public void If_Services_Argument_Is_Null()
{
// Arrange
var builder = new CachedOptionsBuilder();
// Act, Assert
Assert.Throws <ArgumentNullException>(
() => builder.Build(null));
}
public void If_No_Cached_Services_Are_Configured()
{
// Arrange
var builder = new CachedOptionsBuilder();
// Act, Assert
Assert.Throws <InvalidOperationException>(
() => builder.Build(new Mock <IServiceCollection>().Object));
}
public void Expected_Service()
{
// Arrange
var services = new ServiceCollection();
var builder = new CachedOptionsBuilder();
builder.AddService(new FakeBuilder());
// Act
builder.Build(services);
ServiceProvider provider = services.BuildServiceProvider();
// Assert
Assert.Equal("cached service", (string)provider.GetService <object>());
}
public void Without_Removing_PreExisting_Service()
{
// Arrange
var services = new ServiceCollection();
services.AddScoped <string, string>(provider => "preconditioned");
var builder = new CachedOptionsBuilder();
builder.AddService(new FakeBuilder());
// Act
builder.Build(services);
// Assert
Assert.Equal(2, services.Count);
}
/// <summary>
/// Adds support for caching using Cached.
/// </summary>
/// <param name="services">The target service collection.</param>
/// <param name="options">Options for initializing Cached.</param>
public static void AddCached(this IServiceCollection services, Action <ICachedOptions> options)
{
if (services == null)
{
throw new ArgumentNullException(nameof(services));
}
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
var builder = new CachedOptionsBuilder();
options?.Invoke(builder);
builder.Build(services);
}