| /* ==================================================================== |
| Licensed to the Apache Software Foundation (ASF) under one or more |
| contributor license agreements. See the NOTICE file distributed with |
| this work for additional information regarding copyright ownership. |
| The ASF licenses this file to You 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 org.apache.poi.xssf.usermodel; |
| |
| import static org.junit.Assert.*; |
| |
| import java.io.IOException; |
| import java.util.List; |
| |
| import org.apache.poi.ss.util.CellRangeAddress; |
| import org.apache.poi.xssf.XSSFTestDataSamples; |
| import org.junit.Test; |
| |
| public class TestXSSFSheetMergeRegions { |
| @Test |
| public void testMergeRegionsSpeed() throws IOException { |
| final XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook("57893-many-merges.xlsx"); |
| try { |
| final XSSFSheet sheet = wb.getSheetAt(0); |
| final long start = System.currentTimeMillis(); |
| final List<CellRangeAddress> mergedRegions = sheet.getMergedRegions(); |
| assertEquals(50000, mergedRegions.size()); |
| for (CellRangeAddress cellRangeAddress : mergedRegions) { |
| assertEquals(cellRangeAddress.getFirstRow(), cellRangeAddress.getLastRow()); |
| assertEquals(2, cellRangeAddress.getNumberOfCells()); |
| } |
| long millis = System.currentTimeMillis() - start; |
| // This time is typically ~800ms, versus ~7800ms to iterate getMergedRegion(int). |
| assertTrue("Should have taken <2000 ms to iterate 50k merged regions but took " + millis, millis < 2000); |
| } finally { |
| wb.close(); |
| } |
| } |
| } |