import { Deferred , Log , setLogger } from "batch-cluster" ; import crypto from "crypto" ; import { copyFile , createReadStream , mkdirp } from "fs-extra" ; import os from "os" ; import path from "path" ; import process from "process" ; const chai = require ( "chai" ) ; chai . use ( require ( "chai-as-promised" ) ) ; chai . use ( require ( "chai-subset" ) ) ; setLogger ( Log . withLevels ( Log . withTimestamps ( Log . filterLevels ( { trace : console . log , debug : console . log , info : console . log , warn : console . warn , error : console . error , } , ( process . env . LOG as any ) ?? "error" ) ) ) ) ; export { expect } from "chai" ; export const testDir = path . join ( __dirname , ".." , "test" ) ; export function tmpname ( prefix = "" ) { return path . join ( os . tmpdir ( ) , prefix + Math . floor ( Math . random ( ) * 1e9 ) . toString ( 16 ) ) ; } /**
 * Copy a test image to a tmp directory and return the path
 */ export async function testImg ( name = "img.jpg" , parentDir = "test" ) { const dir = path . join ( tmpname ( ) , parentDir ) ; await mkdirp ( dir ) ; const dest = path . join ( dir , name ) ; return copyFile ( path . join ( testDir , name ) , dest ) . then ( ( ) => dest ) ; } export async function testFile ( name ) { const dir = tmpname ( ) ; await mkdirp ( dir ) ; return path . join ( dir , name ) ; } export function sha1 ( path ) { const d = new Deferred < string > ( ) ; const readStream = createReadStream ( path , { autoClose : true } ) ; const sha = crypto . createHash ( "sha1" ) ; readStream . on ( "data" , ( ea ) => sha . update ( ea ) ) ; readStream . on ( "error" , ( err ) => d . reject ( err ) ) ; readStream . on ( "end" , ( ) => d . resolve ( sha . digest ( ) . toString ( "hex" ) ) ) ; return d . promise ; } export function sha1buffer ( input ) { return crypto . createHash ( "sha1" ) . update ( input ) . digest ( ) . toString ( "hex" ) ; } export function isWin32 ( ) { return os . platform ( ) === "win32" ; }