使用robotframework-selenium时如何测试空白文本字段？
将 robotsframework-seleniumlibrary 与 TSV 文件一起使用时，如何为文本字段指定空白/空值？例如，我有以下内容：
Textfield Value Should Be identifier=name1 Chris
Textfield Value Should Be identifier=name2
我想测试 name2 是否为空。我尝试将其留空（这会返回有关参数数量不正确的消息。我尝试过“”，它查找一对引号，而''输入单引号，而selenium似乎会查找该
How can I specify blank/empty value for a text field when using the robotframework-seleniumlibrary with a TSV file? For example, I have the following:
Textfield Value Should Be identifier=name1 Chris
Textfield Value Should Be identifier=name2
I want to test that name2 is blank. I have tried leaving it blank (which returns a message about an incorrect number of arguments. I have tried "", which looks for a pair of quotes, and '' which enters a single quote, and selenium seems to look for that
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评论（3）
您可以使用单个反斜杠
\或特殊变量${EMPTY}在测试数据中创建空字符串。用户指南包含详细信息：机器人框架用户指南。You can use either a single backslash
\or special variable${EMPTY}to create an empty string in the test data. User guide has the details: Robot Framework User Guide.是的，
${EMPTY}是一个内置变量。有很多示例，请参阅此处的示例
Yes,
${EMPTY}is a built in variable.There are many examples, see an example here
${EMPTY}对于空白值很有用，但令人惊讶的是，它不适用于空值。我找到了我要找的东西。我正在验证的字段的 value 属性没有值，我想验证它。它返回
''作为值，但在使用${EMPTY}时却找不到''''。这是一件小事，但最终解决了我需要的问题，所以这取决于你想要验证的内容。${EMPTY}is good for a blank value but, surprisingly, it didn't work for an empty value.I found what I was looking for. The field I was verifying had no value in its value attribute and I wanted to verify it. It was returning
''as the value and when using${EMPTY}it couldn't find''''instead. Such a minor thing but ended up solving what I needed, so it depends what you're seeking to verify.