[rb] Enable debug gem for MRI only

Author: p0deje

rb/Gemfile

@@ -4,3 +4,5 @@ source 'https://rubygems.org'
 Dir["#{__dir__}/*.gemspec"].each do |spec|
   gemspec name: File.basename(spec, '.gemspec')
 end
+
+gem 'debug', '~> 1.7', require: false, platforms: %i[mri mingw x64_mingw]

rb/Gemfile.lock

@@ -22,7 +22,6 @@ GEM
     diff-lcs (1.5.0)
     hashdiff (1.0.1)
     io-console (0.6.0)
-    io-console (0.6.0-java)
     irb (1.6.4)
       reline (>= 0.3.0)
     json (2.6.3)

rb/selenium-webdriver.gemspec

@@ -53,7 +53,6 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency 'rubyzip', ['>= 1.2.2', '< 3.0']
   s.add_runtime_dependency 'websocket', ['~> 1.0']
 
-  s.add_development_dependency 'debug', ['~> 1.7']
   s.add_development_dependency 'rack', ['~> 2.0']
   s.add_development_dependency 'rspec', ['~> 3.0']
   s.add_development_dependency 'rubocop', ['~> 1.42']

rb/spec/integration/selenium/webdriver/spec_helper.rb

@@ -17,9 +17,13 @@
 # specific language governing permissions and limitations
 # under the License.
 
-require 'debug/session'
-DEBUGGER__::CONFIG[:fork_mode] = :parent
-DEBUGGER__.open(nonstop: true)
+begin
+  require 'debug/session'
+  DEBUGGER__::CONFIG[:fork_mode] = :parent
+  DEBUGGER__.open(nonstop: true)
+rescue LoadError
+  # not supported on JRuby and TruffleRuby
+end
 
 require 'rubygems'
 require 'time'

rb/spec/unit/selenium/webdriver/spec_helper.rb

@@ -17,9 +17,13 @@
 # specific language governing permissions and limitations
 # under the License.
 
-require 'debug/session'
-DEBUGGER__::CONFIG[:fork_mode] = :parent
-DEBUGGER__.open(nonstop: true)
+begin
+  require 'debug/session'
+  DEBUGGER__::CONFIG[:fork_mode] = :parent
+  DEBUGGER__.open(nonstop: true)
+rescue LoadError
+  # not supported on JRuby and TruffleRuby
+end
 
 require 'rubygems'
 require 'time'