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feat(perftool): add beforeTest callback support, add request intercep…
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,3 @@ | ||
| import type { InterceptParams } from './intercept'; | ||
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| export const intercept = async (params: InterceptParams): Promise<void> => window._perftool_intercept?.(params); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,130 @@ | ||
| import { Page, HTTPRequest } from 'puppeteer'; | ||
| import { minimatch } from 'minimatch'; | ||
| import mime from 'mime'; | ||
| import fsPromises from 'fs/promises'; | ||
| import path from 'path'; | ||
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| import { JSONSerializable } from '../utils/types'; | ||
| import BaseError from '../utils/baseError'; | ||
| import { debug } from '../utils/logger'; | ||
| import CWD from '../utils/cwd'; | ||
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| type Method = string; | ||
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| export const enum FakeResponseType { | ||
| JSON = 'json', | ||
| File = 'file', | ||
| Abort = 'abort', | ||
| } | ||
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| export type InterceptParams = { | ||
| method?: Method; | ||
| source: string; | ||
| } & ( | ||
| | { responseType: FakeResponseType.Abort; response: undefined } | ||
| | { responseType: FakeResponseType.File; response: string } | ||
| | { responseType?: FakeResponseType.JSON; response: JSONSerializable } | ||
| ); | ||
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| type FakeResponse = { mimeType: string; data: string | Buffer }; | ||
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| class BadExtensionError extends BaseError {} | ||
| class BadPathError extends BaseError {} | ||
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| const ANY_METHOD = 'ANY'; | ||
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| export async function useInterceptApi(page: Page): Promise<void> { | ||
| const requestReplacementByMethodMap: Map<Method, Map<string, FakeResponse | null>> = new Map(); | ||
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| function getRequestReplacement(url: string, method: Method): FakeResponse | null | void { | ||
| if (!requestReplacementByMethodMap.has(method)) { | ||
| return; | ||
| } | ||
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| if (requestReplacementByMethodMap.get(method)!.has(url)) { | ||
| return requestReplacementByMethodMap.get(method)!.get(url); | ||
| } | ||
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| for (const [source, response] of requestReplacementByMethodMap.get(method)!) { | ||
| if (minimatch(url, source)) { | ||
| return response; | ||
| } | ||
| } | ||
| } | ||
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| async function setRequestReplacement({ | ||
| method = ANY_METHOD, | ||
| response, | ||
| responseType = FakeResponseType.File, | ||
| source, | ||
| }: InterceptParams) { | ||
| if (!requestReplacementByMethodMap.has(method)) { | ||
| requestReplacementByMethodMap.set(method, new Map()); | ||
| } | ||
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| if (responseType === FakeResponseType.Abort) { | ||
| debug(`[Intercept] Set up ABORT ${method} ${source}`); | ||
| requestReplacementByMethodMap.get(method)!.set(source, null); | ||
| } | ||
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| if (responseType === FakeResponseType.JSON) { | ||
| debug(`[Intercept] Set up JSON response ${method} ${source}`); | ||
| requestReplacementByMethodMap.get(method)!.set(source, { | ||
| mimeType: 'application/json', | ||
| data: JSON.stringify(response), | ||
| }); | ||
| } | ||
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| if (responseType === FakeResponseType.File) { | ||
| if (typeof response !== 'string') { | ||
| throw new BadPathError('Request replacement file path is not a string'); | ||
| } | ||
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| const mimeType = mime.getType(response); | ||
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| if (!mimeType) { | ||
| throw new BadExtensionError('Could not get a mime type from file extension'); | ||
| } | ||
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| const data = await fsPromises.readFile(path.resolve(CWD, response)); | ||
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| debug(`[Intercept] Set up FILE response ${method} ${source} -> ${response}`); | ||
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| requestReplacementByMethodMap.get(method)!.set(source, { | ||
| mimeType, | ||
| data, | ||
| }); | ||
| } | ||
| } | ||
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| async function handleInterceptedRequest(req: HTTPRequest) { | ||
| if (req.isInterceptResolutionHandled()) { | ||
| return; | ||
| } | ||
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| const response = getRequestReplacement(req.url(), req.method()) || getRequestReplacement(req.url(), ANY_METHOD); | ||
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| if (response == null) { | ||
| debug(`[Intercept] ${req.method()} ${req.url()} aborted`); | ||
| await req.abort(); | ||
| return; | ||
| } | ||
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| if (!response) { | ||
| await req.continue(); | ||
| return; | ||
| } | ||
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| await req.respond({ | ||
| contentType: response.mimeType, | ||
| body: response.data, | ||
| }); | ||
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| debug(`[Intercept] ${req.method()} ${req.url()} intercepted, respond ${response.mimeType}`); | ||
| } | ||
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| await page.exposeFunction('_perftool_intercept', setRequestReplacement); | ||
| await page.setRequestInterception(true); | ||
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| page.on('request', handleInterceptedRequest); | ||
| } |
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