Cucumber多标签匹配疑问：为何@tag2 and @tag3会执行对应场景？

问题场景 #

在Cucumber的Feature文件中，存在标注了@tag1 @tag2 @tag3标签的Scenario_2场景。在Runner类中配置tags = "@tag2 and @tag3"，原本预期该场景不会被匹配执行，但实际却运行了Scenario_2的所有步骤，这是为什么？

Feature文件代码 #

@tag1 @tag2 @tag3   
Scenario: Scenario_2
Given This is the first step in Second Scenario 
When This is the second step in Second Scenario 
Then This is the third step in Second Scenario

Runner类代码 #

@RunWith(Cucumber.class)
@CucumberOptions(features = {"src/test/resources/features/cucumbertags_26.feature"}, 
                     glue = {"com.stepdefinitions"}, 
                     tags = "@tag2 and @tag3",
                     monochrome = true)
public class TestRunner_SamplePage 
{

}

实际执行输出 #

^This is the first step in Second Scenario$
^This is the second step in Second Scenario$
^This is the third step in Second Scenario$

原因说明 #

这是Cucumber标签匹配的正常预期行为：

• Cucumber中@tag2 and @tag3的逻辑是：匹配同时包含@tag2和@tag3标签的场景，场景是否带有其他额外标签（比如这里的@tag1）不影响匹配结果。
• 你的Scenario_2同时具备@tag2和@tag3两个标签，完全满足匹配条件，因此会被执行。
• 若要实现“只包含@tag2和@tag3，排除带有其他标签的场景”，需要调整标签逻辑为：(@tag2 and @tag3) and not @tag1。

内容的提问来源于stack exchange，提问作者asn