Closed
Description
Issue
I am trying to run several cases of a parametrized test in parallel. Here is the code I'm using:
class Dummy
{
static TestCaseData Case(int i)
=> new TestCaseData(TimeSpan.FromSeconds(2)).SetName($"Case {i}");
public static IEnumerable<TestCaseData> Cases()
=> Enumerable.Range(1, 5).Select(Case);
[TestCaseSource(nameof(Cases)), Parallelizable]
public void ItShouldSleep(TimeSpan t)
=> Thread.Sleep(t);
}
When I run this using the Visual Studio test runner, I can see the individual cases being executed one at a time, and the overall test run takes ~10 seconds. I would expect all the cases to be executed simultaneously on separate threads, and for the overall run to take ~2 seconds.
Setup
I am using the following .NET Standard based csproj file alongside the code above:
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Library</OutputType>
<TargetFramework>netcoreapp2.0</TargetFramework>
<ApplicationIcon />
<StartupObject />
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.3.0" />
<PackageReference Include="NUnit" Version="3.8.1" />
<PackageReference Include="NUnit3TestAdapter" Version="3.8.0" />
</ItemGroup>
</Project>
NuGet packages:
- Microsoft.NET.Test.Sdk: v15.3.0
- Microsoft.NETCore.App: v2.0.0
- NUnit: v3.8.1
- NUnit3TestAdapter: v3.8.0
Visual Studio:
- NUnit 3 Test Adapter: 3.8.0.0
- Visual Studio: 15.3.5