--- /dev/null
+/*
+ * ===============================LICENSE_START======================================
+ * dcae-analytics
+ * ================================================================================
+ * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============================LICENSE_END===========================================
+ */
+
+package org.openecomp.dcae.apod.analytics.model;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.google.common.base.Suppliers;
+import org.json.JSONException;
+import org.junit.Assert;
+import org.junit.BeforeClass;
+import org.openecomp.dcae.apod.analytics.model.util.json.AnalyticsModelObjectMapperSupplier;
+import org.openecomp.dcae.apod.analytics.test.BaseDCAEAnalyticsUnitTest;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.junit.Assert.assertThat;
+
+/**
+ * @author Rajiv Singla . Creation Date: 10/17/2016.
+ */
+public abstract class BaseAnalyticsModelUnitTest extends BaseDCAEAnalyticsUnitTest {
+
+
+ protected static ObjectMapper objectMapper;
+
+ @BeforeClass
+ public static void beforeClass() {
+ final AnalyticsModelObjectMapperSupplier analyticsModelObjectMapperSupplier =
+ new AnalyticsModelObjectMapperSupplier();
+ objectMapper = Suppliers.memoize(analyticsModelObjectMapperSupplier).get();
+ }
+
+
+ /**
+ * Deserialize given Json file location to given model class and returns it back without any validation check
+ *
+ * @param jsonFileLocation Classpath location of the json file
+ * @param modelClass Model Class type
+ * @param <T> Json Model Type
+ * @return Deserialized Model Object
+ */
+ public static <T> T deserializeJsonFileToModel(String jsonFileLocation, Class<T> modelClass) {
+ final InputStream jsonFileInputStream =
+ BaseDCAEAnalyticsUnitTest.class.getClassLoader().getResourceAsStream(jsonFileLocation);
+ Assert.assertNotNull("Json File Location must be valid", jsonFileInputStream);
+ try {
+ return objectMapper.readValue(jsonFileInputStream, modelClass);
+ } catch (IOException ex) {
+ LOG.error("Error while doing assert Json for fileLocation: {}, modelClass: {}, Exception {}",
+ jsonFileLocation, modelClass, ex);
+ throw new RuntimeException(ex);
+ } finally {
+ try {
+ jsonFileInputStream.close();
+ } catch (IOException e) {
+ LOG.error("Error while closing input stream at file location: {}", jsonFileLocation);
+ throw new RuntimeException(e);
+ }
+ }
+ }
+
+ /**
+ * Deserialize given Json file location to given model class and then validates deserialization by comparing it
+ * with given expected Object
+ *
+ * @param jsonFileLocation Classpath location of the json file
+ * @param modelClass Model Class type
+ * @param expectedJsonObject Expected Json Object
+ * @param <T> Json Model Type
+ * @return deserialized actual value if expected Json Object matches deserialized object
+ */
+ public static <T> T assertJsonDeserialization(String jsonFileLocation, Class<T> modelClass, T expectedJsonObject) {
+ final T actualValue = deserializeJsonFileToModel(jsonFileLocation, modelClass);
+ assertThat(actualValue, is(expectedJsonObject));
+ return actualValue;
+ }
+
+ public static String serializeModelToJson(Object model) throws JsonProcessingException {
+ return objectMapper.writeValueAsString(model);
+ }
+
+ /**
+ * Converts given model to json string and compare it with json present at given file location
+ *
+ * @param model Model which needs to be compared
+ * @param expectedJsonFileLocation Location of file containing expected json string
+ *
+ * @return If assertion passes returns the input model
+ */
+ public static <T> T assertJsonSerialization(T model, String expectedJsonFileLocation) {
+ try {
+ final String actualModelString = serializeModelToJson(model);
+ final String expectedModelString = fromStream(expectedJsonFileLocation);
+ assertJson(expectedModelString, actualModelString);
+ return model;
+ } catch (IOException | JSONException ex) {
+ LOG.error("Error while doing assert Json serialization Assertion: model: {}, " +
+ "expected Json File Location: {}, Exception {}", model, expectedJsonFileLocation, ex);
+ throw new RuntimeException(ex);
+ }
+
+ }
+
+
+ /**
+ * Checks both serialization and deserialization.
+ *
+ * First checks deserialization and then serialize the deserialized object back to json
+ * and check if matches the given json file location string
+ *
+ * @param jsonFileLocation Classpath location of the json file
+ * @param modelClass Class type
+ * @param <T> Json Model Type
+ *
+ * @return If assertion passes, returns deserialized object
+ */
+
+ public static <T> T assertJsonConversions(String jsonFileLocation, Class<T> modelClass) {
+ //first check deserialization
+ final T actualValue = deserializeJsonFileToModel(jsonFileLocation, modelClass);
+ //then check serialization
+ assertJsonSerialization(actualValue, jsonFileLocation);
+
+ return actualValue;
+ }
+
+
+}
Code Review / dcaegen2 / analytics / tca.git / blobdiff