/**
  * @dataProvider seekChunkChangeDataProvider
  */
 public function testSeekChunkChange($jumpTo, $moreValidElements = true)
 {
     $csvContent = $this->getContent(202);
     $filePath = $this->setUpVirtualFileAndGetPath($csvContent);
     $csvIterator = new Iterator($filePath, ';');
     $csvIterator->rewind();
     $csvIterator->seek($jumpTo);
     $this->assertTrue($csvIterator->valid());
     $this->assertEquals(array('col1' => "val1-{$jumpTo}", 'col2' => "val2-{$jumpTo}"), $csvIterator->current());
     $this->assertEquals($jumpTo, $csvIterator->key());
     $csvIterator->next();
     if ($moreValidElements) {
         $next = $jumpTo + 1;
         $this->assertTrue($csvIterator->valid());
         $this->assertEquals(array('col1' => "val1-{$next}", 'col2' => "val2-{$next}"), $csvIterator->current());
         $this->assertEquals($next, $csvIterator->key());
         return;
     }
     $this->assertFalse($csvIterator->valid());
     $csvIterator->rewind();
     $this->assertTrue($csvIterator->valid());
     $this->assertEquals(array('col1' => "val1-1", 'col2' => "val2-1"), $csvIterator->current());
     $this->assertEquals(1, $csvIterator->key());
 }