1#!/bin/bash
2
3[ -f testing.sh ] && . testing.sh
4
5# ext stores extended attributes in a way that makes all the numbers in the
6# tests below incorrect.
7# TODO: include a read-only ext file system that we can mount for the tests?
8if [ "$(stat --format %C . 2>/dev/null)" != "?" ]; then
9  echo "$SHOWSKIP: du (SELinux extended attributes present)"
10  return 2>/dev/null
11  exit
12fi
13
14# darwin stores empty directories in the inode itself, making all the numbers
15# in the tests below 0. (TODO this is not the right fix.)
16if [ "$(uname)" == "Darwin" ]; then
17  echo "$SHOWSKIP: du (Darwin stores empty directories in inode)"
18  return 2>/dev/null
19  exit
20fi
21
22#testing "name" "command" "result" "infile" "stdin"
23
24# we only test with -k since getting POSIX version is variable
25# POSIXLY_CORRECT is sometimes needed, sometimes -P is needed,
26# while -k is the default on most Linux systems
27
28mkdir -p du_test/test du_2/foo
29testing "(no options)" "du -k du_test" "4\tdu_test/test\n8\tdu_test\n" "" ""
30testing "-s" "du -k -s du_test" "8\tdu_test\n" "" ""
31ln -s ../du_2 du_test/xyz
32# "du shall count the size of the symbolic link"
33# The tests assume that like for most POSIX systems symbolic
34# links are stored directly in the inode so that the
35# allocated file space is zero.
36testing "counts symlinks without following" "du -ks du_test" "8\tdu_test\n" "" ""
37testing "-L follows symlinks" "du -ksL du_test" "16\tdu_test\n" "" ""
38ln -s . du_test/up
39testing "-L avoid endless loop" "du -ksL du_test" "16\tdu_test\n" "" ""
40rm du_test/up
41# if -H and -L are specified, the last takes priority
42testing "-HL follows symlinks" "du -ksHL du_test" "16\tdu_test\n" "" ""
43testing "-H does not follow unspecified symlinks" "du -ksH du_test" "8\tdu_test\n" "" ""
44testing "-LH does not follow unspecified symlinks" "du -ksLH du_test" "8\tdu_test\n" "" ""
45testing "-H follows specified symlinks" "du -ksH du_test/xyz" "8\tdu_test/xyz\n" "" ""
46
47rm -rf du_test du_2
48