如何在黄瓜中使用可选参数

Question

我想要相同的小黄瓜句子（带参数和不带参数）：

带参数的小黄瓜：

When a 'notify' message is sent to the green box with the properties.
 |type|message|
 |error|The error message|

没有参数的小黄瓜：

When a 'notify' message is sent to the green box with the properties.

爪哇（黄瓜）：

@When("^a '(.*)' message is sent to the green box with the properties.$")
public void hello(String name, List<GherkinCondition> conditions) {
    ...
}

我有一个错误，因为 java 方法是用 2 个参数声明的，在“没有参数”的情况下，我只有一个。

堆栈跟踪：

cucumber.runtime.CucumberException: Arity mismatch: Step Definition 'steps.CommonSteps.hello(String,GherkinCondition>) in file:/C:/workspace/xxxxx/java/target/classes/' with pattern [^a '(.*)' message is sent to the green box with the properties.$] is declared with 2 parameters. However, the gherkin step has 1 arguments [notify]. 

Answer 1

Cucumber 步骤定义不支持可选参数。

您可以编写两个不同的步骤定义，也可以为第二种情况提供一个空的数据表。

When a 'notify' message is sent to the green box with the properties.
 |type|message|

甚至

When a 'notify' message is sent to the green box with the properties.
     |||