@graphistry/falcor/test/invalidate/pathMaps/index.js

A JavaScript library for efficient data fetching.

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

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

describe('invalidatePathMaps', function() {

    it('directly', function() {

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

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

        invalidatePathMaps(
            getModel({ lru: lru, cache: cache, version: version++ }), [
            $pathMapEnvelope('movies["pulp-fiction"].title')
        ]);

        expect(strip(cache)).to.deep.equal(strip({}));
    });

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

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

        setPathValues(
            getModel({ lru: lru, cache: cache, version: version++ }), [
                $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')
            ]
        );

        invalidatePathMaps(
            getModel({ lru: lru, cache: cache, version: version++ }), [
                $pathMapEnvelope('grid[0][0].title')
            ]
        );

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

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

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

        setPathValues(
            getModel({ lru: lru, cache: cache, version: version++ }), [
                $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())
            ]
        );

        invalidatePathMaps(
            getModel({ lru: lru, cache: cache, version: version++ }), [
                $pathMapEnvelope('grid[0][1].title')
            ]
        );

        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"]') } }
        }));
    });


    it('short-circuits on a broken reference', function() {

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

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

        invalidatePathMaps(
            getModel({ lru: lru, cache: cache, version: version++ }), [
                $pathMapEnvelope('grid[0][2].title')
            ]
        );

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

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

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

        setPathValues(
            getModel({ lru: lru, cache: cache, version: version++ }), [
                $pathValue('grid', $ref('grids["id"]')),
                $pathValue('grids["id"][0]', $ref('lists["id"]')),
                $pathValue('lists["id"][2]', $ref('movies["reservior-dogs"]')),
                $pathValue('movies["reservior-dogs"].title', 'Reservior Dogs')
            ]
        );

        invalidatePathMaps(
            getModel({ lru: lru, cache: cache, version: version++ }), [
                $pathMapEnvelope(['grid', 0, 2, null])
            ]
        );

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

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

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

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

                invalidatePathMaps(
                    getModel({ lru: lru, cache: cache, version: version++ }), [
                        $pathMapEnvelope('movies["pulp-fiction", "kill-bill-1", "reservior-dogs"].director')
                    ]
                );

                expect(strip(cache)).to.deep.equal(strip({}));
            });
            it('through successful, short-circuit, and broken references', function() {

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

                setPathValues(
                    getModel({ lru: lru, cache: cache, version: version++ }), [
                        $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())
                    ]
                );

                invalidatePathMaps(
                    getModel({ lru: lru, cache: cache, version: version++ }), [
                        $pathMapEnvelope('grid[0][0, 1, 2].director')
                    ]
                );

                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"]') }
                    }
                }));
            });
        });
        describe('via range', function() {
            it('to:2', function() {

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

                setPathValues(
                    getModel({ lru: lru, cache: cache, version: version++ }), [
                        $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())
                    ]
                );

                invalidatePathMaps(
                    getModel({ lru: lru, cache: cache, version: version++ }), [
                        $pathMapEnvelope('grid[0][0..2].director')
                    ]
                );

                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"]') }
                    }
                }));
            });
            it('from:1, to:2', function() {

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

                setPathValues(
                    getModel({ lru: lru, cache: cache, version: version++ }), [
                        $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())
                    ]
                );

                invalidatePathMaps(
                    getModel({ lru: lru, cache: cache, version: version++ }), [
                        $pathMapEnvelope('grid[0][1..2].director')
                    ]
                );

                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"]') }
                    }
                }));
            });
            it('length:3', function() {

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

                setPathValues(
                    getModel({ lru: lru, cache: cache, version: version++ }), [
                        $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())
                    ]
                );

                invalidatePathMaps(
                    getModel({ lru: lru, cache: cache, version: version++ }), [
                        $pathMapEnvelope(['grid', 0, {length: 3}, 'director'])
                    ]
                );

                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"]') }
                    }
                }));
            });
            it('from:1, length:2', function() {

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

                setPathValues(
                    getModel({ lru: lru, cache: cache, version: version++ }), [
                        $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())
                    ]
                );

                invalidatePathMaps(
                    getModel({ lru: lru, cache: cache, version: version++ }), [
                        $pathMapEnvelope(['grid', 0, {from: 1, length: 2}, 'director'])
                    ]
                );

                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"]') }
                    }
                }));
            });
            it('[length:3]', function() {

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

                setPathValues(
                    getModel({ lru: lru, cache: cache, version: version++ }), [
                        $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())
                    ]
                );

                invalidatePathMaps(
                    getModel({ lru: lru, cache: cache, version: version++ }), [
                        $pathMapEnvelope(['grid', 0, [{length: 3}], 'director'])
                    ]
                );

                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"]') }
                    }
                }));
            });
        });
    });
});