Set Error.stackTraceLimit to infinity

Update beautifulStack's RegExp
Do not modify original error's stack property

Author: Mahdi Dibaiee

index.js

@@ -7,6 +7,8 @@ var Runner = require('./lib/runner');
 var log = new Squeak({separator: ' '});
 var runner = new Runner();
 
+Error.stackTraceLimit = Infinity;
+
 log.type('success', {
 	color: 'green',
 	prefix: figures.tick
@@ -38,7 +40,7 @@ function stack(results) {
 
 		// Don't print the full stack but the only useful line showing
 		// the actual test file stack
-		var reg = /\((?:[\\\/](?:(?!node_modules[\\\/]ava[\\\/])[^:\\\/])+)+:\d+:\d+\)/;
+		var reg = /(?:^(?! {4}at\b).{6})|(?:\((?:[\\\/](?:(?!node_modules[\\\/]ava[\\\/])[^:\\\/])+)+:\d+:\d+\))/;
 		function beautifulStack(stack) {
 			var found = false;
 			return stack.split('\n').filter(function (line) {
@@ -47,10 +49,10 @@ function stack(results) {
 				return !found || relevant;
 			}).join('\n');
 		}
-		result.error.stack = beautifulStack(result.error.stack);
+		var stack = beautifulStack(result.error.stack);
 
 		log.writelpad(chalk.red(i + '.', result.title));
-		log.writelpad(chalk.red(result.error.stack));
+		log.writelpad(chalk.red(stack));
 		log.write();
 	});
 }