测试中的TypeSafe配置（无法将替换解析为值）

Question

All,

I am using the HOCON based typesafe config in a project.

This is a Scala project, and we are striving for 100% test coverage.

I have two test configs: test1.conf and test2.conf ... here is the code for loading

object TypeSafeTestConfigProvider {
  System.setProperty("foo","value")
  System.setProperty("bar","value")
  val config1 = ConfigFactory.load("test1.conf")
  val config2 = ConfigFactory.load("test2.conf")
}

neither foo nor bar can be resolved for some reason if I run a single test ... yet they resolve without an issue if I run all my tests together ... which is very inconvenient.

It appears the ConfigFactory class takes a static snapshot of System.properties and future changes to System properties are not reflected in the resolution process.

How would you recommend I setup my tests?

Answer 1

com.typesafe.config.ConfigFactory.invalidateCaches(); did the job for me. Playing with System Properties in unit tests is a Pain.