test_must_fail test-path-utils absolute_path ""
'
-test_expect_success SYMLINKS 'real path works as expected' '
+test_expect_success 'real path rejects the empty string' '
+ test_must_fail test-path-utils real_path ""
+'
+
+test_expect_success POSIX 'real path works on absolute paths 1' '
+ nopath="hopefully-absent-path" &&
+ test "/" = "$(test-path-utils real_path "/")" &&
+ test "/$nopath" = "$(test-path-utils real_path "/$nopath")"
+'
+
+test_expect_success 'real path works on absolute paths 2' '
+ nopath="hopefully-absent-path" &&
+ # Find an existing top-level directory for the remaining tests:
+ d=$(pwd -P | sed -e "s|^\([^/]*/[^/]*\)/.*|\1|") &&
+ test "$d" = "$(test-path-utils real_path "$d")" &&
+ test "$d/$nopath" = "$(test-path-utils real_path "$d/$nopath")"
+'
+
+test_expect_success POSIX 'real path removes extra leading slashes' '
+ nopath="hopefully-absent-path" &&
+ test "/" = "$(test-path-utils real_path "///")" &&
+ test "/$nopath" = "$(test-path-utils real_path "///$nopath")" &&
+ # Find an existing top-level directory for the remaining tests:
+ d=$(pwd -P | sed -e "s|^\([^/]*/[^/]*\)/.*|\1|") &&
+ test "$d" = "$(test-path-utils real_path "//$d")" &&
+ test "$d/$nopath" = "$(test-path-utils real_path "//$d/$nopath")"
+'
+
+test_expect_success 'real path removes other extra slashes' '
+ nopath="hopefully-absent-path" &&
+ # Find an existing top-level directory for the remaining tests:
+ d=$(pwd -P | sed -e "s|^\([^/]*/[^/]*\)/.*|\1|") &&
+ test "$d" = "$(test-path-utils real_path "$d///")" &&
+ test "$d/$nopath" = "$(test-path-utils real_path "$d///$nopath")"
+'
+
+test_expect_success SYMLINKS 'real path works on symlinks' '
mkdir first &&
ln -s ../.git first/.git &&
mkdir second &&