@graphistry/falcor/test/set/pathMaps/atom.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 $pathMapEnvelope = require('../support/pathMapEnvelope');

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

describe('an atom', function() {

    it('directly', function() {

        var cache = {};
        var version = 0;

        setPathMaps(
            getModel({ cache: cache, version: version++ }), [
                $pathMapEnvelope('movies["pulp-fiction"].summary', $atom({
                    title: 'Pulp Fiction',
                    url: '/movies/id/pulp-fiction'
                }))
            ]
        );

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

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

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

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

        setPathMaps(
            getModel({ lru: lru, cache: cache, version: version++ }), [
                $pathMapEnvelope('grid[0][0].summary', $atom({
                    title: 'Pulp Fiction',
                    url: '/movies/id/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': {
                    summary: $atom({
                        title: 'Pulp Fiction',
                        url: '/movies/id/pulp-fiction'
                    })
                }
            }
        }));
    });

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

        var cache = {};
        var version = 0;

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

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

        var cache = {};
        var version = 0;

        setPathMaps(
            getModel({ cache: cache, version: version++ }), [
                $pathMapEnvelope('grid', $ref('grids["id"]')),
                $pathMapEnvelope('grids["id"][0]', $ref('lists["id"]')),
                $pathMapEnvelope('lists["id"][2]', $ref('movies["reservior-dogs"]')),
                $pathMapEnvelope('grid[0][2].summary', $atom({
                    title: 'Reservior Dogs',
                    url: '/movies/id/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': {
                    summary: $atom({
                        title: 'Reservior Dogs',
                        url: '/movies/id/reservior-dogs'
                    })
                }
            }
        }));
    });

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

        var cache = {};
        var version = 0;

        setPathMaps(
            getModel({ cache: cache, version: version++ }), [
                $pathMapEnvelope('grid', $ref('grids["id"]')),
                $pathMapEnvelope('grids["id"][0]', $ref('lists["id"]')),
                $pathMapEnvelope('lists["id"][2]', $ref('movies["reservior-dogs"]')),
                $pathMapEnvelope(['grid', 0, 2, null], $atom({
                    title: 'Reservior Dogs',
                    url: '/movies/id/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({
                title: 'Reservior Dogs',
                url: '/movies/id/reservior-dogs'
            }) }
        }));
    });

    it('with an older timestamp', function() {

        var startTime = Date.now();
        var lru = new Object();
        var cache = {};
        var version = 0;

        setPathMaps(
            getModel({ lru: lru, cache: cache, version: version++ }), [
                $pathMapEnvelope('movies["pulp-fiction"].summary', $atom({
                    title: 'Pulp Fiction',
                    url: '/movies/id/pulp-fiction'
                }, { $timestamp: startTime }))
            ]
        );

        setPathMaps(
            getModel({ lru: lru, cache: cache, version: version++ }), [
                $pathMapEnvelope('movies["pulp-fiction"].summary', $atom({
                    title: 'Kill Bill',
                    url: '/movies/id/kill-bill-1'
                }, { $timestamp: startTime - 10 }))
            ]
        );

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

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

                var cache = {};
                var version = 0;
                setPathMaps(
                    getModel({ cache: cache, version: version++ }), [
                        $pathMapEnvelope('movies["pulp-fiction", "kill-bill-1", "reservior-dogs"].genres', $atom(['Crime', 'Drama', 'Thriller']))
                    ]
                );

                expect(strip(cache)).to.deep.equal(strip({
                    movies: {
                        'pulp-fiction': { 'genres': $atom(['Crime', 'Drama', 'Thriller']) },
                        'kill-bill-1': { 'genres': $atom(['Crime', 'Drama', 'Thriller']) },
                        'reservior-dogs': { 'genres': $atom(['Crime', 'Drama', 'Thriller']) }
                    }
                }));
            });
            it('through successful, short-circuit, and broken references', function() {

                var cache = {};
                var version = 0;
                setPathMaps(
                    getModel({ cache: cache, version: version++ }), [
                        $pathMapEnvelope('grid', $ref('grids["id"]')),
                        $pathMapEnvelope('grids["id"][0]', $ref('lists["id"]')),
                        $pathMapEnvelope('lists["id"][0]', $ref('movies["pulp-fiction"]')),
                        $pathMapEnvelope('lists["id"][1]', $ref('movies["kill-bill-1"]')),
                        $pathMapEnvelope('lists["id"][2]', $ref('movies["reservior-dogs"]')),
                        $pathMapEnvelope('movies["kill-bill-1"].genres', $atom()),
                        $pathMapEnvelope('grid[0][0, 1, 2].genres', $atom(['Crime', 'Drama', 'Thriller']))
                    ]
                );

                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': { 'genres': $atom(['Crime', 'Drama', 'Thriller']) },
                        'kill-bill-1': { 'genres': $atom(['Crime', 'Drama', 'Thriller']) },
                        'reservior-dogs': { 'genres': $atom(['Crime', 'Drama', 'Thriller']) }
                    }
                }));
            });
        });
        describe('via range', function() {
            it('to:2', function() {

                var cache = {};
                var version = 0;
                setPathMaps(
                    getModel({ cache: cache, version: version++ }), [
                        $pathMapEnvelope('grid', $ref('grids["id"]')),
                        $pathMapEnvelope('grids["id"][0]', $ref('lists["id"]')),
                        $pathMapEnvelope('lists["id"][0]', $ref('movies["pulp-fiction"]')),
                        $pathMapEnvelope('lists["id"][1]', $ref('movies["kill-bill-1"]')),
                        $pathMapEnvelope('lists["id"][2]', $ref('movies["reservior-dogs"]')),
                        $pathMapEnvelope('movies["kill-bill-1"].genres', $atom()),
                        $pathMapEnvelope('grid[0][0..2].genres', $atom(['Crime', 'Drama', 'Thriller']))
                    ]
                );

                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': { 'genres': $atom(['Crime', 'Drama', 'Thriller']) },
                        'kill-bill-1': { 'genres': $atom(['Crime', 'Drama', 'Thriller']) },
                        'reservior-dogs': { 'genres': $atom(['Crime', 'Drama', 'Thriller']) }
                    }
                }));
            });
            it('from:1, to:2', function() {

                var cache = {};
                var version = 0;
                setPathMaps(
                    getModel({ cache: cache, version: version++ }), [
                        $pathMapEnvelope('grid', $ref('grids["id"]')),
                        $pathMapEnvelope('grids["id"][0]', $ref('lists["id"]')),
                        $pathMapEnvelope('lists["id"][1]', $ref('movies["kill-bill-1"]')),
                        $pathMapEnvelope('lists["id"][2]', $ref('movies["reservior-dogs"]')),
                        $pathMapEnvelope('movies["kill-bill-1"].genres', $atom()),
                        $pathMapEnvelope('grid[0][1..2].genres', $atom(['Crime', 'Drama', 'Thriller']))
                    ]
                );

                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': { 'genres': $atom(['Crime', 'Drama', 'Thriller']) },
                        'reservior-dogs': { 'genres': $atom(['Crime', 'Drama', 'Thriller']) }
                    }
                }));
            });
            it('length:3', function() {

                var cache = {};
                var version = 0;
                setPathMaps(
                    getModel({ cache: cache, version: version++ }), [
                        $pathMapEnvelope('grid', $ref('grids["id"]')),
                        $pathMapEnvelope('grids["id"][0]', $ref('lists["id"]')),
                        $pathMapEnvelope('lists["id"][0]', $ref('movies["pulp-fiction"]')),
                        $pathMapEnvelope('lists["id"][1]', $ref('movies["kill-bill-1"]')),
                        $pathMapEnvelope('lists["id"][2]', $ref('movies["reservior-dogs"]')),
                        $pathMapEnvelope('movies["kill-bill-1"].genres', $atom()),
                        $pathMapEnvelope(['grid', 0, {length: 3}, 'genres'], $atom(['Crime', 'Drama', 'Thriller']))
                    ]
                );

                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': { 'genres': $atom(['Crime', 'Drama', 'Thriller']) },
                        'kill-bill-1': { 'genres': $atom(['Crime', 'Drama', 'Thriller']) },
                        'reservior-dogs': { 'genres': $atom(['Crime', 'Drama', 'Thriller']) }
                    }
                }));
            });
            it('from:1, length:2', function() {

                var cache = {};
                var version = 0;
                setPathMaps(
                    getModel({ cache: cache, version: version++ }), [
                        $pathMapEnvelope('grid', $ref('grids["id"]')),
                        $pathMapEnvelope('grids["id"][0]', $ref('lists["id"]')),
                        $pathMapEnvelope('lists["id"][1]', $ref('movies["kill-bill-1"]')),
                        $pathMapEnvelope('lists["id"][2]', $ref('movies["reservior-dogs"]')),
                        $pathMapEnvelope('movies["kill-bill-1"].genres', $atom()),
                        $pathMapEnvelope(['grid', 0, {from: 1, length: 2}, 'genres'], $atom(['Crime', 'Drama', 'Thriller']))
                    ]
                );

                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': { 'genres': $atom(['Crime', 'Drama', 'Thriller']) },
                        'reservior-dogs': { 'genres': $atom(['Crime', 'Drama', 'Thriller']) }
                    }
                }));
            });
            it('[length:3]', function() {

                var cache = {};
                var version = 0;
                setPathMaps(
                    getModel({ cache: cache, version: version++ }), [
                        $pathMapEnvelope('grid', $ref('grids["id"]')),
                        $pathMapEnvelope('grids["id"][0]', $ref('lists["id"]')),
                        $pathMapEnvelope('lists["id"][0]', $ref('movies["pulp-fiction"]')),
                        $pathMapEnvelope('lists["id"][1]', $ref('movies["kill-bill-1"]')),
                        $pathMapEnvelope('lists["id"][2]', $ref('movies["reservior-dogs"]')),
                        $pathMapEnvelope('movies["kill-bill-1"].genres', $atom()),
                        $pathMapEnvelope(['grid', 0, [{length: 3}], 'genres'], $atom(['Crime', 'Drama', 'Thriller']))
                    ]
                );

                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': { 'genres': $atom(['Crime', 'Drama', 'Thriller']) },
                        'kill-bill-1': { 'genres': $atom(['Crime', 'Drama', 'Thriller']) },
                        'reservior-dogs': { 'genres': $atom(['Crime', 'Drama', 'Thriller']) }
                    }
                }));
            });
        });
    });
});