@Test
    void task_not_completed_within_deadline_with_deferred_activation_checks_activation_version() throws Exception {
        doTestTaskDeadlineExceeded(true, "the following nodes have not converged to " +
                "at least version 3: distributor.0, distributor.1, distributor.2, distributor.3, " +
                "distributor.4, distributor.5, distributor.6, distributor.7, distributor.8, distributor.9 " +
                "(... and 10 more)");
    }
Class for testing states of all nodes. Will fail in constructor with
debug message on non-expected results.
clustercontroller-core/src/test/java/com/yahoo/vespa/clustercontroller/core/StateChangeTest.java