.

wcfs/internal/zdata/δftail_test.go

@@ -305,7 +305,11 @@ func testΔFtail(t_ *testing.T, testq chan ΔFTestEntry) {
 			for blk, zblk := range test.δblkTab {
 				zprev, ok := blkTab[blk]
 				if ok {
-					delete(Zinblk[zprev], blk)
+					inblk := Zinblk[zprev]
+					inblk.Del(blk)
+					if len(inblk) == 0 {
+						delete(Zinblk, zprev)
+					}
 				} else {
 					zprev = ø
 				}