Added slices

Change-Id: I9dfaa9348fa82da844a04c0c2a58ce07e9fa3a28
diff --git a/src/index.spec.js b/src/index.spec.js
index 3f4ad63..e2bdbd0 100644
--- a/src/index.spec.js
+++ b/src/index.spec.js
@@ -1,5 +1,4 @@
 Error.stackTraceLimit = Infinity;
-
 require('core-js/client/shim');
 
 require('@angular/common');
@@ -13,7 +12,15 @@
 require('zone.js/dist/async-test');
 require('zone.js/dist/fake-async-test');
 const context = require.context('./app', true, /\.(js|ts|tsx)$/);
-context.keys().forEach(context);
+// context.keys().forEach(context);
+context.keys().forEach(function(path) {
+  try {
+    context(path);
+  } catch(err) {
+    console.error('[ERROR] WITH SPEC FILE: ', path);
+    console.error(err);
+  }
+});
 const testing = require('@angular/core/testing');
 const testingBrowser = require('@angular/platform-browser-dynamic/testing');