public async Task SetAsyncDataProvider_ReturnsValueFromSyncTask()
{
DataPackage dataPackage = new DataPackage();
dataPackage.SetAsyncDataProvider(StandardDataFormats.Text, (formatId, deadline) =>
{
return Task.FromResult<object>("Test text");
});
DataPackageView dataPackageView = dataPackage.GetView();
string result = await dataPackageView.GetTextAsync();
Assert.AreEqual("Test text", result);
}
public async Task SetAsyncDataProvider_ReturnsValueFromAsyncTask()
{
DataPackage dataPackage = new DataPackage();
dataPackage.SetAsyncDataProvider(StandardDataFormats.Text, async (formatId, deadline) =>
{
await Task.Delay(200);
return "Test text";
});
DataPackageView dataPackageView = dataPackage.GetView();
string result = await dataPackageView.GetTextAsync();
Assert.AreEqual("Test text", result);
}
public async Task SetAsyncDataProvider_PassesDeadlineToMethod()
{
DataPackage dataPackage = new DataPackage();
DateTimeOffset deadlineValue = DateTimeOffset.MinValue;
dataPackage.SetAsyncDataProvider(StandardDataFormats.Text, (formatId, deadline) =>
{
deadlineValue = deadline;
return Task.FromResult<object>("Test text");
});
DataPackageView dataPackageView = dataPackage.GetView();
string result = await dataPackageView.GetTextAsync();
Assert.AreNotEqual(DateTimeOffset.MinValue, deadlineValue);
}
public async Task SetAsyncDataProvider_PassesFormatIdToMethod()
{
DataPackage dataPackage = new DataPackage();
string formatIdValue = null;
dataPackage.SetAsyncDataProvider(StandardDataFormats.Text, (formatId, deadline) =>
{
formatIdValue = formatId;
return Task.FromResult<object>("Test text");
});
DataPackageView dataPackageView = dataPackage.GetView();
string result = await dataPackageView.GetTextAsync();
Assert.AreEqual(StandardDataFormats.Text, formatIdValue);
}