

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@@ -13,7 +13,9 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TraceGenerator", "TraceGene
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EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CacheSimulator", "CacheSimulator\CacheSimulator.csproj", "{66DEB549-830E-4E69-9B70-932910100071}"
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EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RamGenerator.Tests", "RamGenerator.Tests\RamGenerator.Tests.csproj", "{83BCA7BF-405F-4379-83F4-496531F89B95}"
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Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "RamGenerator.Tests", "RamGenerator.Tests\RamGenerator.Tests.csproj", "{83BCA7BF-405F-4379-83F4-496531F89B95}"
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EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TraceGenerator.Tests", "TraceGenerator.Tests\TraceGenerator.Tests.csproj", "{7DD0C47E-4A65-4693-B9F9-54685B280236}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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{83BCA7BF-405F-4379-83F4-496531F89B95}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{83BCA7BF-405F-4379-83F4-496531F89B95}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{83BCA7BF-405F-4379-83F4-496531F89B95}.Release|Any CPU.Build.0 = Release|Any CPU
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{7DD0C47E-4A65-4693-B9F9-54685B280236}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{7DD0C47E-4A65-4693-B9F9-54685B280236}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{7DD0C47E-4A65-4693-B9F9-54685B280236}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{7DD0C47E-4A65-4693-B9F9-54685B280236}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE

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