[bundler/bundler] Try make some specs platform independent

https://github.com/bundler/bundler/commit/b5900e57a4

spec/bundler/commands/add_spec.rb

@@ -134,6 +134,7 @@ RSpec.describe "bundle add" do
   end
 
   it "shows error message when gem cannot be found" do
+    bundle "config set force_ruby_platform true"
     bundle "add 'werk_it'"
     expect(err).to match("Could not find gem 'werk_it' in")
 

spec/bundler/commands/install_spec.rb

@@ -524,6 +524,8 @@ RSpec.describe "bundle install with gem sources" do
 
   describe "when requesting a quiet install via --quiet" do
     it "should be quiet" do
+      bundle "config set force_ruby_platform true"
+
       gemfile <<-G
         gem 'rack'
       G

spec/bundler/commands/post_bundle_message_spec.rb

@@ -101,6 +101,10 @@ RSpec.describe "post bundle message" do
     end
 
     describe "with misspelled or non-existent gem name" do
+      before do
+        bundle "config set force_ruby_platform true"
+      end
+
       it "should report a helpful error message", :bundler => "< 3" do
         install_gemfile <<-G
           source "#{file_uri_for(gem_repo1)}"

spec/bundler/install/bundler_spec.rb

@@ -30,6 +30,8 @@ RSpec.describe "bundle install" do
     end
 
     it "causes a conflict if explicitly requesting a different version" do
+      bundle "config set force_ruby_platform true"
+
       install_gemfile <<-G
         source "#{file_uri_for(gem_repo2)}"
         gem "rails", "3.0"
@@ -89,6 +91,8 @@ RSpec.describe "bundle install" do
     end
 
     it "causes a conflict if child dependencies conflict" do
+      bundle "config set force_ruby_platform true"
+
       install_gemfile <<-G
         source "#{file_uri_for(gem_repo2)}"
         gem "activemerchant"
@@ -108,6 +112,8 @@ RSpec.describe "bundle install" do
     end
 
     it "causes a conflict if a child dependency conflicts with the Gemfile" do
+      bundle "config set force_ruby_platform true"
+
       install_gemfile <<-G
         source "#{file_uri_for(gem_repo2)}"
         gem "rails_fail"

spec/bundler/install/gems/flex_spec.rb

@@ -192,6 +192,8 @@ RSpec.describe "bundle flex_install" do
     end
 
     it "suggests bundle update when the Gemfile requires different versions than the lock" do
+      bundle "config set force_ruby_platform true"
+
       nice_error = <<-E.strip.gsub(/^ {8}/, "")
         Bundler could not find compatible versions for gem "rack":
           In snapshot (Gemfile.lock):

spec/bundler/install/yanked_spec.rb

@@ -31,6 +31,8 @@ RSpec.context "when installing a bundle that includes yanked gems" do
   end
 
   it "throws the original error when only the Gemfile specifies a gem version that doesn't exist" do
+    bundle "config set force_ruby_platform true"
+
     install_gemfile <<-G
       source "#{file_uri_for(gem_repo4)}"
       gem "foo", "10.0.0"