disable flaky tests in JRuby 9.2

Author: eli-darkly

.circleci/config.yml

@@ -20,6 +20,7 @@ workflows:
           name: JRuby 9.2
           docker-image: jruby:9.2-jdk
           jruby: true
+          skip-end-to-end-http-tests: 1  # webrick doesn't work reliably in JRuby 9.2
       - build-test-linux:
           name: JRuby 9.3
           docker-image: jruby:9.3-jdk
@@ -33,10 +34,16 @@ jobs:
       jruby:
         type: boolean
         default: false
+      skip-end-to-end-http-tests:
+        type: string
+        default: ""
 
     docker:
       - image: <<parameters.docker-image>>
 
+    env:
+      LD_SKIP_END_TO_END_HTTP_TESTS: <<parameters.skip-end-to-end-http-tests>>
+
     steps:
       - checkout
       - when:

spec/client_spec.rb

@@ -5,6 +5,10 @@
 # End-to-end tests of the SSE client against a real server
 #
 describe SSE::Client do
+  before(:each) do
+    skip("end-to-end HTTP tests are disabled because they're unreliable on this platform") if !stub_http_server_available?
+  end
+
   subject { SSE::Client }
 
   let(:simple_event_1) { SSE::StreamEvent.new(:go, "foo")}

spec/http_stub.rb

@@ -2,6 +2,11 @@
 require "webrick/httpproxy"
 require "webrick/https"
 
+def stub_http_server_available?
+  flag = ENV["LD_SKIP_END_TO_END_HTTP_TESTS"]
+  flag.nil? || flag == ""
+end
+
 class StubHTTPServer
   attr_reader :port