['java_2e', 'java programing'], 'product management' => ['product management techniques', 'product management'], ]; $keywordProcessor->addKeywordsFromAssocArray($keywordAssocArray); $sentence = 'I know java_2e and product management techniques'; $keywordsExtracted= $keywordProcessor->extractKeywords($sentence); $this->assertEquals(['java', 'product management'], $keywordsExtracted, 'Failed file format one test'); $sentenceNew= $keywordProcessor->replaceKeywords($sentence); $this->assertEquals('I know java and product management', $sentenceNew, 'Failed file format one test'); } }