add console port override test
diff --git a/console/server/src/test/java/org/apache/edgent/test/console/server/HttpServerTestPort.java b/console/server/src/test/java/org/apache/edgent/test/console/server/HttpServerTestPort.java
new file mode 100644
index 0000000..95778bc
--- /dev/null
+++ b/console/server/src/test/java/org/apache/edgent/test/console/server/HttpServerTestPort.java
@@ -0,0 +1,58 @@
+/*
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you 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.apache.edgent.test.console.server;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assume.assumeTrue;
+
+import java.io.IOException;
+import java.net.Socket;
+
+import org.apache.edgent.console.server.HttpServer;
+import org.junit.Test;
+
+/**
+ * This is a separate test because the HttpServer implementation
+ * precludes changing the console port within a jvm instance.
+ */
+public class HttpServerTestPort {
+
+ int getAvailablePort() throws IOException {
+ try (Socket s = new Socket()) {
+ s.bind(null);
+ return s.getLocalPort();
+ }
+ }
+
+ @Test
+ public void overridePortNumber() throws Exception {
+ // count on the OS not immediately reusing an available local port.
+ int port = getAvailablePort();
+ int port2 = getAvailablePort();
+ assumeTrue(port != port2);
+
+ System.setProperty("edgent.console.port", String.valueOf(port));
+ HttpServer myHttpServer = HttpServer.getInstance();
+ myHttpServer.startServer();
+
+ int portNum = myHttpServer.getConsolePortNumber();
+ assertEquals(port, portNum);
+ }
+
+}
