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    NUnit1030

    The type of parameter provided by the TestCaseSource does not match the type of the parameter in the Test method

    Topic Value
    Id NUnit1030
    Severity Error
    Enabled True
    Category Structure
    Code TestCaseSourceUsesStringAnalyzer

    Description

    The type of parameters provided by the TestCaseSource must match the type of parameters in the Test method.

    Note that the current implementation only works for single parameters.

    Motivation

    A TestCaseSourceAttribute is used to pass parameters to a test method, but the test method expects a different type of parameter.

    private static readonly IEnumerable<string> NUnitNameSpaces = new[] { ".NUnit", ".NUnitExtensions" };
    
    [TestCaseSource(nameof(NUnitNameSpaces))]
    public void IsNUnit(int n)
    {
    }
    

    How to fix violations

    Match the type of parameters between the test data and the test method.

    Configure severity

    Via ruleset file

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

    Via .editorconfig file

    # NUnit1030: The type of parameter provided by the TestCaseSource does not match the type of the parameter in the Test method
    dotnet_diagnostic.NUnit1030.severity = chosenSeverity
    

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

    Via #pragma directive

    #pragma warning disable NUnit1030 // The type of parameter provided by the TestCaseSource does not match the type of the parameter in the Test method
    Code violating the rule here
    #pragma warning restore NUnit1030 // The type of parameter provided by the TestCaseSource does not match the type of the parameter in the Test method
    

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

    #pragma warning disable NUnit1030 // The type of parameter provided by the TestCaseSource does not match the type of the parameter in the Test method
    

    Via attribute [SuppressMessage]

    [System.Diagnostics.CodeAnalysis.SuppressMessage("Structure",
        "NUnit1030:The type of parameter provided by the TestCaseSource does not match the type of the parameter in the Test method",
        Justification = "Reason...")]
    
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