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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 org.junit.Test;
import com.vaadin.server.ServerRpcManager;
import com.vaadin.shared.data.selection.SelectionServerRpc;
import com.vaadin.tests.util.MockUI;
public class ComboBoxTest {
@Test
public void testResetValue() {
ComboBox<String> comboBox = new ComboBox<>();
comboBox.setItems("one", "two");
// Reset value whenever it changes (in a real case, this listener would
// do something with the selected value before discarding it)
comboBox.addValueChangeListener(e -> comboBox.setValue(null));
// "Attach" the component and initialize diffstate
new MockUI().setContent(comboBox);
ComponentTest.syncToClient(comboBox);
// Emulate selection of "one"
String oneKey = comboBox.getDataCommunicator().getKeyMapper()
.key("one");
ServerRpcManager.getRpcProxy(comboBox, SelectionServerRpc.class)
.select(oneKey);
ComponentTest.assertEncodedStateProperties(comboBox,
"Selection change done by the listener should be sent to the client",
"selectedItemKey");
}
}
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