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/*
* ============LICENSE_START=======================================================
* ONAP
* ================================================================================
* Copyright (C) 2019 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.onap.policy.common.gson.internal;
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.GsonBuilder;
import com.google.gson.JsonNull;
import com.google.gson.JsonObject;
import java.util.List;
import org.junit.Test;
import org.onap.policy.common.gson.JacksonExclusionStrategy;
import org.onap.policy.common.gson.internal.DataAdapterFactory.Data;
import org.onap.policy.common.gson.internal.MethodDeserializer;
public class MethodDeserializerTest {
private static final String PROP_NAME = "text";
private static final String METHOD_NAME = "setText";
private static final String INITIAL_VALUE = "initial value";
private static final String NEW_VALUE = "new value";
private static DataAdapterFactory dataAdapter = new DataAdapterFactory();
private static Gson gson = new GsonBuilder().registerTypeAdapterFactory(dataAdapter)
.setExclusionStrategies(new JacksonExclusionStrategy()).create();
private MethodDeserializer deser;
private String text;
private List<Data> listField;
@Test
public void testGetFromTree() throws Exception {
deser = new MethodDeserializer(gson, MethodDeserializerTest.class.getDeclaredMethod(METHOD_NAME, String.class));
// non-existent value - should not overwrite
text = INITIAL_VALUE;
JsonObject json = new JsonObject();
deser.getFromTree(json, this);
assertEquals(INITIAL_VALUE, text);
// null value - should not overwrite
text = INITIAL_VALUE;
json.add(PROP_NAME, JsonNull.INSTANCE);
deser.getFromTree(json, this);
assertEquals(INITIAL_VALUE, text);
// has a value - should store it
text = INITIAL_VALUE;
json.addProperty(PROP_NAME, NEW_VALUE);
deser.getFromTree(json, this);
assertEquals(NEW_VALUE, text);
/*
* check list field
*/
deser = new MethodDeserializer(gson, MethodDeserializerTest.class.getDeclaredMethod("setTheList", List.class));
json = new JsonObject();
json.add("theList", DataAdapterFactory.makeArray());
dataAdapter.reset();
listField = null;
deser.getFromTree(json, this);
assertTrue(dataAdapter.isDataRead());
assertNotNull(listField);
assertEquals(DataAdapterFactory.makeList().toString(), listField.toString());
}
protected void setText(String text) {
this.text = text;
}
protected void setTheList(List<Data> lst) {
listField = lst;
}
}
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