falcor/test/invalidate/pathSets.spec.js

A JavaScript library for efficient data fetching.

var $ref = require("falcor-json-graph").ref;
var strip = require("../set/support/strip");
var $atom = require("falcor-json-graph").atom;
var $path = require("falcor-path-syntax").fromPath;
var $pathValue = require("falcor-json-graph").pathValue;

var getModel = require("../set/support/getModel");
var setPathValues = require("../../lib/set/setPathValues");
var invalidatePathSets = require("../../lib/invalidate/invalidatePathSets");

describe("invalidatePathSets", 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")
        ]);

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

        expect(strip(cache)).toEqual(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")
            ]
        );

        invalidatePathSets(
            getModel({ lru: lru, cache: cache, version: version++ }), [
                $path("grid[0][0].title")
            ]
        );

        expect(strip(cache)).toEqual(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())
            ]
        );

        invalidatePathSets(
            getModel({ lru: lru, cache: cache, version: version++ }), [
                $path("grid[0][1].title")
            ]
        );

        expect(strip(cache)).toEqual(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']"))
            ]
        );

        invalidatePathSets(
            getModel({ lru: lru, cache: cache, version: version++ }), [
                $path("grid[0][2].title")
            ]
        );

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

    it("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")
            ]
        );

        invalidatePathSets(
            getModel({ lru: lru, cache: cache, version: version++ }), [
                $path(["grid", 0, 2, null])
            ]
        );

        expect(strip(cache)).toEqual(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")
                    ]
                );

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

                expect(strip(cache)).toEqual(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())
                    ]
                );

                invalidatePathSets(
                    getModel({ lru: lru, cache: cache, version: version++ }), [
                        $path("grid[0][0, 1, 2].director")
                    ]
                );

                expect(strip(cache)).toEqual(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())
                    ]
                );

                invalidatePathSets(
                    getModel({ lru: lru, cache: cache, version: version++ }), [
                        $path("grid[0][0..2].director")
                    ]
                );

                expect(strip(cache)).toEqual(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())
                    ]
                );

                invalidatePathSets(
                    getModel({ lru: lru, cache: cache, version: version++ }), [
                        $path("grid[0][1..2].director")
                    ]
                );

                expect(strip(cache)).toEqual(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())
                    ]
                );

                invalidatePathSets(
                    getModel({ lru: lru, cache: cache, version: version++ }), [
                        $path(["grid", 0, {length: 3}, "director"])
                    ]
                );

                expect(strip(cache)).toEqual(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())
                    ]
                );

                invalidatePathSets(
                    getModel({ lru: lru, cache: cache, version: version++ }), [
                        $path(["grid", 0, {from: 1, length: 2}, "director"])
                    ]
                );

                expect(strip(cache)).toEqual(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())
                    ]
                );

                invalidatePathSets(
                    getModel({ lru: lru, cache: cache, version: version++ }), [
                        $path(["grid", 0, [{length: 3}], "director"])
                    ]
                );

                expect(strip(cache)).toEqual(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']") }
                    }
                }));
            });
        });
    });
});