[rb] implement endpoint for deleting network conditions

rb/lib/selenium/webdriver/chrome/features.rb

@@ -31,6 +31,7 @@ module Features
           stop_casting: [:post, 'session/:session_id/goog/cast/stop_casting'],
           get_network_conditions: [:get, 'session/:session_id/chromium/network_conditions'],
           set_network_conditions: [:post, 'session/:session_id/chromium/network_conditions'],
+          delete_network_conditions: [:delete, 'session/:session_id/chromium/network_conditions'],
           send_command: [:post, 'session/:session_id/goog/cdp/execute'],
           get_available_log_types: [:get, 'session/:session_id/se/log/types'],
           get_log: [:post, 'session/:session_id/se/log']
@@ -72,6 +73,10 @@ def network_conditions=(conditions)
           execute :set_network_conditions, {}, {network_conditions: conditions}
         end
 
+        def delete_network_conditions
+          execute :delete_network_conditions
+        end
+
         def send_command(command_params)
           execute :send_command, {}, command_params
         end

rb/lib/selenium/webdriver/common/driver_extensions/has_network_conditions.rb

@@ -45,6 +45,14 @@ def network_conditions=(conditions)
           @bridge.network_conditions = conditions
         end
 
+        #
+        # Resets Chromium network emulation settings.
+        #
+
+        def delete_network_conditions
+          @bridge.delete_network_conditions
+        end
+
       end # HasNetworkConditions
     end # DriverExtensions
   end # WebDriver

rb/spec/integration/selenium/webdriver/chrome/driver_spec.rb

@@ -126,6 +126,19 @@ module Chrome
           end
         end
 
+        it 'manages network features' do
+          driver.network_conditions = {offline: false, latency: 56, download_throughput: 789, upload_throughput: 600}
+          conditions = driver.network_conditions
+          expect(conditions['offline']).to eq false
+          expect(conditions['latency']).to eq 56
+          expect(conditions['download_throughput']).to eq 789
+          expect(conditions['upload_throughput']).to eq 600
+          driver.delete_network_conditions
+
+          error = /network conditions must be set before it can be retrieved/
+          expect { driver.network_conditions }.to raise_error(Error::UnknownError, error)
+        end
+
         # This requires cast sinks to run
         it 'casts' do
           # Does not get list correctly the first time for some reason