/// <summary>
/// Validates the Formatters from action result containing one.
/// </summary>
/// <param name="actionResult">Action result with Formatters.</param>
/// <param name="mediaTypeFormatter">Expected MediaTypeFormatter.</param>
/// <param name="failedValidationAction">Action to call in case of failed validation.</param>
public static void ValidateMediaTypeFormatter(
dynamic actionResult,
MediaTypeFormatter mediaTypeFormatter,
Action<string, string, string> failedValidationAction)
{
RuntimeBinderValidator.ValidateBinding(() =>
{
var formatters = TryGetMediaTypeFormatters(actionResult) as IEnumerable<MediaTypeFormatter>;
if (formatters == null || formatters.All(f => Reflection.AreDifferentTypes(f, mediaTypeFormatter)))
{
failedValidationAction(
"Formatters",
string.Format("to contain {0}", mediaTypeFormatter.GetName()),
"none was found");
}
});
}
