adjusted test

Author: sterlp

core/src/test/java/org/sterl/spring/persistent_tasks/AbstractSpringTest.java

@@ -136,6 +136,11 @@ public static class Task3 implements PersistentTask<String> {
 
             @Override
             public void accept(String state) {
+                try {
+                    Thread.sleep(1);
+                } catch (InterruptedException e) {
+                    throw new RuntimeException(e);
+                }
                 asserts.info(NAME + "::" + state);
             }
         }

core/src/test/java/org/sterl/spring/persistent_tasks/history/HistoryServiceTest.java

@@ -6,6 +6,7 @@
 import java.util.Optional;
 import java.util.concurrent.TimeoutException;
 
+import org.junit.jupiter.api.RepeatedTest;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.data.domain.PageRequest;