public void HelperFunction(TextWriter output, object context, params object[] arguments)
{
if (arguments.Length < 2)
{
throw new HandlebarsException(string.Format("{{{{{0}}}}} helper must have at least two arguments", HelperName));
}
var parms = new GetLocalizedParam
{
CultureInfo = Thread.CurrentThread.CurrentCulture,
Category = (arguments[0] ?? string.Empty).ToString(),
Key = (arguments[1] ?? string.Empty).ToString(),
};
string format = _localizationProvider.GetLocalizedString(parms);
string resourceValue;
if (format != null) // Do not use !IsNullOrWhiteSpace, user might want to display empty string.
{
var options = new object[arguments.Length - 2];
Array.Copy(arguments, 2, options, 0, options.Length);
resourceValue = string.Format(format, options);
}
else
{
resourceValue = GetMissingValueHint(parms);
}
output.WriteSafeString(resourceValue);
}
public void WHEN_culture_is_null_SHOULD_throw_invalid_argument_exception()
{
var param = new GetLocalizedParam
{
Category = "ResxLocalizationTest",
Key = "PageTitle"
};
Expression <Func <string> > expression = () => _localizationProvider.GetLocalizedString(param);
var exception = Assert.Throws <ArgumentException>(() => expression.Compile().Invoke());
exception.ParamName.Should().BeEquivalentTo(GetParamsInfo(expression)[0].Name);
exception.Message.Should().StartWith(GetMessageOfNullWhiteSpace(nameof(param.CultureInfo.Name)));
}
/// <summary>
/// Format the requested Key to be displayed as a hint on missing localization
/// </summary>
/// <param name="param"></param>
/// <returns></returns>
private string GetMissingValueHint(GetLocalizedParam param)
{
return(string.Format("[{0}.{1}]", param.Category, param.Key));
}
