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Fluent Assertions Documentation
FluentAssertions Assembly / FluentAssertions.Primitives Namespace / StringAssertions<TAssertions> Class / BeNullOrWhiteSpace Method
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
    BeNullOrWhiteSpace Method
    In This Topic
    Asserts that a string is either a null reference (Nothing in Visual Basic) or System.String.Empty or white space
    Syntax
    public AndConstraint<TAssertions> BeNullOrWhiteSpace( 
   string because,
   params object[] becauseArgs
)

    Parameters

    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.
    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

    StringAssertions<TAssertions> Class
    StringAssertions<TAssertions> Members

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