Add unit test of openstack node REST API

Change-Id: I114dcec0558b450cc0fd5683cca91ee07ee8e733
diff --git a/apps/openstacknode/app/src/test/java/org/onosproject/openstacknode/web/OpenstackNodeWebResourceTest.java b/apps/openstacknode/app/src/test/java/org/onosproject/openstacknode/web/OpenstackNodeWebResourceTest.java
new file mode 100644
index 0000000..ed8cd9a
--- /dev/null
+++ b/apps/openstacknode/app/src/test/java/org/onosproject/openstacknode/web/OpenstackNodeWebResourceTest.java
@@ -0,0 +1,183 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+ *
+ * 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.openstacknode.web;
+
+import org.glassfish.jersey.server.ResourceConfig;
+import org.junit.Before;
+import org.junit.Test;
+import org.onlab.osgi.ServiceDirectory;
+import org.onlab.osgi.TestServiceDirectory;
+import org.onlab.packet.IpAddress;
+import org.onosproject.codec.CodecService;
+import org.onosproject.codec.impl.CodecManager;
+import org.onosproject.net.DeviceId;
+import org.onosproject.openstacknode.api.NodeState;
+import org.onosproject.openstacknode.api.OpenstackNode;
+import org.onosproject.openstacknode.api.OpenstackNodeAdminService;
+import org.onosproject.openstacknode.api.OpenstackNodeService;
+import org.onosproject.openstacknode.codec.OpenstackNodeCodec;
+import org.onosproject.openstacknode.impl.DefaultOpenstackNode;
+import org.onosproject.rest.resources.ResourceTest;
+
+import javax.ws.rs.client.Entity;
+import javax.ws.rs.client.WebTarget;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+import java.io.InputStream;
+
+import static org.easymock.EasyMock.anyObject;
+import static org.easymock.EasyMock.anyString;
+import static org.easymock.EasyMock.createMock;
+import static org.easymock.EasyMock.expect;
+import static org.easymock.EasyMock.replay;
+import static org.easymock.EasyMock.verify;
+import static org.hamcrest.Matchers.is;
+import static org.junit.Assert.assertThat;
+
+/**
+ * Unit test for Openstack node REST API.
+ */
+public class OpenstackNodeWebResourceTest extends ResourceTest {
+
+    final OpenstackNodeService mockOpenstackNodeService =
+            createMock(OpenstackNodeService.class);
+    final OpenstackNodeAdminService mockOpenstackNodeAdminService =
+            createMock(OpenstackNodeAdminService.class);
+    private static final String PATH = "configure";
+
+    /**
+     * Constructs an openstack node resource test instance.
+     */
+    public OpenstackNodeWebResourceTest() {
+        super(ResourceConfig.forApplicationClass(OpenstackNodeWebApplication.class));
+    }
+
+    private OpenstackNode openstackNode;
+
+    /**
+     * Sets up the global values for all the tests.
+     */
+    @Before
+    public void setUpTest() {
+        final CodecManager codecService = new CodecManager();
+        codecService.activate();
+        codecService.registerCodec(OpenstackNode.class, new OpenstackNodeCodec());
+        ServiceDirectory testDirectory =
+                new TestServiceDirectory()
+                        .add(OpenstackNodeService.class, mockOpenstackNodeService)
+                        .add(OpenstackNodeAdminService.class, mockOpenstackNodeAdminService)
+                        .add(CodecService.class, codecService);
+        setServiceDirectory(testDirectory);
+
+        openstackNode = DefaultOpenstackNode.builder()
+                            .hostname("compute-node")
+                            .type(OpenstackNode.NodeType.COMPUTE)
+                            .dataIp(IpAddress.valueOf("10.134.34.222"))
+                            .managementIp(IpAddress.valueOf("10.134.231.30"))
+                            .intgBridge(DeviceId.deviceId("of:00000000000000a1"))
+                            .uplinkPort("eth2")
+                            .state(NodeState.INIT)
+                            .build();
+    }
+
+    /**
+     * Tests the results of the REST API POST with creating new nodes operation.
+     */
+    @Test
+    public void testCreateNodesWithCreateOperation() {
+        expect(mockOpenstackNodeService.node(anyString())).andReturn(null).once();
+        replay(mockOpenstackNodeService);
+
+        mockOpenstackNodeAdminService.createNode(anyObject());
+        replay(mockOpenstackNodeAdminService);
+
+        final WebTarget wt = target();
+        InputStream jsonStream = OpenstackNodeWebResourceTest.class
+                .getResourceAsStream("openstack-node-gateway-config.json");
+        Response response = wt.path(PATH).request(MediaType.APPLICATION_JSON_TYPE)
+                .post(Entity.json(jsonStream));
+        final int status = response.getStatus();
+
+        assertThat(status, is(201));
+
+        verify(mockOpenstackNodeService);
+        verify(mockOpenstackNodeAdminService);
+    }
+
+    /**
+     * Tests the results of the REST API POST without creating new nodes operation.
+     */
+    @Test
+    public void testCreateNodesWithoutCreateOperation() {
+        expect(mockOpenstackNodeService.node(anyString())).andReturn(openstackNode).once();
+        replay(mockOpenstackNodeService);
+
+        final WebTarget wt = target();
+        InputStream jsonStream = OpenstackNodeWebResourceTest.class
+                .getResourceAsStream("openstack-node-gateway-config.json");
+        Response response = wt.path(PATH).request(MediaType.APPLICATION_JSON_TYPE)
+                .post(Entity.json(jsonStream));
+        final int status = response.getStatus();
+
+        assertThat(status, is(201));
+
+        verify(mockOpenstackNodeService);
+    }
+
+    /**
+     * Tests the results of the REST API PUT with modifying the nodes.
+     */
+    @Test
+    public void testUpdateNodesWithoutModifyOperation() {
+        expect(mockOpenstackNodeService.node(anyString())).andReturn(openstackNode).once();
+        replay(mockOpenstackNodeService);
+
+        mockOpenstackNodeAdminService.updateNode(anyObject());
+        replay(mockOpenstackNodeAdminService);
+
+        final WebTarget wt = target();
+        InputStream jsonStream = OpenstackNodeWebResourceTest.class
+                .getResourceAsStream("openstack-node-gateway-config.json");
+        Response response = wt.path(PATH).request(MediaType.APPLICATION_JSON_TYPE)
+                .put(Entity.json(jsonStream));
+        final int status = response.getStatus();
+
+        assertThat(status, is(200));
+
+        verify(mockOpenstackNodeService);
+        verify(mockOpenstackNodeAdminService);
+    }
+
+    /**
+     * Tests the results of the REST API PUT without modifying the nodes.
+     */
+    @Test
+    public void testUpdateNodesWithModifyOperation() {
+        expect(mockOpenstackNodeService.node(anyString())).andReturn(null).once();
+        replay(mockOpenstackNodeService);
+
+        final WebTarget wt = target();
+        InputStream jsonStream = OpenstackNodeWebResourceTest.class
+                .getResourceAsStream("openstack-node-gateway-config.json");
+        Response response = wt.path(PATH).request(MediaType.APPLICATION_JSON_TYPE)
+                .put(Entity.json(jsonStream));
+        final int status = response.getStatus();
+
+        assertThat(status, is(304));
+
+        verify(mockOpenstackNodeService);
+    }
+}