cucumber.runtime.CucumberException: Arity mismatch: Step Definition in selenium with Java 的错误是什么
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what is the error of cucumber.runtime.CucumberException: Arity mismatch: Step Definition in selenium with Java
提问by Chathurika Prabodani
I have wrritten a feature file to test the create elements button. But it generates an error message of
我写了一个功能文件来测试创建元素按钮。但它会生成一条错误消息
cucumber.runtime.CucumberException: Arity mismatch: Step Definition.
I dont know why its happening since I am new to automation testing.
我不知道为什么会发生这种情况，因为我是自动化测试的新手。
The following is the code that I have written.
下面是我写的代码。
@When("^create elements$")
public void create_elements_for_attributes(WebElement elementToClick) throws Throwable {
driver.findElement(By.id("newElement")).click();
}
The error that I have recieved is as follows.
我收到的错误如下。
cucumber.runtime.CucumberException: Arity mismatch: Step Definition 'mCollector.features.StepDefinitions_mCollector.create_elements_for_attributes(WebElement) in file:/C:/Users/Admin/workspace/MStudio%20-%20eBilling/bin/' with pattern [^create elements$] is declared with 1 parameters. However, the gherkin step has 0 arguments [].
回答by Eugene S
In your create_elements_for_attributesmethod you are expecting one argument of type WebElementbut your regex does not capture any arguments. It should look something like that instead:
在您的create_elements_for_attributes方法中，您需要一个类型的参数，WebElement但您的正则表达式不捕获任何参数。它应该看起来像这样：
@When("^create elements \"([^\"]*)\"$")
And then in your feature file:
然后在您的功能文件中：
When create elements "element"
But that won't work either because you can't pass a WebeElementobject from your Cucumber feature file. You should only operate with primitive values and DataTables. Other types (like WebeElement)should be created internally in the glue code itself.
但这也行不通，因为您无法WebeElement从 Cucumber 功能文件中传递对象。您应该只使用原始值和数据表进行操作。其他类型（比如WebeElement)应该在粘合代码本身内部创建。
