Nestjs "Reference Error: File is not defined" only in test

Question

我的测试套件无法运行因为“文件”输入类型未定义。这仅在尝试运行测试时发生。该应用程序在开发中完美运行。下面是我的控制台输出。

$ nx run build-support-cases-api-core:test

> nx run build-support-cases-api-core:test 
 FAIL   build-support-cases-api-core  libs/build-support-cases/api/core/src/lib/__test__/buildSupportCase.service.spec.ts
  ● Test suite failed to run

    ReferenceError: File is not defined

      4 | export class CreateReceiptInput {
      5 |   @Field(() => String)
    > 6 |   public receipt: File;
        |                   ^
      7 |
      8 |   @Field(() => String)
      9 |   public vendorName: string;

      at Object.<anonymous> (../../../core/database/receipt/src/lib/dto/createReceipt.input.ts:6:19)
      at Object.<anonymous> (../../../core/database/receipt/src/lib/dto/createReceipt.dto.ts:1:1)

这里是完整的完整源文件

import { Field, ID, InputType } from "@nestjs/graphql";

@InputType()
export class CreateReceiptInput {
  @Field(() => String)
  public receipt: File;

  @Field(() => String)
  public vendorName: string;

  @Field(() => Date)
  public purchaseDate: Date;

  @Field(() => Number)
  public totalDollarAmount: number;

  @Field(() => String)
  public purchasedBy: string;

  @Field(() => String)
  public note: string;

  @Field(() => ID)
  public updateId?: number;
}

配置文件中是否有我遗漏的内容？我该如何解决这个问题，以便我的测试运行?

Answer 1

问题是 File 存在于打字稿中，但不存在于 NodeJS（或扩展名 NestJS）中。但是，NestJS 中确实存在 Blob 类型，因此如果您只是将其复制到新文件并导入，则 typescript 定义的文件类型可以工作。

export interface File extends Blob {
  readonly lastModified: number;
  readonly name: string;
}

import { Field, ID, InputType } from "@nestjs/graphql";
import { File } from "./interfaces";
@InputType()
export class CreateReceiptInput {
  @Field(() => String)
  public receipt: File;

  @Field(() => String)
  public vendorName: string;

  @Field(() => Date)
  public purchaseDate: Date;

  @Field(() => Number)
  public totalDollarAmount: number;

  @Field(() => String)
  public purchasedBy: string;

  @Field(() => String)
  public note: string;

  @Field(() => ID)
  public updateId?: number;
}

Nestjs "Reference Error: File is not defined" only in test

Nestjs "Reference Error: File is not defined" only in test

typescript

jestjs

nestjs

nrwl-nx