494c506d56
Based on the number of unique shared strings as well as the available memory amount, one strategy will be chosen over the other. The algorithm is based on empirical data and super safe so it may need to be tuned.
113 lines
3.5 KiB
PHP
113 lines
3.5 KiB
PHP
<?php
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namespace Box\Spout\Reader\Helper\XLSX;
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use Box\Spout\Reader\Helper\XLSX\SharedStringsCaching\CachingStrategyFactory;
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use Box\Spout\Reader\Helper\XLSX\SharedStringsCaching\FileBasedStrategy;
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use Box\Spout\Reader\Helper\XLSX\SharedStringsCaching\InMemoryStrategy;
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use Box\Spout\TestUsingResource;
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/**
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* Class SharedStringsHelperTest
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*
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* @package Box\Spout\Reader\Helper\XLSX
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*/
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class SharedStringsHelperTest extends \PHPUnit_Framework_TestCase
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{
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use TestUsingResource;
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/** @var SharedStringsHelper */
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private $sharedStringsHelper;
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/**
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* @return void
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*/
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public function setUp()
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{
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$resourcePath = $this->getResourcePath('one_sheet_with_shared_strings.xlsx');
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$this->sharedStringsHelper = new SharedStringsHelper($resourcePath);
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}
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/**
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* @return void
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*/
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public function tearDown()
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{
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$this->sharedStringsHelper->cleanup();
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}
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/**
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* @expectedException \Box\Spout\Reader\Exception\SharedStringNotFoundException
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* @return void
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*/
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public function testGetStringAtIndexShouldThrowExceptionIfStringNotFound()
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{
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$this->sharedStringsHelper->extractSharedStrings();
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$this->sharedStringsHelper->getStringAtIndex(PHP_INT_MAX);
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}
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/**
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* @return void
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*/
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public function testGetStringAtIndexShouldReturnTheCorrectStringIfFound()
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{
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$this->sharedStringsHelper->extractSharedStrings();
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$sharedString = $this->sharedStringsHelper->getStringAtIndex(0);
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$this->assertEquals('s1--A1', $sharedString);
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$sharedString = $this->sharedStringsHelper->getStringAtIndex(24);
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$this->assertEquals('s1--E5', $sharedString);
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$usedCachingStrategy = \ReflectionHelper::getValueOnObject($this->sharedStringsHelper, 'cachingStrategy');
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$this->assertTrue($usedCachingStrategy instanceof InMemoryStrategy);
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}
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/**
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* @return void
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*/
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public function testGetStringAtIndexShouldWorkWithMultilineStrings()
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{
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$resourcePath = $this->getResourcePath('one_sheet_with_shared_multiline_strings.xlsx');
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$sharedStringsHelper = new SharedStringsHelper($resourcePath);
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$sharedStringsHelper->extractSharedStrings();
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$sharedString = $sharedStringsHelper->getStringAtIndex(0);
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$this->assertEquals("s1\nA1", $sharedString);
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$sharedString = $sharedStringsHelper->getStringAtIndex(24);
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$this->assertEquals("s1\nE5", $sharedString);
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$sharedStringsHelper->cleanup();
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}
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/**
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* @return void
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*/
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public function testGetStringAtIndexWithFileBasedStrategy()
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{
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// force the file-based strategy by setting no memory limit
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$originalMemoryLimit = ini_get('memory_limit');
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ini_set('memory_limit', '-1');
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$resourcePath = $this->getResourcePath('sheet_with_lots_of_shared_strings.xlsx');
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$sharedStringsHelper = new SharedStringsHelper($resourcePath);
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$sharedStringsHelper->extractSharedStrings();
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$sharedString = $sharedStringsHelper->getStringAtIndex(0);
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$this->assertEquals('str', $sharedString);
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$sharedString = $sharedStringsHelper->getStringAtIndex(CachingStrategyFactory::MAX_NUM_STRINGS_PER_TEMP_FILE + 1);
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$this->assertEquals('str', $sharedString);
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$usedCachingStrategy = \ReflectionHelper::getValueOnObject($sharedStringsHelper, 'cachingStrategy');
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$this->assertTrue($usedCachingStrategy instanceof FileBasedStrategy);
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$sharedStringsHelper->cleanup();
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ini_set('memory_limit', $originalMemoryLimit);
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}
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}
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