From 557d62269eb273309b7805149aaaf45d6eed0178 Mon Sep 17 00:00:00 2001
From: Adam Plumer <caerus.karu@gmail.com>
Date: Sun, 11 Feb 2018 14:16:31 -0500
Subject: [PATCH] build: fix runtime errors not being logged out on karma
 initialization

* Equivalent commit to angular/material#9888
---
 test/karma-test-shim.js | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/test/karma-test-shim.js b/test/karma-test-shim.js
index 5723460f0..9cb1f1044 100644
--- a/test/karma-test-shim.js
+++ b/test/karma-test-shim.js
@@ -83,9 +83,15 @@ System.config({
 });
 
 // Configure the Angular test bed and run all specs once configured.
- configureTestBed()
+configureTestBed()
   .then(runSpecs)
-  .then(__karma__.start, __karma__.error);
+  .then(__karma__.start, function(error) {
+    // Passing in the error object directly to Karma won't log out the stack trace and
+    // passing the `originalErr` doesn't work correctly either. We have to log out the
+    // stack trace so we can actually debug errors before the tests have started.
+    console.error(error.originalErr.stack);
+    __karma__.error(error);
+  });
 
 
 /** Runs the specs in Karma. */