Imported tests from Google
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@ -194,6 +194,17 @@ public final class RuntimeTypeAdapterFactory<T> implements TypeAdapterFactory {
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return this;
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return this;
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}
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}
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/**
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* Registers {@code type} identified by {@code label}. Labels are case sensitive.
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*
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* @throws IllegalArgumentException if either {@code type} or {@code label} have already been
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* registered on this type adapter.
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*/
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public RuntimeTypeAdapterFactory<T> registerSubtype(Class<? extends T> type) {
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registerSubtype(type, type.getSimpleName());
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return this;
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}
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private void initMaps(
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private void initMaps(
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Gson gson,
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Gson gson,
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Map<String, TypeAdapter<?>> labelToDelegate,
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Map<String, TypeAdapter<?>> labelToDelegate,
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@ -0,0 +1,224 @@
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package ch.usi.inf.sa4.sanmarinoes.smarthut.config;
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import static org.junit.jupiter.api.Assertions.*;
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import com.google.gson.Gson;
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import com.google.gson.GsonBuilder;
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import com.google.gson.JsonParseException;
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import com.google.gson.TypeAdapterFactory;
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import org.junit.jupiter.api.Test;
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/**
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* Copyright (C) 2011 Google Inc.
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*
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* <p>Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of the License at
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*
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* <p>http://www.apache.org/licenses/LICENSE-2.0
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*
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* <p>Unless required by applicable law or agreed to in writing, software distributed under the
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* License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
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* express or implied. See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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public final class RuntimeTypeAdapterFactoryTests {
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@Test
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public void testRuntimeTypeAdapter() {
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RuntimeTypeAdapterFactory<BillingInstrument> rta =
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RuntimeTypeAdapterFactory.of(BillingInstrument.class)
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.registerSubtype(CreditCard.class);
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Gson gson = new GsonBuilder().registerTypeAdapterFactory(rta).create();
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CreditCard original = new CreditCard("Jesse", 234);
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assertEquals(
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"{\"type\":\"CreditCard\",\"cvv\":234,\"ownerName\":\"Jesse\"}",
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gson.toJson(original, BillingInstrument.class));
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BillingInstrument deserialized =
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gson.fromJson(
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"{type:'CreditCard',cvv:234,ownerName:'Jesse'}", BillingInstrument.class);
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assertEquals("Jesse", deserialized.ownerName);
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assertTrue(deserialized instanceof CreditCard);
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}
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@Test
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public void testRuntimeTypeIsBaseType() {
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TypeAdapterFactory rta =
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RuntimeTypeAdapterFactory.of(BillingInstrument.class, "type", false)
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.registerSubtype(BillingInstrument.class);
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Gson gson = new GsonBuilder().registerTypeAdapterFactory(rta).create();
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BillingInstrument original = new BillingInstrument("Jesse");
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assertEquals(
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"{\"type\":\"BillingInstrument\",\"ownerName\":\"Jesse\"}",
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gson.toJson(original, BillingInstrument.class));
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BillingInstrument deserialized =
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gson.fromJson(
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"{type:'BillingInstrument',ownerName:'Jesse'}", BillingInstrument.class);
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assertEquals("Jesse", deserialized.ownerName);
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}
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@Test
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public void testNullBaseType() {
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try {
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RuntimeTypeAdapterFactory.of(null);
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fail();
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} catch (NullPointerException expected) {
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}
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}
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@Test
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public void testNullTypeFieldName() {
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try {
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RuntimeTypeAdapterFactory.of(BillingInstrument.class, null);
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fail();
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} catch (NullPointerException expected) {
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}
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}
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@Test
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public void testNullSubtype() {
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RuntimeTypeAdapterFactory<BillingInstrument> rta =
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RuntimeTypeAdapterFactory.of(BillingInstrument.class);
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try {
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rta.registerSubtype(null);
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fail();
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} catch (NullPointerException expected) {
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}
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}
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@Test
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public void testNullLabel() {
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RuntimeTypeAdapterFactory<BillingInstrument> rta =
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RuntimeTypeAdapterFactory.of(BillingInstrument.class);
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try {
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rta.registerSubtype(CreditCard.class, null);
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fail();
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} catch (NullPointerException expected) {
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}
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}
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@Test
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public void testDuplicateSubtype() {
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RuntimeTypeAdapterFactory<BillingInstrument> rta =
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RuntimeTypeAdapterFactory.of(BillingInstrument.class);
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rta.registerSubtype(CreditCard.class, "CC");
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try {
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rta.registerSubtype(CreditCard.class, "Visa");
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fail();
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} catch (IllegalArgumentException expected) {
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}
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}
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@Test
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public void testDuplicateLabel() {
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RuntimeTypeAdapterFactory<BillingInstrument> rta =
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RuntimeTypeAdapterFactory.of(BillingInstrument.class);
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rta.registerSubtype(CreditCard.class, "CC");
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try {
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rta.registerSubtype(BankTransfer.class, "CC");
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fail();
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} catch (IllegalArgumentException expected) {
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}
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}
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@Test
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public void testDeserializeMissingTypeField() {
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TypeAdapterFactory billingAdapter =
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RuntimeTypeAdapterFactory.of(BillingInstrument.class)
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.registerSubtype(CreditCard.class);
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Gson gson = new GsonBuilder().registerTypeAdapterFactory(billingAdapter).create();
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try {
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gson.fromJson("{ownerName:'Jesse'}", BillingInstrument.class);
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fail();
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} catch (JsonParseException expected) {
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}
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}
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@Test
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public void testDeserializeMissingSubtype() {
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TypeAdapterFactory billingAdapter =
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RuntimeTypeAdapterFactory.of(BillingInstrument.class)
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.registerSubtype(BankTransfer.class);
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Gson gson = new GsonBuilder().registerTypeAdapterFactory(billingAdapter).create();
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try {
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gson.fromJson("{type:'CreditCard',ownerName:'Jesse'}", BillingInstrument.class);
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fail();
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} catch (JsonParseException expected) {
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}
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}
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@Test
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public void testSerializeMissingSubtype() {
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TypeAdapterFactory billingAdapter =
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RuntimeTypeAdapterFactory.of(BillingInstrument.class)
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.registerSubtype(BankTransfer.class);
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Gson gson = new GsonBuilder().registerTypeAdapterFactory(billingAdapter).create();
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try {
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gson.toJson(new CreditCard("Jesse", 456), BillingInstrument.class);
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fail();
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} catch (JsonParseException expected) {
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}
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}
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@Test
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public void testSerializeCollidingTypeFieldName() {
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TypeAdapterFactory billingAdapter =
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RuntimeTypeAdapterFactory.of(BillingInstrument.class, "cvv")
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.registerSubtype(CreditCard.class);
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Gson gson = new GsonBuilder().registerTypeAdapterFactory(billingAdapter).create();
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try {
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gson.toJson(new CreditCard("Jesse", 456), BillingInstrument.class);
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fail();
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} catch (JsonParseException expected) {
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}
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}
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@Test
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public void testSerializeWrappedNullValue() {
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TypeAdapterFactory billingAdapter =
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RuntimeTypeAdapterFactory.of(BillingInstrument.class)
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.registerSubtype(CreditCard.class)
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.registerSubtype(BankTransfer.class);
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Gson gson = new GsonBuilder().registerTypeAdapterFactory(billingAdapter).create();
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String serialized =
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gson.toJson(new BillingInstrumentWrapper(null), BillingInstrumentWrapper.class);
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BillingInstrumentWrapper deserialized =
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gson.fromJson(serialized, BillingInstrumentWrapper.class);
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assertNull(deserialized.instrument);
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}
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static class BillingInstrumentWrapper {
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BillingInstrument instrument;
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BillingInstrumentWrapper(BillingInstrument instrument) {
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this.instrument = instrument;
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}
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}
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static class BillingInstrument {
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private final String ownerName;
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BillingInstrument(String ownerName) {
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this.ownerName = ownerName;
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}
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}
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static class CreditCard extends BillingInstrument {
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int cvv;
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CreditCard(String ownerName, int cvv) {
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super(ownerName);
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this.cvv = cvv;
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}
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}
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static class BankTransfer extends BillingInstrument {
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int bankAccount;
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BankTransfer(String ownerName, int bankAccount) {
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super(ownerName);
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this.bankAccount = bankAccount;
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}
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}
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}
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