Fixed Mocha from exiting before reporter has a chance to print stack traces

test/integration/helper.ts

@@ -56,8 +56,4 @@ before(() => {
   stdHooks.hookWrite();
 });
 
-after(() => {
-  process.exit();
-});
-
 export const helper = new IntegrationTestHelper();

test/mocha.opts

@@ -10,3 +10,4 @@
 
 --recursive
 --timeout 5000
+--exit