NUnit1010

One may not specify ParallelScope.Fixtures on a test method

Topic	Value
Id	NUnit1010
Severity	Error
Enabled	True
Category	Structure
Code	ParallelizableUsageAnalyzer

Description

One may not specify ParallelScope.Fixtures on a test method.

Motivation

To prevent tests that will fail at runtime due to improper construction.

How to fix violations

Example Violation

[Parallelizable(ParallelScope.Fixtures)]
[Test]
public void NUnit1010SampleTest()
{
    Assert.Pass();
}

Explanation

In the sample above, ParallelScope.Fixtures is specified.

However, in the context of a test method, a scope of Fixtures does not make sense. This scope only applies at the assembly or class level.

Fix

Remove the attribute:

[Test]
public void NUnit1010SampleTest()
{
    Assert.Pass();
}

Or apply this attribute at the class level:

[Parallelizable(ParallelScope.Fixtures)]
public class MyTests
{
    [Test]
    public void NUnit1010SampleTest()
    {
        Assert.Pass();
    }
}

Or use a different attribute that applies at the test level:

[Parallelizable(ParallelScope.Self)]
[Test]
public void NUnit1010SampleTest()
{
    Assert.Pass();
}

Configure severity

Via ruleset file

Configure the severity per project, for more info see MSDN.

Via .editorconfig file

# NUnit1010: One may not specify ParallelScope.Fixtures on a test method
dotnet_diagnostic.NUnit1010.severity = chosenSeverity

where chosenSeverity can be one of none, silent, suggestion, warning, or error.

Via #pragma directive

#pragma warning disable NUnit1010 // One may not specify ParallelScope.Fixtures on a test method
Code violating the rule here
#pragma warning restore NUnit1010 // One may not specify ParallelScope.Fixtures on a test method

Or put this at the top of the file to disable all instances.

#pragma warning disable NUnit1010 // One may not specify ParallelScope.Fixtures on a test method

Via attribute [SuppressMessage]

[System.Diagnostics.CodeAnalysis.SuppressMessage("Structure",
    "NUnit1010:One may not specify ParallelScope.Fixtures on a test method",
    Justification = "Reason...")]