diff options
Diffstat (limited to 'gson/src/test')
3 files changed, 419 insertions, 0 deletions
diff --git a/gson/src/test/java/org/onap/policy/common/gson/JacksonFieldAdapterFactoryTest.java b/gson/src/test/java/org/onap/policy/common/gson/JacksonFieldAdapterFactoryTest.java new file mode 100644 index 00000000..9d4b4388 --- /dev/null +++ b/gson/src/test/java/org/onap/policy/common/gson/JacksonFieldAdapterFactoryTest.java @@ -0,0 +1,214 @@ +/* + * ============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; + +import static org.junit.Assert.assertEquals; +import static org.junit.Assert.assertFalse; +import static org.junit.Assert.assertNotNull; +import static org.junit.Assert.assertNull; + +import com.google.gson.Gson; +import com.google.gson.GsonBuilder; +import com.google.gson.JsonElement; +import com.google.gson.reflect.TypeToken; +import java.util.ArrayList; +import java.util.List; +import org.junit.Test; +import org.onap.policy.common.gson.JacksonExclusionStrategy; +import org.onap.policy.common.gson.JacksonFieldAdapterFactory; +import org.onap.policy.common.gson.annotation.GsonJsonIgnore; +import org.onap.policy.common.gson.annotation.GsonJsonProperty; + +public class JacksonFieldAdapterFactoryTest { + + private static JacksonFieldAdapterFactory factory = new JacksonFieldAdapterFactory(); + + private static Gson gson = new GsonBuilder().setExclusionStrategies(new JacksonExclusionStrategy()) + .registerTypeAdapterFactory(factory).create(); + + @Test + public void testCreate() { + // unhandled types + assertNull(factory.create(gson, TypeToken.get(JsonElement.class))); + assertNull(factory.create(gson, TypeToken.get(NothingToSerialize.class))); + + assertNotNull(factory.create(gson, TypeToken.get(Data.class))); + assertNotNull(factory.create(gson, TypeToken.get(Derived.class))); + + Data data = new Data(); + + // deserialize using fields that aren't in the Data object + Data data2 = gson.fromJson("{\"abc\":100}", Data.class); + assertEquals(data.toString(), data2.toString()); + + // now work with valid fields + data.id = 10; + data.text = "hello"; + + String result = gson.toJson(data); + data2 = gson.fromJson(result, Data.class); + assertEquals(data.toString(), data2.toString()); + + // should also work with derived types + Derived der = new Derived(); + der.setId(20); + der.text = "world"; + der.unserialized = "abc"; + + result = gson.toJson(der); + + // should not contain the unserialized field + assertFalse(result.contains("abc")); + + Derived der2 = gson.fromJson(result, Derived.class); + der.unserialized = null; + assertEquals(der.toString(), der2.toString()); + } + + @Test + public void testCreate_Lists() { + DataList lst = new DataList(); + lst.theList = new ArrayList<>(); + lst.theList.add(new Data(200, "text 20")); + lst.theList.add(new Data(210, "text 21")); + + String result = gson.toJson(lst); + assertEquals("{'theList':[{'my-id':200,'text':'text 20'},{'my-id':210,'text':'text 21'}]}".replace('\'', '"'), + result); + + DataList lst2 = gson.fromJson(result, DataList.class); + assertEquals(stripIdent(lst.toString()), stripIdent(lst2.toString())); + assertEquals(Data.class, lst2.theList.get(0).getClass()); + } + + @Test + public void testCreate_OnlyOutProps() { + InFieldIgnored data = new InFieldIgnored(); + data.value = "out only"; + + // field should be serialized + String result = gson.toJson(data); + assertEquals("{'value':'out only'}".replace('\'', '"'), result); + + // field should NOT be deserialized + data = gson.fromJson(result, InFieldIgnored.class); + assertNull(data.value); + } + + @Test + public void testCreate_OnlyInProps() { + OutFieldIgnored data = new OutFieldIgnored(); + data.value = "in only"; + + // field should NOT be serialized + String result = gson.toJson(data); + assertEquals("{}", result); + + // field should NOT be deserialized + data = gson.fromJson("{'value':'in only'}".replace('\'', '"'), OutFieldIgnored.class); + assertEquals("in only", data.value); + } + + /** + * Object identifiers may change with each execution, so this method is used to strip + * the identifier from the text string so that the strings will still match across + * different runs. + * + * @param text text from which to strip the identifier + * @return the text, without the identifier + */ + private String stripIdent(String text) { + return text.replaceFirst("@\\w+", "@"); + } + + private static class Data { + @GsonJsonProperty("my-id") + private int id; + + public String text; + + public Data() { + super(); + } + + public Data(int id, String text) { + this.id = id; + this.text = text; + } + + public void setId(int id) { + this.id = id; + } + + @Override + public String toString() { + return "Data [id=" + id + ", text=" + text + "]"; + } + } + + private static class Derived extends Data { + // not serialized + private String unserialized; + + @Override + public String toString() { + return "Derived [unserialized=" + unserialized + ", toString()=" + super.toString() + "]"; + } + } + + private static class DataList { + @GsonJsonProperty + private List<Data> theList; + } + + protected static class NothingToSerialize { + // not serialized + protected String unserialized; + } + + /** + * This has a field that should show up in the "output" list, but not in the "input" + * list, because the method will override it. + */ + private static class InFieldIgnored { + @GsonJsonProperty("value") + private String value; + + @GsonJsonIgnore + public void setValue(String value) { + this.value = value; + } + } + + /** + * This has a field that should show up in the "input" list, but not in the "output" + * list, because the method will override it. + */ + private static class OutFieldIgnored { + @GsonJsonProperty("value") + private String value; + + @GsonJsonIgnore + public String getValue() { + return value; + } + } +} diff --git a/gson/src/test/java/org/onap/policy/common/gson/internal/FieldDeserializerTest.java b/gson/src/test/java/org/onap/policy/common/gson/internal/FieldDeserializerTest.java new file mode 100644 index 00000000..62bab231 --- /dev/null +++ b/gson/src/test/java/org/onap/policy/common/gson/internal/FieldDeserializerTest.java @@ -0,0 +1,109 @@ +/* + * ============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.JsonNull; +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.FieldDeserializer; + +public class FieldDeserializerTest { + private static final String TEXT_FIELD_NAME = "text"; + private static final String LIST_FIELD_NAME = "listField"; + 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 FieldDeserializer deser; + + private String text; + + private List<Data> listField; + + @Test + public void testGetFromTree() throws Exception { + deser = new FieldDeserializer(gson, FieldDeserializerTest.class.getDeclaredField(TEXT_FIELD_NAME)); + + JsonObject json = new JsonObject(); + + // no value in tree - text remains unchanged + text = INITIAL_VALUE; + deser.getFromTree(json, this); + assertEquals(text, INITIAL_VALUE); + + // null value in tree - text remains unchanged + json.add(TEXT_FIELD_NAME, JsonNull.INSTANCE); + deser.getFromTree(json, this); + assertEquals(text, INITIAL_VALUE); + + // now assign a value - text should be changed now + json.addProperty(TEXT_FIELD_NAME, NEW_VALUE); + + deser.getFromTree(json, this); + assertEquals(text, NEW_VALUE); + + /* + * check list field + */ + deser = new FieldDeserializer(gson, FieldDeserializerTest.class.getDeclaredField(LIST_FIELD_NAME)); + + json.add(LIST_FIELD_NAME, DataAdapterFactory.makeArray()); + + dataAdapter.reset(); + listField = null; + deser.getFromTree(json, this); + + assertTrue(dataAdapter.isDataRead()); + assertEquals(DataAdapterFactory.makeList().toString(), listField.toString()); + } + + @Test + public void testGetFromTree_SetEx() throws Exception { + deser = new FieldDeserializer(gson, FieldDeserializerTest.class.getDeclaredField(TEXT_FIELD_NAME)) { + @Override + public Object fromJsonTree(JsonElement tree) { + // return an int, which won't fit in a String - cause an exception + return 10; + } + }; + + JsonObject json = new JsonObject(); + json.addProperty(TEXT_FIELD_NAME, NEW_VALUE); + + assertThatThrownBy(() -> deser.getFromTree(json, this)).isInstanceOf(JsonParseException.class) + .hasMessage(FieldDeserializer.SET_ERR + FieldDeserializerTest.class.getName() + ".text"); + } +} 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"); + } +} |