测试数据模拟生成

一、javafaker 模拟数据

1、添加依赖

<!-- 用于测试的d javaFaker-->
<dependency>
    <groupId>com.github.javafaker</groupId>
    <artifactId>javafaker</artifactId>
    <version>0.17.2</version>
</dependency>
<dependency>
    <groupId>com.github.houbb</groupId>
    <artifactId>data-factory-core</artifactId>
    <version>0.0.8</version>
</dependency>

2、Bean类

@Data
public class Student {
    
    
    private String name;
    private double score;

}

3、模拟数据

public class MockDataTest {
    
    

    private static Faker FAKER = new Faker(Locale.CHINA);

    @Test
    public void testTaskInfo(){
    
    
        System.out.println("TaskInfoDTO");
        TaskInfoDTO mockeBean = DataUtil.build(TaskInfoDTO.class);
        System.out.println(JSONUtil.toJsonPrettyStr(mockeBean));
    }
}

public class ModelFactory {
    
    
    private static Faker FAKER = new Faker(Locale.CHINA);


    public static List<Student> listStudentList(final int number) {
    
    
        return Stream.generate(() -> new Student(
            FAKER.name().fullName(),
            FAKER.number().randomDouble(2, 1, number)))
            .limit(number).collect(Collectors.toList());
    }

}

二、data-factory组件

2、DataUtil工具类生成随机模拟数据

@Data
public class User {
    
    
    private String name;
    private int age;
    private Date birthday;
    private List<String> stringList;
    //S/F 的枚举
    private StatusEnum statusEnum;
    private Map<String, String> map;
    
}

//通过DataUtil.build方法生成随机属性
//User user = DataUtil.build(User.class);
//User{name='wZ8CJZtK', age=-564106861, birthday=Wed Feb 27 22:14:34 CST 2019, stringList=[Du4iJkQj], statusEnum=S, map={yA5yDqM=Kdzi}}

3、使用@DataFactory注解

• min & max 数字最大和最小
• minLen & maxLen 字符串长度的最大和最小
• ignore 忽略
• precision 浮点型数据精度
• data 指定生成策略
• regex 指定正则表达式

@Data
public class UserAnnotationNumber {
    
    

    @DataFactory(min = 10, max = 20)
    private Byte aByte;

    @DataFactory(min = 10, max = 20)
    private Short aShort;

    @DataFactory(min = 10, max = 20)
    private Integer integer;

    @DataFactory(min = 10, max = 20)
    private Long aLong;

    @DataFactory(min = 10, max = 20, precision = 3)
    private Double aDouble;

    @DataFactory(min = 10, max = 20, precision = 3)
    private Float aFloat;

    @DataFactory(min = 10, max = 20, precision = 3)
    private BigDecimal bigDecimal;

    @DataFactory(min = 10, max = 20)
    private BigInteger bigInteger;

}
public class FakeDataDemo{
    
    
    
    public void demo(){
    
    
        //调用工具类生成模拟数据
        DataUtil.build(UserAnnotationNumber.class)
        //生成示例
        UserAnnotationNumber{
    
    aByte=10, aShort=17, integer=19, aLong=11, 
                             aDouble=19.888, aFloat=10.067, bigDecimal=18.035, bigInteger=13}
    }

}