Validate page after visiting it

When `visit` is called with a block it now visits the page
before validating it, and then executes the block

qa/qa/runtime/address.rb

@@ -5,7 +5,7 @@ module QA
     class Address
       attr_reader :address
 
-      def initialize(instance, page = nil)
+      def initialize(instance, page)
         @instance = instance
         @address  = host + (page.is_a?(String) ? page : page&.path)
       end

qa/qa/runtime/browser.rb

 # frozen_string_literal: true
 
 require 'rspec/core'
+require 'rspec/expectations'
 require 'capybara/rspec'
 require 'capybara-screenshot/rspec'
 require 'selenium-webdriver'
@@ -27,13 +28,12 @@ module QA
       # In case of an address that is a symbol we will try to guess address
       # based on `Runtime::Scenario#something_address`.
       #
-      def visit(address, page = nil, &block)
-        Browser::Session.new(address, page).perform(&block)
+      def visit(address, page_class, &block)
+        Browser::Session.new(address, page_class).perform(&block)
       end
 
-      def self.visit(address, page = nil, &block)
-        new.visit(address, page, &block)
-        page.validate_elements_present!
+      def self.visit(address, page_class, &block)
+        new.visit(address, page_class, &block)
       end
 
       def self.configure!
@@ -128,8 +128,11 @@ module QA
       class Session
         include Capybara::DSL
 
-        def initialize(instance, page = nil)
-          @session_address = Runtime::Address.new(instance, page)
+        attr_reader :page_class
+
+        def initialize(instance, page_class)
+          @session_address = Runtime::Address.new(instance, page_class)
+          @page_class = page_class
         end
 
         def url
@@ -139,6 +142,8 @@ module QA
         def perform(&block)
           visit(url)
 
+          page_class.validate_elements_present!
+
           if QA::Runtime::Env.qa_cookies
             browser = Capybara.current_session.driver.browser
             QA::Runtime::Env.qa_cookies.each do |cookie|