/*
* Copyright 2012-2017 the original author or authors.
*
* 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.
*/
package org.springframework.boot.test.json;
import java.util.List;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import org.junit.Test;
import org.springframework.core.ResolvableType;
import static org.assertj.core.api.Assertions.assertThat;
/**
* Tests for {@link GsonTester}.
*
* @author Phillip Webb
*/
public class GsonTesterTests extends AbstractJsonMarshalTesterTests {
@Test
public void initFieldsWhenTestIsNullShouldThrowException() {
this.thrown.expect(IllegalArgumentException.class);
this.thrown.expectMessage("TestInstance must not be null");
GsonTester.initFields(null, new GsonBuilder().create());
}
@Test
public void initFieldsWhenMarshallerIsNullShouldThrowException() {
this.thrown.expect(IllegalArgumentException.class);
this.thrown.expectMessage("Marshaller must not be null");
GsonTester.initFields(new InitFieldsTestClass(), (Gson) null);
}
@Test
public void initFieldsShouldSetNullFields() {
InitFieldsTestClass test = new InitFieldsTestClass();
assertThat(test.test).isNull();
assertThat(test.base).isNull();
GsonTester.initFields(test, new GsonBuilder().create());
assertThat(test.test).isNotNull();
assertThat(test.base).isNotNull();
assertThat(test.test.getType().resolve()).isEqualTo(List.class);
assertThat(test.test.getType().resolveGeneric()).isEqualTo(ExampleObject.class);
}
@Override
protected AbstractJsonMarshalTester<Object> createTester(Class<?> resourceLoadClass,
ResolvableType type) {
return new GsonTester<>(resourceLoadClass, type, new GsonBuilder().create());
}
static abstract class InitFieldsBaseClass {
public GsonTester<ExampleObject> base;
public GsonTester<ExampleObject> baseSet = new GsonTester<>(
InitFieldsBaseClass.class, ResolvableType.forClass(ExampleObject.class),
new GsonBuilder().create());
}
static class InitFieldsTestClass extends InitFieldsBaseClass {
public GsonTester<List<ExampleObject>> test;
public GsonTester<ExampleObject> testSet = new GsonTester<>(
InitFieldsBaseClass.class, ResolvableType.forClass(ExampleObject.class),
new GsonBuilder().create());
}
}