public void Replace_ReplacesFirstServiceWithMatchingServiceType()
{
// Arrange
var collection = new ServiceCollection();
var descriptor1 = new ServiceDescriptor(typeof(IFakeService), typeof(FakeService), ServiceLifetime.Transient);
var descriptor2 = new ServiceDescriptor(typeof(IFakeService), typeof(FakeService), ServiceLifetime.Transient);
collection.Add(descriptor1);
collection.Add(descriptor2);
var descriptor3 = new ServiceDescriptor(typeof(IFakeService), typeof(FakeService), ServiceLifetime.Singleton);
// Act
collection.Replace(descriptor3);
// Assert
Assert.Equal(new[] { descriptor2, descriptor3 }, collection);
}
public void Replace_AddsServiceIfServiceTypeIsNotRegistered()
{
// Arrange
var collection = new ServiceCollection();
var descriptor1 = new ServiceDescriptor(typeof(IFakeService), typeof(FakeService), ServiceLifetime.Transient);
var descriptor2 = new ServiceDescriptor(typeof(IFakeOuterService), typeof(FakeOuterService), ServiceLifetime.Transient);
collection.Add(descriptor1);
// Act
collection.Replace(descriptor2);
// Assert
Assert.Equal(new[] { descriptor1, descriptor2 }, collection);
}