public void GetInstance_NullTypeBuilder_CreatesInstanceWithDefaultConstructor()
{
// Arrange
var singleton = new WeakSingleton <object>();
object obj = null !;
// Act & Assert
Assert.DoesNotThrow(() => obj = singleton.Instance);
Assert.NotNull(obj);
}
public void GetInstance_ExplicitTypeBuilder_CreatesInstanceWithTypeBuilder()
{
// Arrange
var singleton = new WeakSingleton <string>(() => new string("Hello"));
string str = null !;
// Act & Assert
Assert.DoesNotThrow(() => str = singleton.Instance);
Assert.NotNull(str);
Assert.AreEqual(str, "Hello");
}
public void GetInstanceMultipleTimes_GcCollectBetween_CreatesDifferentInstances()
{
// Arrange
var singleton = new WeakSingleton <TestClass>();
var obj = singleton.Instance;
obj.Value = "Some string";
// Set strong reference to null and allow GC to collect unreferenced object
obj = null;
GC.Collect(GC.MaxGeneration, GCCollectionMode.Forced);
GC.WaitForPendingFinalizers();
obj = singleton.Instance;
// Act & Assert
Assert.NotNull(obj);
Assert.AreEqual(obj.Value, "Default");
}
