code: /*
   * Copyright (c) 2017-2018 The Regents of the University of California
   *
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are
   * met:
   *
   * 1. Redistributions of source code must retain the above copyright
   * notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   * notice, this list of conditions and the following disclaimer in the
   * documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  package edu.berkeley.cs.jqf.examples.closure;
  
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.PrintStream;
  import java.nio.charset.StandardCharsets;
  import java.util.logging.LogManager;
  
  import com.google.javascript.jscomp.CompilationLevel;
  import com.google.javascript.jscomp.Compiler;
  import com.google.javascript.jscomp.CompilerOptions;
  import com.google.javascript.jscomp.Result;
  import com.google.javascript.jscomp.SourceFile;
  import com.pholser.junit.quickcheck.From;
  import de.hub.se.jqf.bedivfuzz.examples.js.SplitJavaScriptCodeGenerator;
  import edu.berkeley.cs.jqf.examples.common.AsciiStringGenerator;
  import edu.berkeley.cs.jqf.examples.js.JavaScriptCodeGenerator;
  import edu.berkeley.cs.jqf.fuzz.Fuzz;
  import edu.berkeley.cs.jqf.fuzz.JQF;
  import org.apache.commons.io.IOUtils;
  import org.junit.Assume;
  import org.junit.Before;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  
  @RunWith(JQF.class)
  public class CompilerTest {
  
      static {
          // Disable all logging by Closure passes
          LogManager.getLogManager().reset();
      }
  
      private Compiler compiler = new Compiler(new PrintStream(new ByteArrayOutputStream(), false));
      private CompilerOptions options = new CompilerOptions();
      private SourceFile externs = SourceFile.fromCode("externs", "");
  
      @Before
      public void initCompiler() {
          // Don't use threads
          compiler.disableThreads();
          // Don't print things
          options.setPrintConfig(false);
          // Enable all safe optimizations
          CompilationLevel.SIMPLE_OPTIMIZATIONS.setOptionsForCompilationLevel(options);
      }
  
      private void doCompile(SourceFile input) {
          Result result = compiler.compile(externs, input, options);
          Assume.assumeTrue(result.success);
      }
  
      @Fuzz
      public void testWithString(@From(AsciiStringGenerator.class) String code) {
          SourceFile input = SourceFile.fromCode("input", code);
          doCompile(input);
      }
  
      @Fuzz
      public void debugWithString(@From(AsciiStringGenerator.class) String code) {
          System.out.println("\nInput:  " + code);
          testWithString(code);
          System.out.println("Output: " + compiler.toSource());
      }
  
      @Test
      public void smallTest() {
          debugWithString("x <<= Infinity");
      }
  
      /*
      @Fuzz
      public void testWithInputStream(InputStream in) throws IOException {
          SourceFile input = SourceFile.fromInputStream("input", in, StandardCharsets.UTF_8);
          doCompile(input);
      }*/
  
      @Fuzz
      public void debugWithInputStream(InputStream in) throws IOException {
          String input = IOUtils.toString(in, StandardCharsets.UTF_8);
          debugWithString(input);
      }
  
      @Fuzz
      public void testWithGenerator(@From(JavaScriptCodeGenerator.class) String code) {
          testWithString(code);
      }
  
      @Fuzz
      public void testWithSplitGenerator(@From(SplitJavaScriptCodeGenerator.class) String code) {
          testWithString(code);
      }
  
      @Fuzz
      public void debugWithGenerator(@From(JavaScriptCodeGenerator.class) String code) {
          debugWithString(code);
      }
  }
  