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 *     http://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
18package org.apache.harmony.tests.java.lang;
19
20import java.io.IOException;
21import java.io.InputStream;
22
23import static tests.support.Support_Exec.javaProcessBuilder;
24
25public class Process2Test extends junit.framework.TestCase {
26    /**
27     * java.lang.Process#getInputStream(),
28     *        java.lang.Process#getErrorStream()
29     *        java.lang.Process#getOutputStream()
30     * Tests if these methods return buffered streams.
31     */
32    public void test_streams()
33            throws IOException, InterruptedException {
34        Process p = javaProcessBuilder().start();
35        assertNotNull(p.getInputStream());
36        assertNotNull(p.getErrorStream());
37        assertNotNull(p.getOutputStream());
38    }
39
40    public void test_getErrorStream() {
41        String[] commands = {"sh", "-c", "echo"};
42        Process process = null;
43        try {
44            process = Runtime.getRuntime().exec(commands, null, null);
45            InputStream is = process.getErrorStream();
46            StringBuilder msg = new StringBuilder("");
47            while (true) {
48                int c = is.read();
49                if (c == -1)
50                    break;
51                msg.append((char) c);
52            }
53            assertEquals("", msg.toString());
54        } catch (IOException e) {
55            fail("IOException was thrown.");
56        } finally {
57            if (process != null) {
58                process.destroy();
59            }
60        }
61
62        String[] unknownCommands = {"sh", "-c", "echo oops >&2"};
63        Process erProcess = null;
64        try {
65            erProcess = Runtime.getRuntime().exec(unknownCommands, null, null);
66            InputStream is = erProcess.getErrorStream();
67            StringBuilder msg = new StringBuilder("");
68            while (true) {
69                int c = is.read();
70                if (c == -1)
71                    break;
72                msg.append((char) c);
73            }
74            assertEquals("oops\n", msg.toString());
75        } catch (IOException e) {
76            fail("IOException was thrown.");
77        } finally {
78            if (erProcess != null) {
79                erProcess.destroy();
80            }
81        }
82    }
83}
84