refactor: moved the GC stuff around and corrected all tests

steamcache/steamcache.go

@@ -80,21 +80,21 @@ func New(address string, memorySize string, memoryMultiplier int, diskSize strin
 	}
 
 	c := cache.New(
-		cachehandler,
+		gc.PromotionDecider,
 	)
 
 	var m *memory.MemoryFS
 	var mgc *gc.GCFS
 	if memorysize > 0 {
 		m = memory.New(memorysize)
-		mgc = gc.New(m, memoryMultiplier, lruGC)
+		mgc = gc.New(m, memoryMultiplier, gc.LRUGC)
 	}
 
 	var d *disk.DiskFS
 	var dgc *gc.GCFS
 	if disksize > 0 {
 		d = disk.New(diskPath, disksize)
-		dgc = gc.New(d, diskMultiplier, lruGC)
+		dgc = gc.New(d, diskMultiplier, gc.LRUGC)
 	}
 
 	// configure the cache to match the specified mode (memory only, disk only, or memory and disk) based on the provided sizes
@@ -154,7 +154,7 @@ func New(address string, memorySize string, memoryMultiplier int, diskSize strin
 
 	if d != nil {
 		if d.Size() > d.Capacity() {
-			lruGC(d, uint(d.Size()-d.Capacity()))
+			gc.LRUGC(d, uint(d.Size()-d.Capacity()))
 		}
 	}