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 java.security.SecureRandom;
  import java.util.Random;
  import java.util.SplittableRandom;
  import java.util.concurrent.ThreadLocalRandom;
  
  import one.util.huntbugs.registry.anno.AssertNoWarning;
  import one.util.huntbugs.registry.anno.AssertWarning;
  
  /**
   * @author Tagir Valeev
   *
   */
  public class TestRandomUsage {
      @AssertWarning("RandomDoubleToInt")
      public int test() {
          return (int) Math.random();
      }
  
      @AssertWarning(value="RandomNextIntViaNextDouble", maxScore=35)
      public int testMul() {
          return (int) (10*Math.random());
      }
      
      @AssertWarning("RandomDoubleToInt")
      public int testRnd(Random r) {
          return (int) r.nextDouble();
      }
      
      @AssertWarning("RandomNextIntViaNextDouble")
      public int testRndMult(Random r) {
          return (int) (r.nextDouble()*10);
      }
      
      @AssertWarning("RandomDoubleToInt")
      public int testRnd() {
          return (int) ThreadLocalRandom.current().nextDouble();
      }
      
      @AssertNoWarning("Random*")
      public int testRndOk() {
          return (int) ThreadLocalRandom.current().nextDouble(100);
      }
      
      @AssertWarning("RandomUsedOnlyOnce")
      public int testRndOnce() {
          return new SplittableRandom().nextInt(10, 20);
      }
      
      @AssertNoWarning("RandomUsedOnlyOnce")
      public int[] testRndArr() {
          return new Random().ints(100).toArray();
      }
      
      @AssertNoWarning("RandomUsedOnlyOnce")
      public int testRndOnceSecure() {
          return new SecureRandom().nextInt();
      }
  }
  