Search Results for

    Show / Hide Table of Contents

    NUnit2021

    Incompatible types for EqualTo constraint

    Topic Value
    Id NUnit2021
    Severity Error
    Enabled True
    Category Assertion
    Code EqualToIncompatibleTypesAnalyzer

    Description

    The EqualTo constraint always fails as the actual and the expected value cannot be equal.

    Motivation

    class Foo { }
    class Bar { }
    
    var foo = new Foo();
    var bar = new Bar();
    
    Assert.That(foo, Is.EqualTo(bar));
    

    There is no way that instances of types Foo and Bar could be considered equal, therefore such assertion will always fail.

    How to fix violations

    Fix your assertion (i.e. fix actual or expected value, or choose another constraint).

    Configure severity

    Via ruleset file

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

    Via .editorconfig file

    # NUnit2021: Incompatible types for EqualTo constraint
    dotnet_diagnostic.NUnit2021.severity = chosenSeverity
    

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

    Via #pragma directive

    #pragma warning disable NUnit2021 // Incompatible types for EqualTo constraint
    Code violating the rule here
    #pragma warning restore NUnit2021 // Incompatible types for EqualTo constraint
    

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

    #pragma warning disable NUnit2021 // Incompatible types for EqualTo constraint
    

    Via attribute [SuppressMessage]

    [System.Diagnostics.CodeAnalysis.SuppressMessage("Assertion",
        "NUnit2021:Incompatible types for EqualTo constraint",
        Justification = "Reason...")]
    
    • Edit this page
    In this article
    Back to top Generated by DocFX | Copyright (c) 2018- The NUnit Project - Licensed under CC BY-NC-SA 4.0