Hashmap Equals

hashmapEquals.java

/**
 * Asserts that two maps are equal.
 */
static public void assertEquals(Map<?, ?> actual, Map<?, ?> expected) {
  if (actual == expected) {
    return;
  }

  if (actual == null || expected == null) {
    fail("Maps not equal: expected: " + expected + " and actual: " + actual);
  }

  if (actual.size() != expected.size()) {
    fail("Maps do not have the same size:" + actual.size() + " != " + expected.size());
  }

  Set<?> entrySet = actual.entrySet();
  for (Iterator<?> iterator = entrySet.iterator(); iterator.hasNext();) {
    Map.Entry<?, ?> entry = (Map.Entry<?, ?>) iterator.next();
    Object key = entry.getKey();
    Object value = entry.getValue();
    Object expectedValue = expected.get(key);
    assertEquals(value, expectedValue, "Maps do not match for key:" + key + " actual:" + value
        + " expected:" + expectedValue);
  }

}