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ShowNonEmptyValues.java
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ShowNonEmptyValues.java
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/**
* Copyright 2014 ArcBees Inc.
*
* 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.arcbees.chosen.integrationtest.client.testcases;
import java.util.List;
import com.arcbees.chosen.client.gwt.ChosenValueListBox;
import com.arcbees.chosen.integrationtest.client.TestCase;
import com.arcbees.chosen.integrationtest.client.domain.CarBrand;
import com.google.common.collect.Lists;
import com.google.gwt.text.shared.AbstractRenderer;
import com.google.gwt.text.shared.Renderer;
import com.google.gwt.user.client.ui.RootPanel;
/**
* This test makes sure that when null values are rendered as a non-empty string,
* then that exact non-empty string will be displayed in the dropdown options.
*/
public class ShowNonEmptyValues extends TestCase {
public static final Renderer<CarBrand> RENDERER = new AbstractRenderer<CarBrand>() {
@Override
public String render(CarBrand object) {
if (object == null) {
return "Placeholder for null";
}
return object.name();
}
};
@Override
public void run() {
ChosenValueListBox<CarBrand> listBox = new ChosenValueListBox<CarBrand>(RENDERER);
List<CarBrand> carBrands = Lists.newArrayList(CarBrand.values());
carBrands.add(0, null);
listBox.setAcceptableValues(carBrands);
listBox.setValue(null);
RootPanel.get().add(listBox);
}
}