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angular - 在规范文件中将“and”函数链接到“selectAll”会引发错误

问题描述

我正在尝试遵循Akita有关单元测试的官方文档Angular：https ://datorama.github.io/akita/docs/angular/tests/ 。

但是我在模拟TodosQuery返回值时遇到了问题。这是特定的行：

todosQuery.selectAll.and.returnValue(of([createTodo(), createTodo()]))

这是抛出的错误：

Property 'and' does not exist on type '{ (options: SelectAllOptionsA<Todo>): Observable<HashMap<Todo>>; (options: SelectAllOptionsB<Todo>): Observable<...>; (options: SelectAllOptionsC<...>): Observable<...>; (options: SelectAllOptionsD<...>): Observable<...>; (options: SelectAllOptionsE<...>): Observable<...>; (): Observable<...>; }'.

也许文档已经过时并且不再支持？这仍然是模拟Query返回值的首选方式吗？

这些是我的 package.json 依赖项：

"dependencies": {
    "@angular/animations": "~12.2.0",
    "@angular/common": "~12.2.0",
    "@angular/compiler": "~12.2.0",
    "@angular/core": "~12.2.0",
    "@angular/forms": "~12.2.0",
    "@angular/platform-browser": "~12.2.0",
    "@angular/platform-browser-dynamic": "~12.2.0",
    "@angular/router": "~12.2.0",
    "@datorama/akita": "^6.2.3",
    "@datorama/akita-ng-entity-service": "^6.2.0",
    "@datorama/akita-ng-router-store": "^6.0.0",
    "rxjs": "~6.6.0",
    "tslib": "^2.3.0",
    "zone.js": "~0.11.4"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "~12.2.5",
    "@angular/cli": "~12.2.5",
    "@angular/compiler-cli": "~12.2.0",
    "@datorama/akita-ngdevtools": "^6.0.0",
    "@types/jasmine": "~3.8.0",
    "@types/node": "^12.11.1",
    "jasmine-core": "~3.8.0",
    "karma": "~6.3.0",
    "karma-chrome-launcher": "~3.1.0",
    "karma-coverage": "~2.0.3",
    "karma-jasmine": "~4.0.0",
    "karma-jasmine-html-reporter": "~1.7.0",
    "typescript": "~4.3.5"
  }

标签： angularchainingakita

解决方案

我相信在测试 beforeEach 中缺少一个步骤

spyOn(todosQuery, 'selectAll');

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