Support classes for testing with services that require

[utils] / test / enterprise / src / test / java / org / wamblee / support / persistence / TransactionProxyFactoryTestBase.java

diff --git a/test/enterprise/src/test/java/org/wamblee/support/persistence/TransactionProxyFactoryTestBase.java b/test/enterprise/src/test/java/org/wamblee/support/persistence/TransactionProxyFactoryTestBase.java
new file mode 100644 (file)
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+/*
+ * Copyright 2005-2010 the original author or authors.
+ * 
+ * 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.wamblee.support.persistence;
+
+import javax.persistence.EntityManager;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.wamblee.support.persistence.JpaBuilder.JpaUnitOfWork;
+
+import static junit.framework.TestCase.*;
+import static org.mockito.Mockito.*;
+
+public class TransactionProxyFactoryTestBase {
+
+    public static interface Service {
+        int execute(int aValue) throws Exception;
+    }
+
+    private JpaTester jpaTester;
+
+    @Before
+    public void setUp() throws Exception {
+        jpaTester = new JpaTester(new MyPersistenceUnit());
+        jpaTester.start();
+    }
+
+    @After
+    public void tearDown() throws Exception {
+        jpaTester.stop();
+    }
+
+    @Test
+    public void testServiceIsInvoked() throws Exception {
+        TransactionProxyFactory<Service> factory = new TransactionProxyFactory<Service>(
+            jpaTester.getJpaBuilder(), Service.class);
+        Service service = mock(Service.class);
+        when(service.execute(10)).thenReturn(200);
+        Service proxy = factory.getProxy(service);
+        int res = proxy.execute(10);
+        assertEquals(200, res);
+        verify(service).execute(10);
+    }
+
+    @Test
+    public void testServiceThrowsException() throws Exception {
+        TransactionProxyFactory<Service> factory = new TransactionProxyFactory<Service>(
+            jpaTester.getJpaBuilder(), Service.class);
+        Service service = mock(Service.class);
+        when(service.execute(10)).thenThrow(new RuntimeException("xyz"));
+        Service proxy = factory.getProxy(service);
+        try {
+            int res = proxy.execute(10);
+            fail();
+        } catch (RuntimeException e) {
+            assertEquals("xyz", e.getMessage());
+        }
+    }
+
+    @Test
+    public void testEntityManagerIsPassed() throws Exception {
+        
+       
+        final TransactionProxyFactory<Service> factory = new TransactionProxyFactory<Service>(
+            jpaTester.getJpaBuilder(), Service.class);
+        Service service = new Service() { 
+            private EntityManager em = factory.getTransactionScopedEntityManager();
+            
+            @Override
+            public int execute(int aValue) throws Exception {
+                assertNotNull(em);
+                assertTrue(em.isOpen());
+                return 0;
+            }
+        };
+        
+        final Service proxy = factory.getProxy(service);
+        jpaTester.getJpaBuilder().execute(new JpaUnitOfWork<Void>() {
+            @Override
+            public Void execute(EntityManager aEm) throws Exception {
+                assert(aEm != null); 
+                proxy.execute(10);
+                return null; 
+            }
+        });
+    }
+
+}