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Fluent Assertions Documentation
[Root] / FluentAssertions Assembly / FluentAssertions.Types Namespace / MethodInfoAssertions Class / NotReturn Method / NotReturn(Type,String,Object[]) Method
The unexpected return type.
A formatted phrase as is supported by System.String.Format(System.String,System.Object[]) explaining why the assertion is needed. If the phrase does not start with the word because, it is prepended automatically.
Zero or more objects to format using the placeholders in because.
In This Topic
    NotReturn(Type,String,Object[]) Method
    In This Topic
    Asserts that the selected method does not return returnType.
    Syntax
    public AndConstraint<MethodBaseAssertions<MethodInfo,MethodInfoAssertions>> NotReturn( 
   Type returnType,
   string because,
   params object[] becauseArgs
)

    Parameters

    returnType
    The unexpected return type.
    because
    A formatted phrase as is supported by System.String.Format(System.String,System.Object[]) explaining why the assertion is needed. If the phrase does not start with the word because, it is prepended automatically.
    becauseArgs
    Zero or more objects to format using the placeholders in because.
    Exceptions
    ExceptionDescription
    System.ArgumentNullExceptionreturnType is a null reference (Nothing in Visual Basic).
    Supported Frameworks

    .NET: net5.0, net5.0-windows, net6.0, net6.0-macos, net6.0-windows, net7.0, net7.0-macos, net7.0-windows, net8.0, net8.0-browser, net8.0-macos, net8.0-windows, net9.0, net9.0-browser, net9.0-macos, net9.0-windows, net10.0, net10.0-browser, net10.0-macos, net10.0-windows.

    .NET Standard: netstandard2.0, netstandard2.1.

    .NET Framework: net40, net403, net45, net451, net452, net46, net461, net462, net463, net47, net471, net472, net48, net481.

    See Also

    Reference

    MethodInfoAssertions Class
    MethodInfoAssertions Members
    Overload List

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