public static void AddScopeCached<TInterface, TImplementation>(this IServiceCollection collection)
where TInterface : class
where TImplementation : class, TInterface
{
collection.AddScoped<TImplementation>();
collection.AddScoped<TInterface>(provider =>
{
var service = provider.GetService<TImplementation>();
return LifetimeCacheDecorator<TInterface>.Create(service);
});
}
public static void AddScopeCached<TInterface, TImplementation>(this IServiceCollection collection,
Func<IServiceProvider, TImplementation> implFactory)
where TInterface : class
where TImplementation : class, TInterface
{
if (implFactory == null)
{
throw new ArgumentNullException(nameof(implFactory));
}
collection.AddScoped<TInterface>(provider =>
{
var svc = implFactory(provider);
return LifetimeCacheDecorator<TInterface>.Create(svc);
});
}
public void WhenArgsAreDifferent_IndependentCallIsMade(object input1, object input2)
{
using (var sw = new StringWriter())
{
Console.SetOut(sw);
var scopedDecorator = LifetimeCacheDecorator <IInternal> .Create(new Internal());
var call1Result = scopedDecorator.Write(input1);
var call2Result = scopedDecorator.Write(input2);
Console.SetOut(new StreamWriter(Console.OpenStandardError(Int32.MaxValue)));
var consoleMessages = sw.ToString().Split("\r\n", StringSplitOptions.RemoveEmptyEntries).ToList();
Assert.AreEqual(2, consoleMessages.Count);
Assert.IsTrue(consoleMessages.All(x => x == "RealMethodCall"));
}
}
public void WhenRepeatedCallWithSameArgIsMade_SecondCallReturnsDataFromScopedCache()
{
using (var sw = new StringWriter())
{
Console.SetOut(sw);
var scopedDecorator = LifetimeCacheDecorator <IInternal> .Create(new Internal());
var call1Result = scopedDecorator.Write(1);
var call2Result = scopedDecorator.Write(1);
var consoleMessages = sw.ToString().Split("\r\n", StringSplitOptions.RemoveEmptyEntries).ToList();
Assert.AreEqual(1, consoleMessages.Count);
Assert.AreEqual("RealMethodCall", consoleMessages.Single());
Assert.AreEqual("1", call1Result);
Assert.AreEqual("1", call2Result);
}
}
public void WhenRepeatedCallWithClassArgIsMade_SecondCallReturnsDataFromScopedCache(object input1, object input2)
{
using (var sw = new StringWriter())
{
Console.SetOut(sw);
var scopedDecorator = LifetimeCacheDecorator <IInternal> .Create(new Internal());
var call1Result = scopedDecorator.Write(input1);
var call2Result = scopedDecorator.Write(input2);
Console.SetOut(new StreamWriter(Console.OpenStandardError(Int32.MaxValue)));
var consoleMessages = sw.ToString().Split("\r\n", StringSplitOptions.RemoveEmptyEntries).ToList();
Assert.AreEqual(1, consoleMessages.Count);
Assert.AreEqual("RealMethodCall", consoleMessages.Single());
Assert.AreEqual(call1Result, call2Result);
}
}