remove global export except in test environments

app/assets/javascripts/behaviors/copy_as_gfm.js

@@ -285,7 +285,7 @@ const gfmRules = {
   },
 };
 
-class CopyAsGFM {
+export class CopyAsGFM {
   constructor() {
     $(document).on('copy', '.md, .wiki', (e) => { CopyAsGFM.copyAsGFM(e, CopyAsGFM.transformGFMSelection); });
     $(document).on('copy', 'pre.code.highlight, .diff-content .line_content', (e) => { CopyAsGFM.copyAsGFM(e, CopyAsGFM.transformCodeSelection); });
@@ -470,7 +470,12 @@ class CopyAsGFM {
   }
 }
 
-window.gl = window.gl || {};
-window.gl.CopyAsGFM = CopyAsGFM;
+// Export CopyAsGFM as a global for rspec to access
+// see /spec/features/copy_as_gfm_spec.rb
+if (process.env.NODE_ENV !== 'production') {
+  window.CopyAsGFM = CopyAsGFM;
+}
 
-new CopyAsGFM();
+export default function initCopyAsGFM() {
+  return new CopyAsGFM();
+}

app/assets/javascripts/behaviors/index.js

 import './autosize';
 import './bind_in_out';
-import './copy_as_gfm';
+import initCopyAsGFM from './copy_as_gfm';
 import './details_behavior';
 import installGlEmojiElement from './gl_emoji';
 import './quick_submit';
@@ -8,3 +8,4 @@ import './requires_input';
 import './toggler_behavior';
 
 installGlEmojiElement();
+initCopyAsGFM();

spec/features/copy_as_gfm_spec.rb

@@ -664,7 +664,7 @@ describe 'Copy as GFM', :js do
   def html_to_gfm(html, transformer = 'transformGFMSelection', target: nil)
     js = <<-JS.strip_heredoc
       (function(html) {
-        var transformer = window.gl.CopyAsGFM[#{transformer.inspect}];
+        var transformer = window.CopyAsGFM[#{transformer.inspect}];
 
         var node = document.createElement('div');
         $(html).each(function() { node.appendChild(this) });
@@ -678,7 +678,7 @@ describe 'Copy as GFM', :js do
         node = transformer(node, target);
         if (!node) return null;
 
-        return window.gl.CopyAsGFM.nodeToGFM(node);
+        return window.CopyAsGFM.nodeToGFM(node);
       })("#{escape_javascript(html)}")
     JS
     page.evaluate_script(js)

spec/javascripts/copy_as_gfm_spec.js → spec/javascripts/behaviors/copy_as_gfm_spec.js

-import '~/copy_as_gfm';
+import { CopyAsGFM } from '~/behaviors/copy_as_gfm';
 
-(() => {
-  describe('gl.CopyAsGFM', () => {
-    describe('gl.CopyAsGFM.pasteGFM', () => {
+describe('CopyAsGFM', () => {
+  describe('CopyAsGFM.pasteGFM', () => {
     function callPasteGFM() {
       const e = {
         originalEvent: {
@@ -24,7 +23,7 @@ import '~/copy_as_gfm';
         preventDefault() {},
       };
 
-        window.gl.CopyAsGFM.pasteGFM(e);
+      CopyAsGFM.pasteGFM(e);
     }
 
     it('wraps pasted code when not already in code tags', () => {
@@ -45,5 +44,4 @@ import '~/copy_as_gfm';
       callPasteGFM();
     });
   });
-  });
-})();
+});