1 /*
   2  * Copyright (c) 2015, 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 8144095
  27  * @summary Test Command Completion
  28  * @modules jdk.compiler/com.sun.tools.javac.api
  29  *          jdk.compiler/com.sun.tools.javac.main
  30  *          jdk.jdeps/com.sun.tools.javap
  31  *          jdk.jshell/jdk.internal.jshell.tool
  32  * @library /tools/lib
  33  * @build toolbox.ToolBox toolbox.JarTask toolbox.JavacTask
  34  * @build ReplToolTesting TestingInputStream Compiler
  35  * @run testng CommandCompletionTest
  36  */
  37 
  38 import java.io.IOException;
  39 import java.nio.file.FileSystems;
  40 import java.nio.file.Files;
  41 import java.nio.file.Path;
  42 import java.nio.file.Paths;
  43 import java.util.Collections;
  44 import java.util.List;
  45 import java.util.function.Predicate;
  46 import java.util.stream.Collectors;
  47 import java.util.stream.Stream;
  48 
  49 import org.testng.annotations.Test;
  50 
  51 @Test
  52 public class CommandCompletionTest extends ReplToolTesting {
  53 
  54     public void testCommand() {
  55         assertCompletion("/deb|", false);
  56         assertCompletion("/re|", false, "/reload ", "/reset ", "/retain ");
  57         assertCompletion("/h|", false, "/help ", "/history ");
  58     }
  59 
  60     public void testList() {
  61         test(false, new String[] {"-nostartup"},
  62                 a -> assertCompletion(a, "/l|", false, "/list "),
  63                 a -> assertCompletion(a, "/list |", false, "-all ", "-history ", "-start "),
  64                 a -> assertCompletion(a, "/list -h|", false, "-history "),
  65                 a -> assertCompletion(a, "/list q|", false),
  66                 a -> assertVariable(a, "int", "xray"),
  67                 a -> assertCompletion(a, "/list |", false, "-all ", "-history ", "-start ", "1", "xray"),
  68                 a -> assertCompletion(a, "/list x|", false, "xray")
  69         );
  70     }
  71 
  72     public void testDrop() {
  73         test(false, new String[] {"-nostartup"},
  74                 a -> assertCompletion(a, "/d|", false, "/drop "),
  75                 a -> assertClass(a, "class cTest {}", "class", "cTest"),
  76                 a -> assertMethod(a, "int mTest() { return 0; }", "()I", "mTest"),
  77                 a -> assertVariable(a, "int", "fTest"),
  78                 a -> assertCompletion(a, "/drop |", false, "1", "2", "3", "cTest", "fTest", "mTest"),
  79                 a -> assertCompletion(a, "/drop f|", false, "fTest")
  80         );
  81     }
  82 
  83     public void testEdit() {
  84         test(false, new String[]{"-nostartup"},
  85                 a -> assertCompletion(a, "/e|", false, "/edit ", "/exit "),
  86                 a -> assertCompletion(a, "/ed|", false, "/edit "),
  87                 a -> assertClass(a, "class cTest {}", "class", "cTest"),
  88                 a -> assertMethod(a, "int mTest() { return 0; }", "()I", "mTest"),
  89                 a -> assertVariable(a, "int", "fTest"),
  90                 a -> assertCompletion(a, "/edit |", false, "1", "2", "3", "cTest", "fTest", "mTest"),
  91                 a -> assertCompletion(a, "/edit f|", false, "fTest")
  92         );
  93     }
  94 
  95     public void testOpen() throws IOException {
  96         Compiler compiler = new Compiler();
  97         assertCompletion("/o|", false, "/open ");
  98         List<String> p1 = listFiles(Paths.get(""));
  99         FileSystems.getDefault().getRootDirectories().forEach(s -> p1.add(s.toString()));
 100         Collections.sort(p1);
 101         assertCompletion("/open |", false, p1.toArray(new String[p1.size()]));
 102         Path classDir = compiler.getClassDir();
 103         List<String> p2 = listFiles(classDir);
 104         assertCompletion("/open " + classDir + "/|", false, p2.toArray(new String[p2.size()]));
 105     }
 106 
 107     public void testSave() throws IOException {
 108         Compiler compiler = new Compiler();
 109         assertCompletion("/s|", false, "/save ", "/set ");
 110         List<String> p1 = listFiles(Paths.get(""));
 111         Collections.addAll(p1, "-all ", "-history ", "-start ");
 112         FileSystems.getDefault().getRootDirectories().forEach(s -> p1.add(s.toString()));
 113         Collections.sort(p1);
 114         assertCompletion("/save |", false, p1.toArray(new String[p1.size()]));
 115         Path classDir = compiler.getClassDir();
 116         List<String> p2 = listFiles(classDir);
 117         assertCompletion("/save " + classDir + "/|",
 118                 false, p2.toArray(new String[p2.size()]));
 119         assertCompletion("/save -all " + classDir + "/|",
 120                 false, p2.toArray(new String[p2.size()]));
 121     }
 122 
 123     public void testClassPath() throws IOException {
 124         assertCompletion("/classp|", false, "/classpath ");
 125         Compiler compiler = new Compiler();
 126         Path outDir = compiler.getPath("testClasspathCompletion");
 127         Files.createDirectories(outDir);
 128         Files.createDirectories(outDir.resolve("dir"));
 129         createIfNeeded(outDir.resolve("test.jar"));
 130         createIfNeeded(outDir.resolve("test.zip"));
 131         compiler.compile(outDir, "package pkg; public class A { public String toString() { return \"A\"; } }");
 132         String jarName = "test.jar";
 133         compiler.jar(outDir, jarName, "pkg/A.class");
 134         compiler.getPath(outDir).resolve(jarName);
 135         List<String> paths = listFiles(outDir, CLASSPATH_FILTER);
 136         assertCompletion("/classpath " + outDir + "/|", false, paths.toArray(new String[paths.size()]));
 137     }
 138 
 139     public void testUserHome() throws IOException {
 140         List<String> completions;
 141         Path home = Paths.get(System.getProperty("user.home"));
 142         try (Stream<Path> content = Files.list(home)) {
 143             completions = content.filter(CLASSPATH_FILTER)
 144                                  .map(file -> file.getFileName().toString() + (Files.isDirectory(file) ? "/" : ""))
 145                                  .sorted()
 146                                  .collect(Collectors.toList());
 147         }
 148         assertCompletion("/classpath ~/|", false, completions.toArray(new String[completions.size()]));
 149     }
 150 
 151     private void createIfNeeded(Path file) throws IOException {
 152         if (!Files.exists(file))
 153             Files.createFile(file);
 154     }
 155     private List<String> listFiles(Path path) throws IOException {
 156         return listFiles(path, ACCEPT_ALL);
 157     }
 158 
 159     private List<String> listFiles(Path path, Predicate<? super Path> filter) throws IOException {
 160         try (Stream<Path> stream = Files.list(path)) {
 161             return stream.filter(filter)
 162                          .map(p -> p.getFileName().toString() + (Files.isDirectory(p) ? "/" : ""))
 163                          .sorted()
 164                          .collect(Collectors.toList());
 165         }
 166     }
 167 
 168     private static final Predicate<? super Path> ACCEPT_ALL =
 169             (file) -> !file.endsWith(".") && !file.endsWith("..");
 170 
 171     private static final Predicate<? super Path> CLASSPATH_FILTER =
 172             (file) -> ACCEPT_ALL.test(file) &&
 173                     (Files.isDirectory(file) ||
 174                      file.getFileName().toString().endsWith(".jar") ||
 175                      file.getFileName().toString().endsWith(".zip"));
 176 }