NUnit1026

The test or setup/teardown method is not public

Topic	Value
Id	NUnit1026
Severity	Error
Enabled	True
Category	Structure
Code	TestMethodAccessibilityLevelAnalyzer

Description

The test or setup/teardown method is not public.

Motivation

To prevent tests that will fail at runtime, as NUnit only runs public test methods.

How to fix violations

Example Violation

private int Value;

[SetUp]
void NUnit1026SetUp()
{
    Value = 42;
}

[Test]
void NUnit1026SampleTest()
{
    Assert.That(Value, Is.GreaterThan(0));
}

[TestCase(1)]
private protected static void NUnit1026SampleTest2(int i)
{
    Assert.Pass();
}

Explanation

In the example above, the test named NUnit1026SampleTest is not public - it has the default access modifier for a method, i.e. internal. NUnit1026SampleTest2 has the explicit access modifier private protected, which again is not public. NUnit only runs public methods, so neither test can be run.

Fix

The analyzer comes with a code fix that will change the access modifier to public. So the tests above will be changed into.

private int Value;

[SetUp]
public void NUnit1026SetUp()
{
    Value = 42;
}

[Test]
public void NUnit1026SampleTest()
{
    Assert.That(Value, Is.GreaterThan(0));
}

[TestCase(1)]
public static void NUnit1026SampleTest2(int i)
{
    Assert.Pass();
}

Configure severity

Via ruleset file

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

Via .editorconfig file

# NUnit1026: The test or setup/teardown method is not public
dotnet_diagnostic.NUnit1026.severity = chosenSeverity

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

Via #pragma directive

#pragma warning disable NUnit1026 // The test or setup/teardown method is not public
Code violating the rule here
#pragma warning restore NUnit1026 // The test or setup/teardown method is not public

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

#pragma warning disable NUnit1026 // The test or setup/teardown method is not public

Via attribute [SuppressMessage]

[System.Diagnostics.CodeAnalysis.SuppressMessage("Structure",
    "NUnit1026:The test or setup/teardown method is not public",
    Justification = "Reason...")]