Disable source-map-support import during jest tests

index.js

@@ -1,5 +1,7 @@
 // make sourcemaps work!
-require("source-map-support/register");
+if (process.env.NODE_ENV !== "test") {
+  require("source-map-support/register");
+}
 
 const debug = require("debug")("ganache");
 

lib/provider.js

@@ -1,5 +1,7 @@
 // make sourcemaps work!
-require("source-map-support/register");
+if (process.env.NODE_ENV !== "test") {
+  require("source-map-support/register");
+}
 
 let ProviderEngine = require("web3-provider-engine");
 let SubscriptionSubprovider = require("web3-provider-engine/subproviders/subscriptions");

lib/server.js

@@ -1,5 +1,7 @@
 // make sourcemaps work!
-require("source-map-support/register");
+if (process.env.NODE_ENV !== "test") {
+  require("source-map-support/register");
+}
 
 var Provider = require("./provider");
 var webSocketServer = require("./webSocketServer");

public-exports.js

@@ -1,5 +1,7 @@
 // make sourcemaps work!
-require("source-map-support/register");
+if (process.env.NODE_ENV !== "test") {
+  require("source-map-support/register");
+}
 
 const Provider = require("./lib/provider");
 const Server = require("./lib/server");