Karate框架中多行字符串变量存储与打印异常问题咨询

问题原因 #

你当前的写法中，Karate会将"""内部的每行内容当作独立的表达式处理，最后一行的字符串赋值覆盖了前面的行，导致最终变量仅保留最后一行内容。

解决方案 #

以下是三种可行的解决方法：

方案1：使用text关键字定义多行文本（推荐）

Karate 1.0及以上版本支持text关键字，专门用于定义多行文本字符串，不会将每行解析为独立表达式：

* text value =
    """
    'Karate is the only open-source tool to combine API test-automation, mocks, performance-testing and even UI automation into a single, unified framework.'
    '1. The syntax is language-neutral, and easy for even non-programmers. Assertions and HTML reports are built-in, and you can run tests in parallel for speed.'
    '2. There\'s also a cross-platform stand-alone executable for teams not comfortable with Java. You don\'t have to compile code.'
    """
* def value2 = value
* print value2

方案2：统一"""内部内容的缩进

确保"""内部的所有内容行与"""保持相同的缩进级别，让Karate将其识别为一个完整的多行字符串：

* def value =
    """
    'Karate is the only open-source tool to combine API test-automation, mocks, performance-testing and even UI automation into a single, unified framework.'
    '1. The syntax is language-neutral, and easy for even non-programmers. Assertions and HTML reports are built-in, and you can run tests in parallel for speed.'
    '2. There\'s also a cross-platform stand-alone executable for teams not comfortable with Java. You don\'t have to compile code.'
    """
* def value2 = value
* print value2

方案3：用换行符\n手动拼接字符串

通过+连接带换行符的字符串片段，明确构造包含多行的字符串：

* def value = "'Karate is the only open-source tool to combine API test-automation, mocks, performance-testing and even UI automation into a single, unified framework.'\n" +
  "'1. The syntax is language-neutral, and easy for even non-programmers. Assertions and HTML reports are built-in, and you can run tests in parallel for speed.'\n" +
  "'2. There\'s also a cross-platform stand-alone executable for teams not comfortable with Java. You don\'t have to compile code.'"
* def value2 = value
* print value2

效果验证 #

以上任意方案执行后，print value2都会输出你预期的完整多行字符串内容。

内容的提问来源于stack exchange，提问作者Shreyansh Jain