in lib/runTest.ts [139:150]
export function getProfileArguments(args: readonly string[]) {
const out: string[] = [];
if (!hasArg('extensions-dir', args)) {
out.push(`--extensions-dir=${path.join(defaultCachePath, 'extensions')}`)
}
if (!hasArg('user-data-dir', args)) {
out.push(`--user-data-dir=${path.join(defaultCachePath, 'user-data')}`)
}
return out;
}