diff options
Diffstat (limited to 'gson/src/test/java/org/onap/policy/common/gson/internal/MethodDeserializerTest.java')
-rw-r--r-- | gson/src/test/java/org/onap/policy/common/gson/internal/MethodDeserializerTest.java | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/gson/src/test/java/org/onap/policy/common/gson/internal/MethodDeserializerTest.java b/gson/src/test/java/org/onap/policy/common/gson/internal/MethodDeserializerTest.java new file mode 100644 index 00000000..338644ae --- /dev/null +++ b/gson/src/test/java/org/onap/policy/common/gson/internal/MethodDeserializerTest.java @@ -0,0 +1,100 @@ +/* + * ============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; + } +} |