DocMap docMap = new DocMap(parentMap);

        assertNotNull(docMap);
        assertTrue(docMap.isEmpty());
        assertEquals(0, docMap.size());
    }

    public void test_basic_operations() {
        Map<String, Object> parentMap = new HashMap<>();
        DocMap docMap = new DocMap(parentMap);

        docMap.put("key1", "value1");
        docMap.put("key2", 123);
        docMap.put("key3", true);

	}

	check(t, testname+" (empty 4)", buf, "")
}

func TestBasicOperations(t *testing.T) {
	var buf Buffer

	for i := 0; i < 5; i++ {
		check(t, "TestBasicOperations (1)", &buf, "")

		buf.Reset()
		check(t, "TestBasicOperations (2)", &buf, "")

		buf.Truncate(0)
		check(t, "TestBasicOperations (3)", &buf, "")

		n, err := buf.Write(testBytes[0:1])