1 /*
   2  * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /**
  25  * @test
  26  * @bug 8159596
  27  * @library /lib/testlibrary
  28  * @modules jdk.compiler
  29  *          jdk.jartool/sun.tools.jar
  30  * @build DryRunTest CompilerUtils jdk.testlibrary.ProcessTools
  31  * @run testng DryRunTest
  32  * @summary Test java --dry-run
  33  */
  34 
  35 import java.io.File;
  36 import java.io.IOException;
  37 import java.nio.file.Files;
  38 import java.nio.file.Path;
  39 import java.nio.file.Paths;
  40 
  41 import jdk.testlibrary.ProcessTools;
  42 
  43 import org.testng.annotations.BeforeTest;
  44 import org.testng.annotations.Test;
  45 import static org.testng.Assert.*;
  46 
  47 
  48 @Test
  49 public class DryRunTest {
  50 
  51     private static final String TEST_SRC = System.getProperty("test.src");
  52 
  53     private static final Path SRC_DIR = Paths.get(TEST_SRC, "src");
  54     private static final Path MODS_DIR = Paths.get("mods");
  55     private static final Path LIBS_DIR = Paths.get("libs");
  56 
  57     // the module name of the test module
  58     private static final String TEST_MODULE = "test";
  59     private static final String M_MODULE = "m";
  60 
  61     // the module main class
  62     private static final String MAIN_CLASS = "jdk.test.Main";
  63 
  64 
  65     @BeforeTest
  66     public void compileTestModule() throws Exception {
  67 
  68         // javac -d mods/$TESTMODULE src/$TESTMODULE/**
  69         assertTrue(CompilerUtils.compile(SRC_DIR.resolve(M_MODULE),
  70                                          MODS_DIR,
  71                                          "-modulesourcepath", SRC_DIR.toString()));
  72 
  73         assertTrue(CompilerUtils.compile(SRC_DIR.resolve(TEST_MODULE),
  74                                          MODS_DIR,
  75                                          "-modulesourcepath", SRC_DIR.toString()));
  76 
  77         Files.createDirectories(LIBS_DIR);
  78 
  79         // create JAR files with no module-info.class
  80         assertTrue(jar(M_MODULE, "p/Lib.class"));
  81         assertTrue(jar(TEST_MODULE, "jdk/test/Main.class"));
  82     }
  83 
  84     /**
  85      * Execute "java" with the given arguments, returning the exit code.
  86      */
  87     private int exec(String... args) throws Exception {
  88        return ProcessTools.executeTestJava(args)
  89                 .outputTo(System.out)
  90                 .errorTo(System.out)
  91                 .getExitValue();
  92     }
  93 
  94 
  95     /**
  96      * Launch module main
  97      */
  98     public void testModule() throws Exception {
  99         String dir = MODS_DIR.toString();
 100         String mid = TEST_MODULE + "/" + MAIN_CLASS;
 101 
 102         // java -modulepath mods -module $TESTMODULE/$MAINCLASS
 103         // no resolution failure
 104         int exitValue = exec("--dry-run", "-modulepath", dir, "-m", mid);
 105         assertTrue(exitValue == 0);
 106     }
 107 
 108     /**
 109      * Test non-existence module in -addmods
 110      */
 111     public void testNonExistAddModules() throws Exception {
 112         String dir = MODS_DIR.toString();
 113         String mid = TEST_MODULE + "/" + MAIN_CLASS;
 114 
 115         int exitValue = exec("--dry-run", "-modulepath", dir,
 116                              "-addmods", "non.existence",
 117                              "-m", mid);
 118         assertTrue(exitValue != 0);
 119     }
 120 
 121     /**
 122      * Launch main class from class path
 123      */
 124     public void testClassPath() throws Exception {
 125         Path testJar = LIBS_DIR.resolve(TEST_MODULE + ".jar");
 126         String libs = testJar.toString() + File.pathSeparator +
 127                         LIBS_DIR.resolve(M_MODULE + ".jar").toString();
 128 
 129         // test pass with m.jar:test.jar
 130         int exitValue = exec("-classpath", libs, MAIN_CLASS);
 131         assertTrue(exitValue == 0);
 132 
 133         // m.jar is not on classpath and fails with p.Lib not found
 134         exitValue = exec("-classpath", testJar.toString(), MAIN_CLASS);
 135         assertTrue(exitValue != 0);
 136 
 137         // dry pass passes since main is not executed
 138         exitValue = exec("--dry-run", "-classpath", testJar.toString(), MAIN_CLASS);
 139         assertTrue(exitValue == 0);
 140     }
 141 
 142     /**
 143      * Test automatic modules
 144      */
 145     public void testAutomaticModule() throws Exception {
 146         String libs = LIBS_DIR.resolve(M_MODULE + ".jar").toString() +
 147                         File.pathSeparator +
 148                         LIBS_DIR.resolve(TEST_MODULE + ".jar").toString();
 149         String mid = TEST_MODULE + "/" + MAIN_CLASS;
 150 
 151         // test main method with and without -addmods mm
 152         int exitValue = exec("-modulepath", LIBS_DIR.toString(),
 153                              "-m", mid);
 154         assertTrue(exitValue != 0);
 155 
 156         exitValue = exec("-modulepath", LIBS_DIR.toString(),
 157                          "-addmods", M_MODULE,
 158                          "-m", mid);
 159         assertTrue(exitValue == 0);
 160 
 161         // test dry run with and without -addmods m
 162         // no resolution failure
 163         exitValue = exec("--dry-run", "-modulepath", LIBS_DIR.toString(),
 164                          "-m", mid);
 165         assertTrue(exitValue == 0);
 166 
 167         exitValue = exec("--dry-run", "-modulepath", LIBS_DIR.toString(),
 168                          "-addmods", M_MODULE,
 169                          "-m", mid);
 170         assertTrue(exitValue == 0);
 171     }
 172 
 173     /**
 174      * module m not found
 175      */
 176     public void testMissingModule() throws Exception {
 177         String subdir = MODS_DIR.resolve(TEST_MODULE).toString();
 178         String mid = TEST_MODULE + "/" + MAIN_CLASS;
 179 
 180         // resolution failure
 181         int exitValue = exec("--dry-run", "-modulepath", subdir, "-m", mid);
 182         assertTrue(exitValue != 0);
 183     }
 184 
 185     private static boolean jar(String name, String entries) throws IOException {
 186         Path jar = LIBS_DIR.resolve(name + ".jar");
 187 
 188         // jar --create ...
 189         String classes = MODS_DIR.resolve(name).toString();
 190         String[] args = {
 191             "--create",
 192             "--file=" + jar,
 193             "-C", classes, entries
 194         };
 195         boolean success
 196             = new sun.tools.jar.Main(System.out, System.out, "jar").run(args);
 197         return success;
 198     }
 199 }