public void Must_execute_delegate()
{
var systemUnderTest = new CachedDelegate<string, int>();
systemUnderTest.Invoke("Key1", () => 1);
Assert.That(systemUnderTest.Invoke("Key2", () => 2), Is.EqualTo(2));
}
public void Must_return_cached_result()
{
var systemUnderTest = new CachedDelegate<string, int>();
systemUnderTest.Invoke("Key", () => 1);
Assert.That(systemUnderTest.Invoke("Key", () => 2), Is.EqualTo(1));
}