Test for AsynchronousCloseException text when done running

.travis.yml

@@ -29,6 +29,8 @@ matrix:
       env: QMAKE=/usr/lib/x86_64-linux-gnu/qt4/bin/qmake
     - rvm: 2.3.3
       gemfile: gemfiles/master.gemfile
+    - rvm: jruby-9.1.8.0
+      gemfile: Gemfile
   allow_failures:
     - gemfile: gemfiles/master.gemfile
 gemfile:

spec/fixtures/exit_text.rb

@@ -0,0 +1,9 @@
+require 'spec_helper'
+# require 'selenium-webdriver'
+
+RSpec.describe Capybara::Webkit::Driver do
+  it "should exit with a zero exit status" do
+    browser = Capybara::Webkit::Driver.new(TestApp).browser
+    expect(true).to eq(true)
+  end
+end

spec/server_spec.rb

@@ -25,6 +25,12 @@ describe Capybara::Webkit::Connection do
     end
   end
 
+  it "shouldn't output extraneous warnings when exiting", skip_on_windows: true do
+    output_str, status = Open3.capture2e("rspec spec/fixtures/exit_text.rb")
+    expect(status.exitstatus).to eq(0)
+    expect(output_str).not_to include("AsynchronousCloseException")
+  end
+
   it "raises an error if the server has stopped", skip_on_windows: true do
     path = "false"
     stub_const("Capybara::Webkit::Server::SERVER_PATH", path)