Review

finding-6

/mubench/checkouts/testng/677302c/build/src/main/java/org/testng/Assert.java

assertEquals(Iterator, Iterator, String)

class Assert {
  /** Asserts that two iterators return the same elements in the same order. If they do not,
   * an AssertionError, with the given message, is thrown.
   * Please note that this assert iterates over the elements and modifies the state of the iterators.
   * @param actual the actual value
   * @param expected the expected value
   * @param message the assertion error message
   */
  static public void assertEquals(Iterator<?> actual, Iterator<?> expected, String message) {
    if(actual == expected) {
      return;
    }
    
    if(actual == null || expected == null) {
      if(message != null) {
        fail(message);
      } else {
        fail("Iterators not equal: expected: " + expected + " and actual: " + actual);
      }
    }

    int i = -1;
    while(actual.hasNext() && expected.hasNext()) {
      
      i++;
      Object e = expected.next();
      Object a = actual.next();
      String explanation = "Iterators differ at element [" + i + "]: " + e + " != " + a;
      String errorMessage = message == null ? explanation : message + ": " + explanation;
      
      assertEqualsImpl(a, e, errorMessage);
      
    }
    
    if(actual.hasNext()) { 
      
      String explanation = "Actual iterator returned more elements than the expected iterator.";
      String errorMessage = message == null ? explanation : message + ": " + explanation;
      fail(errorMessage);
      
    } else if(expected.hasNext()) {
      
      String explanation = "Expected iterator returned more elements than the actual iterator.";
      String errorMessage = message == null ? explanation : message + ": " + explanation;
      fail(errorMessage);
      
    }
    
  }

}