diff --git a/test/helper.rb b/test/helper.rb
index ff3b6754..6dd6ffb0 100644
--- a/test/helper.rb
+++ b/test/helper.rb
@@ -10,6 +10,8 @@ end
 
 begin
   require "bundler/setup"
+  # bundler/setup may not load bundler
+  require "bundler" unless Bundler.const_defined?(:ORIGINAL_ENV)
 rescue LoadError
   warn "Failed to load bundler ... this should only happen during package building"
 end
@@ -70,12 +72,31 @@ if ENV['CI']
 end
 
 module SkipTestsBasedOnRubyEngine
-  def skip_on_jruby
-    skip "Skipped on JRuby" if Puma.jruby?
+  # called with one or more params, like skip_on :jruby, :windows
+  # optional suffix kwarg is appended to the skip message
+  # optional suffix bt should generally not used
+  def skip_on(*engs, suffix: '', bt: caller)
+    skip_msg = false
+    engs.each do |eng|
+      skip_msg = case eng
+        when :jruby    then "Skipped on JRuby#{suffix}"     if Puma.jruby?
+        when :windows  then "Skipped on Windows#{suffix}"   if Puma.windows?
+        when :appveyor then "Skipped on Appveyor#{suffix}"  if ENV["APPVEYOR"]
+        when :ci       then "Skipped on ENV['CI']#{suffix}" if ENV["CI"]
+        else false
+      end
+      skip skip_msg, bt if skip_msg
+    end
   end
 
-  def skip_on_appveyor
-    skip "Skipped on Appveyor" if ENV["APPVEYOR"]
+  # called with only one param
+  def skip_unless(eng, bt: caller)
+    skip_msg = case eng
+      when :jruby   then "Skip unless JRuby"   unless Puma.jruby?
+      when :windows then "Skip unless Windows" unless Puma.windows?
+      else false
+    end
+    skip skip_msg, bt if skip_msg
   end
 end
 
diff --git a/test/test_binder.rb b/test/test_binder.rb
index 7990085a..944f2a58 100644
--- a/test/test_binder.rb
+++ b/test/test_binder.rb
@@ -10,7 +10,7 @@ class TestBinder < Minitest::Test
   end
 
   def test_localhost_addresses_dont_alter_listeners_for_tcp_addresses
-    skip_on_jruby
+    skip_on :jruby
 
     @binder.parse(["tcp://localhost:10001"], @events)
 
@@ -18,8 +18,7 @@ class TestBinder < Minitest::Test
   end
 
   def test_localhost_addresses_dont_alter_listeners_for_ssl_addresses
-    skip_on_appveyor
-    skip_on_jruby
+    skip_on :jruby
 
     key =  File.expand_path "../../examples/puma/puma_keypair.pem", __FILE__
     cert = File.expand_path "../../examples/puma/cert_puma.pem", __FILE__
@@ -30,8 +29,7 @@ class TestBinder < Minitest::Test
   end
 
   def test_binder_parses_ssl_cipher_filter
-    skip_on_appveyor
-    skip_on_jruby
+    skip_on :jruby
 
     key =  File.expand_path "../../examples/puma/puma_keypair.pem", __FILE__
     cert = File.expand_path "../../examples/puma/cert_puma.pem", __FILE__
@@ -45,7 +43,7 @@ class TestBinder < Minitest::Test
   end
 
   def test_binder_parses_jruby_ssl_options
-    skip unless Puma.jruby?
+    skip_unless :jruby
 
     keystore = File.expand_path "../../examples/puma/keystore.jks", __FILE__
     ssl_cipher_list = "TLS_DHE_RSA_WITH_DES_CBC_SHA,TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA"
diff --git a/test/test_cli.rb b/test/test_cli.rb
index c1d3d71b..31a7d445 100644
--- a/test/test_cli.rb
+++ b/test/test_cli.rb
@@ -63,8 +63,8 @@ class TestCLI < Minitest::Test
     t.join
   end
 
-  unless Puma.jruby? || Puma.windows?
   def test_control_clustered
+    skip_on :jruby, :windows, suffix: " - Puma::Binder::UNIXServer is not defined"
     url = "unix://#{@tmp_path}"
 
     cli = Puma::CLI.new ["-b", "unix://#{@tmp_path2}",
@@ -102,6 +102,7 @@ class TestCLI < Minitest::Test
   end
 
   def test_control
+    skip_on :jruby, :windows, suffix: " - Puma::Binder::UNIXServer is not defined"
     url = "unix://#{@tmp_path}"
 
     cli = Puma::CLI.new ["-b", "unix://#{@tmp_path2}",
@@ -125,6 +126,7 @@ class TestCLI < Minitest::Test
   end
 
   def test_control_stop
+    skip_on :jruby, :windows, suffix: " - Puma::Binder::UNIXServer is not defined"
     url = "unix://#{@tmp_path}"
 
     cli = Puma::CLI.new ["-b", "unix://#{@tmp_path2}",
@@ -147,6 +149,7 @@ class TestCLI < Minitest::Test
   end
 
   def test_control_gc_stats
+    skip_on :jruby, :windows, suffix: " - Puma::Binder::UNIXServer is not defined"
     url = "unix://#{@tmp_path}"
 
     cli = Puma::CLI.new ["-b", "unix://#{@tmp_path2}",
@@ -201,6 +204,7 @@ class TestCLI < Minitest::Test
   end
 
   def test_tmp_control
+    skip_on :jruby
     url = "tcp://127.0.0.1:8232"
     cli = Puma::CLI.new ["--state", @tmp_path, "--control", "auto"]
     cli.launcher.write_state
@@ -217,6 +221,7 @@ class TestCLI < Minitest::Test
   end
 
   def test_state_file_callback_filtering
+    skip_on :jruby, :windows, suffix: " - worker mode not supported"
     cli = Puma::CLI.new [ "--config", "test/config/state_file_testing_config.rb",
                           "--state", @tmp_path ]
     cli.launcher.write_state
@@ -227,8 +232,6 @@ class TestCLI < Minitest::Test
     assert_empty keys_not_stripped
   end
 
-  end # JRUBY or Windows
-
   def test_state
     url = "tcp://127.0.0.1:8232"
     cli = Puma::CLI.new ["--state", @tmp_path, "--control", url]
diff --git a/test/test_integration.rb b/test/test_integration.rb
index 49cc99a4..3d057997 100644
--- a/test/test_integration.rb
+++ b/test/test_integration.rb
@@ -67,7 +67,7 @@ class TestIntegration < Minitest::Test
   end
 
   def restart_server_and_listen(argv)
-    skip_on_appveyor
+    skip_on :windows
     server(argv)
     s = connect
     initial_reply = read_body(s)
@@ -115,7 +115,7 @@ class TestIntegration < Minitest::Test
   end
 
   def test_stop_via_pumactl
-    skip if Puma.jruby? || Puma.windows?
+    skip_on :jruby, :windows
 
     conf = Puma::Configuration.new do |c|
       c.quiet
@@ -148,7 +148,7 @@ class TestIntegration < Minitest::Test
   end
 
   def test_phased_restart_via_pumactl
-    skip if Puma.jruby? || Puma.windows? || ENV['CI']
+    skip_on :jruby, :windows, :ci, suffix: " - UNIX sockets are not recommended"
 
     conf = Puma::Configuration.new do |c|
       c.quiet
@@ -181,7 +181,7 @@ class TestIntegration < Minitest::Test
     until done
       @events.stdout.rewind
       log = @events.stdout.readlines.join("")
-      if log.match(/- Worker \d \(pid: \d+\) booted, phase: 1/)
+      if log =~ /- Worker \d \(pid: \d+\) booted, phase: 1/
         assert_match(/TERM sent/, log)
         assert_match(/- Worker \d \(pid: \d+\) booted, phase: 1/, log)
         done = true
@@ -195,7 +195,7 @@ class TestIntegration < Minitest::Test
   end
 
   def test_kill_unknown_via_pumactl
-    skip if Puma.jruby? || Puma.windows?
+    skip_on :jruby, :windows
 
     # we run ls to get a 'safe' pid to pass off as puma in cli stop
     # do not want to accidently kill a valid other process
@@ -220,7 +220,7 @@ class TestIntegration < Minitest::Test
   end
 
   def test_restart_closes_keepalive_sockets_workers
-    skip_on_jruby
+    skip_on :jruby
     _, new_reply = restart_server_and_listen("-q -w 2 test/rackup/hello.ru")
     assert_equal "Hello World", new_reply
   end
@@ -229,7 +229,7 @@ class TestIntegration < Minitest::Test
   def test_restart_restores_environment
     # jruby has a bug where setting `nil` into the ENV or `delete` do not change the
     # next workers ENV
-    skip_on_jruby
+    skip_on :jruby
 
     initial_reply, new_reply = restart_server_and_listen("-q test/rackup/hello-env.ru")
 
@@ -239,7 +239,7 @@ class TestIntegration < Minitest::Test
   end
 
   def test_term_signal_exit_code_in_single_mode
-    skip if Puma.jruby? || Puma.windows?
+    skip_on :jruby, :windows
 
     pid = start_forked_server("test/rackup/hello.ru")
     _, status = stop_forked_server(pid)
@@ -248,7 +248,7 @@ class TestIntegration < Minitest::Test
   end
 
   def test_term_signal_exit_code_in_clustered_mode
-    skip if Puma.jruby? || Puma.windows?
+    skip_on :jruby, :windows
 
     pid = start_forked_server("-w 2 test/rackup/hello.ru")
     _, status = stop_forked_server(pid)
diff --git a/test/test_puma_server_ssl.rb b/test/test_puma_server_ssl.rb
index d479203f..7ffecc36 100644
--- a/test/test_puma_server_ssl.rb
+++ b/test/test_puma_server_ssl.rb
@@ -1,4 +1,10 @@
 require_relative "helper"
+require "puma/minissl"
+require "puma/puma_http11"
+
+#———————————————————————————————————————————————————————————————————————————————
+#             NOTE: ALL TESTS BYPASSED IF DISABLE_SSL IS TRUE
+#———————————————————————————————————————————————————————————————————————————————
 
 class SSLEventsHelper < ::Puma::Events
   attr_accessor :addr, :cert, :error
@@ -11,7 +17,11 @@ class SSLEventsHelper < ::Puma::Events
 end
 
 DISABLE_SSL = begin
+              Puma::Server.class
               Puma::MiniSSL.check
+              puts "", RUBY_REVISION
+              puts "Puma::MiniSSL OPENSSL_LIBRARY_VERSION: #{Puma::MiniSSL::OPENSSL_LIBRARY_VERSION}",
+                   "                      OPENSSL_VERSION: #{Puma::MiniSSL::OPENSSL_VERSION}", ""
             rescue
               true
             else
@@ -102,7 +112,7 @@ class TestPumaServerSSL < Minitest::Test
   end
 
   def test_ssl_v3_rejection
-    @http.ssl_version='SSLv3'
+    @http.ssl_version= :SSLv3
     assert_raises(OpenSSL::SSL::SSLError) do
       @http.start do
         Net::HTTP::Get.new '/'
@@ -113,7 +123,7 @@ class TestPumaServerSSL < Minitest::Test
     end
   end
 
-end
+end unless DISABLE_SSL
 
 # client-side TLS authentication tests
 class TestPumaServerSSLClient < Minitest::Test
@@ -144,7 +154,7 @@ class TestPumaServerSSLClient < Minitest::Test
     http.use_ssl = true
     http.verify_mode = OpenSSL::SSL::VERIFY_NONE
 
-    blk.call(http)
+    yield http
 
     client_error = false
     begin
@@ -152,7 +162,7 @@ class TestPumaServerSSLClient < Minitest::Test
         req = Net::HTTP::Get.new "/", {}
         http.request(req)
       end
-    rescue OpenSSL::SSL::SSLError
+    rescue OpenSSL::SSL::SSLError, EOFError
       client_error = true
     end
 
@@ -165,7 +175,7 @@ class TestPumaServerSSLClient < Minitest::Test
       assert_equal host, events.addr if error
       assert_equal subject, events.cert.subject.to_s if subject
     end
-
+  ensure
     server.stop(true)
   end
 
@@ -211,4 +221,4 @@ class TestPumaServerSSLClient < Minitest::Test
       http.verify_mode = OpenSSL::SSL::VERIFY_PEER
     end
   end
-end
+end unless DISABLE_SSL
diff --git a/test/test_rack_handler.rb b/test/test_rack_handler.rb
index 767d1b50..e44517ee 100644
--- a/test/test_rack_handler.rb
+++ b/test/test_rack_handler.rb
@@ -48,7 +48,7 @@ class TestPathHandler < Minitest::Test
 
 
   def test_handler_boots
-    skip_on_appveyor
+    skip_on :windows
     in_handler(app) do |launcher|
       hit(["http://0.0.0.0:#{ launcher.connected_port }/test"])
       assert_equal("/test", @input["PATH_INFO"])
diff --git a/test/test_unix_socket.rb b/test/test_unix_socket.rb
index fd2e2289..6e6b993c 100644
--- a/test/test_unix_socket.rb
+++ b/test/test_unix_socket.rb
@@ -1,35 +1,33 @@
 require_relative "helper"
 
-# UNIX sockets are not recommended on JRuby
-# (or Windows)
-unless Puma.jruby? || Puma.windows?
-  class TestPumaUnixSocket < Minitest::Test
+class TestPumaUnixSocket < Minitest::Test
 
-    App = lambda { |env| [200, {}, ["Works"]] }
+  App = lambda { |env| [200, {}, ["Works"]] }
 
-    Path = "test/puma.sock"
+  Path = "test/puma.sock"
 
-    def setup
-      @server = Puma::Server.new App
-      @server.add_unix_listener Path
-      @server.run
-    end
+  def setup
+    # UNIX sockets are not recommended on JRuby or Windows
+    skip_on :jruby, :windows, suffix: " - UNIX sockets are not recommended"
+    @server = Puma::Server.new App
+    @server.add_unix_listener Path
+    @server.run
+  end
 
-    def teardown
-      @server.stop(true)
-      File.unlink Path if File.exist? Path
-    end
+  def teardown
+    @server.stop(true) if @server
+    File.unlink Path if File.exist? Path
+  end
 
-    def test_server
-      sock = UNIXSocket.new Path
+  def test_server
+    sock = UNIXSocket.new Path
 
-      sock << "GET / HTTP/1.0\r\nHost: blah.com\r\n\r\n"
+    sock << "GET / HTTP/1.0\r\nHost: blah.com\r\n\r\n"
 
-      expected = "HTTP/1.0 200 OK\r\nContent-Length: 5\r\n\r\nWorks"
+    expected = "HTTP/1.0 200 OK\r\nContent-Length: 5\r\n\r\nWorks"
 
-      assert_equal expected, sock.read(expected.size)
+    assert_equal expected, sock.read(expected.size)
 
-      sock.close
-    end
+    sock.close
   end
 end