File

this.getClass().getProtectionDomain().getCodeSource().getLocation().toURI().getPath()

//File
File file = new File(this.getClass().getResource("/line_counter_test.txt.gz").toURI());
//Stream
InputStream in = this.getClass().getResourceAsStream("/line_counter_test.txt”);

//统计文件行数，效率慢，且只能获取非压缩文件
Files.lines(Paths.get(new File("e://test.fa").getPath())).count();

//对比文件内容
assertTrue(FileUtils.contentEquals(resourceFile, resultFile));