import { defined } from "../../Source/Cesium.js";
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import { GeographicTilingScheme } from "../../Source/Cesium.js";
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import { QuadtreeTile } from "../../Source/Cesium.js";
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import { QuadtreeTileLoadState } from "../../Source/Cesium.js";
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import { TileReplacementQueue } from "../../Source/Cesium.js";
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describe("Scene/TileReplacementQueue", function () {
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function Tile(num, loadedState, upsampledState) {
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this._num = num;
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this.state = QuadtreeTileLoadState.LOADING;
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this.data = {};
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this.data.imagery = [];
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if (defined(loadedState)) {
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this.data.loadedTerrain = {
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state: loadedState,
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};
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}
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if (defined(upsampledState)) {
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this.data.upsampledTerrain = {
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state: upsampledState,
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};
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}
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this.eligibleForUnloading = true;
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}
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Tile.prototype.freeResources = function () {};
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var queue;
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var one;
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var two;
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var three;
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var four;
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var notEligibleForUnloading;
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beforeEach(function () {
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var tilingScheme = new GeographicTilingScheme();
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queue = new TileReplacementQueue();
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one = new QuadtreeTile({
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tilingScheme: tilingScheme,
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level: 0,
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x: 0,
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y: 0,
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});
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two = new QuadtreeTile({
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tilingScheme: tilingScheme,
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level: 0,
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x: 1,
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y: 0,
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});
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three = new QuadtreeTile({
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tilingScheme: tilingScheme,
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level: 1,
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x: 0,
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y: 0,
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});
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four = new QuadtreeTile({
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tilingScheme: tilingScheme,
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level: 1,
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x: 2,
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y: 1,
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});
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notEligibleForUnloading = new QuadtreeTile({
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tilingScheme: tilingScheme,
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level: 1,
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x: 2,
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y: 1,
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});
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notEligibleForUnloading.data = {
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eligibleForUnloading: false,
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};
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});
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describe("markStartOfRenderFrame", function () {
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it("prevents tiles added afterward from being trimmed.", function () {
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queue.markTileRendered(one);
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queue.markTileRendered(two);
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queue.markStartOfRenderFrame();
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queue.markTileRendered(three);
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queue.trimTiles(0);
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expect(queue.count).toEqual(1);
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expect(queue.head).toEqual(three);
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});
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it("prevents all tiles from being trimmed if called on an empty queue.", function () {
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queue.markStartOfRenderFrame();
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queue.markTileRendered(one);
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queue.markTileRendered(two);
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queue.markTileRendered(three);
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queue.trimTiles(0);
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expect(queue.count).toEqual(3);
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});
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it("adjusts properly when last tile in previous frame is moved to the head.", function () {
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queue.markTileRendered(one);
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queue.markTileRendered(two);
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queue.markTileRendered(three);
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queue.markStartOfRenderFrame();
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queue.markTileRendered(three);
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queue.trimTiles(0);
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expect(queue.count).toEqual(1);
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expect(queue.head).toEqual(three);
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});
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it("adjusts properly when all tiles are moved to the head.", function () {
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queue.markTileRendered(one);
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queue.markTileRendered(two);
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queue.markTileRendered(three);
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queue.markStartOfRenderFrame();
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queue.markTileRendered(one);
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queue.markTileRendered(two);
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queue.markTileRendered(three);
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queue.trimTiles(0);
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expect(queue.count).toEqual(3);
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expect(queue.head).toEqual(three);
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expect(queue.tail).toEqual(one);
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});
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});
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describe("trimTiles", function () {
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it("does not remove a tile that is not eligible for unloading.", function () {
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queue.markTileRendered(one);
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queue.markTileRendered(two);
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queue.markTileRendered(notEligibleForUnloading);
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queue.markTileRendered(three);
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queue.markStartOfRenderFrame();
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queue.trimTiles(0);
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expect(queue.count).toEqual(1);
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expect(queue.head).toEqual(notEligibleForUnloading);
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});
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it("does not remove a transitioning tile at the end of the last render frame.", function () {
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queue.markTileRendered(one);
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queue.markTileRendered(two);
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queue.markTileRendered(three);
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queue.markTileRendered(notEligibleForUnloading);
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queue.markStartOfRenderFrame();
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queue.trimTiles(0);
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expect(queue.count).toEqual(1);
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expect(queue.head).toEqual(notEligibleForUnloading);
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});
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it("removes two tiles not used last render frame.", function () {
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queue.markTileRendered(notEligibleForUnloading);
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queue.markTileRendered(one);
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queue.markTileRendered(two);
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queue.markStartOfRenderFrame();
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queue.markTileRendered(three);
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queue.markTileRendered(four);
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queue.trimTiles(0);
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expect(queue.count).toEqual(3);
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});
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});
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});
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