From da32d736c8c2a54e2ebb0c67a2f8a23ed20d8543 Mon Sep 17 00:00:00 2001
From: Michael Lehenbauer <mikelehen@google.com>
Date: Wed, 25 Apr 2018 14:30:45 -0700
Subject: [PATCH] Use correct assert() method so we get good error messages.

BEFORE:
     AssertionError: expected null to roughly deeply equal undefined

AFTER:
      AssertionError: expected { Object (elements) } to roughly deeply equal { Object (elements) }
      + expected - actual
       {
         "elements": [
           {
      -      "internalValue": "foo"
      +      "internalValue": "tag"
             "typeOrder": 4
           }
         ]
       }
---
 packages/firestore/test/util/equality_matcher.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/firestore/test/util/equality_matcher.ts b/packages/firestore/test/util/equality_matcher.ts
index fde942c1c66..5eaca68d319 100644
--- a/packages/firestore/test/util/equality_matcher.ts
+++ b/packages/firestore/test/util/equality_matcher.ts
@@ -71,13 +71,13 @@ export function addEqualityMatcher(): void {
             utils.flag(this, 'message', msg);
             const left = utils.flag(this, 'object');
 
-            chai.assert(
+            new chai.Assertion(left).assert(
               customDeepEqual(left, right),
               'expected #{act} to roughly deeply equal #{exp}',
               'expected #{act} to not roughly deeply equal #{exp}',
               left,
               right,
-              true
+              /*showDiff=*/ true
             );
           } else {
             originalFunction.apply(this, args);