fix: gc was being stupid allowing another thread to take the space it made before it could not anymore

vfs/gc/gc_test.go

@@ -5,13 +5,12 @@ import (
 	"errors"
 	"fmt"
 	"s1d3sw1ped/SteamCache2/vfs/memory"
-	"s1d3sw1ped/SteamCache2/vfs/vfserror"
 	"testing"
 )
 
 func TestGCOnFull(t *testing.T) {
 	m := memory.New(10)
-	gc := New(m, 2, LRUGC)
+	gc := New(m, LRUGC)
 
 	for i := 0; i < 5; i++ {
 		w, err := gc.Create(fmt.Sprintf("key%d", i), 2)
@@ -43,7 +42,7 @@ func TestGCOnFull(t *testing.T) {
 
 func TestNoGCNeeded(t *testing.T) {
 	m := memory.New(20)
-	gc := New(m, 2, LRUGC)
+	gc := New(m, LRUGC)
 
 	for i := 0; i < 5; i++ {
 		w, err := gc.Create(fmt.Sprintf("key%d", i), 2)
@@ -61,13 +60,13 @@ func TestNoGCNeeded(t *testing.T) {
 
 func TestGCInsufficientSpace(t *testing.T) {
 	m := memory.New(5)
-	gc := New(m, 1, LRUGC)
+	gc := New(m, LRUGC)
 
 	w, err := gc.Create("key0", 10)
 	if err == nil {
 		w.Close()
 		t.Error("Expected ErrDiskFull")
-	} else if !errors.Is(err, vfserror.ErrDiskFull) {
+	} else if !errors.Is(err, ErrInsufficientSpace) {
 		t.Errorf("Unexpected error: %v", err)
 	}
 }