From 69a7449e508907c50c547f6d087cb1a329c24622 Mon Sep 17 00:00:00 2001
From: Paul van Brenk <paul.van.brenk@outlook.com>
Date: Sun, 19 May 2019 12:46:32 -0400
Subject: [PATCH] Fix toBeCloseTo matcher for Node.js 12 and Chrome 74

---
 spec/core/matchers/toBeCloseToSpec.js | 14 ++++++++++++++
 src/core/matchers/toBeCloseTo.js      |  2 +-
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/spec/core/matchers/toBeCloseToSpec.js b/spec/core/matchers/toBeCloseToSpec.js
index bf04c153..402ce88e 100644
--- a/spec/core/matchers/toBeCloseToSpec.js
+++ b/spec/core/matchers/toBeCloseToSpec.js
@@ -90,4 +90,18 @@ describe("toBeCloseTo", function() {
     result = matcher.compare(1.23, 1.234);
     expect(result.pass).toBe(true);
   });
+
+  it("handles edge cases with rounding", function () {
+    var matcher = jasmineUnderTest.matchers.toBeCloseTo(),
+      result;
+
+    // these cases resulted in false negatives in version of V8 
+    // included in Node.js 12 and Chrome 74 (and Edge Chromium)
+    result = matcher.compare(4.030904708957288, 4.0309, 5);
+    expect(result.pass).toBe(true);
+    result = matcher.compare(4.82665525779431,4.82666, 5);
+    expect(result.pass).toBe(true);
+    result = matcher.compare(-2.82665525779431, -2.82666, 5);
+    expect(result.pass).toBe(true);
+  });
 });
diff --git a/src/core/matchers/toBeCloseTo.js b/src/core/matchers/toBeCloseTo.js
index 31c79456..b57ca1ad 100644
--- a/src/core/matchers/toBeCloseTo.js
+++ b/src/core/matchers/toBeCloseTo.js
@@ -26,7 +26,7 @@ getJasmineRequireObj().toBeCloseTo = function() {
         var maxDelta = Math.pow(10, -precision) / 2;
 
         return {
-          pass: Math.round(delta * pow) / pow <= maxDelta
+          pass: Math.round(delta * pow) <= maxDelta * pow
         };
       }
     };