Add normalize_ws support to :text filter of selector queries

lib/capybara/queries/selector_query.rb

@@ -4,7 +4,7 @@ module Capybara
   module Queries
     class SelectorQuery < Queries::BaseQuery
       attr_reader :expression, :selector, :locator, :options
-      VALID_KEYS = COUNT_KEYS + %i[text id class visible exact exact_text match wait filter_set]
+      VALID_KEYS = COUNT_KEYS + %i[text id class visible exact exact_text normalize_ws match wait filter_set]
       VALID_MATCH = %i[first smart prefer_exact one].freeze
 
       def initialize(*args,
@@ -338,10 +338,14 @@ module Capybara
         matches_text_regexp?(node, regexp)
       end
 
+      def normalize_ws
+        options.fetch(:normalize_ws, session_options.default_normalize_ws)
+      end
+
       def matches_text_regexp?(node, regexp)
         text_visible = visible
         text_visible = :all if text_visible == :hidden
-        !!node.text(text_visible).match(regexp)
+        !!node.text(text_visible, normalize_ws: normalize_ws).match(regexp)
       end
     end
   end

lib/capybara/spec/session/has_selector_spec.rb

@@ -78,6 +78,23 @@ Capybara::SpecHelper.spec '#has_selector?' do
         expect(@session).to have_selector(:css, 'p a#foo', 'extra')
       end.to raise_error ArgumentError, /extra/
     end
+
+    context 'with whitespace normalization' do
+      context 'Capybara.default_normalize_ws = false' do
+        it 'should support normalize_ws option' do
+          Capybara.default_normalize_ws = false
+          expect(@session).not_to have_selector(:id, 'second', text: 'text with whitespace')
+          expect(@session).to have_selector(:id, 'second', text: 'text with whitespace', normalize_ws: true)
+        end
+      end
+      context 'Capybara.default_normalize_ws = true' do
+        it 'should support normalize_ws option' do
+          Capybara.default_normalize_ws = true
+          expect(@session).to have_selector(:id, 'second', text: 'text with whitespace')
+          expect(@session).not_to have_selector(:id, 'second', text: 'text with whitespace', normalize_ws: false)
+        end
+      end
+    end
   end
 
   context 'with exact_text' do