Enable frozen string across project (#1319)

Turn on frozen string support in all files by using a comment to avoid
enabling across dependencies where it may not work.

Fixes: #1177

spec/spec_helper.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'simplecov'
 require 'simplecov-lcov'
 

spec/support/binding_proc.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 ##
 # A simple extension of the Proc class that supports setting a custom binding
 # and evaluates everything in the Proc using the new binding.

spec/support/environment_helper.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'ostruct'
 require 'pathname'
 

spec/support/libvirt_context.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'fog/libvirt'
 
 shared_context 'libvirt' do

spec/support/matchers/have_file_content.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "rspec/expectations/version"
 #
 # Taken from https://github.com/cucumber/aruba/blob/main/lib/aruba/matchers/file/have_file_content.rb

spec/support/sharedcontext.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 shared_context 'unit' do

spec/support/temporary_dir.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 shared_context 'temporary_dir' do
   around do |example|
     Dir.mktmpdir("rspec-") do |dir|

spec/unit/action/clean_machine_folder_spec.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 require 'support/sharedcontext'
 

spec/unit/action/create_domain_spec.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 require 'support/sharedcontext'
 require 'support/libvirt_context'

spec/unit/action/create_domain_volume_spec.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 require 'support/sharedcontext'
 require 'support/libvirt_context'

spec/unit/action/destroy_domain_spec.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 require 'support/sharedcontext'
 require 'support/libvirt_context'

spec/unit/action/forward_ports_spec.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 require 'support/sharedcontext'
 require 'support/libvirt_context'

spec/unit/action/halt_domain_spec.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 require 'support/sharedcontext'
 require 'support/libvirt_context'

spec/unit/action/handle_box_image_spec.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 require 'json'
 require 'support/sharedcontext'
@@ -77,7 +79,7 @@ describe VagrantPlugins::ProviderLibvirt::Action::HandleBoxImage do
           ]
         }
         allow(env[:machine]).to receive_message_chain("box.directory.join") do |arg|
-          '/test/'.concat(arg.to_s)
+          '/test/' + arg.to_s
         end
       end
 
@@ -197,7 +199,7 @@ describe VagrantPlugins::ProviderLibvirt::Action::HandleBoxImage do
           ],
         ]}
         allow(env[:machine]).to receive_message_chain("box.directory.join") do |arg|
-          '/test/'.concat(arg.to_s)
+          '/test/' + arg.to_s
         end
         allow(status).to receive(:success?).and_return(true)
         allow(Open3).to receive(:capture3).with('qemu-img', 'info', '--output=json', '/test/box.img').and_return([
@@ -334,7 +336,7 @@ describe VagrantPlugins::ProviderLibvirt::Action::HandleBoxImage do
           ]
         }
         allow(env[:machine]).to receive_message_chain("box.directory.join") do |arg|
-          '/test/'.concat(arg.to_s)
+          '/test/' + arg.to_s
         end
       end
 
@@ -354,7 +356,7 @@ describe VagrantPlugins::ProviderLibvirt::Action::HandleBoxImage do
         allow(env[:machine]).to receive_message_chain("box.version") { '1.1.1' }
         allow(env[:machine]).to receive_message_chain("box.metadata") { box_metadata }
         allow(env[:machine]).to receive_message_chain("box.directory.join") do |arg|
-          '/test/'.concat(arg.to_s)
+          '/test/' + arg.to_s
         end
         allow(status).to receive(:success?).and_return(true)
         allow(Open3).to receive(:capture3).with('qemu-img', 'info', "--output=json", '/test/box.img').and_return([

spec/unit/action/package_domain_spec.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 require 'support/sharedcontext'
 

spec/unit/action/set_name_of_domain_spec.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe VagrantPlugins::ProviderLibvirt::Action::SetNameOfDomain do

spec/unit/action/start_domain_spec.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 require 'support/sharedcontext'
 require 'support/libvirt_context'

spec/unit/action/wait_till_up_spec.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'vagrant-libvirt/action/wait_till_up'
 require 'vagrant-libvirt/errors'
 

spec/unit/config_spec.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'support/binding_proc'
 
 require 'spec_helper'

spec/unit/templates/domain_spec.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'support/sharedcontext'
 
 require 'vagrant-libvirt/config'

spec/unit/util/byte_number_spec.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 require 'vagrant-libvirt/util/byte_number'