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How to use cacheProviders method in ng-mocks

Best JavaScript code snippet using ng-mocks

mock-provider.ts

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);...

StoreCaches.ts

Source: StoreCaches.ts

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    }...

ListProvidersService.ts

Source: ListProvidersService.ts

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}...

Using AI Code Generation

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  });

Using AI Code Generation

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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