[Root] / FluentAssertions Assembly / FluentAssertions.Specialized Namespace / AsyncFunctionAssertions<TTask,TAssertions> Class / NotThrowAsync<TException> Method
The type of exception expected to not be thrown.
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
    NotThrowAsync<TException> Method (AsyncFunctionAssertions<TTask,TAssertions>)
    In This Topic
    Asserts that the current Func does not throw an exception of type TException.
    Syntax
    [AsyncStateMachine(FluentAssertions.Specialized.AsyncFunctionAssertions`2/d__12`1)] 
    [DebuggerStepThrough()] 
    public Task<AndConstraint<TAssertions>> NotThrowAsync<TException>( 
       string because, 
       params object[] becauseArgs 
    ) 
    where TException: Exception

    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.

    Type Parameters

    TException
    The type of exception expected to not be thrown.
    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