Uses Pathname#join rather than File#join when possible

spec/shared_examples/dynamic_finders/wp_items.rb

@@ -1,6 +1,6 @@
 shared_examples WPScan::Finders::DynamicFinder::WpItems::Finder do
   let(:passive_fixture) do
-    File.join(fixtures, "#{described_class.to_s.demodulize.underscore}_passive_all.html")
+    fixtures.join("#{described_class.to_s.demodulize.underscore}_passive_all.html")
   end
 
   describe '#passive_configs' do
@@ -69,7 +69,7 @@ shared_examples WPScan::Finders::DynamicFinder::WpItems::Finder do
         configs.each do |finder_class, config|
           finder_super_class = config['class'] || finder_class
 
-          fixture           = File.join(fixtures, slug, finder_class.underscore, config['path'])
+          fixture           = fixtures.join(slug, finder_class.underscore, config['path'])
           stubbed_response  = df_stubbed_response(fixture, finder_super_class)
           path              = finder.aggressive_path(slug, config)
 

spec/shared_examples/finders/wp_items/urls_in_homepage.rb

@@ -1,6 +1,6 @@
 shared_examples 'App::Finders::WpItems::URLsInHomepage' do
   before do
-    stub_request(:get, finder.target.url).to_return(body: File.read(File.join(fixtures, file)))
+    stub_request(:get, finder.target.url).to_return(body: File.read(fixtures.join(file)))
   end
 
   describe '#items_from_links' do

spec/shared_examples/target/platform/wordpress/custom_directories.rb

@@ -1,5 +1,5 @@
 shared_examples 'WordPress::CustomDirectories' do
-  let(:fixtures) { File.join(super(), 'custom_directories') }
+  let(:fixtures) { super().join('custom_directories') }
 
   describe '#content_dir' do
     {
@@ -7,9 +7,7 @@ shared_examples 'WordPress::CustomDirectories' do
       relative_one: 'wp-content', relative_two: 'wp-content', cache: 'wp-content'
     }.each do |file, expected|
       it "returns #{expected} for #{file}.html" do
-        fixture = File.join(fixtures, "#{file}.html")
-
-        stub_request(:get, target.url).to_return(body: File.read(fixture))
+        stub_request(:get, target.url).to_return(body: File.read(fixtures.join("#{file}.html")))
 
         expect(target.content_dir).to eql expected
       end

spec/shared_examples/views/main_theme.rb

@@ -21,7 +21,7 @@ shared_examples 'App::Views::MainTheme' do
         expect(target).to receive(:content_dir).at_least(1).and_return('wp-content')
         stub_request(:get, /.*/)
         stub_request(:get, /.*\.css\z/)
-          .to_return(body: File.read(File.join(FIXTURES, 'models', 'theme', 'style.css')))
+          .to_return(body: File.read(FIXTURES.join('models', 'theme', 'style.css')))
       end
 
       context 'when no verbose' do