diff --git a/tests/fixtures/centos-7.7/arp-a.out b/tests/fixtures/centos-7.7/arp-a.out
new file mode 100644
index 00000000..4c26f302
--- /dev/null
+++ b/tests/fixtures/centos-7.7/arp-a.out
@@ -0,0 +1,3 @@
+gateway (192.168.71.2) at 00:50:56:f7:4a:fc [ether] on ens33
+? (192.168.71.1) at 00:50:56:c0:00:08 [ether] on ens33
+? (192.168.71.254) at 00:50:56:fe:7a:b4 [ether] on ens33
diff --git a/tests/fixtures/create_fixtures.sh b/tests/fixtures/create_fixtures.sh
index 2baf8cbe..843fc9e9 100644
--- a/tests/fixtures/create_fixtures.sh
+++ b/tests/fixtures/create_fixtures.sh
@@ -2,6 +2,7 @@
 
 arp      > arp.out
 arp -v   > arp-v.out
+arp -a   > arp-a.out
 df       > df.out
 df -h    > df-h.out
 env      > env.out
diff --git a/tests/fixtures/ubuntu-18.04/arp-a.out b/tests/fixtures/ubuntu-18.04/arp-a.out
new file mode 100644
index 00000000..8849d641
--- /dev/null
+++ b/tests/fixtures/ubuntu-18.04/arp-a.out
@@ -0,0 +1,3 @@
+? (192.168.71.1) at 00:50:56:c0:00:08 [ether] on ens33
+? (192.168.71.254) at 00:50:56:fe:7a:b4 [ether] on ens33
+_gateway (192.168.71.2) at 00:50:56:f7:4a:fc [ether] on ens33