fix for old npm version

Author: moos

package.json

@@ -26,7 +26,7 @@
   "scripts": {
     "lint": "xo",
     "pretest": "rm -rf .nyc_output",
-    "test": "npm --node run test:node && npm --electron run test:electron && npm run test:browser",
+    "test": "npm --env=node run test:node && npm --env=electron run test:electron && npm run test:browser",
     "test:browser": "karma start --single-run",
     "test:node": "nyc --no-clean mocha --exit",
     "test:electron": "nyc --no-clean  mocha --exit",

test.js

@@ -2,11 +2,11 @@
 
 /** pre-load conditions */
 let env = 'browser';
-if (process.env.npm_config_electron) {
+if (process.env.npm_config_env === 'electron') {
 	// Force Electron mode
 	process.type = 'renderer';
 	env = 'Electron';
-} else if (process.env.npm_config_node) {
+} else if (process.env.npm_config_env === 'node') {
 	env = 'node';
 }
 env = ' (' + env + ')';