TestNG断言似乎不适用于黄瓜/小黄瓜文档字符串？

Question

我目前正在尝试使用Cucumber Doc字符串，此处更多信息：https://docs.cucumber.io/gherkin/reference/#gherkin-dialects，但是我的代码似乎无法使用TestNG断言将功能文件字符串与包含在我的步骤文件中的字符串进行比较，想法？

我的功能文件：

  Scenario: Test
    Given then i should receive an email with the body off:
    """
    then i should receive an email with the body off
    then i should receive an email with the body off.
    """

我的步进方法：

@Given("^then i should receive an email with the body off:")
public void how_are_your(String arg1) {
    Assert.assertEquals(arg1, "then i should receive an email with the body off" + "\nthen i should receive an email with the body off.");
}

断言似乎失败，提供以下异常：

java.lang.AssertionError: expected [then i should receive an email with the body off
then i should receive an email with the body off.] but found [then i should receive an email with the body off
then i should receive an email with the body off.]

并排的异常：

expected [then i should receive an email with the body off
then i should receive an email with the body off.] 

found [then i should receive an email with the body off
then i should receive an email with the body off.]