public void Memoize_with_default_dict_should_call_handler_once()
{
// Arrange
int value = 0;
var memoized1 = FlowUtils.Memoize(() => ++ value);
// Act & Assert
Assert.Equal(1, memoized1());
Assert.Equal(1, memoized1());
}
public void Cache_with_max_count_should_save_within_count()
{
// Arrange
int value = 0;
var memoized1 = FlowUtils.Memoize(
(a) => ++ value,
FlowUtils.CreateMaxCountCacheStrategy <int, int>(maxCount: 3, removeCount: 2)
);
// Act & assert
Assert.Equal(1, memoized1(1));
Assert.Equal(2, memoized1(2));
Assert.Equal(3, memoized1(3));
Assert.Equal(1, memoized1(1)); // cached here
Assert.Equal(4, memoized1(4)); // cache reset here
Assert.Equal(5, memoized1(1)); // not cached now
Assert.Equal(3, memoized1(3)); // but this one is cached
}
public void Cache_with_max_age_should_cache_within_period()
{
// Arrange
int value = 0;
var memoized1 = FlowUtils.Memoize(
() => ++ value,
FlowUtils.CreateMaxAgeCacheStrategy <int>(TimeSpan.FromSeconds(1))
);
// Act & assert
Assert.Equal(1, memoized1());
Assert.Equal(1, memoized1());
#if PORTABLE || NETSTANDARD1_6
Task.Delay(1300).Wait();
#else
Thread.Sleep(1300);
#endif
Assert.Equal(2, memoized1());
}
public void Cache_with_composite_key_should_cache()
{
// Arrange
int totalCalls = 0;
Func <int, string, int> func = (a, b) => ++ totalCalls;
var memoizedFunc = FlowUtils.Memoize(
func, FlowUtils.CreateMaxCountCacheStrategy <int, string, int>(100));
// Act
var val1 = memoizedFunc(10, "string");
var val2 = memoizedFunc(10, "string");
var val3 = memoizedFunc(10, "string2");
var val4 = memoizedFunc(11, "string");
var val5 = memoizedFunc(10, "string");
var val6 = memoizedFunc(11, "string");
// Assert
Assert.Equal(1, val1);
Assert.Equal(1, val2);
Assert.Equal(2, val3);
Assert.Equal(3, val4);
Assert.Equal(1, val5);
Assert.Equal(3, val6);
}