diff --git a/apps/openstacknode/app/src/test/java/org/onosproject/openstacknode/codec/OpenstackAuthJsonMatcher.java b/apps/openstacknode/app/src/test/java/org/onosproject/openstacknode/codec/OpenstackAuthJsonMatcher.java
new file mode 100644
index 0000000..055fbe6
--- /dev/null
+++ b/apps/openstacknode/app/src/test/java/org/onosproject/openstacknode/codec/OpenstackAuthJsonMatcher.java
@@ -0,0 +1,118 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.openstacknode.codec;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import org.hamcrest.Description;
+import org.hamcrest.TypeSafeDiagnosingMatcher;
+import org.onosproject.openstacknode.api.OpenstackAuth;
+
+/**
+ * Hamcrest matcher for opensatck auth.
+ */
+public final class OpenstackAuthJsonMatcher extends TypeSafeDiagnosingMatcher<JsonNode> {
+
+    private final OpenstackAuth auth;
+
+    private static final String VERSION = "version";
+    private static final String PORT = "port";
+    private static final String PROTOCOL = "protocol";
+    private static final String USERNAME = "username";
+    private static final String PASSWORD = "password";
+    private static final String PROJECT = "project";
+    private static final String PERSPECTIVE = "perspective";
+
+    private OpenstackAuthJsonMatcher(OpenstackAuth auth) {
+        this.auth = auth;
+    }
+
+    @Override
+    protected boolean matchesSafely(JsonNode jsonNode, Description description) {
+
+        // check version
+        String jsonVersion = jsonNode.get(VERSION).asText();
+        String version = auth.version();
+        if (!jsonVersion.equals(version)) {
+            description.appendText("version was " + jsonVersion);
+            return false;
+        }
+
+        // check port
+        Integer jsonPort = jsonNode.get(PORT).asInt();
+        Integer port = auth.port();
+        if (!jsonPort.equals(port)) {
+            description.appendText("port was " + jsonPort);
+            return false;
+        }
+
+        // check protocol
+        String jsonProtocol = jsonNode.get(PROTOCOL).asText();
+        String protocol = auth.protocol().name();
+        if (!jsonProtocol.equals(protocol)) {
+            description.appendText("protocol was " + jsonProtocol);
+            return false;
+        }
+
+        // check username
+        String jsonUsername = jsonNode.get(USERNAME).asText();
+        String username = auth.username();
+        if (!jsonUsername.equals(username)) {
+            description.appendText("username was " + jsonUsername);
+            return false;
+        }
+
+        // check password
+        String jsonPassword = jsonNode.get(PASSWORD).asText();
+        String password = auth.password();
+        if (!jsonPassword.equals(password)) {
+            description.appendText("password was " + jsonPassword);
+            return false;
+        }
+
+        // check project
+        String jsonProject = jsonNode.get(PROJECT).asText();
+        String project = auth.project();
+        if (!jsonProject.equals(project)) {
+            description.appendText("project was " + jsonProject);
+            return false;
+        }
+
+        // check perspective
+        String jsonPerspective = jsonNode.get(PERSPECTIVE).asText();
+        String perspective = auth.perspective().name();
+        if (!jsonPerspective.equals(perspective)) {
+            description.appendText("perspective was " + jsonPerspective);
+            return false;
+        }
+
+        return true;
+    }
+
+    @Override
+    public void describeTo(Description description) {
+        description.appendText(auth.toString());
+    }
+
+    /**
+     * Factory to allocate an openstack auth matcher.
+     *
+     * @param auth openstack auth object we are looking for
+     * @return matcher
+     */
+    public static OpenstackAuthJsonMatcher matchOpenstackAuth(OpenstackAuth auth) {
+        return new OpenstackAuthJsonMatcher(auth);
+    }
+}