@graphistry/falcor/test/set/jsonGraphs/primitive.spec.js

A JavaScript library for efficient data fetching.

var $ref = require('@graphistry/falcor-json-graph').ref;
var strip = require('../support/strip');
var $atom = require('@graphistry/falcor-json-graph').atom;
var $pathValue = require('@graphistry/falcor-json-graph').pathValue;
var $jsonGraph = require('../support/jsonGraph');
var $jsonGraphEnvelope = require('../support/jsonGraphEnvelope');

var expect = require('chai').expect;
var getModel = require('../support/getModel');
var setJSONGraphs = require('../../../lib/cache/set/setJSONGraphs');

describe('a primitive value', function() {

    it('should set a null object into an empty cache wrapping it in an atom.', function() {
        var cache = {};
        var version = 0;
        var jsonGraphEnvelope = {
            jsonGraph: {
                a: {
                    b: null
                }
            },
            paths: [['a', 'b']]
        };

        setJSONGraphs(
            getModel({cache: cache, version: version++}),
            [jsonGraphEnvelope]);

        expect(strip(cache)).to.deep.equal(strip({
            a: {
                b: $atom(null)
            }
        }));
    });

    it('throws with a `null` key in a branch position', function() {

        var lru = new Object();
        var cache = {};
        var version = 0;
        var errored = false;

        try {
            setJSONGraphs(
                getModel({ lru: lru, cache: cache, version: version++ }), [
                $jsonGraphEnvelope([
                    $pathValue(['movies', null, 'pulp-fiction', 'title'], 'Pulp Fiction')
                ])]
            );
        } catch(e) {
            expect(e.message).to.equal('`null` is not allowed in branch key positions.');
        }

        errored = true;
        expect(errored).to.be.true;
    });

    it('directly', function() {

        var cache = {};
        var version = 0;

        setJSONGraphs(
            getModel({ cache: cache, version: version++ }), [
            $jsonGraphEnvelope([
                $pathValue('movies["pulp-fiction"].title', 'Pulp Fiction')
            ])]
        );

        expect(strip(cache)).to.deep.equal(strip({
            movies: {
                'pulp-fiction': {
                    'title': $atom('Pulp Fiction')
                }
            }
        }));
    });

    it('through a reference', function() {

        var lru = new Object();
        var cache = {};
        var version = 0;

        setJSONGraphs(
            getModel({ lru: lru, cache: cache, version: version++ }), [
            $jsonGraphEnvelope([
                $pathValue('grid', $ref('grids["id"]')),
                $pathValue('grids["id"][0]', $ref('lists["id"]')),
                $pathValue('lists["id"][0]', $ref('movies["pulp-fiction"]')),
                $pathValue('movies["pulp-fiction"]', 'Pulp Fiction')
            ])]
        );

        setJSONGraphs(
            getModel({ lru: lru, cache: cache, version: version++ }), [{
                paths: [['grid', 0, 0, 'title']],
                jsonGraph: $jsonGraph([
                    $pathValue('movies["pulp-fiction"].title', 'Pulp Fiction')
                ])
            }]
        );

        expect(strip(cache)).to.deep.equal(strip({
            grid: $ref('grids["id"]'),
            grids: { id: { 0: $ref('lists["id"]') } },
            lists: { id: { 0: $ref('movies["pulp-fiction"]') } },
            movies: {
                "pulp-fiction": {
                    title: $atom('Pulp Fiction')
                }
            }
        }));
    });

    it('through a reference that lands on an atom', function() {

        var cache = {};
        var version = 0;

        setJSONGraphs(
            getModel({ cache: cache, version: version++ }), [
            $jsonGraphEnvelope([
                $pathValue('grid', $ref('grids["id"]')),
                $pathValue('grids["id"][0]', $ref('lists["id"]')),
                $pathValue('lists["id"][1]', $ref('movies["kill-bill-1"]')),
                $pathValue('movies["kill-bill-1"].title', $atom()),
                $pathValue('grid[0][1].title', 'Kill Bill Vol. 1')
            ])]
        );

        expect(strip(cache)).to.deep.equal(strip({
            grid: $ref('grids["id"]'),
            grids: { id: { 0: $ref('lists["id"]') } },
            lists: { id: { 1: $ref('movies["kill-bill-1"]') } },
            movies: {
                'kill-bill-1': {
                    title: $atom('Kill Bill Vol. 1')
                }
            }
        }));
    });


    it('through a broken reference', function() {

        var cache = {};
        var version = 0;

        setJSONGraphs(
            getModel({ cache: cache, version: version++ }), [
            $jsonGraphEnvelope([
                $pathValue('grid', $ref('grids["id"]')),
                $pathValue('grids["id"][0]', $ref('lists["id"]')),
                $pathValue('lists["id"][2]', $ref('movies["reservior-dogs"]'))
            ])]
        );

        setJSONGraphs(
            getModel({ cache: cache, version: version++ }), [{
                paths: [['grid', 0, 2, 'title']],
                jsonGraph: $jsonGraph([
                    $pathValue('movies["reservior-dogs"].title', 'Reservior Dogs')
                ])
            }]
        );

        expect(strip(cache)).to.deep.equal(strip({
            grid: $ref('grids["id"]'),
            grids: { id: { 0: $ref('lists["id"]') } },
            lists: { id: { 2: $ref('movies["reservior-dogs"]') } },
            movies: {
                'reservior-dogs': {
                    title: $atom('Reservior Dogs')
                }
            }
        }));
    });

    it('through a reference with a null last key', function() {

        var cache = {};
        var version = 0;

        setJSONGraphs(
            getModel({ cache: cache, version: version++ }), [
            $jsonGraphEnvelope([
                $pathValue('grid', $ref('grids["id"]')),
                $pathValue('grids["id"][0]', $ref('lists["id"]')),
                $pathValue('lists["id"][2]', $ref('movies["reservior-dogs"]'))
            ])]
        );

        setJSONGraphs(
            getModel({ cache: cache, version: version++ }), [{
                paths: [['grid', 0, 2, null]],
                jsonGraph: $jsonGraph([
                    $pathValue('movies["reservior-dogs"]', 'Reservior Dogs')
                ])
            }]
        );

        expect(strip(cache)).to.deep.equal(strip({
            grid: $ref('grids["id"]'),
            grids: { id: { 0: $ref('lists["id"]') } },
            lists: { id: { 2: $ref('movies["reservior-dogs"]') } },
            movies: { 'reservior-dogs': $atom('Reservior Dogs') }
        }));
    });

    describe('in multiple places', function() {
        describe('via keyset', function() {
            it('directly', function() {

                var cache = {};
                var version = 0;

                setJSONGraphs(
                    getModel({ cache: cache, version: version++ }), [
                    $jsonGraphEnvelope([
                        $pathValue('movies["pulp-fiction", "kill-bill-1", "reservior-dogs"].director', 'Quentin Tarantino')
                    ])]
                );

                expect(strip(cache)).to.deep.equal(strip({
                    movies: {
                        "pulp-fiction": { 'director': $atom('Quentin Tarantino') },
                        'kill-bill-1': { 'director': $atom('Quentin Tarantino') },
                        'reservior-dogs': { 'director': $atom('Quentin Tarantino') }
                    }
                }));
            });
            it('through successful, short-circuit, and broken references', function() {

                var cache = {};
                var version = 0;

                setJSONGraphs(
                    getModel({ cache: cache, version: version++ }), [
                    $jsonGraphEnvelope([
                        $pathValue('grid', $ref('grids["id"]')),
                        $pathValue('grids["id"][0]', $ref('lists["id"]')),
                        $pathValue('lists["id"][0]', $ref('movies["pulp-fiction"]')),
                        $pathValue('lists["id"][1]', $ref('movies["kill-bill-1"]')),
                        $pathValue('lists["id"][2]', $ref('movies["reservior-dogs"]')),
                        $pathValue('movies["kill-bill-1"].director', $atom()),
                        $pathValue('grid[0][0, 1, 2].director', 'Quentin Tarantino')
                    ])]
                );

                expect(strip(cache)).to.deep.equal(strip({
                    grid: $ref('grids["id"]'),
                    grids: { id: { 0: $ref('lists["id"]') } },
                    lists: { id: {
                        0: $ref('movies["pulp-fiction"]'),
                        1: $ref('movies["kill-bill-1"]'),
                        2: $ref('movies["reservior-dogs"]') }
                    },
                    movies: {
                        "pulp-fiction": { 'director': $atom('Quentin Tarantino') },
                        'kill-bill-1': { 'director': $atom('Quentin Tarantino') },
                        'reservior-dogs': { 'director': $atom('Quentin Tarantino') }
                    }
                }));
            });
        });
        describe('via range', function() {
            it('to:2', function() {

                var cache = {};
                var version = 0;

                setJSONGraphs(
                    getModel({ cache: cache, version: version++ }), [
                    $jsonGraphEnvelope([
                        $pathValue('grid', $ref('grids["id"]')),
                        $pathValue('grids["id"][0]', $ref('lists["id"]')),
                        $pathValue('lists["id"][0]', $ref('movies["pulp-fiction"]')),
                        $pathValue('lists["id"][1]', $ref('movies["kill-bill-1"]')),
                        $pathValue('lists["id"][2]', $ref('movies["reservior-dogs"]')),
                        $pathValue('movies["kill-bill-1"].director', $atom()),
                        $pathValue('grid[0][0..2].director', 'Quentin Tarantino')
                    ])]
                );

                expect(strip(cache)).to.deep.equal(strip({
                    grid: $ref('grids["id"]'),
                    grids: { id: { 0: $ref('lists["id"]') } },
                    lists: { id: {
                        0: $ref('movies["pulp-fiction"]'),
                        1: $ref('movies["kill-bill-1"]'),
                        2: $ref('movies["reservior-dogs"]') }
                    },
                    movies: {
                        "pulp-fiction": { 'director': $atom('Quentin Tarantino') },
                        'kill-bill-1': { 'director': $atom('Quentin Tarantino') },
                        'reservior-dogs': { 'director': $atom('Quentin Tarantino') }
                    }
                }));
            });
            it('from:1, to:2', function() {

                var cache = {};
                var version = 0;

                setJSONGraphs(
                    getModel({ cache: cache, version: version++ }), [
                    $jsonGraphEnvelope([
                        $pathValue('grid', $ref('grids["id"]')),
                        $pathValue('grids["id"][0]', $ref('lists["id"]')),
                        $pathValue('lists["id"][1]', $ref('movies["kill-bill-1"]')),
                        $pathValue('lists["id"][2]', $ref('movies["reservior-dogs"]')),
                        $pathValue('movies["kill-bill-1"].director', $atom()),
                        $pathValue('grid[0][1..2].director', 'Quentin Tarantino')
                    ])]
                );

                expect(strip(cache)).to.deep.equal(strip({
                    grid: $ref('grids["id"]'),
                    grids: { id: { 0: $ref('lists["id"]') } },
                    lists: { id: {
                        1: $ref('movies["kill-bill-1"]'),
                        2: $ref('movies["reservior-dogs"]') }
                    },
                    movies: {
                        'kill-bill-1': { 'director': $atom('Quentin Tarantino') },
                        'reservior-dogs': { 'director': $atom('Quentin Tarantino') }
                    }
                }));
            });
            it('length:3', function() {

                var cache = {};
                var version = 0;

                setJSONGraphs(
                    getModel({ cache: cache, version: version++ }), [
                    $jsonGraphEnvelope([
                        $pathValue('grid', $ref('grids["id"]')),
                        $pathValue('grids["id"][0]', $ref('lists["id"]')),
                        $pathValue('lists["id"][0]', $ref('movies["pulp-fiction"]')),
                        $pathValue('lists["id"][1]', $ref('movies["kill-bill-1"]')),
                        $pathValue('lists["id"][2]', $ref('movies["reservior-dogs"]')),
                        $pathValue('movies["kill-bill-1"].director', $atom()),
                        $pathValue(['grid', 0, {length: 3}, 'director'], 'Quentin Tarantino')
                    ])]
                );

                expect(strip(cache)).to.deep.equal(strip({
                    grid: $ref('grids["id"]'),
                    grids: { id: { 0: $ref('lists["id"]') } },
                    lists: { id: {
                        0: $ref('movies["pulp-fiction"]'),
                        1: $ref('movies["kill-bill-1"]'),
                        2: $ref('movies["reservior-dogs"]') }
                    },
                    movies: {
                        "pulp-fiction": { 'director': $atom('Quentin Tarantino') },
                        'kill-bill-1': { 'director': $atom('Quentin Tarantino') },
                        'reservior-dogs': { 'director': $atom('Quentin Tarantino') }
                    }
                }));
            });
            it('from:1, length:2', function() {

                var cache = {};
                var version = 0;

                setJSONGraphs(
                    getModel({ cache: cache, version: version++ }), [
                    $jsonGraphEnvelope([
                        $pathValue('grid', $ref('grids["id"]')),
                        $pathValue('grids["id"][0]', $ref('lists["id"]')),
                        $pathValue('lists["id"][1]', $ref('movies["kill-bill-1"]')),
                        $pathValue('lists["id"][2]', $ref('movies["reservior-dogs"]')),
                        $pathValue('movies["kill-bill-1"].director', $atom()),
                        $pathValue(['grid', 0, {from: 1, length: 2}, 'director'], 'Quentin Tarantino')
                    ])]
                );

                expect(strip(cache)).to.deep.equal(strip({
                    grid: $ref('grids["id"]'),
                    grids: { id: { 0: $ref('lists["id"]') } },
                    lists: { id: {
                        1: $ref('movies["kill-bill-1"]'),
                        2: $ref('movies["reservior-dogs"]') }
                    },
                    movies: {
                        'kill-bill-1': { 'director': $atom('Quentin Tarantino') },
                        'reservior-dogs': { 'director': $atom('Quentin Tarantino') }
                    }
                }));
            });
            it('[length:3]', function() {

                var cache = {};
                var version = 0;

                setJSONGraphs(
                    getModel({ cache: cache, version: version++ }), [
                    $jsonGraphEnvelope([
                        $pathValue('grid', $ref('grids["id"]')),
                        $pathValue('grids["id"][0]', $ref('lists["id"]')),
                        $pathValue('lists["id"][0]', $ref('movies["pulp-fiction"]')),
                        $pathValue('lists["id"][1]', $ref('movies["kill-bill-1"]')),
                        $pathValue('lists["id"][2]', $ref('movies["reservior-dogs"]')),
                        $pathValue('movies["kill-bill-1"].director', $atom()),
                        $pathValue(['grid', 0, [{length: 3}], 'director'], 'Quentin Tarantino')
                    ])]
                );

                expect(strip(cache)).to.deep.equal(strip({
                    grid: $ref('grids["id"]'),
                    grids: { id: { 0: $ref('lists["id"]') } },
                    lists: { id: {
                        0: $ref('movies["pulp-fiction"]'),
                        1: $ref('movies["kill-bill-1"]'),
                        2: $ref('movies["reservior-dogs"]') }
                    },
                    movies: {
                        "pulp-fiction": { 'director': $atom('Quentin Tarantino') },
                        'kill-bill-1': { 'director': $atom('Quentin Tarantino') },
                        'reservior-dogs': { 'director': $atom('Quentin Tarantino') }
                    }
                }));
            });
        });
    });
});