Add test for extracting ar archive without long filenames

Author: dmach

tests/fixtures/README

@@ -33,3 +33,9 @@ Create archive.cpio
 
 printf "/tmp/foo\0/123\0very-long-long-long-long-name\0very-long-long-long-long-name2\0very-long-name
 -with-newline\0a\nb\0dir/file\0" | cpio -ocv0 --owner=root:root > archive.cpio
+
+
+Create archive-no-ext_fnhdr.ar
+------------------------------
+
+ar qP archive-no-ext_fnhdr.ar dir/file

tests/fixtures/archive-no-ext_fnhdr.ar

@@ -0,0 +1,3 @@
+!<arch>
+dir/file/       1724142481  1000  1000  100644  14        `
+file-in-a-dir

tests/test_util_ar.py

@@ -81,6 +81,12 @@ def test_saveTo_abspath(self):
         # this is supposed to throw an error, extracting files with absolute paths might overwrite system files
         self.assertRaises(ArError, f.saveTo, self.tmpdir)
 
+    def test_no_exthdr(self):
+        self.archive = os.path.join(FIXTURES_DIR, "archive-no-ext_fnhdr.ar")
+        self.ar = Ar(self.archive)
+        self.ar.read()
+        self.test_saveTo_subdir()
+
 
 if __name__ == "__main__":
     unittest.main()