diff --git a/tests/full-test b/tests/full-test
index 967753e6..5fd0dbec 100755
--- a/tests/full-test
+++ b/tests/full-test
@@ -43,7 +43,7 @@ echo "ocserv image was run"
 #wait for ocserv to server
 sleep 5
 
-IP=`$DOCKER inspect $IMAGE_NAME | grep IPAddress | cut -d '"' -f 4`
+get_ip
 if test -z "$IP";then
 	echo "Detected IP is null!"
 	stop
diff --git a/tests/kerberos-test b/tests/kerberos-test
index 1a485255..65c6caa9 100755
--- a/tests/kerberos-test
+++ b/tests/kerberos-test
@@ -56,7 +56,7 @@ echo "ocserv image was run"
 #wait for ocserv to server
 sleep 5
 
-IP=`$DOCKER inspect $IMAGE_NAME | grep IPAddress | cut -d '"' -f 4`
+get_ip
 if test -z "$IP";then
 	echo "Detected IP is null!"
 	$DOCKER inspect $IMAGE_NAME
diff --git a/tests/otp-test b/tests/otp-test
index 32e762d0..47e69d42 100755
--- a/tests/otp-test
+++ b/tests/otp-test
@@ -43,7 +43,7 @@ echo "ocserv image was run"
 #wait for ocserv to server
 sleep 5
 
-IP=`$DOCKER inspect $IMAGE_NAME | grep IPAddress | cut -d '"' -f 4`
+get_ip
 if test -z "$IP";then
 	echo "Detected IP is null!"
 	stop
diff --git a/tests/pam-noauth-test b/tests/pam-noauth-test
index 95e6cb32..71a9fc9d 100755
--- a/tests/pam-noauth-test
+++ b/tests/pam-noauth-test
@@ -43,7 +43,7 @@ echo "ocserv image was run"
 #wait for ocserv to server
 sleep 5
 
-IP=`$DOCKER inspect $IMAGE_NAME | grep IPAddress | cut -d '"' -f 4`
+get_ip
 if test -z "$IP";then
 	echo "Detected IP is null!"
 	stop
diff --git a/tests/pam-test b/tests/pam-test
index 31e6a957..c74626ec 100755
--- a/tests/pam-test
+++ b/tests/pam-test
@@ -43,7 +43,7 @@ echo "ocserv image was run"
 #wait for ocserv to server
 sleep 5
 
-IP=`$DOCKER inspect $IMAGE_NAME | grep IPAddress | cut -d '"' -f 4`
+get_ip
 if test -z "$IP";then
 	echo "Detected IP is null!"
 	stop
diff --git a/tests/proxyproto-test b/tests/proxyproto-test
index 0aaa916b..792db00d 100755
--- a/tests/proxyproto-test
+++ b/tests/proxyproto-test
@@ -43,7 +43,7 @@ echo "ocserv image was run"
 #wait for ocserv to server
 sleep 5
 
-IP=`$DOCKER inspect $IMAGE_NAME | grep IPAddress | cut -d '"' -f 4`
+get_ip
 if test -z "$IP";then
 	echo "Detected IP is null!"
 	stop
diff --git a/tests/proxyproto-unix-test b/tests/proxyproto-unix-test
index 44894a68..fa73627d 100755
--- a/tests/proxyproto-unix-test
+++ b/tests/proxyproto-unix-test
@@ -43,7 +43,7 @@ echo "ocserv image was run"
 #wait for ocserv to server
 sleep 5
 
-IP=`$DOCKER inspect $IMAGE_NAME | grep IPAddress | cut -d '"' -f 4`
+get_ip
 if test -z "$IP";then
 	echo "Detected IP is null!"
 	stop
diff --git a/tests/radius-test b/tests/radius-test
index 832fd5c1..aca65002 100755
--- a/tests/radius-test
+++ b/tests/radius-test
@@ -45,7 +45,7 @@ echo "ocserv image was run"
 #wait for ocserv to server
 sleep 5
 
-IP=`$DOCKER inspect $IMAGE_NAME | grep IPAddress | cut -d '"' -f 4`
+get_ip
 if test -z "$IP";then
 	echo "Detected IP is null!"
 	stop
diff --git a/tests/unix-test b/tests/unix-test
index e21eb2b5..a770b879 100755
--- a/tests/unix-test
+++ b/tests/unix-test
@@ -42,7 +42,7 @@ fi
 #wait for ocserv to server
 sleep 5
 
-IP=`$DOCKER inspect test_unix | grep IPAddress | cut -d '"' -f 4`
+get_ip
 if test -z "$IP";then
 	echo "Detected IP is null!"
 	stop