Mercurial > hg > release > thermostat-0.6
view storage/core/src/test/java/com/redhat/thermostat/storage/internal/DbServiceImplTest.java @ 999:121a6919baf5
Fail gracefully when no StorageProviders are available
Reviewed-by: jerboaa, vanaltj
Review-thread: http://icedtea.classpath.org/pipermail/thermostat/2013-February/005823.html
author | Omair Majid <omajid@redhat.com> |
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date | Mon, 25 Feb 2013 20:06:11 -0500 |
parents | df6e0f7f8540 |
children |
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/* * Copyright 2012, 2013 Red Hat, Inc. * * This file is part of Thermostat. * * Thermostat is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published * by the Free Software Foundation; either version 2, or (at your * option) any later version. * * Thermostat is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Thermostat; see the file COPYING. If not see * <http://www.gnu.org/licenses/>. * * Linking this code with other modules is making a combined work * based on this code. Thus, the terms and conditions of the GNU * General Public License cover the whole combination. * * As a special exception, the copyright holders of this code give * you permission to link this code with independent modules to * produce an executable, regardless of the license terms of these * independent modules, and to copy and distribute the resulting * executable under terms of your choice, provided that you also * meet, for each linked independent module, the terms and conditions * of the license of that module. An independent module is a module * which is not derived from or based on this code. If you modify * this code, you may extend this exception to your version of the * library, but you are not obligated to do so. If you do not wish * to do so, delete this exception statement from your version. */ package com.redhat.thermostat.storage.internal; import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertNotNull; import static org.junit.Assert.assertNull; import static org.junit.Assert.assertTrue; import static org.junit.Assert.fail; import static org.mockito.Mockito.mock; import static org.mockito.Mockito.verify; import static org.mockito.Mockito.when; import org.junit.Before; import org.junit.Test; import org.osgi.framework.ServiceReference; import org.osgi.framework.ServiceRegistration; import com.redhat.thermostat.storage.core.Connection; import com.redhat.thermostat.storage.core.Connection.ConnectionListener; import com.redhat.thermostat.storage.core.DbService; import com.redhat.thermostat.storage.core.Storage; import com.redhat.thermostat.storage.core.StorageException; import com.redhat.thermostat.storage.core.StorageProvider; import com.redhat.thermostat.testutils.StubBundleContext; public class DbServiceImplTest { private Connection connection; private StorageProvider storageProvider; private Storage storage; private StubBundleContext context; @Before public void setup() { context = new StubBundleContext(); connection = mock(Connection.class); storage = mock(Storage.class); when(storage.getConnection()).thenReturn(connection); storageProvider = mock(StorageProvider.class); when(storageProvider.canHandleProtocol()).thenReturn(true); when(storageProvider.createStorage()).thenReturn(storage); context.registerService(StorageProvider.class, storageProvider, null); } @Test public void testNoStorageProvider() { context = new StubBundleContext(); try { new DbServiceImpl(context, "ignore", "ignore", "http://ignored.example.com"); fail("exception expected"); } catch (StorageException se) { assertEquals("No storage provider available", se.getMessage()); } } @Test public void testNoStorageProviderCanHandleStorageUrl() { when(storageProvider.canHandleProtocol()).thenReturn(false); try { new DbServiceImpl(context, "ignore", "ignore", "http://ignored.example.com"); fail("exception expected"); } catch (StorageException se) { assertEquals("No storage found for URL http://ignored.example.com", se.getMessage()); } } @Test public void testConnect() { DbService dbService = new DbServiceImpl(context, "ignore", "ignore", "http://ignored.example.com"); dbService.connect(); verify(connection).connect(); } @Test public void testConnectRegistersDbService() { DbService dbService = new DbServiceImpl(context, "ignore", "ignore", "http://ignored.example.com"); dbService.connect(); verify(connection).connect(); @SuppressWarnings("rawtypes") ServiceReference dbServiceRef = context.getServiceReference(DbService.class); // connect registers DbService assertNotNull(dbServiceRef); // make sure we really get the same instance assertTrue(dbService.equals(context.getService(dbServiceRef))); } @Test public void testConnectRegistersStorage() { DbService dbService = new DbServiceImpl(context, "ignore", "ignore", "http://ignored.example.com"); dbService.connect(); verify(connection).connect(); @SuppressWarnings("rawtypes") ServiceReference storageRef = context.getServiceReference(Storage.class); // connect registers DbService assertNotNull(storageRef); // make sure we really get the same instance assertTrue(storage.equals(context.getService(storageRef))); } @SuppressWarnings("rawtypes") @Test public void testConnectEnforcesPreCond() { DbService dbService = new DbServiceImpl(context, "ignore", "ignore", "http://ignored.example.com"); ServiceRegistration reg = context.registerService(DbService.class, dbService, null); try { dbService.connect(); fail("connect should check if db service is already registered"); } catch (IllegalStateException e) { // pass reg.unregister(); } reg = context.registerService(Storage.class, storage, null); try { dbService.connect(); fail("connect should check if storage service is already registered"); } catch (IllegalStateException e) { // pass reg.unregister(); } } @SuppressWarnings("rawtypes") @Test public void testDisConnectEnforcesPreCond() { DbService dbService = new DbServiceImpl(context, "ignore", "ignore", "http://ignored.example.com"); ServiceRegistration reg = context.registerService(DbService.class, dbService, null); try { // Storage == null dbService.disconnect(); fail("disconnect should check if storage service is already registered"); } catch (IllegalStateException e) { // pass reg.unregister(); } reg = context.registerService(Storage.class, storage, null); try { // DbService == null dbService.disconnect(); fail("disconnect should check if db service is already registered"); } catch (IllegalStateException e) { // pass reg.unregister(); } } @Test public void testDisconnect() { DbService dbService = new DbServiceImpl(context, "ignore", "ignore", "http://ignored.example.com"); dbService.connect(); assertNotNull(context.getServiceReference(DbService.class)); dbService.disconnect(); verify(connection).disconnect(); } @Test public void testDisconnectUnregistersDbService() { DbService dbService = new DbServiceImpl(context, "ignore", "ignore", "http://ignored.example.com"); dbService.connect(); assertNotNull(context.getServiceReference(DbService.class)); dbService.disconnect(); verify(connection).disconnect(); // disconnect unregisters DbService assertNull(context.getServiceReference(DbService.class)); } @Test public void testDisconnectUnregistersStorage() { DbService dbService = new DbServiceImpl(context, "ignore", "ignore", "http://ignored.example.com"); dbService.connect(); assertNotNull(context.getServiceReference(Storage.class)); dbService.disconnect(); verify(connection).disconnect(); // disconnect unregisters Storage assertNull(context.getServiceReference(Storage.class)); } @Test public void canGetStorageUrl() { String connectionURL = "http://test.example.com:8082"; DbService dbService = new DbServiceImpl(context, "ignore", "ignore", connectionURL); assertEquals(connectionURL, dbService.getConnectionUrl()); } @Test public void testAddListener() { ConnectionListener listener = mock(ConnectionListener.class); DbService dbService = new DbServiceImpl(context, "ignore", "ignore", "http://ignored.example.com"); dbService.addConnectionListener(listener); verify(connection).addListener(listener); } @Test public void testRemoveListener() { // Remove called regardless of listener actually being added ConnectionListener listener = mock(ConnectionListener.class); DbService dbService = new DbServiceImpl(context, "ignore", "ignore", "http://ignored.example.com"); dbService.removeConnectionListener(listener); verify(connection).removeListener(listener); } }