diff --git a/etc/mtree/BSD.tests.dist b/etc/mtree/BSD.tests.dist
--- a/etc/mtree/BSD.tests.dist
+++ b/etc/mtree/BSD.tests.dist
@@ -860,6 +860,8 @@
         ..
         posixshm
         ..
+        racct
+        ..
         sys
         ..
         vfs
diff --git a/tests/sys/Makefile b/tests/sys/Makefile
--- a/tests/sys/Makefile
+++ b/tests/sys/Makefile
@@ -28,6 +28,7 @@
 TESTS_SUBDIRS+=		netpfil
 TESTS_SUBDIRS+=		opencrypto
 TESTS_SUBDIRS+=		posixshm
+TESTS_SUBDIRS+=		racct
 TESTS_SUBDIRS+=		sys
 TESTS_SUBDIRS+=		vfs
 TESTS_SUBDIRS+=		vm
diff --git a/tests/sys/racct/Makefile b/tests/sys/racct/Makefile
new file mode 100644
--- /dev/null
+++ b/tests/sys/racct/Makefile
@@ -0,0 +1,16 @@
+PACKAGE=	tests
+
+TESTSDIR=	${TESTSBASE}/sys/racct
+
+BINDIR=		${TESTSDIR}
+
+ATF_TESTS_SH+=	racct_jail_shm \
+		racct_jail_cpu \
+		racct_jail_proc
+
+PROGS+=		loop \
+		manyforks
+
+${PACKAGE}FILES+=	utils.subr
+
+.include <bsd.test.mk>
diff --git a/tests/sys/racct/loop.c b/tests/sys/racct/loop.c
new file mode 100644
--- /dev/null
+++ b/tests/sys/racct/loop.c
@@ -0,0 +1,43 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2021 The FreeBSD Foundation
+ *
+ * This software was developed by Cyril Zhang under sponsorship from
+ * the FreeBSD Foundation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/time.h>
+#include <stdlib.h>
+
+int
+main()
+{
+	struct timeval zero = { 0, 0 };
+	struct timeval three = { 3, 0 };
+	struct itimerval timer = { zero, three };
+	setitimer(ITIMER_REAL, &timer, NULL);
+	for (;;)
+		system("true");
+}
diff --git a/tests/sys/racct/manyforks.c b/tests/sys/racct/manyforks.c
new file mode 100644
--- /dev/null
+++ b/tests/sys/racct/manyforks.c
@@ -0,0 +1,61 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2021 The FreeBSD Foundation
+ *
+ * This software was developed by Cyril Zhang under sponsorship from
+ * the FreeBSD Foundation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <stdlib.h>
+#include <unistd.h>
+
+static void
+fork_and_handle(int fail)
+{
+	pid_t pid = fork();
+	if (pid == 0) {
+		usleep(2000000);
+		exit(0);
+	}
+	else if (fail) {
+		exit(!(pid == -1));
+	}
+	else if (pid == -1) {
+		exit(1);
+	}
+}
+
+int
+main()
+{
+	/*
+	 * Fork 5 times successfully,
+	 * 1 time unsuccessfully.
+	 */
+	for (int i = 0; i < 5; ++i) {
+		fork_and_handle(0);
+	}
+	fork_and_handle(1);
+}
diff --git a/tests/sys/racct/racct_jail_cpu.sh b/tests/sys/racct/racct_jail_cpu.sh
new file mode 100644
--- /dev/null
+++ b/tests/sys/racct/racct_jail_cpu.sh
@@ -0,0 +1,66 @@
+#-
+# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+#
+# Copyright (c) 2021 The FreeBSD Foundation
+#
+# This software was developed by Cyril Zhang under sponsorship from
+# the FreeBSD Foundation.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+. $(atf_get_srcdir)/utils.subr
+
+atf_test_case racct_cpu cleanup
+racct_cpu_head()
+{
+	atf_set "descr" "Tests pcpu and cputime for a jail racct."
+	atf_set "require.user" "root"
+}
+racct_cpu_body()
+{
+	# This test checks pctcpu and cputime at once,
+	# in order to avoid running the 3s loop twice.
+	racct_mkjail myjail
+	jexec myjail $(atf_get_srcdir)/loop &
+	sleep 2
+	pcpu=$(rctl -u jail:myjail | grep "pcpu" | sed 's/.*=//')
+	sleep 2
+	cputime=$(rctl -u jail:myjail | grep "cputime" | sed 's/.*=//')
+	# We'll give a very large tolerance for pcpu,
+	# due to the decay factor involved in its calculation.
+	# cputime may be rounded down to 2 but should
+	# not exceed 3.
+	if [ $cputime -lt 2 ] || [ $cputime -gt 3 ] || [ $pcpu -lt 60 ] || [ $pcpu -gt 140 ]; then
+		atf_fail "expected pcpu: ~100, actual: $pcpu | expected cputime: ~3, actual: $cputime"
+	fi
+
+}
+racct_cpu_cleanup()
+{
+	racct_cleanup
+}
+
+atf_init_test_cases()
+{
+	atf_add_test_case racct_cpu
+}
diff --git a/tests/sys/racct/racct_jail_proc.sh b/tests/sys/racct/racct_jail_proc.sh
new file mode 100644
--- /dev/null
+++ b/tests/sys/racct/racct_jail_proc.sh
@@ -0,0 +1,55 @@
+#-
+# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+#
+# Copyright (c) 2021 The FreeBSD Foundation
+#
+# This software was developed by Cyril Zhang under sponsorship from
+# the FreeBSD Foundation.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+. $(atf_get_srcdir)/utils.subr
+
+atf_test_case racct_max_proc cleanup
+racct_max_proc_head()
+{
+	atf_set "descr" "Tests maxproc for a jail racct."
+	atf_set "require.user" "root"
+}
+racct_max_proc_body()
+{
+	racct_mkjail myjail
+	rctl -a "jail:myjail:maxproc:deny=5"
+
+	atf_check -s exit:0 "$(atf_get_srcdir)/manyforks"
+}
+racct_max_proc_cleanup()
+{
+	rctl -r "jail:myjail:maxproc:deny=5"
+	racct_cleanup
+}
+
+atf_init_test_cases()
+{
+	atf_add_test_case racct_max_proc
+}
diff --git a/tests/sys/racct/racct_jail_shm.sh b/tests/sys/racct/racct_jail_shm.sh
new file mode 100644
--- /dev/null
+++ b/tests/sys/racct/racct_jail_shm.sh
@@ -0,0 +1,158 @@
+#-
+# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+#
+# Copyright (c) 2021 The FreeBSD Foundation
+#
+# This software was developed by Cyril Zhang under sponsorship from
+# the FreeBSD Foundation.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+. $(atf_get_srcdir)/utils.subr
+
+atf_test_case racct_shm_count cleanup
+racct_shm_count_head()
+{
+	atf_set "descr" "Tests nshm for a jail racct."
+	atf_set "require.user" "root"
+}
+racct_shm_count_body()
+{
+	racct_mkjail myjail
+	rctl -a "jail:myjail:nshm:deny=20"
+
+	racct_make_objects myjail 20
+	racct_make_forbidden_object myjail 21
+	racct_remove_objects myjail 20
+	racct_make_objects myjail 20
+	racct_make_forbidden_object myjail 21
+}
+racct_shm_count_cleanup()
+{
+	rctl -r "jail:myjail:nshm:deny=20"
+	# This is due to a bug in posix shared memory objects, and
+	# is subject for removal.
+	# Removing the shared memory objects should not be necessary.
+	racct_remove_objects myjail 21
+	racct_cleanup
+}
+
+atf_test_case racct_shm_size cleanup
+racct_shm_size_head()
+{
+	atf_set "descr" "Tests shmsize for a jail racct."
+	atf_set "require.user" "root"
+}
+racct_shm_size_body()
+{
+	racct_mkjail myjail
+	rctl -a "jail:myjail:shmsize:deny=10000"
+
+	racct_make_objects myjail 20
+	racct_truncate_objects myjail 19 512
+	racct_truncate_forbidden_object myjail 20 512
+	racct_truncate_objects myjail 19 0
+	racct_truncate_objects myjail 19 512
+	racct_truncate_forbidden_object myjail 20 512
+}
+racct_shm_size_cleanup()
+{
+	rctl -r "jail:myjail:shmsize:deny=10000"
+	# This is due to a bug in posix shared memory objects, and
+	# is subject for removal.
+	# Removing the shared memory objects should not be necessary.
+	racct_remove_objects myjail 20
+	racct_cleanup
+}
+
+racct_mkjail()
+{
+	jailname=$1
+	jail -c name=${jailname} persist
+	echo $jailname >> created_jails.lst
+}
+racct_cleanup()
+{
+	if [ -f created_jails.lst ]
+	then
+		for jailname in `cat created_jails.lst`
+		do
+			jail -r ${jailname}
+		done
+		rm created_jails.lst
+	fi
+}
+
+racct_make_objects()
+{
+	local jailname max
+	jailname=$1
+	max=$2
+	for i in $(seq 1 $max); do
+		atf_check -s exit:0 jexec "$jailname" posixshmcontrol create "/$jailname$i"
+	done
+}
+
+racct_make_forbidden_object()
+{
+	local jailname i
+	jailname=$1
+	i=$2
+	atf_check -s exit:1 -e ignore jexec "$jailname" posixshmcontrol create "/$jailname$i"
+}
+
+racct_truncate_objects()
+{
+	local jailname max size
+	jailname=$1
+	max=$2
+	size=$3
+	for i in $(seq 1 $max); do
+		atf_check -s exit:0 jexec "$jailname" posixshmcontrol truncate -s "$size" "/$jailname$i"
+	done
+}
+
+racct_truncate_forbidden_object()
+{
+	local jailname i size
+	jailname=$1
+	i=$2
+	size=$3
+	atf_check -s exit:1 -e ignore jexec "$jailname" posixshmcontrol truncate -s "$size" "/$jailname$i"
+}
+
+racct_remove_objects()
+{
+	local jailname max
+	jailname=$1
+	max=$2
+	for i in $(seq 1 $max); do
+		jexec $jailname posixshmcontrol rm "/$jailname$i"
+	done
+}
+
+atf_init_test_cases()
+{
+	atf_add_test_case racct_shm_count
+	atf_add_test_case racct_shm_size
+}
diff --git a/tests/sys/racct/utils.subr b/tests/sys/racct/utils.subr
new file mode 100644
--- /dev/null
+++ b/tests/sys/racct/utils.subr
@@ -0,0 +1,47 @@
+#-
+# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+#
+# Copyright (c) 2021 The FreeBSD Foundation
+#
+# This software was developed by Cyril Zhang under sponsorship from
+# the FreeBSD Foundation.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+racct_mkjail()
+{
+	jailname=$1
+	jail -c name=${jailname} persist
+	echo $jailname >> created_jails.lst
+}
+racct_cleanup()
+{
+	if [ -f created_jails.lst ]
+	then
+		for jailname in `cat created_jails.lst`
+		do
+			jail -r ${jailname}
+		done
+		rm created_jails.lst
+	fi
+}