Unit tests for the metrics
Summary: Added unit tests for the "WASTED_BYTES" for the fresco plugin Reviewed By: passy Differential Revision: D15610871 fbshipit-source-id: dc9bd84363e1ba22fc96890b74e217372188a9d0
This commit is contained in:
Pritesh Nandgaonkar
committed by
Facebook Github Bot
Facebook Github Bot
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72a39cb09d
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259
src/plugins/fresco/__tests__/index.node.js
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259
src/plugins/fresco/__tests__/index.node.js
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/**
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* Copyright 2018-present Facebook.
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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* @format
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*/
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import FrescoPlugin from '../index.js';
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import type {PersistedState, ImageEventWithId} from '../index.js';
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function mockPersistedState(
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imageSizes: Array<{
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width: number,
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height: number,
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}>,
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viewport: {
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width: number,
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height: number,
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},
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): PersistedState {
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const scanDisplayTime = {};
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scanDisplayTime[1] = 3;
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const events: Array<ImageEventWithId> = [
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{
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imageIds: [...Array(imageSizes.length).keys()].map(String),
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eventId: 0,
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attribution: [],
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startTime: 1,
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endTime: 2,
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source: 'source',
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coldStart: true,
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viewport: {...viewport, scanDisplayTime},
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},
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];
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const imagesMap = imageSizes.reduce((acc, val, index) => {
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acc[index] = {
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imageId: String(index),
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width: val.width,
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height: val.height,
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sizeBytes: 10,
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data: undefined,
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};
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return acc;
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}, {});
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return {
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surfaceList: new Set(),
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images: [],
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events,
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imagesMap,
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closeableReferenceLeaks: [],
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};
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}
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test('the metric reducer for the input having regression', () => {
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const persistedState = mockPersistedState(
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[
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{
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width: 150,
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height: 150,
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},
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{
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width: 150,
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height: 150,
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},
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{
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width: 150,
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height: 150,
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},
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],
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{
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width: 100,
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height: 100,
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},
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);
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expect(FrescoPlugin.metricsReducer).toBeDefined();
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//$FlowFixMe: Added a check if the metricsReducer exists in FrescoPlugin
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const metrics = FrescoPlugin.metricsReducer(persistedState);
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expect(metrics).resolves.toMatchObject({
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WASTED_BYTES: 37500,
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CLOSEABLE_REFERENCE_LEAKS: 0,
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});
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});
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test('the metric reducer for the input having no regression', () => {
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const persistedState = mockPersistedState(
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[
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{
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width: 50,
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height: 10,
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},
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{
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width: 50,
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height: 50,
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},
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{
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width: 50,
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height: 50,
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},
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],
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{
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width: 100,
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height: 100,
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},
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);
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const metricsReducer = FrescoPlugin.metricsReducer;
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expect(metricsReducer).toBeDefined();
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//$FlowFixMe: Added a check if the metricsReducer exists in FrescoPlugin
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const metrics = metricsReducer(persistedState);
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expect(metrics).resolves.toMatchObject({
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WASTED_BYTES: 0,
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CLOSEABLE_REFERENCE_LEAKS: 0,
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});
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});
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test('the metric reducer for the default persisted state', () => {
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const metricsReducer = FrescoPlugin.metricsReducer;
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expect(metricsReducer).toBeDefined();
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//$FlowFixMe: Added a check if the metricsReducer exists in FrescoPlugin
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const metrics = metricsReducer(FrescoPlugin.defaultPersistedState);
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expect(metrics).resolves.toMatchObject({
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WASTED_BYTES: 0,
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CLOSEABLE_REFERENCE_LEAKS: 0,
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});
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});
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test('the metric reducer with the events data but with no imageData in imagesMap ', () => {
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const persistedState = mockPersistedState(
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[
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{
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width: 50,
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height: 10,
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},
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{
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width: 50,
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height: 50,
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},
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{
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width: 50,
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height: 50,
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},
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],
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{
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width: 100,
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height: 100,
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},
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);
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persistedState.imagesMap = {};
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const metricsReducer = FrescoPlugin.metricsReducer;
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expect(metricsReducer).toBeDefined();
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//$FlowFixMe: Added a check if the metricsReducer exists in FrescoPlugin
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const metrics = metricsReducer(persistedState);
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expect(metrics).resolves.toMatchObject({
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WASTED_BYTES: 0,
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CLOSEABLE_REFERENCE_LEAKS: 0,
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});
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});
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test('the metric reducer with the no viewPort data in events', () => {
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const persistedState = mockPersistedState(
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[
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{
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width: 50,
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height: 10,
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},
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{
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width: 50,
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height: 50,
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},
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{
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width: 50,
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height: 50,
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},
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],
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{
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width: 100,
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height: 100,
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},
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);
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delete persistedState.events[0].viewport;
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const metricsReducer = FrescoPlugin.metricsReducer;
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expect(metricsReducer).toBeDefined();
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//$FlowFixMe: Added a check if the metricsReducer exists in FrescoPlugin
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const metrics = metricsReducer(persistedState);
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expect(metrics).resolves.toMatchObject({
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WASTED_BYTES: 0,
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CLOSEABLE_REFERENCE_LEAKS: 0,
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});
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});
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test('the metric reducer with the multiple events', () => {
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const scanDisplayTime = {};
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scanDisplayTime[1] = 3;
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const events: Array<ImageEventWithId> = [
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{
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imageIds: ['0', '1'],
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eventId: 0,
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attribution: [],
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startTime: 1,
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endTime: 2,
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source: 'source',
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coldStart: true,
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viewport: {width: 100, height: 100, scanDisplayTime},
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},
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{
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imageIds: ['2', '3'],
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eventId: 1,
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attribution: [],
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startTime: 1,
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endTime: 2,
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source: 'source',
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coldStart: true,
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viewport: {width: 50, height: 50, scanDisplayTime},
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},
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];
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const imageSizes = [
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{
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width: 150,
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height: 150,
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},
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{
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width: 100,
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height: 100,
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},
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{
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width: 250,
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height: 250,
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},
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{
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width: 300,
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height: 300,
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},
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];
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const imagesMap = imageSizes.reduce((acc, val, index) => {
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acc[index] = {
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imageId: String(index),
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width: val.width,
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height: val.height,
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sizeBytes: 10,
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data: undefined,
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};
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return acc;
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}, {});
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const persistedState = {
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surfaceList: new Set(),
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images: [],
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events,
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imagesMap,
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};
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const metricsReducer = FrescoPlugin.metricsReducer;
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expect(metricsReducer).toBeDefined();
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//$FlowFixMe: Added a check if the metricsReducer exists in FrescoPlugin
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const metrics = metricsReducer(persistedState);
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expect(metrics).resolves.toMatchObject({
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WASTED_BYTES: 160000,
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CLOSEABLE_REFERENCE_LEAKS: 0,
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});
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});
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