Update external authentication skip

Author: cjbj

test/externalAuth.js

@@ -244,8 +244,9 @@ describe('5. externalAuth.js', function() {
 
   describe('5.2 tests only work when externalAuth is configured on DB', function() {
 
-    // need to skip these tests if external authentication is not configured
-    var it = (process.env.NODE_ORACLEDB_EXTERNALAUTH === true) ? global.it : global.it.skip;
+    before(function() {
+      if ( !(process.env.NODE_ORACLEDB_EXTERNALAUTH) ) this.skip();
+    });
 
     it("5.2.1 can get connection from oracledb with external authentication", function(done) {