alib-aquery/test.js

alib-aquery is a high performance, chainable array querying library that is extensible to support any type of filtering. It supports filter (in place of where), limit, offset and order by. It is inspired by the SQL SELECT statement but for arrays of objec

'use strict';

/* deps:mocha */
var assert = require('assert');

//init
var aquery = require('./');

//vars
var data = [
    { color: 'blue', size: 44 },
    { color: 'green', size: 12 },
    { color: 'red', size: 18 },
    { color: 'blue', size: 9 },
    { color: 'blue', size: 4 },
    { color: 'blue', size: 12 },
];

//data size + 10
var datat1 = [
    { color: 'blue', size: 44 },
    { color: 'green', size: 12 },
    { color: 'red', size: 18 },
    { color: 'blue', size: 12 },
];

//data size + 10 and blue
var datat2 = [
    { color: 'blue', size: 44 },
    { color: 'blue', size: 12 },
];

var data2 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
var data2t1 = [6, 7, 8, 9, 10, 6, 7, 8, 9, 10];
var data2t2 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
var data2t3 = [4, 5, 6, 7, 8, 9, 10, 1, 2, 3];

var data3 = [
    { color: 'blue', size: 44 },
    { color: 'green', size: 12 },
    { color: 'red', size: 18 },
    { color: 'blue', size: 9 },
    { color: 'blue', size: 4 },
    { color: 'blue', size: 12 },
    { color: 'black', size: 12 },
];
var data3t1 = [
    { color: 'blue', size: 44 },
    { color: 'blue', size: 9 },
    { color: 'blue', size: 4 },
    { color: 'blue', size: 12 },
    { color: 'black', size: 12 },
];
var data3t2 = [
    { color: 'red', size: 18 }
];

var data4 = [
    { color: 'blue' },
    { color: 'green'},
    { color: 'red'},
    { color: 'blue'},
    { color: 'orange'},
    { color: 'purple'},
    { color: 'rouge'},
];
var data4t1 = [
    { color: 'blue' },
    { color: 'blue'},
    { color: 'green'},
    { color: 'orange'},
    { color: 'purple'},
    { color: 'red'},
    { color: 'rouge'},
];

var data5 = [
    { color: 'blue' , size: 9 },
    { color: 'green', size: 9 },
    { color: 'red', size: 9 },
    { color: 'blue', size: 9 },
    { color: 'orange', size: 9 },
    { color: 'purple', size: 9 },
    { color: 'rouge', size: 9 },

    { color: 'blue' , size: 15 },
    { color: 'green', size: 16 },
    { color: 'red', size: 18 },
    { color: 'blue', size: 4 },
    { color: 'orange', size: 11 },
    { color: 'purple', size: 23 },
    { color: 'rouge', size: 44 },    
];
var data5t1 = [
    { color: 'blue' , size: 15 },
    { color: 'green', size: 16 },
    { color: 'orange', size: 11},
    { color: 'purple', size: 23},
    { color: 'red', size: 18},
    { color: 'rouge', size: 44},
];
var data5t2 = [
    { color: 'rouge', size: 44},
    { color: 'red', size: 18},
    { color: 'purple', size: 23},
    { color: 'orange', size: 11},
    { color: 'green', size: 16 },
    { color: 'blue' , size: 15 },
];
var data5t3 = [
    { color: 'purple', size: 23},
    { color: 'orange', size: 11},
    { color: 'green', size: 16 },
];
var data5t4 = [
    { color: 'orange', size: 11},
    { color: 'blue' , size: 15 },
    { color: 'green', size: 16 },
    { color: 'red', size: 18},
    { color: 'purple', size: 23},
    { color: 'rouge', size: 44},
];
var data5t5 = [
    { color: 'rouge', size: 44},
    { color: 'purple', size: 23},
    { color: 'red', size: 18},
    { color: 'green', size: 16 },
    { color: 'blue' , size: 15 },
    { color: 'orange', size: 11},
];

describe('#aquery(data).filter(\'size\', \'gt\', 10).run()', function () {
    it('should return an array of items having the prop \'size\' greater than 10:', function () {
        var result = aquery(data).filter('size', 'gt', 10).run();
        assert.deepEqual(result, datat1);
    });
});

describe('#aquery(data).filter(\'size\', \'gt\', 10).filter(\'color\', \'eq\', \'blue\').run()', function () {
    it('should return an array of items having the prop \'size\' greater than 10 and color blue:', function () {
        var result = aquery(data).filter('size', 'gt', 10).filter('color', 'eq', 'blue').run();
        assert.deepEqual(result, datat2);
    });
});

describe('#aquery(data).run()', function () {
    it('should return original array:', function () {
        var result = aquery(data).run();
        assert.deepEqual(result, data);
    });
});

describe('#aquery(data2).filter(null, \'gt\', 5).run()', function () {
    it('should return an array of items having value greater than 5:', function () {
        var result = aquery(data2).filter(null, 'gt', 5).run();
        assert.deepEqual(result, data2t1);
    });
});

describe('#aquery(data2).limit(10).run()', function () {
    it('should return first 10 items of array:', function () {
        var result = aquery(data2).limit(10).run();
        assert.deepEqual(result, data2t2);
    });
});

describe('#aquery(data2).offset(3).limit(10).run()', function () {
    it('should return items 4 to 14 of array:', function () {
        var result = aquery(data2)
            .offset(3)
            .limit(10)
            .run();
        assert.deepEqual(result, data2t3);
    });
});

describe('#aquery(data3).filter(\'color\', \'contains\', \'bl\').run()', function () {
    it('should return items with color prop containing \'bl\':', function () {
        var result = aquery(data3).filter('color', 'contains', 'bl').run();
        assert.deepEqual(result, data3t1);
    });
});

describe('#aquery(data3).filter(\'color\', \'gt\', 5).run()', function () {
    it('should return empty array as can\'t do gt than on string:', function () {
        var result = aquery(data3).filter('color', 'gt', 5).run();
        assert.deepEqual(result, []);
    });
});

describe('#aquery(data4).orderBy(\'color\').run()', function () {
    it('should return items ordered by color:', function () {
        var result = aquery(data4).orderBy('color', 'desc').run();
        assert.deepEqual(result, data4t1);
    });
});

describe('#aquery(data5).filter(\'size\', \'gt\', 10).orderBy(\'color\', \'desc\').run()', function () {
    it('should return items ordered by color with size greater than 10:', function () {
        var result = aquery(data5).filter('size', 'gt', 10).orderBy('color', 'desc').run();
        assert.deepEqual(result, data5t1);
    });
});

describe('#aquery(data5).filter(\'size\', \'gt\', 10).orderBy(\'color\', \'asc\').run()', function () {
    it('should return items ordered by color ASC with size greater than 10:', function () {
        var result = aquery(data5).filter('size', 'gt', 10).orderBy('color', 'asc').run();
        assert.deepEqual(result, data5t2);
    });
});

describe('#aquery(data5).filter(\'size\', \'gt\', 10).orderBy(\'color\', \'asc\').offset(2).limit(3).run()', function () {
    it('should return items (offset 2 limit 3) ordered by color ASC with size greater than 10:', function () {
        var result = aquery(data5).filter('size', 'gt', 10).orderBy('color', 'asc').offset(2).limit(3).run();
        assert.deepEqual(result, data5t3);
    });
});

describe('#aquery(data5).filter(\'size\', \'gt\', 10).orderBy(\'size\', \'desc\').run()', function () {
    it('should return items ordered by size DESC with size greater than 10:', function () {
        var result = aquery(data5).filter('size', 'gt', 10).orderBy('size', 'desc').run();
        assert.deepEqual(result, data5t4);
    });
});

describe('#aquery(data5).filter(\'size\', \'gt\', 10).orderBy(\'size\', \'asc\').run()', function () {
    it('should return items ordered by size ASC with size greater than 10:', function () {
        var result = aquery(data5).filter('size', 'gt', 10).orderBy('size', 'asc').run();
        assert.deepEqual(result, data5t5);
    });
});

describe('#aquery(data3).registerFilter({function})', function () {
    it('should add a filter function to aquery:', function () {
        var result = aquery().registerFilter('lengthof', (prop, value) => {
            return prop.length === value ? true : false;
        });
        assert.deepEqual(result, null);
    });
});

describe('#aquery(data3).filter(\'color\', \'lengthof\', 3).run()', function () {
    it('should return items with color props 3 chars long:', function () {
        var result = aquery(data3).filter('color', 'lengthof', 3).run();
        assert.deepEqual(result, data3t2);
    });
});

describe('#filter_gt(a,b)', function () {
    it('should not be accessable in global scope:', function () {
        try {
            var result = filter_gt(5, 7);
        }
        catch (err) {
            assert.equal(true, true);
        }
    });
});