content: /*
   * Copyright 2016 HuntBugs contributors
   * 
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   * 
   *     http://www.apache.org/licenses/LICENSE-2.0
   * 
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package one.util.huntbugs.testdata;
  
  import one.util.huntbugs.registry.anno.AssertNoWarning;
  import one.util.huntbugs.registry.anno.AssertWarning;
  
  /**
   * @author Tagir Valeev
   *
   */
  public class TestStringConcatInLoop {
      @AssertWarning(value="StringConcatInLoop", minScore=47)
      public String testStringConcatInLoopSimple(String[] data) {
          String result = "";
          for(String row : data)
              result+=row;
          return result;
      }
  
      @AssertWarning(value="StringConcatInLoop", maxScore=47)
      public String testStringConcatInLoopIf(String[] data) {
          String result = "";
          for(String row : data)
              if(!row.isEmpty())
                  result+=row;
          return result;
      }
  
      @AssertWarning("StringConcatInLoop")
      public String testStringConcatInLoopNested(String[] data) {
          String result = "";
          for(String row : data) {
              for(int i=0; i<10; i++)
                  result+=row;
          }
          return result+ParseException.r;
      }
      
      @AssertWarning("StringConcatInLoop")
      public int testStringConcatInLoopNested2(String[] data) {
          int i=0;
          for(String row : data) {
              String result = "";
              for(int j=0; j<10; j++)
                  result+=row;
              i+=result.length();
          }
          return i;
      }
      
      @AssertNoWarning("*")
      public int testStringConcatOk(String[] data) {
          int n = 0;
          for(String row : data) {
              String result = row; 
              result+=row;
              n+=result.length();
          }
          return n;
      }
      
      @AssertNoWarning("*")
      static class ParseException extends Exception {
          public static final String r = initialise(new String[] {"1", "2"});
          
          private static String initialise(String[] tokens) {
              String retval = "";
              for (String t : tokens) {
                  retval += t;
              }
              return retval;
          }
      }
  }
  