IO-556: Protecting against regression.

jochenw · jochenw · commit fe7543eee5cd · 2021-04-09T21:19:34.000+02:00
diff --git a/src/test/java/org/apache/commons/io/FilenameUtilsTestCase.java b/src/test/java/org/apache/commons/io/FilenameUtilsTestCase.java
@@ -272,6 +272,9 @@ public void testNormalize() {
         assertEquals(null, FilenameUtils.normalize("\\\\g:2:3:4:5:6:7:8\\a\\b\\c.txt"));
         assertEquals(null, FilenameUtils.normalize("\\\\1ffff:2:3:4:5:6:7:8\\a\\b\\c.txt"));
         assertEquals(null, FilenameUtils.normalize("\\\\1:2\\a\\b\\c.txt"));
+        // IO-556
+        assertEquals(null, FilenameUtils.normalize("//../foo"));
+        assertEquals(null, FilenameUtils.normalize("\\\\..\\foo"));
     }
 
     /**

Original file line number	Diff line number	Diff line change
`@@ -272,6 +272,9 @@ public void testNormalize() {`
`272`	`272`	`assertEquals(null, FilenameUtils.normalize("\\\\g:2:3:4:5:6:7:8\\a\\b\\c.txt"));`
`273`	`273`	`assertEquals(null, FilenameUtils.normalize("\\\\1ffff:2:3:4:5:6:7:8\\a\\b\\c.txt"));`
`274`	`274`	`assertEquals(null, FilenameUtils.normalize("\\\\1:2\\a\\b\\c.txt"));`
	`275`	`+ // IO-556`
	`276`	`+ assertEquals(null, FilenameUtils.normalize("//../foo"));`
	`277`	`+ assertEquals(null, FilenameUtils.normalize("\\\\..\\foo"));`
`275`	`278`	`}`
`276`	`279`
`277`	`280`	`/**`