public void GetSet_when_l1_misses_then_l2_called()
{
// Arrange
var l1 = false;
var l2 = false;
var level1 = new InspectableCache((key) => { l1 = true; }, cacheMiss: true);
var level2 = new InspectableCache((key) => { l2 = true; });
var sut = new CompositeCache(level1, level2);
// Act
var result = sut.GetSet("a", () => "", TimeSpan.Zero);
// Assert
Assert.True(l1);
Assert.True(l2);
}