DATACMNS-877 - SpringDataTestCase.java

/*
 * Copyright 2016 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 com.example;

import static org.hamcrest.MatcherAssert.*;
import static org.hamcrest.Matchers.*;

import java.time.LocalDate;
import java.util.Arrays;
import java.util.Date;

import org.bson.types.ObjectId;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.test.SpringApplicationConfiguration;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.convert.converter.Converter;
import org.springframework.data.convert.WritingConverter;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.convert.CustomConversions;
import org.springframework.data.mongodb.core.mapping.Document;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import lombok.Data;

/**
 * @author Mark Paluch
 */
@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(classes = SpringDataTestCase.Config.class)
public class SpringDataTestCase {

    @Autowired
    MongoTemplate mongoTemplate;

    @Test
    public void test() throws Exception {

        Model model = new Model();
        model.setLocalDate(LocalDate.of(2010, 1, 1));

        mongoTemplate.save(model);

        Model loaded = mongoTemplate.findById(model.getId(), Model.class);
        assertThat(loaded.getLocalDate(), is(equalTo(LocalDate.of(1970, 03, 06))));
    }

    @Document
    @Data
    public static class Model {

        ObjectId id;
        LocalDate localDate;
    }

    @SpringBootApplication
    @Configuration
    static class Config {
        @Bean
        CustomConversions customConversions() {
            return new CustomConversions(Arrays.asList(LocalDateToDummyDateConverter.INSTANCE));
        }
    }

    @WritingConverter
    public static enum LocalDateToDummyDateConverter implements Converter<LocalDate, Date> {
        INSTANCE;

        private LocalDateToDummyDateConverter() {
        }

        public Date convert(LocalDate source) {
            return source == null ? null : new Date(5555555555L);
        }
    }
}

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>

	<groupId>com.example</groupId>
	<artifactId>spring-data-playground</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>jar</packaging>

	<name>spring-data-playground</name>
	<description>Demo project for Spring Boot</description>

	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>1.3.5.RELEASE</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>

	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<java.version>1.8</java.version>
		<spring-data-releasetrain.version>Gosling-SR1</spring-data-releasetrain.version>
	</properties>

	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-data-mongodb</artifactId>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>

		<dependency>
			<groupId>org.projectlombok</groupId>
			<artifactId>lombok</artifactId>
			<version>1.16.8</version>
		</dependency>
	</dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>
</project>