Use SQL to gc

1 files changed, 6 insertions, 1 deletions

diff --git a/testutil/src/main/java/com/yahoo/test/ManualClock.java b/testutil/src/main/java/com/yahoo/test/ManualClock.java
index ba7d9698d72..296b4a2b360 100644
--- a/testutil/src/main/java/com/yahoo/test/ManualClock.java
+++ b/testutil/src/main/java/com/yahoo/test/ManualClock.java
@@ -18,7 +18,7 @@ import java.util.concurrent.atomic.AtomicReference;
  */
 public class ManualClock extends Clock {
 
-    private AtomicReference<Instant> currentTime = new AtomicReference<>(Instant.now());
+    private final AtomicReference<Instant> currentTime = new AtomicReference<>(Instant.now());
 
     @Inject
     public ManualClock() {}
@@ -35,6 +35,11 @@ public class ManualClock extends Clock {
         currentTime.updateAndGet(time -> time.plus(temporal));
     }
 
+    /** Move time backwards by the given amount */
+    public void retreat(TemporalAmount temporal) {
+        currentTime.updateAndGet(time -> time.minus(temporal));
+    }
+
     public void setInstant(Instant time) {
         currentTime.set(time);
     }