kotest-intellij-plugin: KotlinTest run configuration not detected

Sure, the run configuration (this is used regardless of which green arrow I click):

And here’s the test output pane:

Here’s the relevant logging output:

40 [main] DEBUG KotlinTestEngine - configurationParameters=LauncherConfigurationParameters []
40 [main] DEBUG KotlinTestEngine - uniqueId=[engine:kotlintest]
60 [main] DEBUG KotlinTestEngine - LauncherDiscoveryRequest [
classpathRootSelectors=[]
classpathResourceSelectors=[]
classSelectors=[com.mycompany.testmaster.domain.nodes.CompositeNodeTests]
methodSelectors=[]
directorySelectors=[]
fileSelectors=[]
moduleSelectors=[]
packageSelectors=[]
uniqueIdSelectors=[]
uriSelectors=[]
engineFilters=[]
postDiscoveryFilters=[]
classnameFilters=[]
packageNameFilters=[]
]
120 [main] DEBUG TestDiscovery - Loaded 1 classes from classnames...
395 [main] DEBUG TestDiscovery - ...which has filtered to 1 non abstract classes
395 [main] DEBUG TestDiscovery - 1 classes after applying discovery extensions405 [main] DEBUG KotlinTestEngine - configurationParameters=LauncherConfigurationParameters []
405 [main] DEBUG KotlinTestEngine - uniqueId=[engine:kotlintest]
405 [main] DEBUG KotlinTestEngine - LauncherDiscoveryRequest [
classpathRootSelectors=[]
classpathResourceSelectors=[]
classSelectors=[com.mycompany.testmaster.domain.nodes.CompositeNodeTests]
methodSelectors=[]
directorySelectors=[]
fileSelectors=[]
moduleSelectors=[]
packageSelectors=[]
uniqueIdSelectors=[]
uriSelectors=[]
engineFilters=[]
postDiscoveryFilters=[]
classnameFilters=[]
packageNameFilters=[]
]
415 [main] DEBUG KotlinTestEngine - JUnit execution request [configurationParameters=LauncherConfigurationParameters []; rootTestDescriptor=KotlinTestEngineDescriptor: [engine:kotlintest]]
415 [main] DEBUG JUnitTestRunnerListener - Engine started; classes=[[class com.mycompany.testmaster.domain.nodes.CompositeNodeTests]]
415 [main] DEBUG TestEngine - Submitting 1 specs
415 [main] DEBUG TestEngine - Waiting for spec execution service to terminate
437 [kotlintest-engine-0] DEBUG JUnitTestRunnerListener - prepareSpec [Description(parents=[], name=CompositeNodeTests)]447 [kotlintest-test-executor-0] DEBUG JUnitTestRunnerListener - Creating test case descriptor Description(parents=[CompositeNodeTests], name=Describe: Composite node)/Container
457 [kotlintest-test-executor-0] DEBUG JUnitTestRunnerListener - Notifying junit of start event [engine:kotlintest]/[spec:CompositeNodeTests]/[test:Describe%3A Composite node]457 [kotlintest-test-executor-0] DEBUG JUnitTestRunnerListener - Creating test case descriptor Description(parents=[CompositeNodeTests, Describe: Composite node], name=Scenario: immediately executes once and terminates if it has no inputs and no outputs)/Test
457 [kotlintest-test-executor-0] DEBUG JUnitTestRunnerListener - Notifying junit of start event [engine:kotlintest]/[spec:CompositeNodeTests]/[test:Describe%3A Composite node]/[test:Scenario%3A immediately executes once and terminates if it has no inputs and no outputs]
634 [kotlintest-engine-0] DEBUG JUnitTestRunnerListener - Notifying junit of test case completion [engine:kotlintest]/[spec:CompositeNodeTests]/[test:Describe%3A Composite node]=TestResult(status=Failure, error=java.lang.AssertionError: Expected exception java.lang.IllegalStateException but no exception was thrown, reason=null, metaData={})

_Originally posted by @TAGC in https://github.com/kotlintest/kotlintest/issues/329#issuecomment-465558665_