1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * https://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.commons.net.telnet;
18
19 import static org.junit.jupiter.api.Assertions.assertTrue;
20
21 import java.io.InputStream;
22 import java.io.OutputStream;
23
24 import org.junit.jupiter.api.BeforeEach;
25 import org.junit.jupiter.api.Test;
26
27 /**
28 * JUnit functional test for TelnetClient. Connects to the weather forecast service rainmaker.wunderground.com and asks for Los Angeles forecast.
29 */
30 class TelnetClientFunctionalTest {
31 protected TelnetClient tc1;
32
33 /**
34 * test setUp
35 */
36 @BeforeEach
37 protected void setUp() {
38 tc1 = new TelnetClient();
39 }
40
41 /*
42 * Do the functional test: - connect to the weather service - press return on the first menu - send LAX on the second menu - send X to exit
43 */
44 @Test
45 void testFunctionalTest() throws Exception {
46 boolean testresult = false;
47 tc1.connect("rainmaker.wunderground.com", 3000);
48
49 try (InputStream is = tc1.getInputStream(); final OutputStream os = tc1.getOutputStream()) {
50
51 boolean cont = waitForString(is, "Return to continue:", 30000);
52 if (cont) {
53 os.write("\n".getBytes());
54 os.flush();
55 cont = waitForString(is, "city code--", 30000);
56 }
57 if (cont) {
58 os.write("LAX\n".getBytes());
59 os.flush();
60 cont = waitForString(is, "Los Angeles", 30000);
61 }
62 if (cont) {
63 cont = waitForString(is, "X to exit:", 30000);
64 }
65 if (cont) {
66 os.write("X\n".getBytes());
67 os.flush();
68 tc1.disconnect();
69 testresult = true;
70 }
71
72 assertTrue(testresult);
73 }
74 }
75
76 /*
77 * Helper method. waits for a string with timeout
78 */
79 public boolean waitForString(final InputStream is, final String end, final long timeout) throws Exception {
80 final byte[] buffer = new byte[32];
81 final long starttime = System.currentTimeMillis();
82
83 String readbytes = "";
84 while (!readbytes.contains(end) && System.currentTimeMillis() - starttime < timeout) {
85 if (is.available() > 0) {
86 final int retRead = is.read(buffer);
87 readbytes += new String(buffer, 0, retRead);
88 } else {
89 Thread.sleep(500);
90 }
91 }
92
93 return readbytes.indexOf(end) >= 0;
94 }
95 }