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authorRon Yorston2021-07-31 13:51:57 +0100
committerDenys Vlasenko2021-10-09 01:47:12 +0200
commit94eb1c4dc6556932e1a12a0ce7734512ac95985e (patch)
tree610126c63688ebd23617d011912f8d6dd6972973 /testsuite
parent86ba007b84ae1ebe35e88c57e023caac3d2d9903 (diff)
downloadbusybox-94eb1c4dc6556932e1a12a0ce7734512ac95985e.zip
busybox-94eb1c4dc6556932e1a12a0ce7734512ac95985e.tar.gz
libbb: better coreutils compatibility for realpath
Add some tests which coreutils realpath pass but BusyBox realpath fails (bar one). Adjust xmalloc_realpath_coreutils() so the tests pass: - Expand symbolic links before testing whether the last path component exists. - When the link target is a relative path canonicalize it by passing it through xmalloc_realpath_coreutils() as already happens for absolute paths. - Ignore trailing slashes when finding the last path component and correctly handle the case where the only slash is at the start of the path. This requires ignoring superfluous leading slashes. - Undo all changes to the path so error messages from the caller show the original filename. function old new delta xmalloc_realpath_coreutils 214 313 +99 Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'testsuite')
-rwxr-xr-xtestsuite/realpath.tests45
1 files changed, 45 insertions, 0 deletions
diff --git a/testsuite/realpath.tests b/testsuite/realpath.tests
new file mode 100755
index 0000000..0e68e02
--- /dev/null
+++ b/testsuite/realpath.tests
@@ -0,0 +1,45 @@
+#!/bin/sh
+
+# Realpath tests.
+# Copyright 2006 by Natanael Copa <n@tanael.org>
+# Copyright 2021 by Ron Yorston <rmy@pobox.com>
+# Licensed under GPLv2, see file LICENSE in this source tree.
+
+. ./testing.sh
+
+unset LC_ALL
+unset LC_MESSAGES
+unset LANG
+unset LANGUAGE
+
+TESTDIR=realpath_testdir
+TESTLINK1="link1"
+TESTLINK2="link2"
+
+# create the dir and test files
+mkdir -p "./$TESTDIR"
+ln -s "./$TESTDIR/not_file" "./$TESTLINK1"
+ln -s "./$TESTDIR/not_file/not_dir" "./$TESTLINK2"
+
+# shell's $PWD may leave symlinks unresolved.
+# "pwd" may be a built-in and have the same problem.
+# External pwd _can't_ have that problem (current dir on Unix is physical).
+pwd=`which pwd`
+pwd=`$pwd`
+testing "realpath on non-existent absolute path 1" "realpath /not_file" "/not_file\n" "" ""
+testing "realpath on non-existent absolute path 2" "realpath /not_file/" "/not_file\n" "" ""
+testing "realpath on non-existent absolute path 3" "realpath //not_file" "/not_file\n" "" ""
+testing "realpath on non-existent absolute path 4" "realpath /not_dir/not_file 2>&1" "realpath: /not_dir/not_file: No such file or directory\n" "" ""
+
+testing "realpath on non-existent local file 1" "realpath $TESTDIR/not_file" "$pwd/$TESTDIR/not_file\n" "" ""
+testing "realpath on non-existent local file 2" "realpath $TESTDIR/not_dir/not_file 2>&1" "realpath: $TESTDIR/not_dir/not_file: No such file or directory\n" "" ""
+
+testing "realpath on link to non-existent file 1" "realpath $TESTLINK1" "$pwd/$TESTDIR/not_file\n" "" ""
+testing "realpath on link to non-existent file 2" "realpath $TESTLINK2 2>&1" "realpath: $TESTLINK2: No such file or directory\n" "" ""
+testing "realpath on link to non-existent file 3" "realpath ./$TESTLINK1" "$pwd/$TESTDIR/not_file\n" "" ""
+testing "realpath on link to non-existent file 4" "realpath ./$TESTLINK2 2>&1" "realpath: ./$TESTLINK2: No such file or directory\n" "" ""
+
+# clean up
+rm -r "$TESTLINK1" "$TESTLINK2" "$TESTDIR"
+
+exit $((FAILCOUNT <= 255 ? FAILCOUNT : 255))