Update ActivationRuleGroupTest.java

update a piece of code in whenNoSelectedRule_thenNothingShouldHappen unitCase . 
that should be set to `rule4`

easy-rules-support/src/test/java/org/jeasy/rules/support/ActivationRuleGroupTest.java

@@ -86,7 +86,7 @@ public class ActivationRuleGroupTest {
     public void whenNoSelectedRule_thenNothingShouldHappen(){
         // given
         Rule4 rule4 = new Rule4();
-        ActivationRuleGroup activationRuleGroup = new ActivationRuleGroup("my activation rule", "rule2 xor rule3");
+        ActivationRuleGroup activationRuleGroup = new ActivationRuleGroup("my activation rule", "rule4");
         activationRuleGroup.addRule(rule4);
 
         //when
@@ -152,4 +152,4 @@ public class ActivationRuleGroupTest {
         public boolean isExecuted() { return executed; }
 
     }
-}
+}