@Test
public void greaterThanOrEqualsTo() {

  Object value = new Object();
  doReturn(entry).when(map).higherEntry(value);
  doReturn(result).when(rangeIndex).greaterThan(value);
  doNothing().when(rangeIndex).equalsTo(value, result);
  rangeIndex.greaterThanOrEqualsTo(value);
  verify(rangeIndex).greaterThan(value);
  verify(rangeIndex).equalsTo(value, result);
}