NUnit1022

The specified source is not static

Topic	Value
Id	NUnit1022
Severity	Error
Enabled	True
Category	Structure
Code	ValueSourceUsageAnalyzer

Description

The specified source must be static.

Motivation

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

How to fix violations

Example Violation

public class MyTestClass
{
    [Test]
    public void DivideTest([ValueSource(nameof(Numbers))] int n)
    {
        ClassicAssert.AreEqual(n, Is.GreaterThanOrEqualTo(0));
    }

    object[] Numbers => new int[] { 1, 2, 3 };
}

Explanation

In the sample above, Numbers is not a static property.

However, sources specified by ValueSource must be static.

Fix

Make the source static:

public class MyTestClass
{
    [Test]
    public void DivideTest([ValueSource(nameof(Numbers))] int n)
    {
        ClassicAssert.AreEqual(n, Is.GreaterThanOrEqualTo(0));
    }

    static object[] Numbers => new int[] { 1, 2, 3 };
}

Configure severity

Via ruleset file

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

Via .editorconfig file

# NUnit1022: The specified source is not static
dotnet_diagnostic.NUnit1022.severity = chosenSeverity

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

Via #pragma directive

#pragma warning disable NUnit1022 // The specified source is not static
Code violating the rule here
#pragma warning restore NUnit1022 // The specified source is not static

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

#pragma warning disable NUnit1022 // The specified source is not static

Via attribute [SuppressMessage]

[System.Diagnostics.CodeAnalysis.SuppressMessage("Structure",
    "NUnit1022:The specified source is not static",
    Justification = "Reason...")]