我正在尝试使用PyHamcrestpython 库来验证嵌套字典（子图）是否是另一个更大的嵌套字典（完整图）的子集。

在下面的例子中，我尝试验证子图 json的节点子集（及其属性子列表）是否存在于完整图json的所有节点列表（及其所有属性列表）中。

以下示例数据供参考：

子图json 是

{
    "nodes": [{
        "properties": [{
            "key": "key11",
            "value": ["val11", "val12"]
        }, {
            "key": "key12",
            "value": "val21"
        }],
        "types": ["t11", "t12"]
    }]
}

完整的图表json是（简化的）

{
    "graph": {
        "id": "graph_id",
        "timestamp": "str_of_time",
        "nodes": [{
                "id": "node_id1",
                "properties": [{
                    "key": "key11",
                    "value": ["val11", "val12"]
                }, {
                    "key": "key12",
                    "value": "val21"
                }, {
                    "key": "key13",
                    "value": "val31"
                } {
                    "key": "key14",
                    "value": ["val41", "val42"]
                }],
                "types": ["t11", "t12", "t13", "t14"]
            },
            {
                "id": "node_id2",
                "properties": [{
                    "key": "key21",
                    "value": ["val21", "val22"]
                }, {
                    "key": "key22",
                    "value": "val23"
                }],
                "types": ["t21", "t22"]
            },
            ...and a lot of other nodes....
        ],
        "edges": [{
                "id": "edge_id1",
                "properties": [],
                "type": "type1",
                "source": {
                    "id": "source_id1",
                    "resolutionType": "source_res1"
                },
                "target": {
                    "id": "target_id1",
                    "resolutionType": "target_res1"
                }
            }, {
                "id": "edge_id2",
                "properties": [{
                    "key": "key1",
                    "value": "val1"
                }, {
                    "key": "key2",
                    "value": "val2"
                }],
                "type": "type2",
                "source": {
                    "id": "source_id2",
                    "resolutionType": "source_res2"
                },
                "target": {
                    "id": "target_id2",
                    "resolutionType": "target_res2"
                }
            }
            ...and a lot of other edges....
        ]
    }
}

这是我尝试过的但是它失败了因为它需要一个完整的字典列表而不仅仅是子字典。

    assert_that(
      full_graph["graph"]["nodes"],
      has_items(sub_graph["nodes"])
    )

我收到错误

AssertionError: 
Expected: (a sequence containing <[list of ALL nodes in sub graph]>)
     but: a sequence containing <[list of ALL nodes of full graph]>. # how do I set this to only list of expected nodes and NOT ALL nodes in full graph?

有关结构的附加信息（如果它不是来自上面的示例 json）

• graph- 字典
  • id- 字符串
  • timestamp- 字符串
  • nodes- 列表dicts
  • edges- 列表dicts
  • 每个node
    • id-> 字符串
    • types-> str 列表
    • properties-> 字典列表
  • 每个edge
    • id-> 字符串
    • type-> 字符串
    • properties-> 字典列表
    • source-> 字典
    • target-> 字典

所以，我可能以错误的方式使用了该库，并且无法弄清楚如何检查子图 json 是否是完整图 json 的子集。

问候，这很复杂

解决方案

暂无回答