public void Test020()
{
using var sut = new TestServiceProvider();
var expected = new DummyService();
sut.AddSingleton(expected);
var actual = sut.GetService <DummyService>();
actual.ShouldBe(expected);
}
public void Test013()
{
var descriptor = new ServiceDescriptor(typeof(AnotherDummyService), new AnotherDummyService());
using var sut = new TestServiceProvider();
sut.AddSingleton(new DummyService());
sut.GetService <DummyService>();
// Try adding
Should.Throw <InvalidOperationException>(() => sut.Add(descriptor));
Should.Throw <InvalidOperationException>(() => sut.Insert(0, descriptor));
Should.Throw <InvalidOperationException>(() => sut[0] = descriptor);
// Try removing
Should.Throw <InvalidOperationException>(() => sut.Remove(descriptor));
Should.Throw <InvalidOperationException>(() => sut.RemoveAt(0));
Should.Throw <InvalidOperationException>(() => sut.Clear());
// Verify state
sut.IsProviderInitialized.ShouldBeTrue();
sut.IsReadOnly.ShouldBeTrue();
}