ImmutableMapTest.java 文件源码

public void testBuilderPutAll() {
  Map<String, Integer> toPut = new LinkedHashMap<String, Integer>();
  toPut.put("one", 1);
  toPut.put("two", 2);
  toPut.put("three", 3);
  Map<String, Integer> moreToPut = new LinkedHashMap<String, Integer>();
  moreToPut.put("four", 4);
  moreToPut.put("five", 5);

  ImmutableMap<String, Integer> map = new Builder<String, Integer>()
      .putAll(toPut)
      .putAll(moreToPut)
      .build();
  assertMapEquals(map,
      "one", 1, "two", 2, "three", 3, "four", 4, "five", 5);
}