1 files changed, 84 insertions, 0 deletions
diff --git a/tests/ls/stat-free-color.sh b/tests/ls/stat-free-color.sh
new file mode 100755
index 0000000..25bdeb0
--- /dev/null
+++ b/tests/ls/stat-free-color.sh
@@ -0,0 +1,84 @@
+#!/bin/sh
+# Show that --color need not use stat, as long as we have d_type support.
+
+# Copyright (C) 2011-2016 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 <http://www.gnu.org/licenses/>.
+
+. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
+print_ver_ ls
+
+# Note this list of _file name_ stat functions must be
+# as cross platform as possible and so doesn't include
+# fstatat64 as that's not available on aarch64 for example.
+stats='stat,lstat,stat64,lstat64,newfstatat'
+
+require_strace_ $stats
+require_dirent_d_type_
+
+# Disable enough features via LS_COLORS so that ls --color
+# can do its job without calling stat (other than the obligatory
+# one-call-per-command-line argument).
+cat <<EOF > color-without-stat || framework_failure_
+RESET 0
+DIR 01;34
+LINK 01;36
+FIFO 40;33
+SOCK 01;35
+DOOR 01;35
+BLK 40;33;01
+CHR 40;33;01
+ORPHAN 00
+SETUID 00
+SETGID 00
+CAPABILITY 00
+STICKY_OTHER_WRITABLE 00
+OTHER_WRITABLE 00
+STICKY 00
+EXEC 00
+MULTIHARDLINK 00
+EOF
+eval $(dircolors -b color-without-stat)
+
+# The system may perform additional stat-like calls before main.
+# Furthermore, underlying library functions may also implicitly
+# add an extra stat call, e.g. opendir since glibc-2.21-360-g46f894d.
+# To avoid counting those, first get a baseline count for running
+# ls with one empty directory argument.  Then, compare that with the
+# invocation under test.
+mkdir d || framework_failure_
+
+strace -o log1 -e $stats ls --color=always d || fail=1
+n_stat1=$(wc -l < log1) || framework_failure_
+
+test $n_stat1 = 0 \
+  && skip_ 'No stat calls recognized on this platform'
+
+# Populate the test directory.
+mkdir d/subdir \
+  && touch d/regf \
+  && ln d/regf d/hlink \
+  && ln -s regf d/slink \
+  && ln -s nowhere d/dangle \
+  || framework_failure_
+
+# Invocation under test.
+strace -o log2 -e $stats ls --color=always d || fail=1
+n_stat2=$(wc -l < log2) || framework_failure_
+
+# Expect the same number of stat calls.
+test $n_stat1 = $n_stat2 \
+  || { fail=1; head -n30 log*; }
+
+Exit $fail