1 /* 2 * Copyright (C) 2009 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * 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 17 package libcore.java.lang; 18 19 import java.io.File; 20 import java.io.IOException; 21 import java.io.InputStream; 22 import java.io.OutputStream; 23 import java.util.HashMap; 24 import java.util.Map; 25 import libcore.java.util.AbstractResourceLeakageDetectorTestCase; 26 import static tests.support.Support_Exec.execAndCheckOutput; 27 28 public class ProcessBuilderTest extends AbstractResourceLeakageDetectorTestCase { 29 shell()30 private static String shell() { 31 String deviceSh = System.getenv("ANDROID_ROOT") + "/bin/sh"; 32 String desktopSh = "/bin/sh"; 33 return new File(deviceSh).exists() ? deviceSh : desktopSh; 34 } 35 assertRedirectErrorStream(boolean doRedirect, String expectedOut, String expectedErr)36 private static void assertRedirectErrorStream(boolean doRedirect, 37 String expectedOut, String expectedErr) throws Exception { 38 ProcessBuilder pb = new ProcessBuilder(shell(), "-c", "echo out; echo err 1>&2"); 39 pb.redirectErrorStream(doRedirect); 40 execAndCheckOutput(pb, expectedOut, expectedErr); 41 } 42 test_redirectErrorStream_true()43 public void test_redirectErrorStream_true() throws Exception { 44 assertRedirectErrorStream(true, "out\nerr\n", ""); 45 } 46 test_redirectErrorStream_false()47 public void test_redirectErrorStream_false() throws Exception { 48 assertRedirectErrorStream(false, "out\n", "err\n"); 49 } 50 testEnvironment()51 public void testEnvironment() throws Exception { 52 ProcessBuilder pb = new ProcessBuilder(shell(), "-c", "echo $A"); 53 pb.environment().put("A", "android"); 54 execAndCheckOutput(pb, "android\n", ""); 55 } 56 testDestroyClosesEverything()57 public void testDestroyClosesEverything() throws IOException { 58 Process process = new ProcessBuilder(shell(), "-c", "echo out; echo err 1>&2").start(); 59 InputStream in = process.getInputStream(); 60 InputStream err = process.getErrorStream(); 61 OutputStream out = process.getOutputStream(); 62 process.destroy(); 63 64 try { 65 in.read(); 66 fail(); 67 } catch (IOException expected) { 68 } 69 try { 70 err.read(); 71 fail(); 72 } catch (IOException expected) { 73 } 74 try { 75 /* 76 * We test write+flush because the RI returns a wrapped stream, but 77 * only bothers to close the underlying stream. 78 */ 79 out.write(1); 80 out.flush(); 81 fail(); 82 } catch (IOException expected) { 83 } 84 } 85 testDestroyDoesNotLeak()86 public void testDestroyDoesNotLeak() throws IOException { 87 Process process = new ProcessBuilder(shell(), "-c", "echo out; echo err 1>&2").start(); 88 process.destroy(); 89 } 90 testEnvironmentMapForbidsNulls()91 public void testEnvironmentMapForbidsNulls() throws Exception { 92 ProcessBuilder pb = new ProcessBuilder(shell(), "-c", "echo $A"); 93 Map<String, String> environment = pb.environment(); 94 Map<String, String> before = new HashMap<String, String>(environment); 95 try { 96 environment.put("A", null); 97 fail(); 98 } catch (NullPointerException expected) { 99 } 100 try { 101 environment.put(null, "android"); 102 fail(); 103 } catch (NullPointerException expected) { 104 } 105 assertEquals(before, environment); 106 } 107 } 108