在单元测试期间创建自定义@TestScoped Guice范围 [英] Creating a custom @TestScoped Guice scope for the duration of a unit test

问题描述

我想确定对象的范围，以便它们在单元测试期间以单例形式存在.该模式将遵循在Google Guice中已经实现的@RequestScoped和@SessionScoped，范围将围绕junit测试的@Before和@After:

I would like to scope objects so that they exist as singletons for the duration of a unit test. The pattern would follow the @RequestScoped and @SessionScoped already implemented in Google Guice, by would scope around the @Before and the @After of a junit test:

public class MyUnitTest {
    @TestScoped static class MyTestScopedClass { }

    @Before public void enterTestScope() {
        // something here creates the TestScope
    }

    @After public void exitTestScope() {
        // destroy the TestScope
    }

    @Test public void MyTest() {
        // MyTest instantiates object using injection, some are @Singletons
        // and will remain for other tests, but those that are @TestScoped
        // will be created once for this test and will be automatically 
        // destroyed at the end of this test
    }
} 

使用Google Guice可以吗?

Is this possible with Google Guice ?

推荐答案

如果您使用GuiceBerry(基本上是用于测试的Guice/jUnit)，则可以使用@TestScoped

if you use GuiceBerry (basically Guice for tests / jUnit), you can use @TestScoped

import com.google.guiceberry.TestScoped;

@Provides
@TestScoped
FlyingSquirrel provideFlyingSquirrel() {
  return new WhaleFlyingSquirrelImpl(42);
}

这篇关于在单元测试期间创建自定义@TestScoped Guice范围的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！