英文:
Instancio - Generate past date as string format YYYYMMDD
问题
我试图使用Instancio来生成测试数据。Student类有一个名为birthdate的成员，类型为String，用于以YYYYMMDD的格式存储日期。
我该如何使用Instancio库（测试数据生成器）生成一个格式为yyyyMMdd的日期作为字符串？
这是我的起点：
Student student = Instancio.of(Student.class)
.generate(field(Student::getBirthdate), gen -> gen.temporal().localDate().past())
.create();
谢谢
英文:
I'm trying to use Instancio to generate data for testing. The Student class has a birthdate member as a String type to store the date in the format YYYYMMDD.
How can I use Instancio library (test data generator) to generate a date in the format yyyyMMdd as string?
Here was my starting poing:
Student student = Instancio.of(Student.class)
.generate(field(Student::getBirthdate), gen -> gen.temporal().localDate().past())
.create();
Thx
答案1
得分: 1
如评论中建议的，最好将字段声明为LocalDate而不是String。如果您不能更改它，可以使用as()方法将日期映射到字符串：
Student student = Instancio.of(Student.class)
.generate(field(Student::getBirthdate), gen -> gen.temporal().localDate().past().as(dob -> dob.format(DateTimeFormatter.BASIC_ISO_DATE)))
.create();
英文:
As suggested in the comments, it's a good practice to declare the field as aLocalDate instead of a String. If you cannot change that, you can map the date to a string using the as() method:
Student student = Instancio.of(Student.class)
.generate(field(Student::getBirthdate), gen -> gen.temporal().localDate().past().as(dob -> dob.format(DateTimeFormatter.BASIC_ISO_DATE)))
.create();
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