code style updates

lib/capybara/spec/session/has_css_spec.rb

@@ -1,5 +1,7 @@
 # frozen_string_literal: true
 
+# rubocop:disable RSpec/Capybara/SpecificMatcher
+
 Capybara::SpecHelper.spec '#has_css?' do
   before do
     @session.visit('/with_html')
@@ -373,3 +375,5 @@ Capybara::SpecHelper.spec '#has_no_css?' do
     end
   end
 end
+
+# rubocop:enable RSpec/Capybara/SpecificMatcher

spec/counter_spec.rb

@@ -3,31 +3,32 @@
 require 'spec_helper'
 
 RSpec.describe Capybara::Server::Middleware::Counter do
-  let(:counter) { Capybara::Server::Middleware::Counter.new  }
+  let(:counter) { described_class.new }
   let(:uri) { '/example' }
 
-  context '#increment' do
+  describe '#increment' do
     it 'successfully' do
       counter.increment(uri)
-      expect(counter.positive?).to be true
+      expect(counter).to be_positive
     end
   end
 
-  context 'decrement' do
+  describe '#decrement' do
     before do
       counter.increment(uri)
-      expect(counter.positive?).to be true
     end
 
     context 'successfully' do
       it 'with same uri' do
+        expect(counter).to be_positive
         counter.decrement(uri)
-        expect(counter.positive?).to be false
+        expect(counter).not_to be_positive
       end
 
       it 'with changed uri' do
+        expect(counter).to be_positive
         counter.decrement('/')
-        expect(counter.positive?).to be false
+        expect(counter).not_to be_positive
       end
     end
   end

spec/selenium_spec_firefox_remote.rb

@@ -21,7 +21,7 @@ def ensure_selenium_running!
   rescue StandardError
     if timer.expired?
       raise 'Selenium is not running. ' \
-            "You can run a selenium server easily with: \n" \
+            "You can run a selenium server easily with: \n. " \
             '$ docker-compose up -d selenium_firefox'
     else
       puts 'Waiting for Selenium docker instance...'