Android 在单元测试中调用Dispatchers.setMain()时出错
已开始尝试在JUnit单元测试中使用Android 在单元测试中调用Dispatchers.setMain()时出错,android,kotlin,coroutine,kotlinx.coroutines,Android,Kotlin,Coroutine,Kotlinx.coroutines,已开始尝试在JUnit单元测试中使用kotlinx协程测试(),但在调用Dispatchers.setMain()时出现以下错误 我尝试调用Dispatchers.setMain(Dispatchers.Unconfined)并传入val mainthreadsrogate=newSingleThreadContext(“UI线程”)。看起来问题并不是因为传入了值,而是在下面的maindpatchertest中出错了 public fun Dispatchers.setMain(dispatch
kotlinx协程测试
(),但在调用Dispatchers.setMain()时出现以下错误
我尝试调用Dispatchers.setMain(Dispatchers.Unconfined)
并传入val mainthreadsrogate=newSingleThreadContext(“UI线程”)
。看起来问题并不是因为传入了值,而是在下面的maindpatcher
test中出错了
public fun Dispatchers.setMain(dispatcher: CoroutineDispatcher) {
require(dispatcher !is TestMainDispatcher) { "Dispatchers.setMain(Dispatchers.Main) is prohibited, probably Dispatchers.resetMain() should be used instead" }
val mainDispatcher = Dispatchers.Main
require(mainDispatcher is TestMainDispatcher) { "TestMainDispatcher is not set as main dispatcher, have $mainDispatcher instead." }
mainDispatcher.setDispatcher(dispatcher)
}
尝试将核心添加为测试的依赖项。它为我解决了问题
testImplementation(“org.jetbrains.kotlinx:kotlinx coroutines core:1.1.0”)
原来的问题是我使用的是较旧版本的kotlinx coroutines core
依赖项。当我更新到v1.1.0时,它起了作用(感谢@vigit帮助触发了这一实现!)感谢@yigit…所以,我已经将其作为正常的实现
依赖项了…但是你的回答让我注意到我没有使用版本1.1…我更新到了,它起了作用!我也有同样的问题。正在使用不同的核心和测试版本。使用相同的1.1.0版本解决了这个错误。
public fun Dispatchers.setMain(dispatcher: CoroutineDispatcher) {
require(dispatcher !is TestMainDispatcher) { "Dispatchers.setMain(Dispatchers.Main) is prohibited, probably Dispatchers.resetMain() should be used instead" }
val mainDispatcher = Dispatchers.Main
require(mainDispatcher is TestMainDispatcher) { "TestMainDispatcher is not set as main dispatcher, have $mainDispatcher instead." }
mainDispatcher.setDispatcher(dispatcher)
}