chore: apply review suggestions

repository/SmalltalkCI-Pharo-Tests.package/SCIPharoTestSuiteNestingTest.class/instance/testResourcesSetupOnce.st

@@ -4,6 +4,9 @@ testResourcesSetupOnce
 	In Pharo, some test runners nest suites and currently test resources are not
 	properly handled in that case, i.e., test resources would be instantiated
 	once per test class (usually)."
+	self assert: SCIDummyPharoTestResource setUpCounter isNil.
+	self assert: SCIDummyPharoTestResource tearDownCounter isNil.
+
 	SmalltalkCI testRunnerClass runSpec: (SCIDummySpec forClasses: { 
 		SCIPharoTestSuiteNestingTestCase1.
 		SCIPharoTestSuiteNestingTestCase2 }).