public async Task GetValueAsync_WhenMissingService_ReturnsNull()
{
var threadingService = IProjectThreadingServiceFactory.Create();
var serviceProvider = IAsyncServiceProviderFactory.ImplementGetServiceAsync(type => null);
var service = CreateInstance <string, string>(serviceProvider: serviceProvider, threadingService: threadingService);
var result = await service.GetValueAsync();
Assert.Null(result);
}
public async Task GetValueAsync_CancelledToken_ThrowsOperationCanceled()
{
var threadingService = IProjectThreadingServiceFactory.Create();
var serviceProvider = IAsyncServiceProviderFactory.ImplementGetServiceAsync(type => null);
var service = CreateInstance <string, string>(serviceProvider: serviceProvider, threadingService: threadingService);
await Assert.ThrowsAnyAsync <OperationCanceledException>(() =>
{
return(service.GetValueAsync(new CancellationToken(true)));
});
}
public async Task GetValueAsync_CachesResult()
{
var threadingService = IProjectThreadingServiceFactory.Create();
var serviceProvider = IAsyncServiceProviderFactory.ImplementGetServiceAsync(type =>
{
return(new object());
});
var service = CreateInstance <string, object>(serviceProvider: serviceProvider, threadingService: threadingService);
var result1 = await service.GetValueAsync();
var result2 = await service.GetValueAsync();
Assert.Same(result1, result2);
}
public async Task GetValueAsync_ReturnsGetService()
{
object input = new object();
var threadingService = IProjectThreadingServiceFactory.Create();
var serviceProvider = IAsyncServiceProviderFactory.ImplementGetServiceAsync(type =>
{
if (type == typeof(string))
{
return(input);
}
return(null);
});
var service = CreateInstance <string, object>(serviceProvider: serviceProvider, threadingService: threadingService);
var result = await service.GetValueAsync();
Assert.Same(input, result);
}
