From 3fcc1f3c55d4380ff708ffc2e40396a0c09ab8a1 Mon Sep 17 00:00:00 2001
From: Trevor Robinson <trevor@scurrilous.com>
Date: Sat, 10 Aug 2019 21:35:02 -0500
Subject: [PATCH] Remove default arguments to support node 4

---
 lib/packets/packet.js                        | 10 ++++++----
 test/integration/connection/test-datetime.js | 15 ++++++++++++---
 2 files changed, 18 insertions(+), 7 deletions(-)

diff --git a/lib/packets/packet.js b/lib/packets/packet.js
index 595b8707a0..9edd1b6b43 100644
--- a/lib/packets/packet.js
+++ b/lib/packets/packet.js
@@ -289,7 +289,7 @@ class Packet {
     return new Date(str + timezone);
   }
 
-  readDateTimeString(decimals, timeSep = ' ') {
+  readDateTimeString(decimals, timeSep) {
     const length = this.readInt8();
     let y = 0;
     let m = 0;
@@ -309,9 +309,11 @@ class Packet {
       H = this.readInt8();
       M = this.readInt8();
       S = this.readInt8();
-      str += `${timeSep}${[leftPad(2, H), leftPad(2, M), leftPad(2, S)].join(
-        ':'
-      )}`;
+      str += `${timeSep || ' '}${[
+        leftPad(2, H),
+        leftPad(2, M),
+        leftPad(2, S)
+      ].join(':')}`;
     }
     if (length > 10) {
       ms = this.readInt32();
diff --git a/test/integration/connection/test-datetime.js b/test/integration/connection/test-datetime.js
index c089a25af0..8e50216e3f 100644
--- a/test/integration/connection/test-datetime.js
+++ b/test/integration/connection/test-datetime.js
@@ -29,12 +29,18 @@ const date3 = null;
 const date4 = '2010-12-10 14:12:09.123456';
 const date5 = '2010-12-10 14:12:09.019';
 
-function adjustTZ(d, offset = d.getTimezoneOffset()) {
+function adjustTZ(d, offset) {
+  if (offset === undefined) {
+    offset = d.getTimezoneOffset();
+  }
   return new Date(d.getTime() - offset * 60000);
 }
 
-function toMidnight(d, offset = d.getTimezoneOffset()) {
+function toMidnight(d, offset) {
   const t = d.getTime();
+  if (offset === undefined) {
+    offset = d.getTimezoneOffset();
+  }
   return new Date(t - (t % (24 * 60 * 60 * 1000)) + offset * 60000);
 }
 
@@ -42,8 +48,11 @@ function formatUTCDate(d) {
   return d.toISOString().substring(0, 10);
 }
 
-function formatUTCDateTime(d, precision = 0) {
+function formatUTCDateTime(d, precision) {
   const raw = d.toISOString().replace('T', ' ');
+  if (precision === undefined) {
+    precision = 0;
+  }
   return precision <= 3
     ? raw.substring(0, 19 + (precision && 1) + precision)
     : raw.substring(0, 23) + '0'.repeat(precision - 3);