How to use cacheProviders method in ng-mocks

Best JavaScript code snippet using ng-mocks

mock-provider.ts

Source: mock-provider.ts Github

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1import { Provider } from '@angular/​core';2import coreConfig from '../​common/​core.config';3import { Type } from '../​common/​core.types';4import funcGetProvider from '../​common/​func.get-provider';5import { isNgInjectionToken } from '../​common/​func.is-ng-injection-token';6import ngMocksUniverse from '../​common/​ng-mocks-universe';7import helperDefinePropertyDescriptor from './​helper.define-property-descriptor';8import helperExtractPropertyDescriptor from './​helper.extract-property-descriptor';9import helperUseFactory from './​helper.use-factory';10import { MockService } from './​mock-service';11const { neverMockProvidedFunction, neverMockToken } = coreConfig;12const applyMissingClassProperties = (instance: any, useClass: Type<any>) => {13 const existing = Object.getOwnPropertyNames(instance);14 const child = MockService(useClass);15 for (const name of Object.getOwnPropertyNames(child)) {16 if (existing.indexOf(name) !== -1) {17 continue;18 }19 const def = helperExtractPropertyDescriptor(child, name);20 helperDefinePropertyDescriptor(instance, name, def);21 }22};23const createFactoryProvider = (provider: any, provide: any) =>24 helperUseFactory(provide, () => {25 const instance = MockService(provide);26 /​/​ Magic below adds missed properties to the instance to27 /​/​ fulfill missed abstract methods.28 if (provide !== provider && Object.keys(provider).indexOf('useClass') !== -1) {29 applyMissingClassProperties(instance, provider.useClass);30 }31 return instance;32 });33const normalizePrimitivesMap: Array<[(value: any) => boolean, any]> = [34 [value => typeof value === 'boolean', false],35 [value => typeof value === 'number', 0],36 [value => typeof value === 'string', ''],37 [value => value === null, null],38];39const normalizePrimitives = (value: any): any => {40 for (const [check, result] of normalizePrimitivesMap) {41 if (check(value)) {42 return result;43 }44 }45 return undefined;46};47const createValueProvider = (provider: any, provide: any) =>48 helperUseFactory(provide, () =>49 provider.useValue && typeof provider.useValue === 'object'50 ? MockService(provider.useValue)51 : normalizePrimitives(provider.useValue),52 );53const createClassProvider = (provider: any, provide: any) =>54 ngMocksUniverse.builtProviders.has(provider.useClass) &&55 ngMocksUniverse.builtProviders.get(provider.useClass) === provider.useClass56 ? provider57 : helperUseFactory(provide, () => MockService(provider.useClass));58const createMockProvider = (provider: any, provide: any, cacheProviders?: Map<any, any>): Provider | undefined => {59 let mockProvider: Provider | undefined;60 if (typeof provide === 'function') {61 mockProvider = createFactoryProvider(provider, provide);62 }63 if (provide === provider && mockProvider && cacheProviders) {64 cacheProviders.set(provide, mockProvider);65 }66 return mockProvider;67};68/​/​ Tokens are special subject, we can skip adding them because in a mock module they are useless.69/​/​ The main problem is that providing undefined to HTTP_INTERCEPTORS and others breaks their code.70/​/​ If a testing module /​ component requires omitted tokens then they should be provided manually71/​/​ during creation of TestBed module.72const handleProvider = (provider: any, provide: any, useFactory: boolean) => {73 if (provide === provider) {74 return useFactory ? helperUseFactory(provider, () => undefined) : undefined;75 }76 if (provider.multi) {77 ngMocksUniverse.config.get('ngMocksMulti')?.add(provide);78 return undefined;79 }80 let mockProvider: any;81 /​/​ istanbul ignore else82 if (Object.keys(provider).indexOf('useValue') !== -1) {83 mockProvider = createValueProvider(provider, provide);84 } else if (Object.keys(provider).indexOf('useExisting') !== -1) {85 mockProvider = provider;86 } else if (Object.keys(provider).indexOf('useClass') !== -1) {87 mockProvider = createClassProvider(provider, provide);88 } else if (Object.keys(provider).indexOf('useFactory') !== -1) {89 mockProvider = helperUseFactory(provide, () => ({}));90 }91 return mockProvider;92};93const isNeverMockFunction = (provide: any): boolean =>94 typeof provide === 'function' && neverMockProvidedFunction.indexOf(provide.name) !== -1;95const isNeverMockToken = (provide: any): boolean =>96 isNgInjectionToken(provide) && neverMockToken.indexOf(provide.toString()) !== -1;97export default (provider: any, useFactory = false): Provider | undefined => {98 const provide = funcGetProvider(provider);99 if (ngMocksUniverse.getResolution(provide) === 'mock') {100 /​/​ nothing to do101 } else if (isNeverMockFunction(provide)) {102 return provider;103 } else if (isNeverMockToken(provide)) {104 return undefined;105 }106 /​/​ Only pure provides should be cached to avoid their influence on107 /​/​ another different declarations.108 const cacheProviders = ngMocksUniverse.flags.has('cacheProvider')109 ? ngMocksUniverse.cacheProviders110 : /​* istanbul ignore next */​ undefined;111 if (provide === provider && cacheProviders && cacheProviders.has(provide)) {112 return cacheProviders.get(provide);113 }114 return createMockProvider(provider, provide, cacheProviders) || handleProvider(provider, provide, useFactory);...

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StoreCaches.ts

Source: StoreCaches.ts Github

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1import {CacheProviders} from "./​CacheProviders";2import {CacheProvider} from "./​CacheProvider";3import {ICacheKeyCalculator} from "./​ICacheKeyCalculator";4import { CacheKeyCalculators } from "./​CacheKeyCalculators";5import {Preconditions} from "polar-shared/​src/​Preconditions";6import {CachedStore} from "./​store/​cached/​CachedStore";7import { IFirestore } from "./​store/​IFirestore";8/​**9 * The general design here is that we have a snapshot interface that mimics10 * Firestore and the main and high level usage pattern.11 *12 */​13export namespace StoreCaches {14 export type SnapshotBacking = 'none' | 'IndexedDB';15 export interface SnapshotCacheConfig {16 readonly backing: SnapshotBacking;17 }18 export let config: SnapshotCacheConfig = {19 /​/​ backing: 'IndexedDB'20 backing: 'none'21 };22 console.log("Using StoreCache: " + config.backing);23 let cacheProvider: CacheProvider = CacheProviders.create(config.backing);24 /​**25 * Purge all data in the snapshot cache using the current configuration26 */​27 export async function purge() {28 await cacheProvider.purge();29 }30 /​**31 * Configure how the snapshot cache works, whether it's enabled, etc.32 */​33 export function configure(newConfig: SnapshotCacheConfig) {34 config = newConfig;35 cacheProvider = CacheProviders.create(config.backing);36 }37 export interface IStoreBuilder {38 readonly build: (delegate: IFirestore) => Promise<IFirestore>;39 }40 export function create(): IStoreBuilder {41 let cacheKeyCalculator: ICacheKeyCalculator | undefined;42 async function build(delegate: IFirestore) {43 Preconditions.assertPresent(delegate, 'delegate');44 cacheKeyCalculator = CacheKeyCalculators.createGeneric();45 switch (config.backing) {46 case "none":47 return delegate;48 case "IndexedDB":49 return CachedStore.create(delegate, CacheProviders.create(config.backing), cacheKeyCalculator!);50 }51 }52 return {53 build54 }55 }...

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ListProvidersService.ts

Source: ListProvidersService.ts Github

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1import { inject, injectable } from "tsyringe";2import User from "@modules/​users/​infra/​typeorm/​entities/​User";3import IUsersRepository from "@modules/​users/​repositories/​IUserRepository";4import ICacheProvider from "@shared/​container/​providers/​CacheProvider/​models/​ICacheProvider";5import { classToClass } from "class-transformer";6@injectable()7class ListProvidersService {8 constructor(9 @inject("UsersRepository")10 private usersRepository: IUsersRepository,11 @inject("CacheProvider")12 private cacheProvider: ICacheProvider13 ) {}14 public async execute(user_id: string): Promise<User[] | undefined> {15 let cacheProviders = await this.cacheProvider.get<User[]>(16 `providers-list:${user_id}`17 );18 /​/​ let cacheProviders = null;19 if (!cacheProviders) {20 console.log("Query DB => Providers List");21 let providers = await this.usersRepository.findAllProviders({22 except_user_id: user_id,23 });24 this.cacheProvider.save(25 `providers-list:${user_id}`,26 classToClass(providers)27 );28 return providers;29 }30 return cacheProviders;31 }32}...

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Using AI Code Generation

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1import { cacheProviders } from 'ng-mocks';2import { MyComponent } from './​my-component';3describe('MyComponent', () => {4 let component: MyComponent;5 let fixture: ComponentFixture<MyComponent>;6 beforeEach(() => {7 TestBed.configureTestingModule({8 imports: [MyModule],9 providers: cacheProviders({10 useValue: { test: 'test' },11 }),12 }).compileComponents();13 fixture = TestBed.createComponent(MyComponent);14 component = fixture.componentInstance;15 fixture.detectChanges();16 });17 it('should create', () => {18 expect(component).toBeTruthy();19 });20});21import { TestBed, ComponentFixture } from '@angular/​core/​testing';22import { MyComponent } from './​my-component';23describe('MyComponent', () => {24 let component: MyComponent;25 let fixture: ComponentFixture<MyComponent>;26 beforeEach(() => {27 TestBed.configureTestingModule({28 imports: [MyModule],29 {30 useValue: { test: 'test' },31 },32 }).compileComponents();33 fixture = TestBed.createComponent(MyComponent);34 component = fixture.componentInstance;35 fixture.detectChanges();36 });37 it('should create', () => {38 expect(component).toBeTruthy();39 });40});41import { TestBed, ComponentFixture } from '@angular/​core/​testing';42import { MyComponent } from './​my-component';43describe('MyComponent', () => {44 let component: MyComponent;45 let fixture: ComponentFixture<MyComponent>;46 beforeEach(() => {47 TestBed.configureTestingModule({48 imports: [MyModule],49 {50 useValue: { test: 'test' },51 },52 }).compileComponents();53 fixture = TestBed.createComponent(MyComponent);54 component = fixture.componentInstance;55 fixture.detectChanges();56 });57 it('should create', () => {58 expect(component).toBeTruthy();59 });60});61import { TestBed, ComponentFixture } from '@angular/​core/​testing';62import { MyComponent } from './​my-component';63describe('MyComponent', () => {64 let component: MyComponent;65 let fixture: ComponentFixture<MyComponent>;66 beforeEach(() => {67 TestBed.configureTestingModule({68 imports: [MyModule],69 {70 useValue: { test: 'test' },71 },72 }).compileComponents();73 fixture = TestBed.createComponent(MyComponent);74 component = fixture.componentInstance;75 fixture.detectChanges();76 });

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Using AI Code Generation

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1import { cacheProviders } from 'ng-mocks/​dist/​lib/​mock-module/​mock-module';2import { cacheProviders } from 'ng-mocks/​dist/​lib/​mock-module/​mock-module';3import { cacheProviders } from 'ng-mocks/​dist/​lib/​mock-module/​mock-module';4import { cacheProviders } from 'ng-mocks/​dist/​lib/​mock-module/​mock-module';5import { cacheProviders } from 'ng-mocks/​dist/​lib/​mock-module/​mock-module';6import { cacheProviders } from 'ng-mocks/​dist/​lib/​mock-module/​mock-module';

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