diff --git a/core/api/src/test/java/org/onlab/onos/net/host/HostServiceAdapter.java b/core/api/src/test/java/org/onlab/onos/net/host/HostServiceAdapter.java
new file mode 100644
index 0000000..54a630e
--- /dev/null
+++ b/core/api/src/test/java/org/onlab/onos/net/host/HostServiceAdapter.java
@@ -0,0 +1,65 @@
+package org.onlab.onos.net.host;
+
+import org.onlab.onos.net.ConnectPoint;
+import org.onlab.onos.net.DeviceId;
+import org.onlab.onos.net.Host;
+import org.onlab.onos.net.HostId;
+import org.onlab.packet.IPAddress;
+import org.onlab.packet.MACAddress;
+import org.onlab.packet.VLANID;
+
+import java.util.Set;
+
+/**
+ * Test adapter for host service.
+ */
+public class HostServiceAdapter implements HostService {
+    @Override
+    public int getHostCount() {
+        return 0;
+    }
+
+    @Override
+    public Iterable<Host> getHosts() {
+        return null;
+    }
+
+    @Override
+    public Host getHost(HostId hostId) {
+        return null;
+    }
+
+    @Override
+    public Set<Host> getHostsByVlan(VLANID vlanId) {
+        return null;
+    }
+
+    @Override
+    public Set<Host> getHostsByMac(MACAddress mac) {
+        return null;
+    }
+
+    @Override
+    public Set<Host> getHostsByIp(IPAddress ip) {
+        return null;
+    }
+
+    @Override
+    public Set<Host> getConnectedHosts(ConnectPoint connectPoint) {
+        return null;
+    }
+
+    @Override
+    public Set<Host> getConnectedHosts(DeviceId deviceId) {
+        return null;
+    }
+
+    @Override
+    public void addListener(HostListener listener) {
+    }
+
+    @Override
+    public void removeListener(HostListener listener) {
+    }
+
+}