@angular/common
Version:
Angular - commonly needed directives and services
177 lines • 22.8 kB
JavaScript
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import { HttpErrorResponse, HttpHeaders, HttpResponse, HttpStatusCode, } from '@angular/common/http';
/**
* A mock requests that was received and is ready to be answered.
*
* This interface allows access to the underlying `HttpRequest`, and allows
* responding with `HttpEvent`s or `HttpErrorResponse`s.
*
* @publicApi
*/
export class TestRequest {
/**
* Whether the request was cancelled after it was sent.
*/
get cancelled() {
return this._cancelled;
}
constructor(request, observer) {
this.request = request;
this.observer = observer;
/**
* @internal set by `HttpClientTestingBackend`
*/
this._cancelled = false;
}
/**
* Resolve the request by returning a body plus additional HTTP information (such as response
* headers) if provided.
* If the request specifies an expected body type, the body is converted into the requested type.
* Otherwise, the body is converted to `JSON` by default.
*
* Both successful and unsuccessful responses can be delivered via `flush()`.
*/
flush(body, opts = {}) {
if (this.cancelled) {
throw new Error(`Cannot flush a cancelled request.`);
}
const url = this.request.urlWithParams;
const headers = opts.headers instanceof HttpHeaders ? opts.headers : new HttpHeaders(opts.headers);
body = _maybeConvertBody(this.request.responseType, body);
let statusText = opts.statusText;
let status = opts.status !== undefined ? opts.status : HttpStatusCode.Ok;
if (opts.status === undefined) {
if (body === null) {
status = HttpStatusCode.NoContent;
statusText ||= 'No Content';
}
else {
statusText ||= 'OK';
}
}
if (statusText === undefined) {
throw new Error('statusText is required when setting a custom status.');
}
if (status >= 200 && status < 300) {
this.observer.next(new HttpResponse({ body, headers, status, statusText, url }));
this.observer.complete();
}
else {
this.observer.error(new HttpErrorResponse({ error: body, headers, status, statusText, url }));
}
}
error(error, opts = {}) {
if (this.cancelled) {
throw new Error(`Cannot return an error for a cancelled request.`);
}
if (opts.status && opts.status >= 200 && opts.status < 300) {
throw new Error(`error() called with a successful status.`);
}
const headers = opts.headers instanceof HttpHeaders ? opts.headers : new HttpHeaders(opts.headers);
this.observer.error(new HttpErrorResponse({
error,
headers,
status: opts.status || 0,
statusText: opts.statusText || '',
url: this.request.urlWithParams,
}));
}
/**
* Deliver an arbitrary `HttpEvent` (such as a progress event) on the response stream for this
* request.
*/
event(event) {
if (this.cancelled) {
throw new Error(`Cannot send events to a cancelled request.`);
}
this.observer.next(event);
}
}
/**
* Helper function to convert a response body to an ArrayBuffer.
*/
function _toArrayBufferBody(body) {
if (typeof ArrayBuffer === 'undefined') {
throw new Error('ArrayBuffer responses are not supported on this platform.');
}
if (body instanceof ArrayBuffer) {
return body;
}
throw new Error('Automatic conversion to ArrayBuffer is not supported for response type.');
}
/**
* Helper function to convert a response body to a Blob.
*/
function _toBlob(body) {
if (typeof Blob === 'undefined') {
throw new Error('Blob responses are not supported on this platform.');
}
if (body instanceof Blob) {
return body;
}
if (ArrayBuffer && body instanceof ArrayBuffer) {
return new Blob([body]);
}
throw new Error('Automatic conversion to Blob is not supported for response type.');
}
/**
* Helper function to convert a response body to JSON data.
*/
function _toJsonBody(body, format = 'JSON') {
if (typeof ArrayBuffer !== 'undefined' && body instanceof ArrayBuffer) {
throw new Error(`Automatic conversion to ${format} is not supported for ArrayBuffers.`);
}
if (typeof Blob !== 'undefined' && body instanceof Blob) {
throw new Error(`Automatic conversion to ${format} is not supported for Blobs.`);
}
if (typeof body === 'string' ||
typeof body === 'number' ||
typeof body === 'object' ||
typeof body === 'boolean' ||
Array.isArray(body)) {
return body;
}
throw new Error(`Automatic conversion to ${format} is not supported for response type.`);
}
/**
* Helper function to convert a response body to a string.
*/
function _toTextBody(body) {
if (typeof body === 'string') {
return body;
}
if (typeof ArrayBuffer !== 'undefined' && body instanceof ArrayBuffer) {
throw new Error('Automatic conversion to text is not supported for ArrayBuffers.');
}
if (typeof Blob !== 'undefined' && body instanceof Blob) {
throw new Error('Automatic conversion to text is not supported for Blobs.');
}
return JSON.stringify(_toJsonBody(body, 'text'));
}
/**
* Convert a response body to the requested type.
*/
function _maybeConvertBody(responseType, body) {
if (body === null) {
return null;
}
switch (responseType) {
case 'arraybuffer':
return _toArrayBufferBody(body);
case 'blob':
return _toBlob(body);
case 'json':
return _toJsonBody(body);
case 'text':
return _toTextBody(body);
default:
throw new Error(`Unsupported responseType: ${responseType}`);
}
}
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* @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {\n  HttpErrorResponse,\n  HttpEvent,\n  HttpHeaders,\n  HttpRequest,\n  HttpResponse,\n  HttpStatusCode,\n} from '@angular/common/http';\nimport {Observer} from 'rxjs';\n\n/**\n * Type that describes options that can be used to create an error\n * in `TestRequest`.\n */\ntype TestRequestErrorOptions = {\n  headers?: HttpHeaders | {[name: string]: string | string[]};\n  status?: number;\n  statusText?: string;\n};\n\n/**\n * A mock requests that was received and is ready to be answered.\n *\n * This interface allows access to the underlying `HttpRequest`, and allows\n * responding with `HttpEvent`s or `HttpErrorResponse`s.\n *\n * @publicApi\n */\nexport class TestRequest {\n  /**\n   * Whether the request was cancelled after it was sent.\n   */\n  get cancelled(): boolean {\n    return this._cancelled;\n  }\n\n  /**\n   * @internal set by `HttpClientTestingBackend`\n   */\n  _cancelled = false;\n\n  constructor(\n    public request: HttpRequest<any>,\n    private observer: Observer<HttpEvent<any>>,\n  ) {}\n\n  /**\n   * Resolve the request by returning a body plus additional HTTP information (such as response\n   * headers) if provided.\n   * If the request specifies an expected body type, the body is converted into the requested type.\n   * Otherwise, the body is converted to `JSON` by default.\n   *\n   * Both successful and unsuccessful responses can be delivered via `flush()`.\n   */\n  flush(\n    body:\n      | ArrayBuffer\n      | Blob\n      | boolean\n      | string\n      | number\n      | Object\n      | (boolean | string | number | Object | null)[]\n      | null,\n    opts: {\n      headers?: HttpHeaders | {[name: string]: string | string[]};\n      status?: number;\n      statusText?: string;\n    } = {},\n  ): void {\n    if (this.cancelled) {\n      throw new Error(`Cannot flush a cancelled request.`);\n    }\n    const url = this.request.urlWithParams;\n    const headers =\n      opts.headers instanceof HttpHeaders ? opts.headers : new HttpHeaders(opts.headers);\n    body = _maybeConvertBody(this.request.responseType, body);\n    let statusText: string | undefined = opts.statusText;\n    let status: number = opts.status !== undefined ? opts.status : HttpStatusCode.Ok;\n    if (opts.status === undefined) {\n      if (body === null) {\n        status = HttpStatusCode.NoContent;\n        statusText ||= 'No Content';\n      } else {\n        statusText ||= 'OK';\n      }\n    }\n    if (statusText === undefined) {\n      throw new Error('statusText is required when setting a custom status.');\n    }\n    if (status >= 200 && status < 300) {\n      this.observer.next(new HttpResponse<any>({body, headers, status, statusText, url}));\n      this.observer.complete();\n    } else {\n      this.observer.error(new HttpErrorResponse({error: body, headers, status, statusText, url}));\n    }\n  }\n\n  /**\n   * Resolve the request by returning an `ErrorEvent` (e.g. simulating a network failure).\n   * @deprecated Http requests never emit an `ErrorEvent`. Please specify a `ProgressEvent`.\n   */\n  error(error: ErrorEvent, opts?: TestRequestErrorOptions): void;\n  /**\n   * Resolve the request by returning an `ProgressEvent` (e.g. simulating a network failure).\n   */\n  error(error: ProgressEvent, opts?: TestRequestErrorOptions): void;\n  error(error: ProgressEvent | ErrorEvent, opts: TestRequestErrorOptions = {}): void {\n    if (this.cancelled) {\n      throw new Error(`Cannot return an error for a cancelled request.`);\n    }\n    if (opts.status && opts.status >= 200 && opts.status < 300) {\n      throw new Error(`error() called with a successful status.`);\n    }\n    const headers =\n      opts.headers instanceof HttpHeaders ? opts.headers : new HttpHeaders(opts.headers);\n    this.observer.error(\n      new HttpErrorResponse({\n        error,\n        headers,\n        status: opts.status || 0,\n        statusText: opts.statusText || '',\n        url: this.request.urlWithParams,\n      }),\n    );\n  }\n\n  /**\n   * Deliver an arbitrary `HttpEvent` (such as a progress event) on the response stream for this\n   * request.\n   */\n  event(event: HttpEvent<any>): void {\n    if (this.cancelled) {\n      throw new Error(`Cannot send events to a cancelled request.`);\n    }\n    this.observer.next(event);\n  }\n}\n\n/**\n * Helper function to convert a response body to an ArrayBuffer.\n */\nfunction _toArrayBufferBody(\n  body: ArrayBuffer | Blob | string | number | Object | (string | number | Object | null)[],\n): ArrayBuffer {\n  if (typeof ArrayBuffer === 'undefined') {\n    throw new Error('ArrayBuffer responses are not supported on this platform.');\n  }\n  if (body instanceof ArrayBuffer) {\n    return body;\n  }\n  throw new Error('Automatic conversion to ArrayBuffer is not supported for response type.');\n}\n\n/**\n * Helper function to convert a response body to a Blob.\n */\nfunction _toBlob(\n  body: ArrayBuffer | Blob | string | number | Object | (string | number | Object | null)[],\n): Blob {\n  if (typeof Blob === 'undefined') {\n    throw new Error('Blob responses are not supported on this platform.');\n  }\n  if (body instanceof Blob) {\n    return body;\n  }\n  if (ArrayBuffer && body instanceof ArrayBuffer) {\n    return new Blob([body]);\n  }\n  throw new Error('Automatic conversion to Blob is not supported for response type.');\n}\n\n/**\n * Helper function to convert a response body to JSON data.\n */\nfunction _toJsonBody(\n  body:\n    | ArrayBuffer\n    | Blob\n    | boolean\n    | string\n    | number\n    | Object\n    | (boolean | string | number | Object | null)[],\n  format: string = 'JSON',\n): Object | string | number | (Object | string | number)[] {\n  if (typeof ArrayBuffer !== 'undefined' && body instanceof ArrayBuffer) {\n    throw new Error(`Automatic conversion to ${format} is not supported for ArrayBuffers.`);\n  }\n  if (typeof Blob !== 'undefined' && body instanceof Blob) {\n    throw new Error(`Automatic conversion to ${format} is not supported for Blobs.`);\n  }\n  if (\n    typeof body === 'string' ||\n    typeof body === 'number' ||\n    typeof body === 'object' ||\n    typeof body === 'boolean' ||\n    Array.isArray(body)\n  ) {\n    return body;\n  }\n  throw new Error(`Automatic conversion to ${format} is not supported for response type.`);\n}\n\n/**\n * Helper function to convert a response body to a string.\n */\nfunction _toTextBody(\n  body: ArrayBuffer | Blob | string | number | Object | (string | number | Object | null)[],\n): string {\n  if (typeof body === 'string') {\n    return body;\n  }\n  if (typeof ArrayBuffer !== 'undefined' && body instanceof ArrayBuffer) {\n    throw new Error('Automatic conversion to text is not supported for ArrayBuffers.');\n  }\n  if (typeof Blob !== 'undefined' && body instanceof Blob) {\n    throw new Error('Automatic conversion to text is not supported for Blobs.');\n  }\n  return JSON.stringify(_toJsonBody(body, 'text'));\n}\n\n/**\n * Convert a response body to the requested type.\n */\nfunction _maybeConvertBody(\n  responseType: string,\n  body: ArrayBuffer | Blob | string | number | Object | (string | number | Object | null)[] | null,\n): ArrayBuffer | Blob | string | number | Object | (string | number | Object | null)[] | null {\n  if (body === null) {\n    return null;\n  }\n  switch (responseType) {\n    case 'arraybuffer':\n      return _toArrayBufferBody(body);\n    case 'blob':\n      return _toBlob(body);\n    case 'json':\n      return _toJsonBody(body);\n    case 'text':\n      return _toTextBody(body);\n    default:\n      throw new Error(`Unsupported responseType: ${responseType}`);\n  }\n}\n"]}