From 0854e3fb2b9789b56b71d0e40e59a29bf82bd76f Mon Sep 17 00:00:00 2001
From: Tz-Huan Huang <tzhuan@potentia.asia>
Date: Wed, 8 Sep 2021 11:52:30 +0800
Subject: [PATCH 1/2] Fix a long standing bug in Decimal128.fromString()

  - https://github.com/mongodb/js-bson/issues/334
  - https://jira.mongodb.org/browse/NODE-3021
---
 src/decimal128.ts             | 2 +-
 test/node/decimal128_tests.js | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/decimal128.ts b/src/decimal128.ts
index ccf35743..a7b58317 100644
--- a/src/decimal128.ts
+++ b/src/decimal128.ts
@@ -304,7 +304,7 @@ export class Decimal128 {
       lastDigit = nDigitsStored - 1;
       significantDigits = nDigits;
       if (significantDigits !== 1) {
-        while (representation[firstNonZero + significantDigits - 1] === '0') {
+        while (digits[firstNonZero + significantDigits - 1] === 0) {
           significantDigits = significantDigits - 1;
         }
       }
diff --git a/test/node/decimal128_tests.js b/test/node/decimal128_tests.js
index 9789cf8e..e198119b 100644
--- a/test/node/decimal128_tests.js
+++ b/test/node/decimal128_tests.js
@@ -1210,6 +1210,8 @@ describe('Decimal128', function () {
     expect(new Decimal128('00').toString()).to.equal('0');
     expect(new Decimal128('0.5').toString()).to.equal('0.5');
     expect(new Decimal128('-0.5').toString()).to.equal('-0.5');
+    expect(new Decimal128('-0.0097').toString()).to.equal('-0.0097');
+    expect(new Decimal128('-0.0011').toString()).to.equal('-0.0011');
     expect(new Decimal128('-1e400').toString()).to.equal('-1E+400');
     done();
   });

From 70fefa555b49e042ae2738ab983ab0eb21594c3b Mon Sep 17 00:00:00 2001
From: Tz-Huan Huang <tzhuan@gmail.com>
Date: Thu, 9 Sep 2021 11:01:48 +0800
Subject: [PATCH 2/2] Add more test cases for leading/trailing zeros

Co-authored-by: Daria Pardue <81593090+dariakp@users.noreply.github.com>
---
 test/node/decimal128_tests.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/test/node/decimal128_tests.js b/test/node/decimal128_tests.js
index e198119b..e5ba7df3 100644
--- a/test/node/decimal128_tests.js
+++ b/test/node/decimal128_tests.js
@@ -1212,6 +1212,9 @@ describe('Decimal128', function () {
     expect(new Decimal128('-0.5').toString()).to.equal('-0.5');
     expect(new Decimal128('-0.0097').toString()).to.equal('-0.0097');
     expect(new Decimal128('-0.0011').toString()).to.equal('-0.0011');
+    expect(new Decimal128('-0.00110').toString()).to.equal('-0.00110');
+    expect(new Decimal128('0.0011').toString()).to.equal('0.0011');
+    expect(new Decimal128('0.00110').toString()).to.equal('0.00110');
     expect(new Decimal128('-1e400').toString()).to.equal('-1E+400');
     done();
   });