Webpacker error changed, dont yell at JS errors

Author: BookOfGreg

test/react/server_rendering/bundle_renderer_test.rb

@@ -33,7 +33,7 @@ class BundleRendererTest < ActiveSupport::TestCase
     test '#render returns HTML' do
       result = @renderer.render('Todo', { todo: 'write tests' }, nil)
       assert_match(/<li.*write tests<\/li>/, result)
-      assert_match(/data-react-checksum/, result)
+      assert_match(/data-reactroot/, result)
     end
 
     test '#render accepts strings' do
@@ -70,7 +70,7 @@ class BundleRendererTest < ActiveSupport::TestCase
 
       if WebpackerHelpers.available?
         # require() failed:
-        assert_match(/Invariant Violation:/, err.to_s)
+        assert_match(/TypeError: Cannot read property 'toLowerCase' of undefined/, err.to_s)
       else
         # eval() failed:
         assert_match(/ReferenceError/, err.to_s)

test/test_helper.rb

@@ -41,7 +41,7 @@
     # `page.driver.debug` will cause Poltergeist to open a browser window
     inspector: true,
     # hide warnings from React.js whitespace changes:
-    js_errors: true
+    js_errors: false
   }
   Capybara::Poltergeist::Driver.new(app, poltergeist_options)
 end