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import crypto from "node:crypto";
export function generateHash( string ) {
const hash = crypto.createHash( "md5" );
hash.update( string );
// QUnit hashes are 8 characters long
// We use 10 characters to be more visually distinct
return hash.digest( "hex" ).slice( 0, 10 );
}
/**
* A copy of the generate hash function from QUnit,
* used to generate a hash for the module name.
*
* QUnit errors on passing multiple modules to the
* module query parameter. We need to know
* the hash for each module before loading QUnit
* in order to pass multiple moduleId parameters instead.
*/
export function generateModuleId( module, browser ) {
// QUnit normally hashes the test name, but
// we've repurposed this function to generate
// report IDs for module/browser combinations.
// We still use it without the browser parameter
// to get the same module IDs as QUnit to pass
// multiple ahead-of-time in the query string.
const str = module + "\x1C" + browser;
let hash = 0;
for ( let i = 0; i < str.length; i++ ) {
hash = ( hash << 5 ) - hash + str.charCodeAt( i );
hash |= 0;
}
let hex = ( 0x100000000 + hash ).toString( 16 );
if ( hex.length < 8 ) {
hex = "0000000" + hex;
}
return hex.slice( -8 );
}
export function printModuleHashes( modules ) {
console.log( "Module hashes:" );
modules.forEach( ( module ) => {
console.log( ` ${ module }: ${ generateModuleId( module ) }` );
} );
}
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