The tests for link and du are attached.

1 files changed, 26 insertions, 0 deletions

diff --git a/scripts/test/du.test b/scripts/test/du.test
new file mode 100755
index 00000000..ee4867b8
--- /dev/null
+++ b/scripts/test/du.test
@@ -0,0 +1,26 @@
+#!/bin/bash
+
+[ -f testing.sh ] && . testing.sh
+
+#testing "name" "command" "result" "infile" "stdin"
+
+# we only test with -k since getting POSIX version is variable
+# POSIXLY_CORRECT is sometimes needed, sometimes -P is needed,
+# while -k is the default on most Linux systems
+
+mkdir -p du_test/test du_2/foo
+testing "du (no options)" "du -k du_test" "4\tdu_test/test\n8\tdu_test\n" "" ""
+testing "du -s" "du -k -s du_test" "8\tdu_test\n" "" ""
+ln -s ../du_2 du_test/xyz
+# "du shall count the size of the symbolic link"
+# I assume this means the space used to store the link name
+testing "du counts symlinks without following" "du -ks du_test" "12\tdu_test\n" "" ""
+testing "du -L follows symlinks" "du -ksL du_test" "16\tdu_test\n" "" ""
+# if -H and -L are specified, the last takes priority
+testing "du -HL follows symlinks" "du -ksHL du_test" "16\tdu_test\n" "" ""
+testing "du -H does not follow unspecified symlinks" "du -ksH du_test" "12\tdu_test\n" "" ""
+testing "du -LH does not follow unspecified symlinks" "du -ksLH du_test" "12\tdu_test\n" "" ""
+testing "du -H follows specified symlinks" "du -ksH du_test/xyz" "8\tdu_test/xyz\n" "" ""
+
+rm -rf du_test du_2
+