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- /* ====================================================================
- 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.apache.logging.log4j.util.Unbox.box;
- import static org.junit.jupiter.api.Assertions.*;
-
- import java.io.IOException;
- import java.util.List;
-
- import org.apache.logging.log4j.LogManager;
- import org.apache.logging.log4j.Logger;
- import org.apache.poi.ss.util.CellRangeAddress;
- import org.apache.poi.xssf.XSSFTestDataSamples;
- import org.junit.jupiter.api.Test;
-
- class TestXSSFSheetMergeRegions {
-
- private static final Logger LOG = LogManager.getLogger(TestXSSFSheetMergeRegions.class);
-
- @Test
- void testMergeRegionsSpeed() throws IOException {
- try (XSSFWorkbook wb = XSSFTestDataSamples.openSampleWorkbook("57893-many-merges.xlsx")) {
- long millis = Long.MAX_VALUE;
-
- // in order to reduce the number of false positives we run it a few times before we fail,
- // sometimes it fails on machines that are busy at the moment.
- for (int i = 0; i < 5; i++) {
- millis = runTest(wb);
- if (millis < 2000) {
- break;
- }
- LOG.atInfo().log("Retry {} because run-time is too high: {}", box(i),box(millis));
- }
-
- boolean inGump = false;
- String version = System.getProperty("version.id");
- if (version != null && version.startsWith("gump-")) {
- inGump = true;
- }
-
- // This time is typically ~800ms, versus ~7800ms to iterate getMergedRegion(int).
- // when running in Gump, the VM is very slow, so we should allow much more time
- assertTrue(inGump ? millis < 8000 : millis < 2000,
- "Should have taken <2000 ms to iterate 50k merged regions but took " + millis);
- }
- }
-
- private long runTest(final XSSFWorkbook wb) {
- final long start = System.currentTimeMillis();
- final XSSFSheet sheet = wb.getSheetAt(0);
- final List<CellRangeAddress> mergedRegions = sheet.getMergedRegions();
- assertEquals(50000, mergedRegions.size());
- for (CellRangeAddress cellRangeAddress : mergedRegions) {
- assertEquals(cellRangeAddress.getFirstRow(), cellRangeAddress.getLastRow());
- assertEquals(2, cellRangeAddress.getNumberOfCells());
- }
- return System.currentTimeMillis() - start;
- }
- }
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