ZTS: Add zfs/zpool JSON sanity tests

Run basic JSON validation tests on the new `zfs|zpool -j` output.

Reviewed-by: Ameer Hamza <ahamza@ixsystems.com>
Reviewed-by: Umer Saleem <usaleem@ixsystems.com>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #16217

tests/runfiles/common.run

@@ -153,6 +153,10 @@ tests = [ 'clean_mirror_001_pos', 'clean_mirror_002_pos',
     'clean_mirror_003_pos', 'clean_mirror_004_pos']
 tags = ['functional', 'clean_mirror']
 
+[tests/functional/cli_root/json]
+tests = ['json_sanity']
+tags = ['functional', 'cli_root', 'json']
+
 [tests/functional/cli_root/zinject]
 tests = ['zinject_args']
 pre =

tests/zfs-tests/include/commands.cfg

@@ -46,6 +46,7 @@ export SYSTEM_FILES_COMMON='awk
     hostname
     id
     iostat
+    jq
     kill
     ksh
     ldd

tests/zfs-tests/tests/Makefile.am

@@ -606,6 +606,9 @@ nobase_dist_datadir_zfs_tests_tests_SCRIPTS += \
 	functional/clean_mirror/clean_mirror_004_pos.ksh \
 	functional/clean_mirror/cleanup.ksh \
 	functional/clean_mirror/setup.ksh \
+	functional/cli_root/json/cleanup.ksh \
+	functional/cli_root/json/setup.ksh \
+	functional/cli_root/json/json_sanity.ksh \
 	functional/cli_root/zinject/zinject_args.ksh \
 	functional/cli_root/zdb/zdb_002_pos.ksh \
 	functional/cli_root/zdb/zdb_003_pos.ksh \

tests/zfs-tests/tests/functional/cli_root/json/cleanup.ksh

@@ -0,0 +1,31 @@
+#!/bin/ksh -p
+#
+# CDDL HEADER START
+#
+# The contents of this file are subject to the terms of the
+# Common Development and Distribution License (the "License").
+# You may not use this file except in compliance with the License.
+#
+# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+# or https://opensource.org/licenses/CDDL-1.0.
+# See the License for the specific language governing permissions
+# and limitations under the License.
+#
+# When distributing Covered Code, include this CDDL HEADER in each
+# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+# If applicable, add the following below this CDDL HEADER, with the
+# fields enclosed by brackets "[]" replaced with your own identifying
+# information: Portions Copyright [yyyy] [name of copyright owner]
+#
+# CDDL HEADER END
+#
+
+# Copyright (c) 2024 by Lawrence Livermore National Security, LLC.
+
+. $STF_SUITE/include/libtest.shlib
+
+zpool destroy testpool1
+zpool destroy testpool2
+
+rm $TESTDIR/file{1..28}
+rmdir $TESTDIR

tests/zfs-tests/tests/functional/cli_root/json/json_sanity.ksh

@@ -0,0 +1,57 @@
+#!/bin/ksh -p
+#
+# CDDL HEADER START
+#
+# The contents of this file are subject to the terms of the
+# Common Development and Distribution License (the "License").
+# You may not use this file except in compliance with the License.
+#
+# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+# or https://opensource.org/licenses/CDDL-1.0.
+# See the License for the specific language governing permissions
+# and limitations under the License.
+#
+# When distributing Covered Code, include this CDDL HEADER in each
+# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+# If applicable, add the following below this CDDL HEADER, with the
+# fields enclosed by brackets "[]" replaced with your own identifying
+# information: Portions Copyright [yyyy] [name of copyright owner]
+#
+# CDDL HEADER END
+
+# Copyright (c) 2024 by Lawrence Livermore National Security, LLC.
+
+. $STF_SUITE/include/libtest.shlib
+
+#
+# DESCRIPTION:
+# Basic sanity check for valid JSON from zfs & zpool commands.
+#
+# STRATEGY:
+# 1. Run different zfs/zpool -j commands and check for valid JSON
+
+list=(
+    "zpool status -j -g --json-int --json-flat-vdevs --json-pool-key-guid"
+    "zpool status -p -j -g --json-int --json-flat-vdevs --json-pool-key-guid"
+    "zpool status -j -c upath"
+    "zpool status -j"
+    "zpool status -j testpool1"
+    "zpool list -j"
+    "zpool list -j -g"
+    "zpool list -j -o fragmentation"
+    "zpool get -j size"
+    "zpool get -j all"
+    "zpool version -j"
+    "zfs list -j"
+    "zfs list -j testpool1"
+    "zfs get -j all"
+    "zfs get -j available"
+    "zfs mount -j"
+    "zfs version -j"
+)
+
+for cmd in "${list[@]}" ; do
+    log_must eval "$cmd | jq > /dev/null" 
+done
+
+log_pass "zpool and zfs commands outputted valid JSON"

tests/zfs-tests/tests/functional/cli_root/json/setup.ksh

@@ -0,0 +1,50 @@
+#!/bin/ksh -p
+#
+# CDDL HEADER START
+#
+# The contents of this file are subject to the terms of the
+# Common Development and Distribution License (the "License").
+# You may not use this file except in compliance with the License.
+#
+# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+# or https://opensource.org/licenses/CDDL-1.0.
+# See the License for the specific language governing permissions
+# and limitations under the License.
+#
+# When distributing Covered Code, include this CDDL HEADER in each
+# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+# If applicable, add the following below this CDDL HEADER, with the
+# fields enclosed by brackets "[]" replaced with your own identifying
+# information: Portions Copyright [yyyy] [name of copyright owner]
+#
+# CDDL HEADER END
+#
+
+# Copyright (c) 2024 by Lawrence Livermore National Security, LLC.
+
+. $STF_SUITE/include/libtest.shlib
+
+# Sanity check that 'testpool1' or 'testpool2' don't exist
+log_mustnot zpool status -j | \
+	jq -e '.pools | has("testpool1") or has("testpool2")' &> /dev/null
+
+mkdir -p $TESTDIR
+truncate -s 80M $TESTDIR/file{1..28}
+
+DISK=${DISKS%% *}
+
+# Create complex pool configs to exercise JSON
+zpool create -f testpool1 draid $TESTDIR/file{1..10} \
+	special $DISK \
+	dedup $TESTDIR/file11 \
+	special $TESTDIR/file12 \
+	cache $TESTDIR/file13 \
+	log $TESTDIR/file14
+
+zpool create -f testpool2 mirror $TESTDIR/file{15,16} \
+	raidz1 $TESTDIR/file{17,18,19} \
+	cache $TESTDIR/file20 \
+	log $TESTDIR/file21 \
+	special mirror $TESTDIR/file{22,23} \
+	dedup mirror $TESTDIR/file{24,25} \
+	spare $TESTDIR/file{26,27,28}