Add JSON to CLI commands

- Drivers
- Groups

Change-Id: Ib47dc75d9db839329e6cf8fc4439150848f604f5
diff --git a/core/common/src/test/java/org/onosproject/codec/impl/GroupCodecTest.java b/core/common/src/test/java/org/onosproject/codec/impl/GroupCodecTest.java
new file mode 100644
index 0000000..409f8eb
--- /dev/null
+++ b/core/common/src/test/java/org/onosproject/codec/impl/GroupCodecTest.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2015 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.codec.impl;
+
+import org.junit.Test;
+import org.onosproject.core.DefaultGroupId;
+import org.onosproject.net.NetTestTools;
+import org.onosproject.net.flow.DefaultTrafficTreatment;
+import org.onosproject.net.group.DefaultGroup;
+import org.onosproject.net.group.DefaultGroupBucket;
+import org.onosproject.net.group.GroupBucket;
+import org.onosproject.net.group.GroupBuckets;
+import org.onosproject.net.group.GroupDescription;
+
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import com.google.common.collect.ImmutableList;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.onosproject.codec.impl.GroupJsonMatcher.matchesGroup;
+
+/**
+ * Group codec unit tests.
+ */
+
+public class GroupCodecTest {
+
+    @Test
+    public void codecTest() {
+        GroupBucket bucket1 = DefaultGroupBucket
+                .createSelectGroupBucket(DefaultTrafficTreatment.emptyTreatment());
+        GroupBucket bucket2 = DefaultGroupBucket
+                .createIndirectGroupBucket(DefaultTrafficTreatment.emptyTreatment());
+        GroupBuckets buckets = new GroupBuckets(ImmutableList.of(bucket1, bucket2));
+
+
+        DefaultGroup group = new DefaultGroup(
+                new DefaultGroupId(1),
+                NetTestTools.did("d1"),
+                GroupDescription.Type.INDIRECT,
+                buckets);
+
+        MockCodecContext context = new MockCodecContext();
+        GroupCodec codec = new GroupCodec();
+        ObjectNode groupJson = codec.encode(group, context);
+
+        assertThat(groupJson, matchesGroup(group));
+    }
+}