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Fluent Assertions Documentation
FluentAssertions Assembly / FluentAssertions.Primitives Namespace / StringAssertions<TAssertions> Class / BeUpperCased 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
    BeUpperCased Method
    In This Topic
    Asserts that all cased characters in a string are upper-case. That is, that the string could be the result of a call to System.String.ToUpperInvariant.
    Syntax
    public AndConstraint<TAssertions> BeUpperCased( 
   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.
    Remarks
    Numbers, special characters, and many Asian characters don't have casing, so BeUpperCased will ignore these and will fail only in the presence of lower-case characters.
    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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