Fixed creating of JavaScript test using "codeceptjs gt" (#3611)

Author: mirao

Diff for: lib/command/generate.js

@@ -24,6 +24,7 @@ Scenario('test something', async ({ {{actor}} }) => {
 // generates empty test
 module.exports.test = function (genPath) {
   const testsPath = getTestRoot(genPath);
+  global.codecept_dir = testsPath;
   const config = getConfig(testsPath);
   if (!config) return;