added cookie ruby file (SeleniumHQ#2303)

* added cookir ruby file

* corrected errors cookie code

* fixed lint concerns ruby file

* corrected lint white space errors cookie code

* fixed lint white space more issues

* fixed add line lint concerns ruby file

* fixed lint concerns ruby file

* lint issues

Author: rpallavisharma

examples/ruby/spec/interactions/cookies_spec.rb

@@ -4,4 +4,59 @@
 
 RSpec.describe 'Cookies' do
   let(:driver) { start_session }
+
+  it 'adds a cookie' do
+    driver.navigate.to 'https://www.selenium.dev/selenium/web/blank.html'
+    # Add cookie into current browser context
+    driver.manage.add_cookie(name: 'key', value: 'value')
+    # Verify cookie was added
+    expect(driver.manage.cookie_named('key')[:value]).to eq('value')
+  end
+
+  it 'gets a named cookie' do
+    driver.navigate.to 'https://www.selenium.dev/selenium/web/blank.html'
+    # Add cookie into current browser context
+    driver.manage.add_cookie(name: 'foo', value: 'bar')
+    # Get cookie details with named cookie 'foo'
+    cookie = driver.manage.cookie_named('foo')
+    expect(cookie[:value]).to eq('bar')
+  end
+
+  it 'gets all cookies' do
+    driver.navigate.to 'https://www.selenium.dev/selenium/web/blank.html'
+    # Add cookies into current browser context
+    driver.manage.add_cookie(name: 'test1', value: 'cookie1')
+    driver.manage.add_cookie(name: 'test2', value: 'cookie2')
+    # Get cookies
+    cookies = driver.manage.all_cookies
+    # Verify both cookies exist with correct values
+    test1_cookie = cookies.find { |c| c[:name] == 'test1' }
+    test2_cookie = cookies.find { |c| c[:name] == 'test2' }
+    expect(test1_cookie[:value]).to eq('cookie1')
+    expect(test2_cookie[:value]).to eq('cookie2')
+  end
+
+  it 'deletes a cookie by name' do
+    driver.navigate.to 'https://www.selenium.dev/selenium/web/blank.html'
+    driver.manage.add_cookie(name: 'test1', value: 'cookie1')
+    # Verify cookie exists
+    expect(driver.manage.cookie_named('test1')).not_to be_nil
+    # Delete cookie named
+    driver.manage.delete_cookie('test1')
+    # Verify cookie is deleted
+    expect { driver.manage.cookie_named('test1') }.to raise_error(Selenium::WebDriver::Error::NoSuchCookieError)
+  end
+
+  it 'deletes all cookies' do
+    driver.navigate.to 'https://www.selenium.dev/selenium/web/blank.html'
+    # Add cookies into current browser context
+    driver.manage.add_cookie(name: 'test1', value: 'cookie1')
+    driver.manage.add_cookie(name: 'test2', value: 'cookie2')
+    # Verify cookies exist
+    expect(driver.manage.all_cookies.size).to eq(2)
+    # Delete All cookies
+    driver.manage.delete_all_cookies
+    # Verify all cookies are deleted
+    expect(driver.manage.all_cookies.size).to eq(0)
+  end
 end