1/* Licensed to the Apache Software Foundation (ASF) under one or more
2 * contributor license agreements.  See the NOTICE file distributed with
3 * this work for additional information regarding copyright ownership.
4 * The ASF licenses this file to You under the Apache License, Version 2.0
5 * (the "License"); you may not use this file except in compliance with
6 * the License.  You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package org.apache.harmony.tests.java.lang;
18
19import junit.framework.TestCase;
20import java.io.File;
21import java.io.IOException;
22import java.io.InputStream;
23import java.util.ArrayList;
24import java.util.Arrays;
25import java.util.List;
26import java.util.Map;
27
28public class ProcessBuilderTest extends TestCase {
29
30    public void testProcessBuilderStringArray() {
31
32    }
33
34    public void testProcessBuilderListOfString() {
35        try {
36            new ProcessBuilder((List<String>) null);
37            fail("no null pointer exception");
38        } catch (NullPointerException e) {
39        }
40    }
41
42    public void testCommand() {
43        ProcessBuilder pb = new ProcessBuilder("command");
44        assertEquals(1, pb.command().size());
45        assertEquals("command", pb.command().get(0));
46
47        // Regression for HARMONY-2675
48        pb = new ProcessBuilder("AAA");
49        pb.command("BBB", "CCC");
50        List<String> list = pb.command();
51        list.add("DDD");
52        String[] command = new String[3];
53        list.toArray(command);
54        assertTrue(Arrays.equals(new String[] { "BBB", "CCC", "DDD" }, command));
55    }
56
57    public void testCommandStringArray() {
58        ProcessBuilder pb = new ProcessBuilder("command");
59        ProcessBuilder pbReturn = pb.command("cmd");
60        assertSame(pb, pbReturn);
61        assertEquals(1, pb.command().size());
62        assertEquals("cmd", pb.command().get(0));
63    }
64
65    public void testCommandListOfString() {
66        ProcessBuilder pb = new ProcessBuilder("command");
67        List<String> newCmd = new ArrayList<String>();
68        newCmd.add("cmd");
69        ProcessBuilder pbReturn = pb.command(newCmd);
70        assertSame(pb, pbReturn);
71        assertEquals(1, pb.command().size());
72        assertEquals("cmd", pb.command().get(0));
73
74        newCmd.add("arg");
75        assertEquals(2, pb.command().size());
76        assertEquals("cmd", pb.command().get(0));
77        assertEquals("arg", pb.command().get(1));
78    }
79
80    public void testDirectory() {
81        ProcessBuilder pb = new ProcessBuilder("command");
82        assertNull(pb.directory());
83    }
84
85    public void testDirectoryFile() {
86        ProcessBuilder pb = new ProcessBuilder("command");
87        File dir = new File(System.getProperty("java.io.tmpdir"));
88        ProcessBuilder pbReturn = pb.directory(dir);
89        assertSame(pb, pbReturn);
90        assertEquals(dir, pb.directory());
91
92        pbReturn = pb.directory(null);
93        assertSame(pb, pbReturn);
94        assertNull(pb.directory());
95    }
96
97    public void testEnvironment() {
98        ProcessBuilder pb = new ProcessBuilder("command");
99        Map<String, String> env = pb.environment();
100        assertEquals(System.getenv(), env);
101        env.clear();
102        env = pb.environment();
103        assertTrue(env.isEmpty());
104        try {
105            env.put(null, "");
106            fail("should throw NPE.");
107        } catch (NullPointerException e) {
108            // expected;
109        }
110        try {
111            env.put("", null);
112            fail("should throw NPE.");
113        } catch (NullPointerException e) {
114            // expected;
115        }
116        try {
117            env.get(null);
118            fail("should throw NPE.");
119        } catch (NullPointerException e) {
120            // expected;
121        }
122        try {
123            assertNull(env.get(new Object()));
124            // Android's get doesn't throw (because it's just a regular HashMap).
125            // fail("should throw ClassCastException.");
126        } catch (ClassCastException thrownByRi) {
127        }
128    }
129
130    public void testRedirectErrorStream() {
131        ProcessBuilder pb = new ProcessBuilder("command");
132        assertFalse(pb.redirectErrorStream());
133    }
134
135    public void testRedirectErrorStreamBoolean() {
136        ProcessBuilder pb = new ProcessBuilder("command");
137        ProcessBuilder pbReturn = pb.redirectErrorStream(true);
138        assertSame(pb, pbReturn);
139        assertTrue(pb.redirectErrorStream());
140    }
141
142    /**
143     * @throws IOException
144     * {@link java.lang.ProcessBuilder#start()}
145     */
146    @SuppressWarnings("nls")
147    public void testStart() throws IOException {
148        ProcessBuilder pb = new ProcessBuilder("ls", "-al");
149
150        // Call the test target
151        Process process = pb.start();
152        InputStream in = process.getInputStream();
153        InputStream err = process.getErrorStream();
154
155        while (true) {
156            try {
157                process.waitFor();
158                break;
159            } catch (InterruptedException e) {
160                // Ignored
161            }
162        }
163
164        byte[] buf = new byte[1024];
165        if (in.available() > 0) {
166            assertTrue(in.read(buf) > 0);
167        } else {
168            assertTrue(err.read(buf) > 0);
169        }
170    }
171}
172