[ONOS-3284] Add nicira extension of NSH instructions to onos

Change-Id: I569ef85967a22098db3c9821a8731a4ca589eaf6
diff --git a/drivers/src/test/java/org/onosproject/driver/extensions/NiciraSetNshContextHeaderTest.java b/drivers/src/test/java/org/onosproject/driver/extensions/NiciraSetNshContextHeaderTest.java
new file mode 100644
index 0000000..45d6d94
--- /dev/null
+++ b/drivers/src/test/java/org/onosproject/driver/extensions/NiciraSetNshContextHeaderTest.java
@@ -0,0 +1,68 @@
+/*
+ * 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.driver.extensions;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+import static org.hamcrest.Matchers.notNullValue;
+
+import org.junit.Test;
+import org.onosproject.net.flow.instructions.ExtensionTreatmentType;
+
+import com.google.common.testing.EqualsTester;
+
+/**
+ * Unit tests for NiciraSetNshContextHeader class.
+ */
+public class NiciraSetNshContextHeaderTest {
+
+    final NiciraSetNshContextHeader nshCh1 = new NiciraSetNshContextHeader(10,
+                                                                           ExtensionTreatmentType.
+                                                                           ExtensionTreatmentTypes.
+                                                                           NICIRA_SET_NSH_CH1.type());
+    final NiciraSetNshContextHeader sameAsNshCh1 = new NiciraSetNshContextHeader(10,
+                                                                                 ExtensionTreatmentType.
+                                                                                 ExtensionTreatmentTypes.
+                                                                                 NICIRA_SET_NSH_CH1.type());
+    final NiciraSetNshContextHeader nshCh2 = new NiciraSetNshContextHeader(20,
+                                                                           ExtensionTreatmentType.
+                                                                           ExtensionTreatmentTypes.
+                                                                           NICIRA_SET_NSH_CH1.type());
+
+    /**
+     * Checks the operation of equals() methods.
+     */
+    @Test
+    public void testEquals() {
+        new EqualsTester().addEqualityGroup(nshCh1, sameAsNshCh1).addEqualityGroup(nshCh2).testEquals();
+    }
+
+    /**
+     * Checks the construction of a NiciraSetNshSi object.
+     */
+    @Test
+    public void testConstruction() {
+        final NiciraSetNshContextHeader niciraSetNshCh = new NiciraSetNshContextHeader(10,
+                                                                                       ExtensionTreatmentType.
+                                                                                       ExtensionTreatmentTypes.
+                                                                                       NICIRA_SET_NSH_CH1.type());
+        assertThat(niciraSetNshCh, is(notNullValue()));
+        assertThat(niciraSetNshCh.nshCh(), is(10));
+        assertThat(niciraSetNshCh.type(), is(ExtensionTreatmentType.
+                                             ExtensionTreatmentTypes.
+                                             NICIRA_SET_NSH_CH1.type()));
+    }
+}