Java代码的无效Linux路径名的测试值 [英] Test value(s) for an invalid Linux path-name for Java code

问题描述

我正在对一些Java代码进行单元测试，这些Java代码必须将输入String解析为路径名.我使用的是Java 7，因此解析后的值是一个Path对象.

I'm unit testing some Java code that must parse an input String as a path-name. I'm using Java 7, so the parsed value is a Path object.

如果路径字符串不能转换为Path

因此，要检查我的解析代码是否健壮，我需要一个测试值，该值将导致Paths.get引发该异常.即，String值不是有效路径.构成有效路径的是取决于系统(甚至是文件系统)的系统，因此，我对String不是有效的POSIX路径，或者(失败了)不是有效的Linux路径特别感兴趣.

So, to check my parsing code is robust I need a test value that will cause Paths.get to throw that exception. That is, a String value that is not a valid path. What constitutes a valid path is system (even file-system) dependent, so I am specifically interested in a String that is not a valid POSIX path, or (failing that) not a valid Linux path.

推荐答案

POSIX路径名不能包含空字符.因此，由单个NUL字符(Unicode代码点0)组成的String将无效.即String "\0".对于这种情况，我可以确认Open JDK抛出InvalidPathException并显示消息Nul character not allowed.

POSIX path-names may not contain null characters. Therefore a String that consists of a single NUL character (Unicode code-point 0) will be invalid. That is, the String "\0". I can confirm that Open JDK throws a InvalidPathException, with the message Nul character not allowed, for this case.

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