Hello,
I was trying to use JUnit Rules (https://github.com/junit-team/junit/wiki/Rules) with Kotlin, but I failed since the rule needs to be in a public variable.
import org.junit.Rule as rule
import org.junit.Test as test
import org.junit.rules.ErrorCollector
class RuleTest {
rule
val errorCollector: ErrorCollector = ErrorCollector()
test
fun myTest() {
//something using the ErrorCollector
//errorCollector.checkThat(“a String”, is(“a String”));
}
}
Result:
java.lang.Exception: The @Rule ‘errorCollector’ must be public.
at org.junit.internal.runners.rules.RuleFieldValidator.addError(RuleFieldValidator.java:116)
at org.junit.internal.runners.rules.RuleFieldValidator.validatePublic(RuleFieldValidator.java:90)
at org.junit.internal.runners.rules.RuleFieldValidator.validateMember(RuleFieldValidator.java:74)
at org.junit.internal.runners.rules.RuleFieldValidator.validate(RuleFieldValidator.java:68)
at org.junit.runners.BlockJUnit4ClassRunner.validateFields(BlockJUnit4ClassRunner.java:174)
at org.junit.runners.BlockJUnit4ClassRunner.collectInitializationErrors(BlockJUnit4ClassRunner.java:105)
at org.junit.runners.ParentRunner.validate(ParentRunner.java:355)
at org.junit.runners.ParentRunner.<init>(ParentRunner.java:76)
at org.junit.runners.BlockJUnit4ClassRunner.<init>(BlockJUnit4ClassRunner.java:57)
at org.junit.internal.builders.JUnit4Builder.runnerForClass(JUnit4Builder.java:10)
at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)
at org.junit.internal.builders.AllDefaultPossibilitiesBuilder.runnerForClass(AllDefaultPossibilitiesBuilder.java:26)
at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)
at org.junit.internal.requests.ClassRequest.getRunner(ClassRequest.java:26)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:43)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:195)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:63)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
How can I fix this? Adding a public keyword in front of the errorCollector does not help (as expected).
Thanks