/// <summary>
/// Make sure all asynchronous localizer loading is completed.
/// </summary>
/// <param name="localizer">Localizer to load.</param>
/// <param name="loadParentCulture">If true (false by default) the LoadAsync method will load the parent culture.</param>
/// <returns>The value task to await.</returns>
/// <remarks>The parent culture is actually used as fall back if a key is not found.</remarks>
public static ValueTask LoadAsync(this IStringLocalizer localizer, bool loadParentCulture = false)
{
if (localizer == null)
{
throw new ArgumentNullException(nameof(localizer));
}
return(JsonStringLocalizerAsync.LoadAsync(localizer, loadParentCulture));
}
public async Task ItShoultLoadLocalizerDataAsync()
{
var key = "TestKey";
var txt = "Test txt value.";
var cultureInfo = CultureInfo.GetCultureInfo("fr-FR");
using var waitHandler = new ManualResetEvent(false);
async Task <IReadOnlyDictionary <string, string> > loadAsync()
{
// Make sure the task is running asynchronously.
await Task.Delay(1).ConfigureAwait(false);
// Wait until signal.
waitHandler.WaitOne();
// Return data
return(new Dictionary <string, string>()
{
[key] = txt
});
};
var localizerFactoryMock = new Mock <IJsonStringLocalizerFactoryInternal>();
var loadingLocalizerMock = new Mock <IStringLocalizer>();
loadingLocalizerMock.SetupGet(x => x[key]).Returns(new LocalizedString(key, "..."));
// Setup the async localizer with the loadAsync task.
var localizer = new JsonStringLocalizerAsync(
loadAsync(),
cultureInfo,
localizerFactoryMock.Object,
loadingLocalizerMock.Object);
// Make sure the localized text is loading...
var loading = localizer[key];
Assert.Equal("...", loading.Value);
// Signal the async task.
waitHandler.Set();
// Make the localized text is loaded.
await JsonStringLocalizerAsync.LoadAsync(localizer, false).ConfigureAwait(false);
// Make sure the localized text is the one expected.
var value = localizer[key];
Assert.Equal(txt, value.Value);
}