Add unit tests for DiscreteResourceCodec implementations

Change-Id: Ie93b5d36ac7552bcc4d3c0c1808094a7be305cf1

+/*
+ * Copyright 2016-present 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.store.resource.impl;
+
+import org.junit.Test;
+import org.onlab.packet.MplsLabel;
+
+import static org.hamcrest.Matchers.is;
+import static org.junit.Assert.*;
+
+public class MplsLabelCodecTest {
+    private final MplsLabelCodec sut = new MplsLabelCodec();
+
+    @Test
+    public void testEncode() {
+        assertThat(sut.encode(MplsLabel.mplsLabel(100)), is(100));
+    }
+
+    @Test
+    public void testDecode() {
+        assertThat(sut.decode(100), is(MplsLabel.mplsLabel(100)));
+    }
+}

+/*
+ * Copyright 2016-present 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.store.resource.impl;
+
+import org.junit.Test;
+import org.onosproject.net.PortNumber;
+
+import static org.hamcrest.Matchers.is;
+import static org.junit.Assert.*;
+
+public class PortNumberCodecTest {
+    private final PortNumberCodec sut = new PortNumberCodec();
+
+    @Test
+    public void testEncode() {
+        assertThat(sut.encode(PortNumber.portNumber(100)), is(100));
+    }
+
+    @Test
+    public void testDecode() {
+        assertThat(sut.decode(100), is(PortNumber.portNumber(100)));
+    }
+}

+/*
+ * Copyright 2016-present 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.store.resource.impl;
+
+import org.junit.Test;
+import org.onlab.packet.VlanId;
+
+import static org.hamcrest.Matchers.is;
+import static org.junit.Assert.*;
+
+public class VlanIdCodecTest {
+    private final VlanIdCodec sut = new VlanIdCodec();
+
+    @Test
+    public void testEncode() {
+        assertThat(sut.encode(VlanId.vlanId((short) 100)), is(100));
+    }
+
+    @Test
+    public void testDecode() {
+        assertThat(sut.decode(100), is(VlanId.vlanId((short) 100)));
+    }
+}