69 lines
2.5 KiB
Java
69 lines
2.5 KiB
Java
/*
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* Copyright (C) 2022 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* 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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package com.google.gson.internal;
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import static com.google.common.truth.Truth.assertThat;
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import static org.junit.Assert.fail;
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import com.google.gson.reflect.TypeToken;
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import java.util.Collections;
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import org.junit.Test;
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public class ConstructorConstructorTest {
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private ConstructorConstructor constructorConstructor = new ConstructorConstructor(
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Collections.emptyMap(), true,
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Collections.emptyList()
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);
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private abstract static class AbstractClass {
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@SuppressWarnings("unused")
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public AbstractClass() { }
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}
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private interface Interface { }
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/**
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* Verify that ConstructorConstructor does not try to invoke no-args constructor
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* of abstract class.
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*/
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@Test
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public void testGet_AbstractClassNoArgConstructor() {
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ObjectConstructor<AbstractClass> constructor = constructorConstructor.get(TypeToken.get(AbstractClass.class));
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try {
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constructor.construct();
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fail("Expected exception");
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} catch (RuntimeException exception) {
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assertThat(exception).hasMessageThat().isEqualTo("Abstract classes can't be instantiated!"
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+ " Adjust the R8 configuration or register an InstanceCreator or a TypeAdapter for this type."
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+ " Class name: com.google.gson.internal.ConstructorConstructorTest$AbstractClass"
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+ "\nSee https://github.com/google/gson/blob/main/Troubleshooting.md#r8-abstract-class");
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}
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}
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@Test
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public void testGet_Interface() {
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ObjectConstructor<Interface> constructor = constructorConstructor.get(TypeToken.get(Interface.class));
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try {
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constructor.construct();
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fail("Expected exception");
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} catch (RuntimeException exception) {
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assertThat(exception).hasMessageThat().isEqualTo("Interfaces can't be instantiated!"
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+ " Register an InstanceCreator or a TypeAdapter for this type."
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+ " Interface name: com.google.gson.internal.ConstructorConstructorTest$Interface");
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}
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}
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}
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