如何访问 Scala 中的测试资源? [英] How to access test resources in Scala?

问题描述

我在 src/test/resources/ 中有一个文件 data.xml.

I have a file data.xml in src/test/resources/.

如何在 src/test/scala/ 中的测试 data.scala 中将该文件读入新的 FileReader 中?

How can I read that file into a new FileReader in my test data.scala in src/test/scala/?

推荐答案

资源旨在使用 Java 提供的特殊 getResource 样式方法进行访问.鉴于 data.xml 在 $SBT_PROJECT_HOME/src/test/resources/ 中的示例，您可以像这样在测试中访问它:

Resources are meant to be accessed using the special getResource style methods that Java provides. Given your example of data.xml being in $SBT_PROJECT_HOME/src/test/resources/, you can access it in a test like so:

import scala.io.Source

// The string argument given to getResource is a path relative to
// the resources directory.
val source = Source.fromURL(getClass.getResource("/data.xml"))

当然，source 现在只是一个普通的 Scala IO 对象，所以你可以用它做任何你想做的事情，比如读取内容并将其用于测试数据.

Of course that source is now just a normal Scala IO object so you can do anything you want with it, like reading the contents and using it for test data.

还有其他方法可以获取资源(例如作为流).有关详细信息，请查看 getResource 方法rel="noreferrer">Java 文档:类.

There are other methods to get the resource as well (for example as a stream). For more information look at the getResource methods on the Java Docs: Class.

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