test: add regex to text-crypto-random

PR-URL: #10020 Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: Michael Dawson <[email protected]>

Author: NFoxley

test/parallel/test-crypto-random.js

@@ -13,10 +13,11 @@ crypto.DEFAULT_ENCODING = 'buffer'
 // bump, we register a lot of exit listeners
 process.setMaxListeners(256);
 
+constexpectedErrorRegexp=/^TypeError:sizemustbeanumber>=0$/;
 [crypto.randomBytes,crypto.pseudoRandomBytes].forEach(function(f){
 [-1,undefined,null,false,true,{},[]].forEach(function(value){
-assert.throws(function(){f(value);},TypeError);
-assert.throws(function(){f(value,function(){});},TypeError);
+assert.throws(function(){f(value);},expectedErrorRegexp);
+assert.throws(function(){f(value,function(){});},expectedErrorRegexp);
 });
 
 [0,1,2,4,16,256,1024].forEach(function(len){