jsonpath/nodejs/test/index.spec.js

const jsonpath = require('../lib/index.js');

let jsonObj = {
    "store": {
        "book": [
            {
                "category": "reference",
                "author": "Nigel Rees",
                "title": "Sayings of the Century",
                "price": 8.95
            },
            {
                "category": "fiction",
                "author": "Evelyn Waugh",
                "title": "Sword of Honour",
                "price": 12.99
            },
            {
                "category": "fiction",
                "author": "Herman Melville",
                "title": "Moby Dick",
                "isbn": "0-553-21311-3",
                "price": 8.99
            },
            {
                "category": "fiction",
                "author": "J. R. R. Tolkien",
                "title": "The Lord of the Rings",
                "isbn": "0-395-19395-8",
                "price": 22.99
            }
        ],
        "bicycle": {
            "color": "red",
            "price": 19.95
        }
    },
    "expensive": 10
};

let list = {
    '$.store.book[*].author': [
        "Nigel Rees",
        "Evelyn Waugh",
        "Herman Melville",
        "J. R. R. Tolkien"
    ],

    '$..author':[
        "Nigel Rees",
        "Evelyn Waugh",
        "Herman Melville",
        "J. R. R. Tolkien"
    ],

    '$.store.*': [
        [
            {
                "category": "reference",
                "author": "Nigel Rees",
                "title": "Sayings of the Century",
                "price": 8.95
            },
            {
                "category": "fiction",
                "author": "Evelyn Waugh",
                "title": "Sword of Honour",
                "price": 12.99
            },
            {
                "category": "fiction",
                "author": "Herman Melville",
                "title": "Moby Dick",
                "isbn": "0-553-21311-3",
                "price": 8.99
            },
            {
                "category": "fiction",
                "author": "J. R. R. Tolkien",
                "title": "The Lord of the Rings",
                "isbn": "0-395-19395-8",
                "price": 22.99
            }
        ],
        {
            "color": "red",
            "price": 19.95
        }
    ],

    '$.store..price':[
        8.95,
        12.99,
        8.99,
        22.99,
        19.95
    ],

    '$..book[2]': [
        {
            "category": "fiction",
            "author": "Herman Melville",
            "title": "Moby Dick",
            "isbn": "0-553-21311-3",
            "price": 8.99
        }
    ],

    '$..book[-2]': [
        {
            "category": "fiction",
            "author": "Herman Melville",
            "title": "Moby Dick",
            "isbn": "0-553-21311-3",
            "price": 8.99
        }
    ],

    '$..book[0,1]': [
        {
            "category": "reference",
            "author": "Nigel Rees",
            "title": "Sayings of the Century",
            "price": 8.95
        },
        {
            "category": "fiction",
            "author": "Evelyn Waugh",
            "title": "Sword of Honour",
            "price": 12.99
        }
    ],

    '$..book[:2]': [
        {
            "category": "reference",
            "author": "Nigel Rees",
            "title": "Sayings of the Century",
            "price": 8.95
        },
        {
            "category": "fiction",
            "author": "Evelyn Waugh",
            "title": "Sword of Honour",
            "price": 12.99
        }
    ],

    '$..book[1:2]': [
        {
            "category": "fiction",
            "author": "Evelyn Waugh",
            "title": "Sword of Honour",
            "price": 12.99
        }
    ],

    '$..book[-2:]': [
        {
            "category": "fiction",
            "author": "Herman Melville",
            "title": "Moby Dick",
            "isbn": "0-553-21311-3",
            "price": 8.99
        },
        {
            "category": "fiction",
            "author": "J. R. R. Tolkien",
            "title": "The Lord of the Rings",
            "isbn": "0-395-19395-8",
            "price": 22.99
        }
    ],

    '$..book[2:]': [
        {
            "category": "fiction",
            "author": "Herman Melville",
            "title": "Moby Dick",
            "isbn": "0-553-21311-3",
            "price": 8.99
        },
        {
            "category": "fiction",
            "author": "J. R. R. Tolkien",
            "title": "The Lord of the Rings",
            "isbn": "0-395-19395-8",
            "price": 22.99
        }
    ],

    '$..book[?(@.isbn)]': [
        {
            "category": "fiction",
            "author": "Herman Melville",
            "title": "Moby Dick",
            "isbn": "0-553-21311-3",
            "price": 8.99
        },
        {
            "category": "fiction",
            "author": "J. R. R. Tolkien",
            "title": "The Lord of the Rings",
            "isbn": "0-395-19395-8",
            "price": 22.99
        }
    ],

    '$.store.book[?(@.price < 10)]': [
        {
            "category": "reference",
            "author": "Nigel Rees",
            "title": "Sayings of the Century",
            "price": 8.95
        },
        {
            "category": "fiction",
            "author": "Herman Melville",
            "title": "Moby Dick",
            "isbn": "0-553-21311-3",
            "price": 8.99
        }
    ],

    '$..*': [
        {
            "book": [
                {
                    "category": "reference",
                    "author": "Nigel Rees",
                    "title": "Sayings of the Century",
                    "price": 8.95
                },
                {
                    "category": "fiction",
                    "author": "Evelyn Waugh",
                    "title": "Sword of Honour",
                    "price": 12.99
                },
                {
                    "category": "fiction",
                    "author": "Herman Melville",
                    "title": "Moby Dick",
                    "isbn": "0-553-21311-3",
                    "price": 8.99
                },
                {
                    "category": "fiction",
                    "author": "J. R. R. Tolkien",
                    "title": "The Lord of the Rings",
                    "isbn": "0-395-19395-8",
                    "price": 22.99
                }
            ],
            "bicycle": {
                "color": "red",
                "price": 19.95
            }
        },
        10,
        [
            {
                "category": "reference",
                "author": "Nigel Rees",
                "title": "Sayings of the Century",
                "price": 8.95
            },
            {
                "category": "fiction",
                "author": "Evelyn Waugh",
                "title": "Sword of Honour",
                "price": 12.99
            },
            {
                "category": "fiction",
                "author": "Herman Melville",
                "title": "Moby Dick",
                "isbn": "0-553-21311-3",
                "price": 8.99
            },
            {
                "category": "fiction",
                "author": "J. R. R. Tolkien",
                "title": "The Lord of the Rings",
                "isbn": "0-395-19395-8",
                "price": 22.99
            }
        ],
        {
            "color": "red",
            "price": 19.95
        },
        {
            "category": "reference",
            "author": "Nigel Rees",
            "title": "Sayings of the Century",
            "price": 8.95
        },
        {
            "category": "fiction",
            "author": "Evelyn Waugh",
            "title": "Sword of Honour",
            "price": 12.99
        },
        {
            "category": "fiction",
            "author": "Herman Melville",
            "title": "Moby Dick",
            "isbn": "0-553-21311-3",
            "price": 8.99
        },
        {
            "category": "fiction",
            "author": "J. R. R. Tolkien",
            "title": "The Lord of the Rings",
            "isbn": "0-395-19395-8",
            "price": 22.99
        },
        "reference",
        "Nigel Rees",
        "Sayings of the Century",
        8.95,
        "fiction",
        "Evelyn Waugh",
        "Sword of Honour",
        12.99,
        "fiction",
        "Herman Melville",
        "Moby Dick",
        "0-553-21311-3",
        8.99,
        "fiction",
        "J. R. R. Tolkien",
        "The Lord of the Rings",
        "0-395-19395-8",
        22.99,
        "red",
        19.95
    ],

    '$..book[ ?( (@.price < 13 || $.store.bicycle.price < @.price) && @.price <=10 ) ]': [
        {
            "category": "reference",
            "author": "Nigel Rees",
            "title": "Sayings of the Century",
            "price": 8.95
        },
        {
            "category": "fiction",
            "author": "Herman Melville",
            "title": "Moby Dick",
            "isbn": "0-553-21311-3",
            "price": 8.99
        }
    ]
};

describe('compile test', () => {
    it('basic', (done) => {
        let template = jsonpath.compile('$.a');
        let result = template({'a': 1});
        if (result === 1) {
            done();
        }
    });
});

describe('selector test', () => {
    it('basic', (done) => {
        let selector = jsonpath.selector({'a': 1});
        let result = selector('$.a');
        if (result === 1) {
            done();
        }
    });
});

describe('select test', () => {
    it('basic', (done) => {
        let result = jsonpath.select({'a': 1}, '$.a');
        if (result === 1) {
            done();
        }
    });
});

describe('filter test', () => {

    function run(done, path, expected) {
        let result = jsonpath.select(jsonObj, path);
        if (JSON.stringify(result) === JSON.stringify(expected)) {
            done();
        }
    }

    for( var i in list ) {
        it(i, (done) => {
            run (done, i, list[i]);
        })
    }
});

describe('Selector test', () => {
    it('basic selectTo', (done) => {
        let result = new jsonpath.Selector().path('$.a').value({'a': 1}).selectTo();
        if (result === 1) {
            done();
        }
    });

    it('basic selectToStr', (done) => {
        let result = new jsonpath.Selector().path('$.a').value({'a': 1}).selectToStr();
        if (result === '1') {
            done();
        }
    });

    it('select', (done) => {
        let selector = new jsonpath.Selector().value(jsonObj);
        for(var i in list) {
            if(JSON.stringify(list[i]) !== selector.path(i).selectToStr()) {
                throw `fail: ${i}`;
            }
        }
        done();
    });
});

describe('README test', () => {
    it('jsonpath.Selector', (done) => {
        let jsonObj = {
            "school": {
                "friends": [
                    {"name": "친구1", "age": 20},
                    {"name": "친구2", "age": 20}
                ]
            },
            "friends": [
                {"name": "친구3", "age": 30},
                {"name": "친구4"}
            ]
        };

        let selector = new jsonpath.Selector().value(jsonObj);

        {
            let jsonObj = selector.path('$..[?(@.age >= 30)]').selectAs();
            let resultObj = [{"name": "친구3", "age": 30}];
            if(JSON.stringify(jsonObj) !== JSON.stringify(resultObj)) {
                throw 'jsonpath.Selector: $..[?(@.age >= 30)]';
            }
        }

        {
            let jsonObj = selector.path('$..[?(@.age == 20)]').selectAs();
            let resultObj = [{"name": "친구1", "age": 20}, {"name": "친구2", "age": 20}];
            if(JSON.stringify(jsonObj) !== JSON.stringify(resultObj)) {
                throw 'jsonpath.Selector: $..[?(@.age >= 20)]';
            }
        }

        {
            let jsonObj = selector.value({"friends": [ {"name": "친구5", "age": 20} ]}).selectAs();
            let resultObj = [{"name": "친구5", "age": 20}];
            if(JSON.stringify(jsonObj) !== JSON.stringify(resultObj)) {
                throw 'jsonpath.Selector: change value';
            }
        }

        {
            let jsonObj1 = selector.value(jsonObj).map(function(v) {
                let f1 = v[0];
                f1.age = 30;
                return v;
            }).get();

            let resultObj1 = [{"name": "친구1", "age": 30}, {"name": "친구2", "age": 20}];
            if(JSON.stringify(jsonObj1) !== JSON.stringify(resultObj1)) {
                throw 'jsonpath.Selector.map';
            }

            let jsonObj2 = selector.path('$..[?(@.age == 20)]').selectAs();
            let resultObj2 = [{"name": "친구2", "age": 20}];
            if(JSON.stringify(jsonObj2) !== JSON.stringify(resultObj2)) {
                throw 'jsonpath.Selector.map and then select';
            }
        }

        done();
    });

    it('jsonpath.select(json: string|object, jsonpath: string)', (done) => {
        let jsonObj = {
            "school": {
                "friends": [
                    {"name": "친구1", "age": 20},
                    {"name": "친구2", "age": 20}
                ]
            },
            "friends": [
                {"name": "친구3", "age": 30},
                {"name": "친구4"}
            ]
        };

        let ret = [
            {"name": "친구3", "age": 30},
            {"name": "친구1", "age": 20}
        ];


        let selectAsString = jsonpath.select(JSON.stringify(jsonObj), '$..friends[0]');
        let selectAsObj = jsonpath.select(jsonObj, '$..friends[0]');

        if(
            JSON.stringify(ret) !== JSON.stringify(selectAsString) ||
            JSON.stringify(ret) !== JSON.stringify(selectAsObj)
        ) {
            throw 'jsonpath.select(json: string|object, jsonpath: string)';
        }

        done();
    });

    it('jsonpath.compile(jsonpath: string)', (done) => {
        let template = jsonpath.compile('$..friends[0]');

        let jsonObj = {
            "school": {
                "friends": [
                    {"name": "친구1", "age": 20},
                    {"name": "친구2", "age": 20}
                ]
            },
            "friends": [
                {"name": "친구3", "age": 30},
                {"name": "친구4"}
            ]
        };

        let ret = [
            {"name": "친구3", "age": 30},
            {"name": "친구1", "age": 20}
        ];

        let selectAsString = template(JSON.stringify(jsonObj));
        let selectAsObj = template(jsonObj);

        if(
            JSON.stringify(ret) !== JSON.stringify(selectAsString) ||
            JSON.stringify(ret) !== JSON.stringify(selectAsObj)
        ) {
            throw 'jsonpath.compile(jsonpath: string) 1';
        }

        let jsonObj2 = {
            "school": {
                "friends": [
                    {"name": "Millicent Norman"},
                    {"name": "Vincent Cannon"}
                ]
            },
            "friends": [ {"age": 30}, {"age": 40} ]
        };

        let ret2 = [
            {"age": 30},
            {"name": "Millicent Norman"}
        ];

        let selectAsString2 = template(JSON.stringify(jsonObj2));
        let selectAsObj2 = template(jsonObj2);

        if(
            JSON.stringify(ret2) !== JSON.stringify(selectAsString2) ||
            JSON.stringify(ret2) !== JSON.stringify(selectAsObj2)
        ) {
            throw 'jsonpath.compile(jsonpath: string) 2';
        }

        done();
    });

    it('jsonpath.selector(json: string|object)', (done) => {
        let jsonObj = {
            "school": {
                "friends": [
                    {"name": "친구1", "age": 20},
                    {"name": "친구2", "age": 20}
                ]
            },
            "friends": [
                {"name": "친구3", "age": 30},
                {"name": "친구4"}
            ]
        };

        let ret1 = [
            {"name": "친구3", "age": 30},
            {"name": "친구1", "age": 20}
        ];

        let ret2 = [
            {"name": "친구4"},
            {"name": "친구2", "age": 20}
        ];

        let selector = jsonpath.selector(jsonObj);
        let select1 = selector('$..friends[0]');
        let select2 = selector('$..friends[1]');

        if(
            JSON.stringify(ret1) !== JSON.stringify(select1) ||
            JSON.stringify(ret2) !== JSON.stringify(select2)
        ) {
            throw 'jsonpath.selector(json: string|object)';
        }

        done();
    });
});