### Question:
RuleBuilder { public Rule build() { return new DefaultRule(name, description, priority, condition, actions); }  RuleBuilder name(String name); RuleBuilder description(String description); RuleBuilder priority(int priority); RuleBuilder when(Condition condition); RuleBuilder then(Action action); Rule build();  }### Answer:
@Test public void testDefaultRuleCreationWithDefaultValues() { Rule rule = new RuleBuilder().build(); assertThat(rule.getName()).isEqualTo(Rule.DEFAULT_NAME); assertThat(rule.getDescription()).isEqualTo(Rule.DEFAULT_DESCRIPTION); assertThat(rule.getPriority()).isEqualTo(Rule.DEFAULT_PRIORITY); assertThat(rule).isInstanceOf(DefaultRule.class); }