tests: (waitpid) add tests for the pidfd inode format support

Signed-off-by: Christian Goeschel Ndjomouo <cgoesc2@wgu.edu>

diff --git a/tests/expected/waitpid/pidfd-ino-count b/tests/expected/waitpid/pidfd-ino-count
new file mode 100644 (file)
index 0000000..d00491f
--- /dev/null
+++ b/tests/expected/waitpid/pidfd-ino-count
@@ -0,0 +1 @@
+1

diff --git a/tests/expected/waitpid/pidfd-ino-count.err b/tests/expected/waitpid/pidfd-ino-count.err
new file mode 100644 (file)
index 0000000..573541a
--- /dev/null
+++ b/tests/expected/waitpid/pidfd-ino-count.err
@@ -0,0 +1 @@
+0

diff --git a/tests/expected/waitpid/pidfd-ino-mixed-pid-formats b/tests/expected/waitpid/pidfd-ino-mixed-pid-formats
new file mode 100644 (file)
index 0000000..5f1d0ec
--- /dev/null
+++ b/tests/expected/waitpid/pidfd-ino-mixed-pid-formats
@@ -0,0 +1,2 @@
+2
+1

diff --git a/tests/expected/waitpid/pidfd-ino-mixed-pid-formats.err b/tests/expected/waitpid/pidfd-ino-mixed-pid-formats.err
new file mode 100644 (file)
index 0000000..573541a
--- /dev/null
+++ b/tests/expected/waitpid/pidfd-ino-mixed-pid-formats.err
@@ -0,0 +1 @@
+0

diff --git a/tests/expected/waitpid/pidfd-ino-one-pid-arg b/tests/expected/waitpid/pidfd-ino-one-pid-arg
new file mode 100644 (file)
index 0000000..d00491f
--- /dev/null
+++ b/tests/expected/waitpid/pidfd-ino-one-pid-arg
@@ -0,0 +1 @@
+1

diff --git a/tests/expected/waitpid/pidfd-ino-one-pid-arg.err b/tests/expected/waitpid/pidfd-ino-one-pid-arg.err
new file mode 100644 (file)
index 0000000..573541a
--- /dev/null
+++ b/tests/expected/waitpid/pidfd-ino-one-pid-arg.err
@@ -0,0 +1 @@
+0

diff --git a/tests/ts/waitpid/pidfd-ino b/tests/ts/waitpid/pidfd-ino
new file mode 100755 (executable)
index 0000000..e572165
--- /dev/null
+++ b/tests/ts/waitpid/pidfd-ino
@@ -0,0 +1,64 @@
+#!/bin/bash
+
+# This file is part of util-linux.
+#
+# This file 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 2 of the License, or
+# (at your option) any later version.
+#
+# This file 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.
+#
+# Copyright (C) 2026 Christian Goeschel Ndjomouo <cgoesc2@wgu.edu>
+
+TS_TOPDIR="${0%/*}/../.."
+TS_DESC="pidfd-ino"
+
+. "$TS_TOPDIR/functions.sh"
+ts_init "$*"
+
+# The pidfs was only introduced in kernel version 6.9,
+# which means we cannot get a valid pidfd from earlier versions,
+# so we can confidently anticipate the test failure.
+if ts_kernel_ver_lt 6 9; then
+       TS_KNOWN_FAIL="yes"
+fi
+
+ts_check_test_command "$TS_CMD_WAITPID"
+ts_check_test_command "$TS_CMD_GETINO"
+
+ts_init_subtest one-pid-arg
+
+(sleep 0.5; echo 1 >> "$TS_OUTPUT") &
+PID="$( $TS_CMD_GETINO -p $! 2>/dev/null )"
+
+"$TS_CMD_WAITPID" "$PID" >> "$TS_OUTPUT" 2>> "$TS_ERRLOG"
+echo $? >> "$TS_ERRLOG"
+
+ts_finalize_subtest
+
+ts_init_subtest mixed-pid-formats
+
+(sleep 0.6; echo 1 >> "$TS_OUTPUT") &
+PID1="$( $TS_CMD_GETINO -p $! 2>/dev/null )"
+
+(sleep 0.2; echo 2 >> "$TS_OUTPUT") &
+PID2="$!"
+
+"$TS_CMD_WAITPID" "$PID1" "$PID2" >> "$TS_OUTPUT" 2>> "$TS_ERRLOG"
+echo $? >> "$TS_ERRLOG"
+
+ts_finalize_subtest
+
+ts_init_subtest count
+(sleep 0.2; echo 1 >> "$TS_OUTPUT") &
+BG1="$( $TS_CMD_GETINO -p $! 2>/dev/null )"
+
+"$TS_CMD_WAITPID" -c 1 1 "$BG1" >> "$TS_OUTPUT" 2>> "$TS_ERRLOG"
+echo $? >> "$TS_ERRLOG"
+ts_finalize_subtest
+
+ts_finalize