Enable Deprecation Toolkit for qa tests

This will fail fast whenever we use syntax that
will cause hard errors in Ruby 3.

qa/Gemfile

@@ -8,7 +8,7 @@ gem 'allure-rspec', '~> 2.14.1'
 gem 'capybara', '~> 3.35.0'
 gem 'capybara-screenshot', '~> 1.0.23'
 gem 'rake', '~> 12.3.3'
-gem 'rspec', '~> 3.7'
+gem 'rspec', '~> 3.10'
 gem 'selenium-webdriver', '~> 4.0.0.beta4'
 gem 'airborne', '~> 0.3.4'
 gem 'rest-client', '~> 2.1.0'
@@ -28,6 +28,8 @@ gem 'webdrivers', '~> 4.6'
 gem 'chemlab', '~> 0.7'
 gem 'chemlab-library-www-gitlab-com', '~> 0.1'
 
+gem 'deprecation_toolkit', '~> 1.5.1', require: false
+
 group :development do
   gem 'pry-byebug', '~> 3.5.1', platform: :mri
   gem "ruby-debug-ide", "~> 0.7.0"

qa/Gemfile.lock

@@ -56,6 +56,8 @@ GEM
       adamantium (~> 0.2.0)
       equalizer (~> 0.0.9)
     concurrent-ruby (1.1.9)
+    deprecation_toolkit (1.5.1)
+      activesupport (>= 4.2)
     diff-lcs (1.3)
     domain_name (0.5.20190701)
       unf (>= 0.0.5, < 1.0.0)
@@ -141,18 +143,18 @@ GEM
       netrc (~> 0.8)
     rexml (3.2.5)
     rotp (3.1.0)
-    rspec (3.9.0)
-      rspec-core (~> 3.9.0)
-      rspec-expectations (~> 3.9.0)
-      rspec-mocks (~> 3.9.0)
-    rspec-core (3.9.3)
-      rspec-support (~> 3.9.3)
-    rspec-expectations (3.9.1)
+    rspec (3.10.0)
+      rspec-core (~> 3.10.0)
+      rspec-expectations (~> 3.10.0)
+      rspec-mocks (~> 3.10.0)
+    rspec-core (3.10.1)
+      rspec-support (~> 3.10.0)
+    rspec-expectations (3.10.1)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.9.0)
-    rspec-mocks (3.9.1)
+      rspec-support (~> 3.10.0)
+    rspec-mocks (3.10.2)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.9.0)
+      rspec-support (~> 3.10.0)
     rspec-parameterized (0.4.2)
       binding_ninja (>= 0.2.3)
       parser
@@ -161,7 +163,7 @@ GEM
       unparser
     rspec-retry (0.6.1)
       rspec-core (> 3.3)
-    rspec-support (3.9.4)
+    rspec-support (3.10.2)
     rspec_junit_formatter (0.4.1)
       rspec-core (>= 2, < 4, != 2.12.0)
     ruby-debug-ide (0.7.2)
@@ -215,6 +217,7 @@ DEPENDENCIES
   capybara-screenshot (~> 1.0.23)
   chemlab (~> 0.7)
   chemlab-library-www-gitlab-com (~> 0.1)
+  deprecation_toolkit (~> 1.5.1)
   faker (~> 1.6, >= 1.6.6)
   gitlab-qa
   knapsack (~> 1.17)
@@ -226,7 +229,7 @@ DEPENDENCIES
   rake (~> 12.3.3)
   rest-client (~> 2.1.0)
   rotp (~> 3.1.0)
-  rspec (~> 3.7)
+  rspec (~> 3.10)
   rspec-parameterized (~> 0.4.2)
   rspec-retry (~> 0.6.1)
   rspec_junit_formatter (~> 0.4.1)

qa/qa/page/base.rb

@@ -108,7 +108,7 @@ module QA
         wait_for_requests(skip_finished_loading_check: skip_finished_loading_check)
 
         element_selector = element_selector_css(name, reject_capybara_query_keywords(kwargs))
-        find(element_selector, only_capybara_query_keywords(kwargs))
+        find(element_selector, **only_capybara_query_keywords(kwargs))
       end
 
       def only_capybara_query_keywords(kwargs)

qa/qa/runtime/application_settings.rb

@@ -26,7 +26,7 @@ module QA
         end
 
         def restore_application_settings(*application_settings_keys)
-          set_application_settings(@original_application_settings.slice(*application_settings_keys))
+          set_application_settings(**@original_application_settings.slice(*application_settings_keys))
         end
 
         private

qa/qa/runtime/browser.rb

@@ -148,7 +148,7 @@ module QA
 
           Capybara::Selenium::Driver.new(
             app,
-            selenium_options
+            **selenium_options
           )
         end
 

qa/qa/runtime/feature.rb

@@ -32,7 +32,7 @@ module QA
 
         def enabled?(key, **scopes)
           feature = JSON.parse(get_features).find { |flag| flag['name'] == key.to_s }
-          feature && (feature['state'] == 'on' || feature['state'] == 'conditional' && scopes.present? && enabled_scope?(feature['gates'], scopes))
+          feature && (feature['state'] == 'on' || feature['state'] == 'conditional' && scopes.present? && enabled_scope?(feature['gates'], **scopes))
         end
 
         private
@@ -43,7 +43,7 @@ module QA
           raise AuthorizationError, "Administrator access is required to enable/disable feature flags. #{e.message}"
         end
 
-        def enabled_scope?(gates, scopes)
+        def enabled_scope?(gates, **scopes)
           scopes.each do |key, value|
             case key
             when :project, :group, :user
@@ -71,16 +71,16 @@ module QA
         #   scopes: Any scope (user, project, group) to restrict the change to
         def set_and_verify(key, enable:, **scopes)
           msg = "#{enable ? 'En' : 'Dis'}abling feature: #{key}"
-          msg += " for scope \"#{scopes_to_s(scopes)}\"" if scopes.present?
+          msg += " for scope \"#{scopes_to_s(**scopes)}\"" if scopes.present?
           QA::Runtime::Logger.info(msg)
 
           Support::Retrier.retry_on_exception(sleep_interval: 2) do
-            set_feature(key, enable, scopes)
+            set_feature(key, enable, **scopes)
 
             is_enabled = nil
 
             QA::Support::Waiter.wait_until(sleep_interval: 1) do
-              is_enabled = enabled?(key, scopes)
+              is_enabled = enabled?(key, **scopes)
               is_enabled == enable || !enable && scopes.present?
             end
 

qa/spec/qa_deprecation_toolkit_env.rb

+# frozen_string_literal: true
+
+require 'deprecation_toolkit'
+require 'deprecation_toolkit/rspec'
+require 'concurrent/utility/monotonic_time'
+require 'active_support/gem_version'
+
+module QaDeprecationToolkitEnv
+  # Taken from https://github.com/jeremyevans/ruby-warning/blob/1.1.0/lib/warning.rb#L18
+  def self.kwargs_warning
+    %r{warning: (?:Using the last argument (?:for `.+' )?as keyword parameters is deprecated; maybe \*\* should be added to the call|Passing the keyword argument (?:for `.+' )?as the last hash parameter is deprecated|Splitting the last argument (?:for `.+' )?into positional and keyword parameters is deprecated|The called method (?:`.+' )?is defined here)\n\z}
+  end
+
+  def self.configure!
+    # Enable ruby deprecations for keywords, it's suppressed by default in Ruby 2.7.2
+    Warning[:deprecated] = true
+
+    DeprecationToolkit::Configuration.test_runner = :rspec
+    DeprecationToolkit::Configuration.deprecation_path = 'deprecations'
+    DeprecationToolkit::Configuration.warnings_treated_as_deprecation = [kwargs_warning]
+  end
+end

qa/spec/runtime/api/request_spec.rb

@@ -14,7 +14,7 @@ RSpec.describe QA::Runtime::API::Request do
     end
 
     context 'when oauth_access_token is passed in the query string' do
-      let(:request) { described_class.new(client, '/users', { oauth_access_token: 'foo' }) }
+      let(:request) { described_class.new(client, '/users', oauth_access_token: 'foo') }
 
       it 'does not adds a private_token query string' do
         expect(request.url).to eq 'http://example.com/api/v4/users?oauth_access_token=foo'

qa/spec/spec_helper.rb

@@ -6,6 +6,9 @@ require 'rspec-parameterized'
 require 'active_support/core_ext/hash'
 require 'active_support/core_ext/object/blank'
 
+require_relative 'qa_deprecation_toolkit_env'
+QaDeprecationToolkitEnv.configure!
+
 if ENV['CI'] && QA::Runtime::Env.knapsack? && !ENV['NO_KNAPSACK']
   require 'knapsack'
   Knapsack::Adapters::RSpecAdapter.bind