test "$sym" = "$(test-path-utils real_path "$dir2/syml")"
'
-relative_path /a/b/c/ /a/b/ c/
-relative_path /a/b/c/ /a/b c/
-relative_path /a//b//c/ //a/b// c/ POSIX
-relative_path /a/b /a/b ./
-relative_path /a/b/ /a/b ./
-relative_path /a /a/b ../
-relative_path / /a/b/ ../../
-relative_path /a/c /a/b/ ../c
-relative_path /a/c /a/b ../c
-relative_path /x/y /a/b/ ../../x/y
-relative_path /a/b "<empty>" /a/b
-relative_path /a/b "<null>" /a/b
-relative_path a/b/c/ a/b/ c/
-relative_path a/b/c/ a/b c/
-relative_path a/b//c a//b c
-relative_path a/b/ a/b/ ./
-relative_path a/b/ a/b ./
-relative_path a a/b ../
-relative_path x/y a/b ../../x/y
-relative_path a/c a/b ../c
-relative_path a/b "<empty>" a/b
-relative_path a/b "<null>" a/b
-relative_path "<empty>" /a/b ./
-relative_path "<empty>" "<empty>" ./
-relative_path "<empty>" "<null>" ./
-relative_path "<null>" "<empty>" ./
-relative_path "<null>" "<null>" ./
-relative_path "<null>" /a/b ./
+relative_path /foo/a/b/c/ /foo/a/b/ c/
+relative_path /foo/a/b/c/ /foo/a/b c/
+relative_path /foo/a//b//c/ ///foo/a/b// c/ POSIX
+relative_path /foo/a/b /foo/a/b ./
+relative_path /foo/a/b/ /foo/a/b ./
+relative_path /foo/a /foo/a/b ../
+relative_path / /foo/a/b/ ../../../
+relative_path /foo/a/c /foo/a/b/ ../c
+relative_path /foo/a/c /foo/a/b ../c
+relative_path /foo/x/y /foo/a/b/ ../../x/y
+relative_path /foo/a/b "<empty>" /foo/a/b
+relative_path /foo/a/b "<null>" /foo/a/b
+relative_path foo/a/b/c/ foo/a/b/ c/
+relative_path foo/a/b/c/ foo/a/b c/
+relative_path foo/a/b//c foo/a//b c
+relative_path foo/a/b/ foo/a/b/ ./
+relative_path foo/a/b/ foo/a/b ./
+relative_path foo/a foo/a/b ../
+relative_path foo/x/y foo/a/b ../../x/y
+relative_path foo/a/c foo/a/b ../c
+relative_path foo/a/b /foo/x/y foo/a/b
+relative_path /foo/a/b foo/x/y /foo/a/b
+relative_path d:/a/b D:/a/c ../b MINGW
+relative_path C:/a/b D:/a/c C:/a/b MINGW
+relative_path foo/a/b "<empty>" foo/a/b
+relative_path foo/a/b "<null>" foo/a/b
+relative_path "<empty>" /foo/a/b ./
+relative_path "<empty>" "<empty>" ./
+relative_path "<empty>" "<null>" ./
+relative_path "<null>" "<empty>" ./
+relative_path "<null>" "<null>" ./
+relative_path "<null>" /foo/a/b ./
test_done