[ONOS-4621] Unit Tests for Snmp provider and protocol

Change-Id: If70c701478762201b3739d9bd017c9f7eec75db1
diff --git a/core/api/src/test/java/org/onosproject/net/device/DeviceProviderRegistryAdapter.java b/core/api/src/test/java/org/onosproject/net/device/DeviceProviderRegistryAdapter.java
new file mode 100644
index 0000000..e9cd8a2
--- /dev/null
+++ b/core/api/src/test/java/org/onosproject/net/device/DeviceProviderRegistryAdapter.java
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.net.device;
+
+import org.onosproject.net.provider.ProviderId;
+
+import java.util.Set;
+
+/**
+ * Testing adapter for the DeviceProviderRegistry API.
+ */
+public class DeviceProviderRegistryAdapter implements DeviceProviderRegistry {
+    @Override
+    public DeviceProviderService register(DeviceProvider provider) {
+        return null;
+    }
+
+    @Override
+    public void unregister(DeviceProvider provider) {
+
+    }
+
+    @Override
+    public Set<ProviderId> getProviders() {
+        return null;
+    }
+}
diff --git a/core/api/src/test/java/org/onosproject/net/device/DeviceProviderServiceAdapter.java b/core/api/src/test/java/org/onosproject/net/device/DeviceProviderServiceAdapter.java
new file mode 100644
index 0000000..5309e69
--- /dev/null
+++ b/core/api/src/test/java/org/onosproject/net/device/DeviceProviderServiceAdapter.java
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.net.device;
+
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.MastershipRole;
+
+import java.util.Collection;
+import java.util.List;
+
+/**
+ * Test Adapter for DeviceProviderService API.
+ */
+public class DeviceProviderServiceAdapter implements DeviceProviderService {
+    @Override
+    public void deviceConnected(DeviceId deviceId, DeviceDescription deviceDescription) {
+
+    }
+
+    @Override
+    public void deviceDisconnected(DeviceId deviceId) {
+
+    }
+
+    @Override
+    public void updatePorts(DeviceId deviceId, List<PortDescription> portDescriptions) {
+
+    }
+
+    @Override
+    public void portStatusChanged(DeviceId deviceId, PortDescription portDescription) {
+
+    }
+
+    @Override
+    public void receivedRoleReply(DeviceId deviceId, MastershipRole requested, MastershipRole response) {
+
+    }
+
+    @Override
+    public void updatePortStatistics(DeviceId deviceId, Collection<PortStatistics> portStatistics) {
+
+    }
+
+    @Override
+    public DeviceProvider provider() {
+        return null;
+    }
+}
diff --git a/core/api/src/test/java/org/onosproject/net/device/DeviceStoreAdapter.java b/core/api/src/test/java/org/onosproject/net/device/DeviceStoreAdapter.java
new file mode 100644
index 0000000..2a109f1
--- /dev/null
+++ b/core/api/src/test/java/org/onosproject/net/device/DeviceStoreAdapter.java
@@ -0,0 +1,125 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.net.device;
+
+import org.onosproject.net.Device;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.Port;
+import org.onosproject.net.PortNumber;
+import org.onosproject.net.provider.ProviderId;
+
+import java.util.Collection;
+import java.util.List;
+
+/**
+ * Test adapter for the DeviceStore API.
+ */
+public class DeviceStoreAdapter implements DeviceStore {
+    @Override
+    public int getDeviceCount() {
+        return 0;
+    }
+
+    @Override
+    public Iterable<Device> getDevices() {
+        return null;
+    }
+
+    @Override
+    public Iterable<Device> getAvailableDevices() {
+        return null;
+    }
+
+    @Override
+    public Device getDevice(DeviceId deviceId) {
+        return null;
+    }
+
+    @Override
+    public DeviceEvent createOrUpdateDevice(ProviderId providerId, DeviceId deviceId,
+                                            DeviceDescription deviceDescription) {
+        return null;
+    }
+
+    @Override
+    public DeviceEvent markOffline(DeviceId deviceId) {
+        return null;
+    }
+
+    @Override
+    public List<DeviceEvent> updatePorts(ProviderId providerId, DeviceId deviceId,
+                                         List<PortDescription> portDescriptions) {
+        return null;
+    }
+
+    @Override
+    public DeviceEvent updatePortStatus(ProviderId providerId, DeviceId deviceId,
+                                        PortDescription portDescription) {
+        return null;
+    }
+
+    @Override
+    public List<Port> getPorts(DeviceId deviceId) {
+        return null;
+    }
+
+    @Override
+    public DeviceEvent updatePortStatistics(ProviderId providerId, DeviceId deviceId,
+                                            Collection<PortStatistics> portStats) {
+        return null;
+    }
+
+    @Override
+    public List<PortStatistics> getPortStatistics(DeviceId deviceId) {
+        return null;
+    }
+
+    @Override
+    public List<PortStatistics> getPortDeltaStatistics(DeviceId deviceId) {
+        return null;
+    }
+
+    @Override
+    public Port getPort(DeviceId deviceId, PortNumber portNumber) {
+        return null;
+    }
+
+    @Override
+    public boolean isAvailable(DeviceId deviceId) {
+        return false;
+    }
+
+    @Override
+    public DeviceEvent removeDevice(DeviceId deviceId) {
+        return null;
+    }
+
+    @Override
+    public void setDelegate(DeviceStoreDelegate delegate) {
+
+    }
+
+    @Override
+    public void unsetDelegate(DeviceStoreDelegate delegate) {
+
+    }
+
+    @Override
+    public boolean hasDelegate() {
+        return false;
+    }
+}