Implement persistence test for policies

The unit test MonitoringPolicySerializationTest tests
persistence for policies and shows how persistence works.

Issue-ID: POLICY-1195
Change-Id: I933eb538238f9ccd41ce69614e0c9afcac869c29
Signed-off-by: liamfallon <liam.fallon@est.tech>

1 files changed, 118 insertions, 0 deletions

diff --git a/models-provider/src/test/java/org/onap/policy/models/provider/impl/MonitoringPolicyPersistenceTest.java b/models-provider/src/test/java/org/onap/policy/models/provider/impl/MonitoringPolicyPersistenceTest.java
new file mode 100644
index 000000000..b26e762af
--- /dev/null
+++ b/models-provider/src/test/java/org/onap/policy/models/provider/impl/MonitoringPolicyPersistenceTest.java
@@ -0,0 +1,118 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Nordix 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.models.provider.impl;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+import com.google.gson.Gson;
+import com.google.gson.JsonSyntaxException;
+
+import java.io.IOException;
+import java.sql.Connection;
+import java.sql.DriverManager;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onap.policy.common.utils.resources.ResourceUtils;
+import org.onap.policy.models.base.PfConceptKey;
+import org.onap.policy.models.base.PfValidationResult;
+import org.onap.policy.models.dao.DaoParameters;
+import org.onap.policy.models.dao.PfDao;
+import org.onap.policy.models.dao.PfDaoFactory;
+import org.onap.policy.models.dao.impl.DefaultPfDao;
+import org.onap.policy.models.tosca.simple.concepts.ToscaPolicy;
+import org.onap.policy.models.tosca.simple.concepts.ToscaServiceTemplate;
+import org.onap.policy.models.tosca.simple.serialization.ToscaServiceTemplateMessageBodyHandler;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Test persistence of monitoring policies to and from the database.
+ *
+ * @author Liam Fallon (liam.fallon@est.tech)
+ */
+public class MonitoringPolicyPersistenceTest {
+    // Logger for this class
+    private static final Logger LOGGER = LoggerFactory.getLogger(MonitoringPolicyPersistenceTest.class);
+
+    private Gson gson;
+
+    private Connection connection;
+    private PfDao pfDao;
+
+    /**
+     * Set up the DAO towards the database.
+     *
+     * @throws Exception on database errors
+     */
+    @Before
+    public void setupDao() throws Exception {
+        // Use the JDBC UI "jdbc:h2:mem:testdb" to test towards the h2 database
+        // Use the JDBC UI "jdbc:mariadb://localhost:3306/policy" to test towards a locally installed mariadb instance
+        connection = DriverManager.getConnection("jdbc:h2:mem:testdb", "policy", "P01icY");
+
+        final DaoParameters daoParameters = new DaoParameters();
+        daoParameters.setPluginClass(DefaultPfDao.class.getCanonicalName());
+
+        // Use the persistence unit ToscaConceptTest to test towards the h2 database
+        // Use the persistence unit ToscaConceptMariaDBTest to test towards a locally installed mariadb instance
+        daoParameters.setPersistenceUnit("ToscaConceptTest");
+
+        pfDao = new PfDaoFactory().createPfDao(daoParameters);
+        pfDao.init(daoParameters);
+    }
+
+    /**
+     * Set up GSON.
+     */
+    @Before
+    public void setupGson() {
+        gson = new ToscaServiceTemplateMessageBodyHandler().getGson();
+    }
+
+    @After
+    public void teardown() throws Exception {
+        pfDao.close();
+        connection.close();
+    }
+
+    @Test
+    public void testJsonDeserialization() throws JsonSyntaxException, IOException {
+        ToscaServiceTemplate serviceTemplate =
+                gson.fromJson(ResourceUtils.getResourceAsString("policies/vCPE.policy.monitoring.input.tosca.json"),
+                        ToscaServiceTemplate.class);
+
+        assertNotNull(serviceTemplate);
+        LOGGER.info(serviceTemplate.validate(new PfValidationResult()).toString());
+        assertTrue(serviceTemplate.validate(new PfValidationResult()).isValid());
+
+        ToscaPolicy policyBeforeDb = serviceTemplate.getTopologyTemplate().getPolicies().get("onap.restart.tca");
+
+        pfDao.create(policyBeforeDb);
+
+        ToscaPolicy policyAfterDb = pfDao.get(ToscaPolicy.class, new PfConceptKey("onap.restart.tca:1.0.0"));
+
+        assertEquals(policyBeforeDb, policyAfterDb);
+    }
+}