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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.util.ArrayList;
import java.util.Arrays;
import org.junit.Assert;
import org.junit.Test;
import com.vaadin.server.data.DataSource;
import com.vaadin.shared.data.selection.SelectionModel.Multi;
public class CheckBoxGroupTest {
@Test
public void stableSelectionOrder() {
CheckBoxGroup<String> checkBoxGroup = new CheckBoxGroup<>();
// Intentional deviation from upcoming selection order
checkBoxGroup
.setDataSource(DataSource.create("Third", "Second", "First"));
Multi<String> selectionModel = checkBoxGroup.getSelectionModel();
selectionModel.select("First");
selectionModel.select("Second");
selectionModel.select("Third");
assertSelectionOrder(selectionModel, "First", "Second", "Third");
selectionModel.deselect("First");
assertSelectionOrder(selectionModel, "Second", "Third");
selectionModel.select("First");
assertSelectionOrder(selectionModel, "Second", "Third", "First");
}
private static void assertSelectionOrder(Multi<String> selectionModel,
String... selectionOrder) {
Assert.assertEquals(Arrays.asList(selectionOrder),
new ArrayList<>(selectionModel.getSelectedItems()));
}
}
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