🐛 Fix test generator for protocol tests

Author: marianosimone

test/tool/test_builder.rb

@@ -363,7 +363,7 @@ def #{@method}
     def create_scenario_and_program
       <<-TEST.chomp
 
-  class #{@class}#{@current_time} < TestCase
+  class #{@class}#{@current_time} < ProtocolTestCase
     PROGRAM = <<~RUBY
       #{format_program}
     RUBY
@@ -399,7 +399,7 @@ def create_initialized_content
       <<~TEST
         # frozen_string_literal: true
 
-        require_relative '../support/test_case'
+        require_relative '../support/protocol_test_case'
 
         module DEBUGGER__
           #{create_scenario_and_program}
@@ -604,7 +604,7 @@ def #{@method}
     def create_scenario_and_program
       <<-TEST.chomp
 
-  class #{@class}#{@current_time} < TestCase
+  class #{@class}#{@current_time} < ProtocolTestCase
     PROGRAM = <<~RUBY
       #{format_program}
     RUBY
@@ -640,7 +640,7 @@ def create_initialized_content
       <<~TEST
         # frozen_string_literal: true
 
-        require_relative '../support/test_case'
+        require_relative '../support/protocol_test_case'
 
         module DEBUGGER__
           #{create_scenario_and_program}