TestJoinTupleWritable.java 文件源码

public void testWideTuple() throws Exception {
  Text emptyText = new Text("Should be empty");
  Writable[] values = new Writable[64];
  Arrays.fill(values,emptyText);
  values[42] = new Text("Number 42");

  TupleWritable tuple = new TupleWritable(values);
  tuple.setWritten(42);

  for (int pos=0; pos<tuple.size();pos++) {
    boolean has = tuple.has(pos);
    if (pos == 42) {
      assertTrue(has);
    }
    else {
      assertFalse("Tuple position is incorrectly labelled as set: " + pos,
        has);
    }
  }
}