@nlighten/json-transform-core/dist/functions/examples/group.json

Core types and utilities for handling JSON transformers

[
    {
        "name": "inline group by o",
        "given": {
            "input": [
                { "o": 1, "p": 11, "w": "aaa" },
                { "o": 1, "p": 13, "w": "bbb" },
                { "o": 1, "p": 11, "w": "ccc" },
                { "o": 2, "p": 11, "w": "ddd" },
                { "o": 2, "p": 13, "w": "eee" },
                { "o": 3, "p": 12, "w": "fff" },
                { "o": 1, "p": 9, "w": "zzz" },
                { "no_o": false, "p": 9, "w": "zzz" }
            ],
            "definition": "$$group(##current.o):$"
        },
        "expect": {
            "equal": {
                "": [{ "no_o": false, "p": 9, "w": "zzz" }],
                "1": [
                    { "o": 1, "p": 11, "w": "aaa" },
                    { "o": 1, "p": 13, "w": "bbb" },
                    { "o": 1, "p": 11, "w": "ccc" },
                    { "o": 1, "p": 9, "w": "zzz" }
                ],
                "2": [
                    { "o": 2, "p": 11, "w": "ddd" },
                    { "o": 2, "p": 13, "w": "eee" }
                ],
                "3": [{ "o": 3, "p": 12, "w": "fff" }]
            }
        }
    },
    {
        "name": "inline group by first element",
        "given": {
            "input": [
                ["a", 0, 1],
                ["a", 1, true],
                ["a", 2, "C"],
                ["b", 1, 6]
            ],
            "definition": "$$group(##current[0]):$"
        },
        "expect": {
            "equal": {
                "a": [
                    ["a", 0, 1],
                    ["a", 1, true],
                    ["a", 2, "C"]
                ],
                "b": [["b", 1, 6]]
            }
        }
    },
    {
        "name": "inline invalid input",
        "given": {
            "input": null,
            "definition": "$$group"
        },
        "expect": {
            "equal": {}
        }
    },
    {
        "name": "inline invalid input number",
        "given": {
            "input": 0.5,
            "definition": "$$group(##current[0]):$"
        },
        "expect": {
            "equal": {}
        }
    },
    {
        "name": "inline invalid input string",
        "given": {
            "input": "test",
            "definition": "$$group(##current[0]):$"
        },
        "expect": {
            "equal": {}
        }
    },
    {
        "name": "inline invalid input boolean",
        "given": {
            "input": false,
            "definition": "$$group:$"
        },
        "expect": {
            "equal": {}
        }
    },
    {
        "name": "object group by o then by p",
        "given": {
            "input": [
                { "o": 1, "p": 11, "w": "aaa" },
                { "o": 1, "p": 13, "w": "bbb" },
                { "o": 1, "p": 11, "w": "ccc" },
                { "o": 2, "p": 11, "w": "ddd" },
                { "o": 2, "p": 13, "w": "eee" },
                { "o": 3, "p": 12, "w": "fff" },
                { "o": 1, "p": 9, "w": "zzz" },
                { "no_o": false, "p": 9, "w": "zzz" }
            ],
            "definition": {
                "$$group": "$",
                "by": "##current.o",
                "then": [
                    {
                        "by": {
                            "$$join": ["p_", "##current.p"]
                        },
                        "order": "DESC"
                    }
                ]
            }
        },
        "expect": {
            "equal": {
                "": {
                    "p_9": [{ "no_o": false, "p": 9, "w": "zzz" }]
                },
                "1": {
                    "p_9": [{ "o": 1, "p": 9, "w": "zzz" }],
                    "p_13": [{ "o": 1, "p": 13, "w": "bbb" }],
                    "p_11": [
                        { "o": 1, "p": 11, "w": "aaa" },
                        { "o": 1, "p": 11, "w": "ccc" }
                    ]
                },
                "2": {
                    "p_13": [{ "o": 2, "p": 13, "w": "eee" }],
                    "p_11": [{ "o": 2, "p": 11, "w": "ddd" }]
                },
                "3": {
                    "p_12": [{ "o": 3, "p": 12, "w": "fff" }]
                }
            }
        }
    },
    {
        "name": "object invalid input",
        "given": {
            "input": null,
            "definition": { "$$group": "$" }
        },
        "expect": {
            "equal": {}
        }
    },
    {
        "name": "object invalid input number",
        "given": {
            "input": 0.5,
            "definition": { "$$group": "$" }
        },
        "expect": {
            "equal": {}
        }
    },
    {
        "name": "object invalid input boolean",
        "given": {
            "input": false,
            "definition": { "$$group": "$" }
        },
        "expect": {
            "equal": {}
        }
    },
    {
        "name": "objectLazyBy group by o and p",
        "given": {
            "input": [
                { "o": 1, "p": 11, "w": "aaa" },
                { "o": 1, "p": 13, "w": "bbb" },
                { "o": 1, "p": 11, "w": "ccc" },
                { "o": 2, "p": 11, "w": "ddd" },
                { "o": 2, "p": 13, "w": "eee" },
                { "o": 3, "p": 12, "w": "fff" },
                { "o": 1, "p": 9, "w": "zzz" },
                { "no_o": false, "p": 9, "w": "zzz" }
            ],
            "definition": {
                "$$group": "$",
                "by": { "$$join": ["##current.o", "##current.p"] }
            }
        },
        "expect": {
            "equal": {
                "111": [
                    { "o": 1, "p": 11, "w": "aaa" },
                    { "o": 1, "p": 11, "w": "ccc" }
                ],
                "113": [{ "o": 1, "p": 13, "w": "bbb" }],
                "19": [{ "o": 1, "p": 9, "w": "zzz" }],
                "211": [{ "o": 2, "p": 11, "w": "ddd" }],
                "213": [{ "o": 2, "p": 13, "w": "eee" }],
                "312": [{ "o": 3, "p": 12, "w": "fff" }],
                "9": [{ "no_o": false, "p": 9, "w": "zzz" }]
            }
        }
    }
]