| /* |
| * Copyright 2010 Google 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.google.gwt.user.cellview.client; |
| |
| import com.google.gwt.view.client.HasRows; |
| import com.google.gwt.view.client.MockHasData; |
| |
| /** |
| * Tests for {@link PageSizePager}. |
| */ |
| public class PageSizePagerTest extends AbstractPagerTest { |
| |
| private static final int PAGE_INCREMENT = 100; |
| |
| public void testNextButtonsDisabled() { |
| PageSizePager pager = createPager(); |
| |
| // Buttons are hidden by default. |
| assertFalse(pager.isShowLessButtonVisible()); |
| assertFalse(pager.isShowMoreButtonVisible()); |
| |
| // Set the display. |
| HasRows display = new MockHasData<String>(); |
| display.setRowCount(1000); |
| pager.setDisplay(display); |
| |
| // Show number of rows equal to increment. |
| display.setVisibleRange(0, PAGE_INCREMENT); |
| assertFalse(pager.isShowLessButtonVisible()); |
| assertTrue(pager.isShowMoreButtonVisible()); |
| |
| // Show more than increment. |
| display.setVisibleRange(0, PAGE_INCREMENT + 1); |
| assertTrue(pager.isShowLessButtonVisible()); |
| assertTrue(pager.isShowMoreButtonVisible()); |
| |
| // Show all rows. |
| display.setVisibleRange(0, 1000); |
| assertTrue(pager.isShowLessButtonVisible()); |
| assertFalse(pager.isShowMoreButtonVisible()); |
| } |
| |
| @Override |
| protected PageSizePager createPager() { |
| return new PageSizePager(PAGE_INCREMENT); |
| } |
| } |