HBASE-29223 Extended TestInfoServers.testInfoServersRedirect

so that we test that `/master-status` redirects to `/master.jsp`.

Author: PDavid

hbase-server/src/test/java/org/apache/hadoop/hbase/TestInfoServers.java

@@ -94,6 +94,7 @@ public void testInfoServersRedirect() throws Exception {
     UTIL.getConnection().getTable(TableName.META_TABLE_NAME).close();
     int port = UTIL.getHBaseCluster().getMaster().getInfoServer().getPort();
     assertContainsContent(new URL("http://localhost:" + port + "/index.html"), "master.jsp");
+    assertContainsContent(new URL("http://localhost:" + port + "/master-status"), "master.jsp");
     port = UTIL.getHBaseCluster().getRegionServerThreads().get(0).getRegionServer().getInfoServer()
       .getPort();
     assertContainsContent(new URL("http://localhost:" + port + "/index.html"), "rs-status");