diff --git a/tests/integration/cgroups.bats b/tests/integration/cgroups.bats
index 89c63f398..914ec499d 100644
--- a/tests/integration/cgroups.bats
+++ b/tests/integration/cgroups.bats
@@ -87,7 +87,7 @@ function setup() {
 
 	runc exec test_cgroups_group cat /proc/self/cgroup
 	[ "$status" -eq 0 ]
-	[[ ${lines[0]} == "0::/" ]]
+	[[ ${lines[0]} = "0::/" ]]
 
 	runc exec test_cgroups_group mkdir /sys/fs/cgroup/foo
 	[ "$status" -eq 0 ]
@@ -99,7 +99,7 @@ function setup() {
 	# because we haven't enabled any domain controller.
 	runc exec test_cgroups_group cat /proc/self/cgroup
 	[ "$status" -eq 0 ]
-	[[ ${lines[0]} == "0::/" ]]
+	[[ ${lines[0]} = "0::/" ]]
 
 	# turn on a domain controller (memory)
 	runc exec test_cgroups_group sh -euxc 'echo $$ > /sys/fs/cgroup/foo/cgroup.procs; echo +memory > /sys/fs/cgroup/cgroup.subtree_control'
@@ -109,7 +109,7 @@ function setup() {
 	# falls back to "/foo".
 	runc exec test_cgroups_group cat /proc/self/cgroup
 	[ "$status" -eq 0 ]
-	[[ ${lines[0]} == "0::/foo" ]]
+	[[ ${lines[0]} = "0::/foo" ]]
 
 	# teardown: remove "/foo"
 	# shellcheck disable=SC2016
@@ -301,7 +301,7 @@ function setup() {
 	[[ $exec_cgroup == *"runc-cgroups-integration-test"* ]]
 
 	# check that the cgroups v2 path is the same for both processes
-	[[ "$run_cgroup" == "$exec_cgroup" ]]
+	[ "$run_cgroup" = "$exec_cgroup" ]
 }
 
 @test "runc exec should refuse a paused container" {
diff --git a/tests/integration/checkpoint.bats b/tests/integration/checkpoint.bats
index 98b112dc6..615ef8cb6 100644
--- a/tests/integration/checkpoint.bats
+++ b/tests/integration/checkpoint.bats
@@ -98,7 +98,7 @@ function runc_restore_with_pipes() {
 
 	runc exec --cwd /bin "$name" echo ok
 	[ "$status" -eq 0 ]
-	[[ ${output} == "ok" ]]
+	[ "$output" = "ok" ]
 }
 
 function simple_cr() {
diff --git a/tests/integration/create.bats b/tests/integration/create.bats
index afa9f9dfb..938ac8b63 100644
--- a/tests/integration/create.bats
+++ b/tests/integration/create.bats
@@ -50,7 +50,7 @@ function teardown() {
 	# check pid.txt was generated
 	[ -e pid.txt ]
 
-	[[ $(cat pid.txt) == $(__runc state test_busybox | jq '.pid') ]]
+	[[ $(cat pid.txt) = $(__runc state test_busybox | jq '.pid') ]]
 
 	# start the command
 	runc start test_busybox
@@ -73,7 +73,7 @@ function teardown() {
 	# check pid.txt was generated
 	[ -e pid.txt ]
 
-	[[ $(cat pid.txt) == $(__runc state test_busybox | jq '.pid') ]]
+	[[ $(cat pid.txt) = $(__runc state test_busybox | jq '.pid') ]]
 
 	# start the command
 	runc start test_busybox
diff --git a/tests/integration/exec.bats b/tests/integration/exec.bats
index 140cd1810..16a972cfa 100644
--- a/tests/integration/exec.bats
+++ b/tests/integration/exec.bats
@@ -140,8 +140,7 @@ function teardown() {
 
 	runc exec --user 1000:1000 --additional-gids 100 --additional-gids 65534 test_busybox id -G
 	[ "$status" -eq 0 ]
-
-	[[ ${output} == "1000 100 65534" ]]
+	[ "$output" = "1000 100 65534" ]
 }
 
 @test "runc exec --preserve-fds" {
@@ -154,7 +153,7 @@ function teardown() {
 	exec 4<preserve-fds.test
 	runc exec --preserve-fds=2 test_busybox cat /proc/self/fd/4
 	[ "$status" -eq 0 ]
-	[[ "${output}" == "hello" ]]
+	[ "${output}" = "hello" ]
 }
 
 function check_exec_debug() {
diff --git a/tests/integration/helpers.bash b/tests/integration/helpers.bash
index 90f92bdd7..2bd743c65 100644
--- a/tests/integration/helpers.bash
+++ b/tests/integration/helpers.bash
@@ -152,7 +152,7 @@ function create_parent() {
 		"$SD_HELPER" --parent machine.slice start "$SD_PARENT_NAME"
 	else
 		[ ! -v REL_PARENT_PATH ] && return
-		if [ "$CGROUP_UNIFIED" == "yes" ]; then
+		if [ "$CGROUP_UNIFIED" = "yes" ]; then
 			mkdir "/sys/fs/cgroup$REL_PARENT_PATH"
 		else
 			local subsys
@@ -172,7 +172,7 @@ function remove_parent() {
 		"$SD_HELPER" --parent machine.slice stop "$SD_PARENT_NAME"
 	else
 		[ ! -v REL_PARENT_PATH ] && return
-		if [ "$CGROUP_UNIFIED" == "yes" ]; then
+		if [ "$CGROUP_UNIFIED" = "yes" ]; then
 			rmdir "/sys/fs/cgroup/$REL_PARENT_PATH"
 		else
 			local subsys
@@ -229,7 +229,7 @@ function set_cgroups_path() {
 	fi
 
 	# Absolute path to container's cgroup v2.
-	if [ "$CGROUP_UNIFIED" == "yes" ]; then
+	if [ "$CGROUP_UNIFIED" = "yes" ]; then
 		CGROUP_PATH=${CGROUP_BASE_PATH}${REL_CGROUPS_PATH}
 	fi
 
@@ -498,7 +498,7 @@ function wait_for_container() {
 function testcontainer() {
 	# test state of container
 	runc state "$1"
-	if [ "$2" == "checkpointed" ]; then
+	if [ "$2" = "checkpointed" ]; then
 		[ "$status" -eq 1 ]
 		return
 	fi
diff --git a/tests/integration/list.bats b/tests/integration/list.bats
index a22dd19a4..b8821bc70 100644
--- a/tests/integration/list.bats
+++ b/tests/integration/list.bats
@@ -35,9 +35,9 @@ function teardown() {
 
 	ROOT=$ALT_ROOT runc list -q
 	[ "$status" -eq 0 ]
-	[[ "${lines[0]}" == "test_box1" ]]
-	[[ "${lines[1]}" == "test_box2" ]]
-	[[ "${lines[2]}" == "test_box3" ]]
+	[ "${lines[0]}" = "test_box1" ]
+	[ "${lines[1]}" = "test_box2" ]
+	[ "${lines[2]}" = "test_box3" ]
 
 	ROOT=$ALT_ROOT runc list --format table
 	[ "$status" -eq 0 ]
diff --git a/tests/integration/mask.bats b/tests/integration/mask.bats
index b5f296756..4bf834ef9 100644
--- a/tests/integration/mask.bats
+++ b/tests/integration/mask.bats
@@ -24,7 +24,7 @@ function teardown() {
 
 	runc exec test_busybox cat /testfile
 	[ "$status" -eq 0 ]
-	[[ "${output}" == "" ]]
+	[ -z "$output" ]
 
 	runc exec test_busybox rm -f /testfile
 	[ "$status" -eq 1 ]
@@ -42,7 +42,7 @@ function teardown() {
 
 	runc exec test_busybox ls /testdir
 	[ "$status" -eq 0 ]
-	[[ "${output}" == "" ]]
+	[ -z "$output" ]
 
 	runc exec test_busybox touch /testdir/foo
 	[ "$status" -eq 1 ]
diff --git a/tests/rootless.sh b/tests/rootless.sh
index f6872fad0..83be248a1 100755
--- a/tests/rootless.sh
+++ b/tests/rootless.sh
@@ -112,9 +112,9 @@ function enable_cgroup() {
 		# for runc to set up the hierarchy. XXX: This really shouldn't be
 		# necessary, and might actually be a bug in our impl of cgroup
 		# handling.
-		[[ "$cg" == "cpuset" ]] && chown rootless:rootless "$CGROUP_MOUNT/$cg$CGROUP_PATH/cpuset."{cpus,mems}
+		[ "$cg" = "cpuset" ] && chown rootless:rootless "$CGROUP_MOUNT/$cg$CGROUP_PATH/cpuset."{cpus,mems}
 		# The following is required by "update rt period and runtime".
-		if [[ "$cg" == "cpu" ]]; then
+		if [ "$cg" = "cpu" ]; then
 			if [[ -e "$CGROUP_MOUNT/$cg$CGROUP_PATH/cpu.rt_period_us" ]]; then
 				chown rootless:rootless "$CGROUP_MOUNT/$cg$CGROUP_PATH/cpu.rt_period_us"
 			fi