/**
  * @dataProvider conversionDataProvider
  */
 public function testFetchConversionData($thousands, $decimal, $correspondsTo, $unitIds, $unitFactors, $mainUnit, $prefixalUnitPreference)
 {
     $cachedPropertyValuesPrefetcher = $this->getMockBuilder('\\SMW\\CachedPropertyValuesPrefetcher')->disableOriginalConstructor()->getMock();
     $cachedPropertyValuesPrefetcher->expects($this->once())->method('getPropertyValues')->will($this->returnValue(array($this->dataItemFactory->newDIBlob($correspondsTo))));
     $numberValue = new NumberValue();
     $numberValue->setOption('separator.thousands', $thousands);
     $numberValue->setOption('separator.decimal', $decimal);
     $instance = new UnitConversionFetcher($numberValue, $cachedPropertyValuesPrefetcher);
     $instance->fetchConversionData($this->dataItemFactory->newDIProperty('Foo'));
     $this->assertEmpty($instance->getErrors());
     $this->assertEquals($unitIds, $instance->getUnitIds());
     $this->assertEquals($unitFactors, $instance->getUnitFactors());
     $this->assertEquals($mainUnit, $instance->getMainUnit());
     $this->assertEquals($prefixalUnitPreference, $instance->getPrefixalUnitPreference());
 }