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/*
* Copyright 2000-2016 Vaadin Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.vaadin.ui;
import java.lang.reflect.Method;
import com.vaadin.server.ClientConnector;
import com.vaadin.server.ServerRpcManager;
import com.vaadin.shared.communication.ServerRpc;
/**
* Base class for component unit tests, providing helper methods for e.g.
* invoking RPC and updating diff state.
*/
public class ComponentTest {
/**
* Perform operations on the component similar to what would be done when
* the component state is communicated to the client, e.g. update diff state
* and mark as clean.
*
* @param component
* the component to update
*/
public static void syncToClient(AbstractComponent component) {
updateDiffState(component);
component.getUI().getConnectorTracker().markClean(component);
}
/**
* Checks if the connector has been marked dirty.
*
* @param connector
* the connector to check
* @return <code>true</code> if the connector has been marked dirty,
* <code>false</code> otherwise
*/
public static boolean isDirty(ClientConnector connector) {
return connector.getUI().getConnectorTracker().isDirty(connector);
}
/**
* Updates the stored diff state from the current component state.
*
* @param rta
* the component to update
*/
public static void updateDiffState(AbstractComponent component) {
component.getUI().getSession().getCommunicationManager()
.encodeState(component, component.getState());
}
/**
* Gets the server rpc handler registered for a component.
*
* @param component
* the component which listens to the RPC
* @param serverRpcClass
* the server RPC class
* @return the server RPC handler
*/
public static <T extends ServerRpc> T getRpcProxy(Component component,
Class<T> serverRpcClass) {
try {
ServerRpcManager<?> rpcManager = component
.getRpcManager(serverRpcClass.getName());
Method method = ServerRpcManager.class
.getDeclaredMethod("getImplementation");
method.setAccessible(true);
return serverRpcClass.cast(method.invoke(rpcManager));
} catch (ReflectiveOperationException e) {
throw new RuntimeException(e);
}
}
}
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