1 /*
   2  * Copyright (c) 2010, 2013, 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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package jdk.nashorn.internal.parser;
  27 
  28 import java.io.File;
  29 import jdk.nashorn.internal.codegen.Compiler;
  30 import jdk.nashorn.internal.codegen.CompilerConstants;
  31 import jdk.nashorn.internal.runtime.Context;
  32 import jdk.nashorn.internal.runtime.ErrorManager;
  33 import jdk.nashorn.internal.runtime.ScriptObject;
  34 import jdk.nashorn.internal.runtime.Source;
  35 import jdk.nashorn.internal.runtime.options.Options;
  36 import org.testng.Assert;
  37 import org.testng.annotations.Test;
  38 
  39 /**
  40  * Run tests to check Nashorn's parser.
  41  */
  42 public class ParserTest {
  43     private static final boolean VERBOSE   = Boolean.valueOf(System.getProperty("parsertest.verbose"));
  44     private static final boolean TEST262   = Boolean.valueOf(System.getProperty("parsertest.test262"));
  45 

  46     private static final String TEST_BASIC_DIR  = System.getProperty("test.basic.dir");
  47     private static final String TEST262_SUITE_DIR = System.getProperty("test262.suite.dir");
  48 
  49 
  50     interface TestFilter {
  51         public boolean exclude(File file, String content);
  52     }
  53 
  54     private void log(String msg) {
  55         org.testng.Reporter.log(msg, true);
  56     }
  57 
  58     private Context context;
  59     private ScriptObject global;
  60 
  61     public ParserTest() {
  62         final Options options = new Options("nashorn");
  63         options.set("anon.functions", true);
  64         options.set("parse.only", true);
  65         options.set("scripting", true);
  66 
  67         ErrorManager errors = new ErrorManager();
  68         this.context = new Context(options, errors);
  69         this.global = context.createGlobal();
  70     }
  71 
  72     @Test
  73     public void parseAllTests() {
  74         if (TEST262) {
  75             parseTestSet(TEST262_SUITE_DIR, new TestFilter() {
  76                 @Override
  77                 public boolean exclude(final File file, final String content) {
  78                     return content.indexOf("@negative") != -1;
  79                 }
  80             });
  81         }

  82         parseTestSet(TEST_BASIC_DIR, null);
  83     }
  84 
  85     private void parseTestSet(final String testSet, final TestFilter filter) {
  86         passed  = 0;
  87         failed  = 0;
  88         skipped = 0;
  89 
  90         final File testSetDir = new File(testSet);
  91         if (! testSetDir.isDirectory()) {
  92             log("WARNING: " + testSetDir + " not found or not a directory");
  93             return;
  94         }
  95         log(testSetDir.getAbsolutePath());
  96         parseJSDirectory(testSetDir, filter);
  97 
  98         log(testSet + " parse done!");
  99         log("parse ok: " + passed);
 100         log("parse failed: " + failed);
 101         log("parse skipped: " + skipped);
 102         if (failed != 0) {
 103             Assert.fail(failed + " tests failed to compile in " + testSetDir.getAbsolutePath());
 104         }
 105     }
 106 
 107     // number of scripts that parsed fine
 108     private int passed;
 109     // number of scripts resulting in parse failure
 110     private int failed;
 111     // scripts that were skipped - all tests with @negative are
 112     // skipped for now.
 113     private int skipped;
 114 
 115     private void parseJSDirectory(final File dir, final TestFilter filter) {
 116         for (final File f : dir.listFiles()) {
 117             if (f.isDirectory()) {
 118                 parseJSDirectory(f, filter);
 119             } else if (f.getName().endsWith(".js")) {
 120                 parseJSFile(f, filter);
 121             }
 122         }
 123     }
 124 
 125     private void parseJSFile(final File file, final TestFilter filter) {
 126         if (VERBOSE) {
 127             log("Begin parsing " + file.getAbsolutePath());
 128         }
 129 
 130         final ScriptObject oldGlobal = Context.getGlobal();
 131         final boolean globalChanged = (oldGlobal != global);
 132         try {
 133             final char[] buffer = Source.readFully(file);
 134             boolean excluded = false;
 135             if (filter != null) {
 136                 final String content = new String(buffer);
 137                 excluded = filter.exclude(file, content);
 138             }
 139 
 140             if (excluded) {
 141                 if (VERBOSE) {
 142                     log("Skipping " + file.getAbsolutePath());
 143                 }
 144                 skipped++;
 145                 return;
 146             }
 147 
 148             final ErrorManager errors = new ErrorManager() {
 149                 @Override
 150                 public void error(final String msg) {
 151                     log(msg);
 152                 }
 153             };
 154             errors.setLimit(0);
 155             if (globalChanged) {
 156                 Context.setGlobal(global);
 157             }
 158             final Source   source   = new Source(file.getAbsolutePath(), buffer);
 159             final Compiler compiler = Compiler.compiler(source, context, errors, context._strict);
 160 
 161             final Parser parser = new Parser(compiler);
 162             parser.parse(CompilerConstants.RUN_SCRIPT.tag());
 163             if (errors.getNumberOfErrors() > 0) {
 164                 log("Parse failed: " + file.getAbsolutePath());
 165                 failed++;
 166             } else {
 167                 passed++;
 168             }
 169         } catch (final Throwable exp) {
 170             log("Parse failed: " + file.getAbsolutePath() + " : " + exp);
 171             if (VERBOSE) {
 172                 exp.printStackTrace(System.out);
 173             }
 174             failed++;
 175         } finally {
 176             if (globalChanged) {
 177                 Context.setGlobal(oldGlobal);
 178             }
 179         }
 180 
 181         if (VERBOSE) {
 182             log("Done parsing " + file.getAbsolutePath());
 183         }
 184     }
 185 }
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