[ONOS-7492] Add unit test for OpenstackFloatingIp REST API

Change-Id: I5d750405b63ffef8049f3b23f2129dac5532c6d0
diff --git a/apps/openstacknetworking/src/test/java/org/onosproject/openstacknetworking/web/OpenstackFloatingIpWebResourceTest.java b/apps/openstacknetworking/src/test/java/org/onosproject/openstacknetworking/web/OpenstackFloatingIpWebResourceTest.java
new file mode 100644
index 0000000..edc562d
--- /dev/null
+++ b/apps/openstacknetworking/src/test/java/org/onosproject/openstacknetworking/web/OpenstackFloatingIpWebResourceTest.java
@@ -0,0 +1,231 @@
+/*
+ * 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.openstacknetworking.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.onosproject.openstacknetworking.api.OpenstackRouterAdminService;
+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.expectLastCall;
+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 floating IP REST API.
+ */
+public class OpenstackFloatingIpWebResourceTest extends ResourceTest {
+
+    final OpenstackRouterAdminService mockOpenstackRouterAdminService =
+            createMock(OpenstackRouterAdminService.class);
+    private static final String PATH = "floatingips";
+
+    /**
+     * Constructs an openstack floating IP test instance.
+     */
+    public OpenstackFloatingIpWebResourceTest() {
+        super(ResourceConfig.forApplicationClass(OpenstackNetworkingWebApplication.class));
+    }
+
+    /**
+     * Sets up the global values for all tests.
+     */
+    @Before
+    public void setUpTest() {
+        ServiceDirectory testDirectory =
+                new TestServiceDirectory()
+                        .add(OpenstackRouterAdminService.class,
+                                mockOpenstackRouterAdminService);
+        setServiceDirectory(testDirectory);
+
+    }
+
+    /**
+     * Tests the results of the REST API POST with creation operation.
+     */
+    @Test
+    public void testCreateFloatingIpWithCreationOperation() {
+        mockOpenstackRouterAdminService.createFloatingIp(anyObject());
+        replay(mockOpenstackRouterAdminService);
+
+        final WebTarget wt = target();
+        InputStream jsonStream = OpenstackFloatingIpWebResourceTest.class
+                .getResourceAsStream("openstack-floatingip.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(mockOpenstackRouterAdminService);
+    }
+
+    /**
+     * Tests the results of the REST API POST with incorrect input.
+     */
+    @Test
+    public void testCreateFloatingIpWithIncorrectInput() {
+        final WebTarget wt = target();
+        InputStream jsonStream = OpenstackFloatingIpWebResourceTest.class
+                .getResourceAsStream("dummy.json");
+
+        Response response = wt.path(PATH).request(MediaType.APPLICATION_JSON_TYPE)
+                .post(Entity.json(jsonStream));
+        final int status = response.getStatus();
+
+        assertThat(status, is(400));
+    }
+
+    /**
+     * Tests the results of the REST API POST with duplicated floating IP.
+     */
+    @Test
+    public void testCreateFloatingIpWithDuplicatedIp() {
+        mockOpenstackRouterAdminService.createFloatingIp(anyObject());
+        expectLastCall().andThrow(new IllegalArgumentException());
+        replay(mockOpenstackRouterAdminService);
+
+        final WebTarget wt = target();
+        InputStream jsonStream = OpenstackFloatingIpWebResourceTest.class
+                .getResourceAsStream("openstack-floatingip.json");
+
+        Response response = wt.path(PATH).request(MediaType.APPLICATION_JSON_TYPE)
+                .post(Entity.json(jsonStream));
+        final int status = response.getStatus();
+
+        assertThat(status, is(400));
+
+        verify(mockOpenstackRouterAdminService);
+    }
+
+    /**
+     * Tests the results of the REST API PUT with updating operation.
+     */
+    @Test
+    public void testUpdateFloatingIpWithUpdatingOperation() {
+        mockOpenstackRouterAdminService.updateFloatingIp(anyObject());
+        replay(mockOpenstackRouterAdminService);
+
+        final WebTarget wt = target();
+        InputStream jsonStream = OpenstackFloatingIpWebResourceTest.class
+                .getResourceAsStream("openstack-floatingip.json");
+
+        Response response = wt.path(PATH + "/2f245a7b-796b-4f26-9cf9-9e82d248fda7")
+                .request(MediaType.APPLICATION_JSON_TYPE)
+                .put(Entity.json(jsonStream));
+        final int status = response.getStatus();
+
+        assertThat(status, is(200));
+
+        verify(mockOpenstackRouterAdminService);
+    }
+
+    /**
+     * Tests the results of the REST API PUT with incorrect input.
+     */
+    @Test
+    public void testUpdateFloatingIpWithIncorrectInput() {
+        final WebTarget wt = target();
+        InputStream jsonStream = OpenstackFloatingIpWebResourceTest.class
+                .getResourceAsStream("dummy.json");
+
+        Response response = wt.path(PATH + "/2f245a7b-796b-4f26-9cf9-9e82d248fda7")
+                .request(MediaType.APPLICATION_JSON_TYPE)
+                .put(Entity.json(jsonStream));
+        final int status = response.getStatus();
+
+        assertThat(status, is(400));
+    }
+
+    /**
+     * Tests the results of the REST API PUT with non-existing ID.
+     */
+    @Test
+    public void testUpdateFloatingIpWithNonexistId() {
+        mockOpenstackRouterAdminService.updateFloatingIp(anyObject());
+        expectLastCall().andThrow(new IllegalArgumentException());
+        replay(mockOpenstackRouterAdminService);
+
+        final WebTarget wt = target();
+        InputStream jsonStream = OpenstackFloatingIpWebResourceTest.class
+                .getResourceAsStream("openstack-floatingip.json");
+
+        Response response = wt.path(PATH + "/2f245a7b-796b-4f26-9cf9-9e82d248fda7")
+                .request(MediaType.APPLICATION_JSON_TYPE)
+                .put(Entity.json(jsonStream));
+        final int status = response.getStatus();
+
+        assertThat(status, is(400));
+
+        verify(mockOpenstackRouterAdminService);
+    }
+
+    /**
+     * Tests the results of the REST API DELETE with deletion operation.
+     */
+    @Test
+    public void testDeleteFloatingIpDeletionOperation() {
+        mockOpenstackRouterAdminService.removeFloatingIp(anyString());
+        replay(mockOpenstackRouterAdminService);
+
+        final WebTarget wt = target();
+
+        Response response = wt.path(PATH + "/2f245a7b-796b-4f26-9cf9-9e82d248fda7")
+                .request(MediaType.APPLICATION_JSON_TYPE)
+                .delete();
+        final int status = response.getStatus();
+
+        assertThat(status, is(204));
+
+        verify(mockOpenstackRouterAdminService);
+    }
+
+    /**
+     * Tests the results of the REST API DELETE with non-existing ID.
+     */
+    @Test
+    public void testDeleteFloatingIpWithNonexistId() {
+        mockOpenstackRouterAdminService.removeFloatingIp(anyString());
+        expectLastCall().andThrow(new IllegalArgumentException());
+        replay(mockOpenstackRouterAdminService);
+
+        final WebTarget wt = target();
+
+        Response response = wt.path(PATH + "/non-exist-id")
+                .request(MediaType.APPLICATION_JSON_TYPE)
+                .delete();
+        final int status = response.getStatus();
+
+        assertThat(status, is(400));
+
+        verify(mockOpenstackRouterAdminService);
+    }
+}