Print information that protocol tests are skipped only once

Author: ono-max

test/support/cdp_utils.rb

@@ -31,12 +31,7 @@ def setup_chrome_debuggee
       MSG
     end
 
-    pt = ENV['RUBY_DEBUG_PROTOCOL_TEST']
-    PROTOCOL_TEST = pt == 'true' || pt == '1'
-
     def connect_to_cdp_server
-      omit 'Tests for CDP were skipped. You can enable them with RUBY_DEBUG_PROTOCOL_TEST=1.' unless PROTOCOL_TEST
-
       ENV['RUBY_DEBUG_TEST_MODE'] = 'true'
 
       sock = Socket.tcp HOST, @remote_info.port
@@ -69,6 +64,8 @@ def connect_to_cdp_server
     HOST = '127.0.0.1'
 
     def run_cdp_scenario program, &msgs
+      return unless Protocol_TestUtils::PROTOCOL_TEST
+
       ENV['RUBY_DEBUG_TEST_UI'] = 'chrome'
 
       program = program.delete_suffix "\n"

test/support/dap_utils.rb

@@ -97,11 +97,9 @@ def connect_to_dap_server test_info
     end
 
     TIMEOUT_SEC = (ENV['RUBY_DEBUG_TIMEOUT_SEC'] || 10).to_i
-    dt = ENV['RUBY_DEBUG_PROTOCOL_TEST']
-    DAP_TEST = dt == 'true' || dt == '1'
 
     def run_dap_scenario program, &msgs
-      omit 'Tests for DAP were skipped. You can enable them with RUBY_DEBUG_PROTOCOL_TEST=1.' unless DAP_TEST
+      return unless Protocol_TestUtils::PROTOCOL_TEST
 
       begin
         write_temp_file(strip_line_num(program))

test/support/protocol_utils.rb

@@ -37,10 +37,14 @@ class Detach < StandardError
     pt = ENV['RUBY_DEBUG_PROTOCOL_TEST']
     PROTOCOL_TEST = pt == 'true' || pt == '1'
 
+    unless PROTOCOL_TEST
+      warn 'Tests for CDP and DAP were skipped. You can enable them with RUBY_DEBUG_PROTOCOL_TEST=1.'
+    end
+
     # API
 
     def run_protocol_scenario program, dap: true, cdp: true, &scenario
-      omit 'Tests for CDP and DAP were skipped. You can enable them with RUBY_DEBUG_PROTOCOL_TEST=1.' unless PROTOCOL_TEST
+      return unless PROTOCOL_TEST
 
       write_temp_file(strip_line_num(program))
       execute_dap_scenario scenario if dap