diff --git a/src/test/java/ch/psi/daq/test/queryrest/query/AbstractStreamEventReader.java b/src/test/java/ch/psi/daq/test/queryrest/query/AbstractStreamEventReader.java
index a78f7ec..db98e9a 100644
--- a/src/test/java/ch/psi/daq/test/queryrest/query/AbstractStreamEventReader.java
+++ b/src/test/java/ch/psi/daq/test/queryrest/query/AbstractStreamEventReader.java
@@ -28,8 +28,10 @@ import ch.psi.daq.domain.backend.Backend;
 import ch.psi.daq.domain.config.DomainConfig;
 import ch.psi.daq.domain.events.ChannelConfiguration;
 import ch.psi.daq.domain.events.ChannelEvent;
+import ch.psi.daq.domain.events.MetaPulseId;
 import ch.psi.daq.domain.events.impl.ChannelConfigurationImpl;
 import ch.psi.daq.domain.events.impl.ChannelEventImpl;
+import ch.psi.daq.domain.events.impl.MetaPulseIdImpl;
 import ch.psi.daq.domain.json.channels.info.ChannelInfo;
 import ch.psi.daq.domain.json.channels.info.ChannelInfoImpl;
 import ch.psi.daq.domain.query.event.EventQuery;
@@ -388,4 +390,16 @@ public abstract class AbstractStreamEventReader implements StreamEventReader<Cha
 
    @Override
    public void truncateCache() {}
+   
+   @Override
+   public CompletableFuture<MetaPulseId> getStartMetaPulseIdAsync(PulseIdRangeQuery query) {
+      return CompletableFuture.completedFuture(new MetaPulseIdImpl(query.getChannel(), query.getStartPulseId(),
+            TimeUtils.getTimeFromMillis(query.getStartPulseId() * 10, 0)));
+   }
+
+   @Override
+   public CompletableFuture<MetaPulseId> getEndMetaPulseIdAsync(PulseIdRangeQuery query) {
+      return CompletableFuture.completedFuture(new MetaPulseIdImpl(query.getChannel(), query.getEndPulseId(),
+            TimeUtils.getTimeFromMillis(query.getEndPulseId() * 10, 0)));
+   }
 }
diff --git a/src/test/java/ch/psi/daq/test/queryrest/query/DummyCassandraReader.java b/src/test/java/ch/psi/daq/test/queryrest/query/DummyCassandraReader.java
index b740e57..3649476 100644
--- a/src/test/java/ch/psi/daq/test/queryrest/query/DummyCassandraReader.java
+++ b/src/test/java/ch/psi/daq/test/queryrest/query/DummyCassandraReader.java
@@ -9,8 +9,12 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import ch.psi.daq.cassandra.reader.CassandraReader;
+import ch.psi.daq.common.time.TimeUtils;
 import ch.psi.daq.domain.backend.Backend;
 import ch.psi.daq.domain.events.ChannelConfiguration;
+import ch.psi.daq.domain.events.MetaPulseId;
+import ch.psi.daq.domain.events.impl.MetaPulseIdImpl;
+import ch.psi.daq.domain.query.range.PulseIdRangeQuery;
 import ch.psi.daq.domain.query.range.TimeRangeQuery;
 
 public class DummyCassandraReader extends AbstractStreamEventReader implements CassandraReader {
@@ -57,4 +61,16 @@ public class DummyCassandraReader extends AbstractStreamEventReader implements C
       // implement when needed
       throw new UnsupportedOperationException();
    }
+   
+   @Override
+   public CompletableFuture<MetaPulseId> getStartMetaPulseIdAsync(PulseIdRangeQuery query) {
+      return CompletableFuture.completedFuture(new MetaPulseIdImpl(query.getChannel(), query.getStartPulseId(),
+            TimeUtils.getTimeFromMillis(query.getStartPulseId() * 10, 0)));
+   }
+
+   @Override
+   public CompletableFuture<MetaPulseId> getEndMetaPulseIdAsync(PulseIdRangeQuery query) {
+      return CompletableFuture.completedFuture(new MetaPulseIdImpl(query.getChannel(), query.getEndPulseId(),
+            TimeUtils.getTimeFromMillis(query.getEndPulseId() * 10, 0)));
+   }
 }