public void AddCaching_RegistersDistributedCacheAsTransient()
{
// Arrange
var services = new ServiceCollection();
// Act
services.AddCaching();
// Assert
var distributedCache = services.FirstOrDefault(desc => desc.ServiceType == typeof(IDistributedCache));
Assert.NotNull(distributedCache);
Assert.Equal(ServiceLifetime.Transient, distributedCache.Lifetime);
}
public void AddCaching_RegistersMemoryCacheAsSingleton()
{
// Arrange
var services = new ServiceCollection();
// Act
services.AddCaching();
// Assert
var memoryCache = services.FirstOrDefault(desc => desc.ServiceType == typeof(IMemoryCache));
Assert.NotNull(memoryCache);
Assert.Equal(ServiceLifetime.Singleton, memoryCache.Lifetime);
}
public void AddCaching_DoesNotReplaceUserRegisteredServices()
{
// Arrange
var services = new ServiceCollection();
services.AddScoped<IMemoryCache, TestMemoryCache>();
services.AddScoped<IDistributedCache, TestDistributedCache>();
// Act
services.AddCaching();
// Assert
var serviceProvider = services.BuildServiceProvider();
var memoryCache = services.FirstOrDefault(desc => desc.ServiceType == typeof(IMemoryCache));
Assert.NotNull(memoryCache);
Assert.Equal(ServiceLifetime.Scoped, memoryCache.Lifetime);
Assert.IsType<TestMemoryCache>(serviceProvider.GetRequiredService<IMemoryCache>());
var distributedCache = services.FirstOrDefault(desc => desc.ServiceType == typeof(IDistributedCache));
Assert.NotNull(distributedCache);
Assert.Equal(ServiceLifetime.Scoped, memoryCache.Lifetime);
Assert.IsType<TestDistributedCache>(serviceProvider.GetRequiredService<IDistributedCache>());
}