1 files changed, 111 insertions, 0 deletions
diff --git a/tests/misc/realpath.sh b/tests/misc/realpath.sh
new file mode 100755
index 0000000..fdbf884
--- /dev/null
+++ b/tests/misc/realpath.sh
@@ -0,0 +1,111 @@
+#!/bin/sh
+# Validate realpath operation
+
+# Copyright (C) 2011-2020 Free Software Foundation, Inc.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
+print_ver_ realpath
+
+stat_single=$(stat -c %d:%i /) || framework_failure_
+stat_double=$(stat -c %d:%i //) || framework_failure_
+double_slash=//
+if test x"$stat_single" = x"$stat_double"; then
+  double_slash=/
+fi
+nl='
+'
+
+test -d /dev || framework_failure_
+
+# Setup dir, file, symlink structure
+
+mkdir -p dir1/dir2 || framework_failure_
+ln -s dir1/dir2 ldir2 || framework_failure_
+touch dir1/f dir1/dir2/f || framework_failure_
+ln -s / one || framework_failure_
+ln -s // two || framework_failure_
+ln -s /// three || framework_failure_
+
+# Basic operation
+realpath -Pqz . >/dev/null || fail=1
+# Operand is required
+returns_ 1 realpath >/dev/null || fail=1
+returns_ 1 realpath --relative-base . --relative-to . || fail=1
+returns_ 1 realpath --relative-base . || fail=1
+
+# -e --relative-* require directories
+returns_ 1 realpath -e --relative-to=dir1/f --relative-base=. . || fail=1
+realpath -e --relative-to=dir1/  --relative-base=. . || fail=1
+
+# Note NUL params are unconditionally rejected by canonicalize_filename_mode
+returns_ 1 realpath -m '' || fail=1
+returns_ 1 realpath --relative-base= --relative-to=. . || fail=1
+
+# symlink resolution
+this=$(realpath .)
+test "$(realpath ldir2/..)" = "$this/dir1" || fail=1
+test "$(realpath -L ldir2/..)" = "$this" || fail=1
+test "$(realpath -s ldir2)" = "$this/ldir2" || fail=1
+
+# relative string handling
+test $(realpath -m --relative-to=prefix prefixed/1) = '../prefixed/1' || fail=1
+test $(realpath -m --relative-to=prefixed prefix/1) = '../prefix/1' || fail=1
+test $(realpath -m --relative-to=prefixed prefixed/1) = '1' || fail=1
+
+# Ensure no redundant trailing '/' present, as was the case in v8.15
+test $(realpath -sm --relative-to=/usr /) = '..' || fail=1
+# Ensure no redundant leading '../' present, as was the case in v8.15
+test $(realpath -sm --relative-to=/ /usr) = 'usr' || fail=1
+
+# Ensure --relative-base works
+out=$(realpath -sm --relative-base=/usr --relative-to=/usr /tmp /usr) || fail=1
+test "$out" = "/tmp$nl." || fail=1
+out=$(realpath -sm --relative-base=/ --relative-to=/ / /usr) || fail=1
+test "$out" = ".${nl}usr" || fail=1
+# --relative-to defaults to the value of --relative-base
+out=$(realpath -sm --relative-base=/usr /tmp /usr) || fail=1
+test "$out" = "/tmp$nl." || fail=1
+out=$(realpath -sm --relative-base=/ / /usr) || fail=1
+test "$out" = ".${nl}usr" || fail=1
+# For now, --relative-base must be a prefix of --relative-to, or all output
+# will be absolute (compare to MacOS 'relpath -d dir start end').
+out=$(realpath -sm --relative-base=/usr/local --relative-to=/usr \
+    /usr /usr/local) || fail=1
+test "$out" = "/usr${nl}/usr/local" || fail=1
+
+# Ensure // is handled correctly.
+test "$(realpath / // ///)" = "/$nl$double_slash$nl/" || fail=1
+test "$(realpath one two three)" = "/$nl$double_slash$nl/" || fail=1
+out=$(realpath -sm --relative-to=/ / // /dev //dev) || fail=1
+if test $double_slash = //; then
+  test "$out" = ".$nl//${nl}dev$nl//dev" || fail=1
+else
+  test "$out" = ".$nl.${nl}dev${nl}dev" || fail=1
+fi
+out=$(realpath -sm --relative-to=// / // /dev //dev) || fail=1
+if test $double_slash = //; then
+  test "$out" = "/$nl.$nl/dev${nl}dev" || fail=1
+else
+  test "$out" = ".$nl.${nl}dev${nl}dev" || fail=1
+fi
+out=$(realpath --relative-base=/ --relative-to=// / //) || fail=1
+if test $double_slash = //; then
+  test "$out" = "/$nl//" || fail=1
+else
+  test "$out" = ".$nl." || fail=1
+fi
+
+Exit $fail