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Diffstat (limited to 'gson/src/test/java/org/onap/policy/common/gson/internal/FieldSerializerTest.java')
-rw-r--r-- | gson/src/test/java/org/onap/policy/common/gson/internal/FieldSerializerTest.java | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/gson/src/test/java/org/onap/policy/common/gson/internal/FieldSerializerTest.java b/gson/src/test/java/org/onap/policy/common/gson/internal/FieldSerializerTest.java new file mode 100644 index 00000000..18167fc0 --- /dev/null +++ b/gson/src/test/java/org/onap/policy/common/gson/internal/FieldSerializerTest.java @@ -0,0 +1,96 @@ +/* + * ============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.assertj.core.api.Assertions.assertThatThrownBy; +import static org.junit.Assert.assertEquals; +import static org.junit.Assert.assertTrue; + +import com.google.gson.Gson; +import com.google.gson.GsonBuilder; +import com.google.gson.JsonElement; +import com.google.gson.JsonObject; +import com.google.gson.JsonParseException; +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.FieldSerializer; + +public class FieldSerializerTest { + private static final String TEXT_FIELD_NAME = "text"; + private static final String LIST_FIELD_NAME = "listField"; + + private static DataAdapterFactory dataAdapter = new DataAdapterFactory(); + + private static Gson gson = new GsonBuilder().registerTypeAdapterFactory(dataAdapter) + .setExclusionStrategies(new JacksonExclusionStrategy()).create(); + + private FieldSerializer ser; + + protected String text; + + private List<Data> listField; + + @Test + public void testAddToTree() throws Exception { + ser = new FieldSerializer(gson, FieldSerializerTest.class.getDeclaredField(TEXT_FIELD_NAME)); + + // serialize null value first + text = null; + + JsonObject json = new JsonObject(); + ser.addToTree(this, json); + assertTrue(json.get(TEXT_FIELD_NAME).isJsonNull()); + + // serialize an actual value + text = "hello"; + ser.addToTree(this, json); + assertEquals("hello", json.get(TEXT_FIELD_NAME).getAsString()); + + /* + * check list field + */ + listField = DataAdapterFactory.makeList(); + + ser = new FieldSerializer(gson, FieldSerializerTest.class.getDeclaredField(LIST_FIELD_NAME)); + + dataAdapter.reset(); + JsonElement tree = ser.toJsonTree(listField); + assertTrue(dataAdapter.isDataWritten()); + assertEquals(DataAdapterFactory.ENCODED_LIST, tree.toString()); + } + + @Test + public void testAddToTree_GetEx() throws Exception { + ser = new FieldSerializer(gson, FieldSerializerTest.class.getDeclaredField(TEXT_FIELD_NAME)) { + @Override + protected Object getFromObject(Object source) throws IllegalAccessException { + throw new IllegalAccessException("expected exception"); + } + }; + + text = "world"; + + assertThatThrownBy(() -> ser.addToTree(this, new JsonObject())).isInstanceOf(JsonParseException.class) + .hasMessage(FieldSerializer.GET_ERR + FieldSerializerTest.class.getName() + ".text"); + } +} |